KR20130005302A - Apparatuses, methods, and systems for an electronic device with a detachable user input attachment - Google Patents

Abstract

The electronic device 100 may provide a user with the choice of using a user input accessory to provide the user with the option of using the touch sensitive display 101 alone or in conjunction with a control or keypad having physical keys to enhance the tactile user experience. 102 is operable. The electronic device 100 includes a touch sensitive display 101 and a controller 104 operable with the touch sensitive display 101. When the user input accessory 102 is coupled to the touch sensitive display 101, the identification module 106 is configured to identify the user input accessory 102 by the time signature signal 110. Once identified, the adaptation module 107 is configured to reconfigure the electronic device 100 in response to the attached user input accessory 102.

Description

APPARATUS, METHODS AND SYSTEMS FOR ELECTRONIC DEVICES WITH SEPARABLE USER INPUT ACCESSORIES

The present invention relates generally to methods and systems for using a user input accessory, which may be attachable to a touch sensitive display or surface within an electronic device, either by a user or a manufacturer at the point of sale, in particular a touch sensitive surface or A method and system for using a user input accessory having a time identification signature operable with an electromagnetic sensor in a display.

In today's society, "intelligent" electronic devices are becoming more and more prevalent. For example, in the not too distant past, portable phones have been extremely simplified devices with 12-key keypads that only make phone calls. Today, "smart" phones, personal digital assistants (PDAs) and other portable electronic devices are configured to perform phone calls as well as manage address books, maintain calendars, play music and video, view photos and surf the web.

As the capabilities of these electronic devices have advanced, so have the user interfaces. Previous keypads with a limited number of keys have been replaced by sophisticated user input devices such as touch sensitive screens or touch sensitive pads. Touch sensing systems, including touch sensitive displays, touch sensitive pads, and the like, include sensors for sensing the presence of an object such as a finger or stylus. By placing the object on the touch sensitive system, the user can operate and control the electronic device without the need for a physical keypad.

One advantage associated with such touch sensing systems is that the user interface can be configured to change the input mode. For example, in one application, the user interface may be configured as a music player (with play, pause, fast forward and rewind keys), while in other applications the same user interface may be reconfigured as a QWERTY keyboard.

One disadvantage associated with such touch sensing systems relates to the user experience. Humans often prefer to identify control actions with feedback. In the context of electronic devices, such feedback is often expected to be tactile, visual and audio. In other words, when a user operates a "button" on an electronic device such as a smartphone, users generally prefer to know if the button was pressed by receiving some tactile feedback as well as visual and audio feedback. One disadvantage of touch-sensitive displays is that there is no physical button, so the user cannot feel the outlines of the keys or feel the "push back" of the keys to the fingers when actuated and / or released. . Thus, a device with a touch-sensitive display with few or no buttons can deliver less than optimal experience.

Another disadvantage of touch sensitive devices is that the virtual keys displayed on the device can be small. Quite often, a user who wants to hit a virtual Q-key on a QWERTY keyboard can hit the virtual W-key and vice versa. Since the user cannot determine by touch whether the finger is actually on the virtual key, a typo mistake may occur. In other words, user accuracy is poor.

Thus, there is a need for an improved electronic device that provides the flexibility of a touch-sensitive display, which still discusses the problems discussed above.

Like reference numerals refer to the same or functionally similar elements throughout the separate drawings, and the accompanying drawings, which are incorporated in and constitute a part of the specification, together with the following detailed description, further illustrate various embodiments and all of which are incorporated herein by reference. Function to explain various principles and advantages.
1 illustrates one sample electronic device having a touch-sensitive display with a user input accessory in accordance with an embodiment of the present invention.
2 shows an exploded view of one user input accessory according to an embodiment of the invention.
3 illustrates one user input accessory comprising a plurality of conductive pads disposed on a second major face and arranged in a characteristic configuration, in accordance with an embodiment of the invention.
4 illustrates a perspective view of an electronic device having a touch sensitive display incorporating a user input accessory in accordance with an embodiment of the present invention.
Figure 5 illustrates another embodiment of a user input accessory coupled to an electronic device, in accordance with an embodiment of the present invention.
6 illustrates another embodiment in which a user input accessory is attached to a touch sensitive display, in accordance with an embodiment of the invention.
7 illustrates an exemplary first mode of operation within an electronic device configured in accordance with an embodiment of the invention.
8 illustrates an exemplary second mode of operation for an electronic device to which a user input accessory is attached in accordance with an embodiment of the invention.
9 illustrates an exemplary third mode of operation for an electronic device having a user input accessory attached to the electronic device at a central location along a touch sensitive display, in accordance with an embodiment of the invention.
10 shows a schematic block diagram of an electronic device, including an exploded view of one touch sensitive display, constructed in accordance with an embodiment of the invention.
11 illustrates an exemplary method of operation of an electronic device configured to operate using a detachable user input accessory, in accordance with an embodiment of the invention.
12 illustrates different configurations of various user input accessories in accordance with an embodiment of the present invention.
Figure 13 illustrates one mechanical coupling suitable for use between an electronic device and a user input accessory in accordance with an embodiment of the present invention.
14-17 illustrate another mechanical coupling suitable for use with an electronic device and a user input accessory in accordance with an embodiment of the present invention.
18-19 illustrate a change or adaptation of an operation mode, based on a location or point of contact between a user input accessory and an electronic device, in accordance with an embodiment of the invention.
20-28 illustrate exemplary mechanical cross-sections suitable for use in a user input accessory constructed in accordance with an embodiment of the invention.
29 illustrates one operation mode or usage application suitable for an electronic device operating with a sample user input accessory in accordance with an embodiment of the present invention.
30 illustrates one electronic device and one user input accessory as well as characteristic time signals delivered to the electronic device by the user input accessory through one or more conductive pads, in accordance with an embodiment of the present invention.
Figure 31 illustrates one method of illuminating a user input accessory according to an embodiment of the present invention.
32 illustrates one method of illuminating a user input accessory according to an embodiment of the present invention.
FIG. 33 illustrates a sample electronic device and user input accessory in accordance with an embodiment of the present invention, wherein the sample electronic device includes a visible portion of the touch sensitive display, and a display portion where dynamic data is not displayed.
34 illustrates a sample electronic device and user input accessory in accordance with an embodiment of the present invention wherein the sample electronic device includes a touch sensitive area other than the area associated with the touch sensitive display.
Figure 35 illustrates one embodiment of a collapsible user input accessory configured in accordance with one embodiment of the present invention.
Those skilled in the art will understand that the elements of the figures are shown for brevity and clarity and need not necessarily be drawn to scale. For example, the dimensions of some of the elements in the figures may be exaggerated relative to other elements to help improve understanding of embodiments of the present invention.

Embodiments of the present invention provide an electronic device and an attachable user input accessory. The module may be configured as a detachable user input accessory or intended as a permanent accessory to the electronic device.

In one embodiment, the electronic device has a touch sensitive surface that generates and monitors a surface electromagnetic field, such as a touch screen or touch pad. In one embodiment, the touch sensitive surface includes a capacitive field sensor. In another embodiment, the touch sensitive surface includes a magnetic field sensor.

The user input accessory may be configured to be coupled to the touch sensitive surface and optionally configured to be selectively removed from the touch sensitive surface. The user input accessory may be configured to have one or more haptic keys to act as a keypad and / or to provide tactile and mechanical feedback when a key is pressed. Optionally, other control devices such as sliders, switches, toggle switches, joysticks, etc. may be included in the user input accessory.

The controller operable with the touch sensitive surface, in one embodiment, includes an operation module configured to identify the type and configuration of the user input accessory and to adapt the mode of operation of the electronic device in response to the identification of the accessory. . In one embodiment, when the user input device is coupled to the touch sensitive surface, the user input accessory communicates a temporal signature signal to the electronic device through the capacitive field sensor of the touch sensitive surface. In one embodiment, the time signature signal includes characteristic amplitude, surface area, and time-based signature. An identification module operable with the controller is configured to identify the user input accessory from the time signature signal. Upon identification, the adaptation module is then configured to reconfigure the electronic device in response to this identification.

In one embodiment, when the user input accessory is initially attached to the touch sensitive surface, the identification module is configured to respond to one or more conductive pads on the user input accessory located within the electromagnetic field generated by the touch sensitive display. Analyze the time signature signal detected by the electromagnetic sensor. The time signature signal may include features such as signal amplitude, signal surface area, characteristic attenuation, characteristic slope, or characteristic change within the slope. From the time signals generated by the conductive pads and optional non-active (non-power) components such as inductors, capacitors and resistors (which may not be separate components) configured in the secondary circuit, the identification module may be a user input accessory. Detect the presence of In one embodiment, such detection may also include analyzing the location or configuration of the conductive pad, which may indicate the position and orientation of the user input accessory device. The identification module may then be configured to identify the identity of the user input accessory and / or the conductive pad for the user input accessory thereon, optionally the location or orientation, and in one embodiment the conductivity such as physical configuration, ie shape, size, number, etc. The physical configuration of the pad, or optionally the physical configuration of the user input accessory, including the number of keys, the type of keys, the placement of the keys, etc., is communicated to the adaptation module.

Optionally, the identification module may also notify other electronic device components. For example, in one embodiment, the identification module may notify the display manager or display driver of the detected user input accessory type and optionally its location and orientation. In one embodiment, the identification module provides tactile feedback according to user preference, sensitivity, predefined display or touch-input area, etc., with respect to the type, orientation, physical configuration or location of the user input accessory coupled to the touch sensitive surface. Notify a device feedback control system, such as a heptic subsystem configured to deliver.

As noted above, in one embodiment, the controller uses an adaptation module to reconfigure the electronic device when the user input accessory is attached and identified. Such reconstruction may include optimization of data presentation on a display, such as a touch sensitive display. Examples of optimization include scaling the visible area of the touch-sensitive display so that data is displayed for the user input accessory installed on the touch screen rather than hidden under any opaque portion of the user input accessory. can do. The adaptation module may make further changes related to device performance parameters and user preferences. Other reconstructions may also be performed, such as reconstruction of an illumination layer of a touch-sensitive display. For example, the illumination layer may cause an increase or decrease in illumination (on the entire display or on a selected portion of the display), based on the surrounding environment or power saving requirements, thereby causing the display and / or keying of the display and / or keys on the user input accessory. Can improve visibility.

As an example, the user input accessory is configured as a QWERTY keyboard. When such a user input accessory is coupled to the touch sensitive surface of the electronic device, it is possible for the controller to identify (a) the QWERTY keyboard attached and (b) the position and orientation of the QWERTY keyboard by the characteristic time signature signal. . The adaptation module then configures the electronic device to receive QWERTY keyboard data through conductive pads disposed on the bottom surface or other surface of the user input accessory. In one embodiment, the adaptation module is configured to reconfigure the electronic device based on the identification of the combined QWERTY keyboard accessory and the user preferences stored in memory in the electronic device.

In such a configuration, used by the adaptation module, combined with the potential separability of the user input accessory (and possible alternatives to the different user input accessory), and working with the tactile response delivered by the keys of the user input accessory The user preferences all form a user experience that is difficult to match with the flat touch sensitive surface alone.

In one embodiment, the user input accessory provides a signal corresponding to user operation of a component such as a key without the need for a physical or electromechanical connection such as a plug, port, connector or receptacle, such as using a port or receptacle. It is configured as a keyboard for transmitting to an electronic device or an external power source. When the touch sensitive surface is configured as a capacitive sensor, the mechanical components in the user input accessory change state as the user operates each key. This state change is then transmitted to the conductive pad of the user input accessory and detected by the capacitive sensor of the electronic device. The controller can then read the state change as a user action of a particular key and react accordingly. Thus, the user input accessory can operate without requiring additional electronic component power supplies within the user input accessory.

In one embodiment, the user preferences used by the adaptation module include electronic device reconfiguration preferences that depend on the type of user input accessory coupled to the touch sensitive surface. Such preferences may include tactile feedback or “heptic” profiles defined as predetermined variables. The preference may also include touch sensitivity, a touch sensing area within the area where the input will be received, the number and type of touch sensing buttons on the user input accessory, and other information.

Since the data is visible to the user input accessory and does not exist below the opaque portion of the user input accessory, the preference may further include information regarding display reconfiguration commands for visually optimizing the touch sensitive display. Note that in an embodiment the user input accessory may have a window portion through which the user can see the display portion below it. Other preferences include changes related to predetermined performance parameters for optimal performance and user calibration preferences. If the user input accessory is separated from the touch sensitive surface, the electronic device can be configured to return to normal operation mode.

In one embodiment, the touch-sensitive display illuminates or otherwise illuminates the backlight such that light is projected towards the user when using the electronic device. Thus, in one embodiment the user input accessory is configured to use the light to illuminate a key on the user input accessory. In addition, the preference used by the adaptation module allows the illumination component (s) in the touch-sensitive display to increase or decrease the light output, such that the feature placed along the user input accessory in certain situations, such as dim light. May cause to improve the visibility of the < RTI ID = 0.0 > The preference may also include instructions for reconfiguring the illumination layer of the touch-sensitive display to implement power savings when the electronic device to which the user input accessory is attached is used in strong lighting conditions.

In one embodiment, multiple user input accessories may be attached to an electronic device simultaneously. For example, in one embodiment described below, two user input accessories may be attached to the electronic device at opposite ends of the touch sensitive display to facilitate game control.

The user input accessory can be configured in a variety of ways in accordance with embodiments of the present invention. For example, large key keypads can be individually configured with less than optimal vision. The braille keypad can be configured for the visually impaired. In other embodiments, different user input accessories may be configured for different languages. In this case, a user input accessory of the selected language may be installed for the user at the time of purchasing the electronic device. In addition, in one embodiment when the user input accessory is coupled to the electronic device, the mode of operation of the electronic device may be automatically configured to receive and transmit data in the selected language.

In one embodiment, the user input accessory can be mechanically attached to the electronic device. For example, a mechanical clasp for the user input accessory may be configured to enclose the body of the electronic device to hold the user input accessory relative to the touch sensitive display to be permanent or removable. When used to be removable, the latch allows the user input accessory to be completely separated from the electronic device and treated as an accessory.

In other embodiments, the user input accessory may be mechanically maintained at the electronic device by a lanyard or similar device. This configuration helps to prevent unintentional loss of the user input accessory when detached from the touch sensitive surface of the electronic device.

In another embodiment, a user input accessory can be coupled to the electronic device by a hook and slider mechanism to be detachable from the touch sensitive surface that is still non-removable from the electronic device itself. Other attachment mechanisms include magnetic couplings, snaps, protective case couplings, boot couplings, static attachment connectors, vertical locators, horizontal locators, and the like. Some of these various mechanical configurations will be shown in more detail below. This mechanical embodiment is intended to be illustrative only. As an alternative to the mechanical attachment, the user input accessory may be attached to the touch sensitive surface using static adhesion, mechanical suction or other methods.

Embodiments of the present invention provide a number of potential advantages over prior art data input devices. One potential advantage is the improved tactile feedback provided by the keys of the user input accessory, which is preferred by many users. A second potential advantage is that data input accuracy increases because the user receives a tactile confirmation that the finger is on a particular key before operation, which is not possible with devices with flat-surface touch screens or touch pads.

Subsequently, as described above, the user input accessory configured according to an embodiment of the present invention may include a user input control device other than a key and may replace or increase the user input control device as desired. The user input control device may include a slider, rocker switches, toggle switches, rocker switches, and joystick, to name just a few. Additionally, as shown below, the user input accessory of the present invention may be coupled to the touch sensitive surface of the corresponding electronic device at any number of locations. Thus, it may be so if the user wants to install the user input accessory on top of the touch sensitive display; Similarly, this may also be the case if the user needs to place the user input accessory in the middle of the touch-sensitive display. In addition, when the electronic device to which the user input accessory is coupled includes a sensor in an area other than the display, the user may couple the user input accessory to an area such as the side or the back of the electronic device, but is not limited thereto.

Another potential advantage of embodiments of the present invention involves the physical operation of an electromagnetic field-based touch sensor system. In the electromagnetic field-based touch sensor of the prior art, it is often required for the user to perform physical skin-to-glass contact with the touch sensor in order for the touch to be detected. In other words, a user wearing a glove, for example, may not be easily detected by the touch sensing system since the glove itself may be an insulating medium located between the capacitive sensor and the user's finger. In embodiments of the present invention, no physical skin-to-glass contact is required. Instead, the user activates one of the buttons on the user input accessory. This key actuation sends a signal to one or more conductive pads of the user input accessory regardless of whether an insulating medium is located between the user's finger and the user input accessory. In short, embodiments of the present invention operate regardless of whether the user wears gloves.

In the drawings, FIG. 1 illustrates one embodiment of an electronic device 100 and a user input accessory 102 constructed in accordance with an embodiment of the present invention. In this embodiment, the user input accessory 102 is configured as an accessory that a user can conveniently attach and detach from the electronic device 100. The electronic device 100 includes a touch sensitive display 101 and may optionally include one or more general macro control buttons 103. As shown in more detail below, in one embodiment the touch sensitive display 101 is an electromagnetic field sensor configured to detect the presence of an object—such as a user finger or a conductive stylus—located adjacent to the touch sensitive display 101. It includes.

The user input accessory 102 shown in the exemplary embodiment of FIG. 1 is a "passive" user input accessory. The term “passive” is used because the user input accessory 102 does not require a power source or active electronic components such as an amplifier, power switch or control device to deliver the user actuated input signal to the touch sensitive display 101. .

In one embodiment, user input accessory 102 includes a plurality of user operable keys 108 disposed along first major face 109 of user input accessory 102. As noted above, these plurality of user operable keys 108 may be configured in any of a number of variations. Some of these variations will be shown below in more detail in conjunction with the discussion of FIG. 12. Examples of key configurations include QWERTY keyboards, game specific controls, media player specific controls, navigation controls, user-friendly controls, and the like.

In the example embodiment of FIG. 1, the controller 104 is operable with the touch sensitive display 101 and its electromagnetic field sensors. Controller 104, which may be a microprocessor, programmable logic, application specific integrated circuit device, or other similar device, may execute program instructions as shown in FIG. The program instructions may be stored in either the controller 104 or the memory 105 or other computer readable medium operable with the controller 104.

In one embodiment, the controller 104 is configured to be operable with both the identification module 106 and the adaptation module 107. The identification module and the adaptation module 107 are configured as executable code, alternatively programmable logic, or with other devices integrated into the controller 104, replacing the controller 104, or operable with the controller 104. It can be configured as the same hardware. The controller 104, identification module 106 and adaptation module 107 are also configured to be operable with a display driver to influence and control the presentation of information on the touch sensitive display 101.

As shown in the exemplary embodiment of FIG. 1, the user input accessory 102 is mechanically configured to be attachable and detachable from the touch sensitive display 101. In the example embodiment of FIG. 1, this is accomplished by mechanical arms extending distal from the user input accessory 102 configured to surround the electronic device 100. This separability provides the user freedom to use the entirety of the touch sensitive display on the one hand while using the user input accessory 102 on the other. For example, if the electronic device 100 is a smartphone having a multimedia function, when the user watches a video, which requires little or no data input from the user, the user may move the entire touch-sensitive display 101. You may want to watch the video. In this situation, the user simply separates the user input accessory 102 from the touch sensitive display. As shown below, in one embodiment, the user input accessory 102 is then placed on the back of the electronic device 100 or otherwise tied to the electronic device 100 to prevent the user input accessory from being lost. Can be. Then assume that the user wants to write an e-mail at the end of the video. The user may then attach the user input accessory 102 to the touch sensitive display 101 to use the plurality of user operable keys 108 to enter data into the electronic device 100.

In one embodiment, as shown in more detail in FIG. 3, the user input accessory 102 is configured to transmit a time signature signal 110 to the touch sensitive display 101 when attached. The signature signal is temporal as it changes with time as shown with reference to FIG. 30. This can be accomplished, for example, by using a plurality of conductive pads disposed along the bottom of the user input accessory 102 that interacts with the electromagnetic sensor of the touch sensitive display 101. The conductive pad may be oriented in a predefined configuration at a specific location along the user input accessory 102 and interact with a predetermined size and shape, or a combination thereof, to interact with the electromagnetic field sensor to convey the time signature signal 110. Can have Certain embodiments may use carbon elastomer materials or other conductive materials to form conductive pads. In addition, a protective layer, such as a thin layer of thermoplastic material, can also be placed on the conductive pad.

In one embodiment, the time signature signal 110 is a series of signal magnitudes (m-axis) that are detected over time and spread along the surface (x-y side) of the touch sensitive display 101. In FIG. 1, the x-axis 112 and the y-axis 111, depicted as the time signature signal 110, correspond to the planar dimensions along the touch sensitive display 101. Co-acquisition, hereby incorporated by reference for all purposes, having inventors Timothy Dickinson and William Alberth, filed September 30, 2009, and entitled "Methods and Apparatus for Distinguishing Between Touch System Manipulators" And co-pending US patent application Ser. No. 12 / 570,140, a similar signature signal and analysis thereof are described.

In one embodiment, the identification module 106 analyzes the time signature signal 110 to identify the user input accessory 102. This can be done in a variety of ways, such as determining the xy plane region associated with the time signature signal 110, location, shape and peak magnitude of the time signature signal 110, time-based attenuation of the peaks in the time signature signal 110, and the like. Can be achieved.

Although analysis of the time signature signal 110 is one method of identifying the user input accessory 102, it will be apparent to those skilled in the art that embodiments of the present invention are not so limited. Other identification techniques may be substituted. For example, acoustic sensors can replace electromagnetic field sensors. The identification module 106 may then be configured to analyze the sound received from the sensor when the user attaches a module that determines the identity of the user input accessory 102. Similarly, piezoelectric crystals can replace conductive pads. That is, the identification module 106 may be configured to analyze the vibration signal transmitted by the crystal to the touch sensitive display 101. Alternatively, magnetometers can replace conductive pads. Thus, the identification module 106 can be configured to analyze the change in the magnetic field for the touch sensitive display 101. As another example, optical couplers can replace the conductive pads. Thus, the identification module 106 can be configured to analyze the change in wavelength or reflectance of the light for the touch sensitive display 101.

Using the time signature signal 110, the identification module 106 can detect and analyze various electrical characteristics or signal parameters delivered by the user input accessory 102 to the touch sensitive display 101. In one embodiment, the identification module 106 may be configured to determine the amplitude and / or magnitude of the time signature signal 110 across the touch sensitive display 101. The amplitude can then be monitored to determine the rate of charge dissipation over time to define the "temporal" or time-based characteristics of the signal. The amplitude may be combined with other parameters, such as the area, shape, size, or combination thereof of the time signature signal 110, some or all of which are measured over time.

The resulting temporal characteristic can then be compared to a predefined model, tolerance or threshold limit to uniquely identify the type of user input accessory 102. For example, one type may be an alphanumeric keyboard group, another type may be a numeric keyboard group, and a third type may be a game controller group. From the type identification, the controller 104 can determine the particular configuration and other features of the user input accessory 102 from a predefined list stored in memory. For example, many different accessories for different languages within a single type (eg alphanumeric keypad) and with different key configurations (eg US-QWERTY keyboard, US-Dvorak keyboard, Spanish-QWERTY keyboard, Braille keyboard, etc.). May be present.

The x-y plane position of the time signature signal detected across the touch sensitive display 101 may be a feature used to identify the attachment position and orientation of the user input accessory 102. For example, in addition to performing an analysis on the time signature signal 110 to identify the user input accessory 102, the controller 104 may be configured to determine the location of the signaling and the location of the module. And use the xy plane position information to determine the direction.

For example, in one embodiment controller 104 may use triangulation or other algorithms among the sensors of the electromagnetic sensor to determine the location of signal transmission. However, if the sensor disposed within the touch sensitive display 101 is a capacitive sensor, the controller 104 may be configured to determine the position directly from the signal transmitted by the capacitive sensor. As will be shown later, the user can change the position and orientation of the attached user input accessory 102, and the placement of the module can affect the behavior of the electronic device 100.

After the identification module 106 identifies the user input accessory 102 and optionally its placement (ie, location and / or orientation), the adaptation module 107 is configured to reconfigure the electronic device 100. In one embodiment, this reconfiguration occurs when the user input accessory 102 is attached to the touch sensitive display 101 and identified by the identification module 106.

The adaptation module 107 may reconfigure the electronic device 100 in a variety of different ways. In one embodiment, the adaptation module 107 may be configured to reconfigure how data is displayed on the touch sensitive display 101. For example, the adaptation module 107 may cause data such as photos, text and other information to be displayed adjacent to the user input accessory 102. The term "adjacent" means that the information is displayed around it rather than the opaque portion of the bottom of the user input accessory 102. This reconfiguration ensures that the user input accessory 102 does not block or otherwise prevent the user from viewing the information displayed on the touch sensitive display 101. Such reconfiguration may include moving information, resizing the information, or repositioning the information, as a particular application running on the electronic device 100 may require it.

In another embodiment, the adaptation module 107 may be configured to launch one or more user applications when the user input accessory 102 is attached to the touch sensitive display 101. As an example, if user input accessory 102 is configured as a particular game controller, user preferences in memory may request that a particular game be launched when user input accessory 102 is attached to a touch sensitive surface. Note that the touch sensitive surface need not be a display surface and can be a touchpad as shown in FIG. 34 below. Similarly, if the user input accessory 102 is configured as a media player controller, the user may cause the music player or video player application to be launched by the electronic device when the media player user input accessory 102 is coupled to the touch sensitive surface. You may want Thus, the controller 104 may be configured to work with the adaptation module 107 to achieve this result.

In other embodiments, the adaptation module 107 may be configured to change settings regarding signal levels or other data input characteristics that may or may be received by the touch sensitive surface. For example, the adaptation module 107 compensates for and / or compensates for residual effects of the time signature signal, or user of a key, slider, rocker switch, toggle switch, joystick or other user control of the user input accessory 102. Operation may be configured to recalibrate the electromagnetic sensor of the touch sensitive surface to more accurately receive the signal subsequently transmitted by the passive user input accessory 102.

2 shows an exploded view of the user input accessory 102 shown in FIG. As shown throughout the disclosure, a user input accessory configured in accordance with an embodiment of the present invention may be attached to a touch sensitive surface of an electronic device using various methods. For ease of discussion, in many of the drawings, structural mechanical slides or snaps will be used to illustrate various aspects of the user input accessory. It will be apparent to those skilled in the art having the benefit of this disclosure that embodiments of the invention are not so limited. Other attachment mechanisms may replace mechanical slides or snaps in construction without departing from the spirit or scope of the invention.

In the example embodiment of FIG. 2, the user input accessory 102 includes a keypad portion 220 and a “personality piece” 221. The keypad portion 220 includes a plurality of user operable keys 208 disposed along the first major surface 209 of the keypad portion 220. Mechanical components as shown in FIGS. 20-28 are disposed within keypad portion 220. One or more conductive pads (not shown in FIG. 2 but shown in FIG. 34) configured to alter the electromagnetic field of the electromagnetic field sensor within the touch sensitive surface of the electronic device are opposite the first major surface 209, as shown in FIG. 3. Is disposed along the second major surface 231.

The personality piece 221 includes a mechanical connector suitable for holding the second major surface 231 relative to the touch sensitive surface (not shown). The personality piece 221 may be manufactured from a thermoplastic resin, for example, by an injection molding process. The personality piece 221 may include a mechanical feature, device, connector, or connector 223 for coupling the personality piece 221 to the electronic device 100.

As shown in FIG. 6, in some embodiments a personality piece is not required. However, as shown in Figures 18 and 19, additional features may be provided when the personality piece 221 is used. For example, to avoid accidental misplacement, the user input accessory 102 may be mechanically coupled to the back of the electronic device 100 when not in use.

When the keypad portion 220 and the personality piece 221 are configured as separate components during manufacture, it becomes possible to use one keypad portion 220 having various personality pieces. Thus, the standard keypad portion 220 can be used with electronics having different form factors and coupling mechanisms by attaching copies of the same keypad portion to different personality pieces. The keypad portion 220 can be attached to the personality piece 221 in a variety of ways, including adhesive, heat staking, snap or other retention mechanism. In addition, one personality piece 221 may be designed to accommodate various keypad portions. In such a situation, the standard personality piece 221 for a particular electronic device may be of the same type (eg US-QWERTY keypad part, USA-Dvorak keypad part, Spain-QWERTY keypad part) or different types (eg having a small key). USA-QWERTY keypad portion, numeric keypad portion with large keys, etc.) can be accommodated.

The user input accessory 102 of FIG. 2 is shown not only detachable from the touch sensitive display 101 but also completely detachable from the electronic device 100 as well. This "complete" separability provides some advantages in that it can be tailored to a specific user preference or application. In addition, such accessories may be sold to the consumer separately from the electronic device. In addition, various components can be tailored according to any of the following factors: topology; Topography; Color combinations; language; Application control preferences; Unique electronic device features; Etc.

3 illustrates a bottom perspective view 300 of the user input accessory 102 of FIG. 2 after the keypad portion 220 is coupled to the personality piece 221. In the exemplary embodiment of FIG. 3, a plurality of conductive elastomeric pads 330 are disposed along the second major surface 331 of the keypad portion 220. In one embodiment the plurality of conductive pads 330 are arranged in a characteristic configuration according to a predetermined overall pattern, pad shape or pad size. The plurality of conductive pads 330 are configured to interact with the electromagnetic field sensor of the touch sensitive display 101.

As described above, the keypad portion 220 may include a plurality of user operable keys 208 disposed along the first major surface 209 opposite the second major surface 331. The number of conductive pads may be equal to the number of keys, but in one embodiment the number of conductive pads is less than the number of keys. This facilitates efficient x-y plane design for the user input accessory 102. In this configuration, the signal from each user-activated key can be multiplexed through the fewer conductive pads and delivered to the touch sensitive display 101. In addition, the mechanical aspects of each key can be altered such that other information, such as an angle of attack (whether the key is struck from the west (left), east (right), north, or south by the finger) . If the number of carbon pads is less than the number of keys, the adaptation module 107 may be configured such that the controller 104 is configured to read the multiplexed inputs from the conductive pads in order to properly receive the user's intended input. .

4 illustrates a perspective view of a user input accessory 102 attached to the electronic device 400 such that the second major surface of the keypad portion 420 is disposed adjacent to the touch sensitive display 401 of the electronic device 400. .

In the example embodiment of FIG. 4, the user input accessory 102 is attached to the touch sensitive display 401 toward the bottom of the touch sensitive display 401. Accordingly, the adaptation module 107 may be configured such that the data display window 403 is within the upper portion of the user input accessory 102 (positive y-axis direction) or the data display window 405 is located below the user input accessory 102. Move, resize, position or otherwise reformat the data to fall within the negative y-axis direction) to reconstruct the data representation of the touch sensitive display 401 to be adjacent to the user input accessory 102. .

Since the size of the second data display window 405 is smaller than that of the first data display window 403, the adaptation module 107 may be adapted for applications requiring display of large amounts of data elements, such as photographic display applications. While data can be displayed in 403, an application that requires smaller data display, such as, for example, a stock quote display application, can determine whether data can be displayed in the second data display window 405.

If the position or orientation of the user input accessory 102 is changed by the user, such as sliding or detaching the user input accessory 102 and reattaching it to another position along the touch-sensitive display 101, the adaptation module 107 may determine whether the available display "real estate" above and below the user input accessory 102 is changed. Thus, the adaptation module may cause the running application in the electronic device 400 to display data in different windows to optimize overall visibility to the user.

5 illustrates an alternative embodiment of a user input accessory 502 coupled to the electronic device 500 in accordance with an embodiment of the present invention. In the example embodiment of FIG. 5, the user input accessory 502 is configured as a sleeve surrounding the body of the electronic device 500, with an additional surface usable for the user control.

As shown in FIG. 5, the user input accessory 502 includes a plurality of user operable keys 508 disposed along the first major surface 509 of the user input accessory 502. In addition, the user input accessory 502 includes additional controls 550, 551 on the other outer face of the user input accessory 502. These additional controls 550, 551, in one embodiment, touch the actuation signal, as described above, through a conduit passing through the user input accessory 502 and up to a conductive pad coupled to the touch sensitive display 501. Configured to communicate to the sense display 501. Examples of additional controls 550, 551 include mode selection buttons, navigation buttons, power buttons, and the like. Note that any control device may be placed on any surface of the user input accessory.

6 illustrates another connection mechanism for maintaining the user input accessory 602 on the touch sensitive display 601 of the electronic device 600. Some embodiments of the invention, such as shown in FIG. 6, use other mechanical features, devices, connectors, or connectors configured to attach the user input accessory 602 to the body of the electronic device 600.

In FIG. 6, the outer and bottom surfaces of the user input accessory 602 are electrostatic charge, suction, magnetic attraction, gravity to maintain the user input accessory itself on the touch sensitive display 601. Or a flexible material such as silicone, polyethylene terephthalate (PET) film, configured to use a combination thereof. As such, the mechanical coupling is to the touch sensitive display 601 itself, not to the body of the electronic device 600. The configuration of FIG. 6 provides the advantage that the user input accessory is “device housing independent” in that the user input accessory 602 does not rely on any surface other than the exterior of the touch sensitive surface for attachment. Note that the user input accessory 602 can be secured in place by another method, such as magnetically or by gravity, with or without a mechanical locator for aligning the user input accessory 602.

7-9 illustrate an electronic device 700 operating in various modes. 7 illustrates an electronic device 700 with no user input accessory attached and operating in a default mode. 8 and 9 illustrate that the adaptation module 107 reconfigures the electronic device 700 to display the data in a different way in response to a user input accessory 802 that is identified and sensed as attached at a particular location and in a particular configuration. Two adaptive modes are illustrated. As shown in these figures, in one embodiment of the present invention, the user input accessory 802 is configured to be selectively disposed at a plurality of arbitrary positions on the touch sensitive display 701. Thus, the adaptation module of the electronic device is in one embodiment configured to adjust the display of information on the touch sensitive display 701 according to the attached position of the user input accessory 802.

In FIG. 7, the electronic device operates in the default mode because no user input accessory is attached to the touch sensitive display 701. Note that the "default" mode can take various forms and is intended to refer to the mode in which the user input accessory is not attached. In the example embodiment of FIG. 7, the default mode has three applications 771, 772, 773 running. Such applications 771, 772, 773 may be applications selected and launched by a user. Alternatively, they can always be running applications. In addition, they may be user-preferred applications launched when a particular user activates the electronic device 700 such as a personal identification number or access code.

In FIG. 7, applications 771, 772, and 773 display data in corresponding windows, respectively. The windows corresponding to the first application 771 and the second application 772 overlap slightly, while the windows corresponding to the third application 773 are disposed below the overlapping applications 771 and 772. While the particular orientation is not important, in the example embodiment of FIG. 7 the applications are arranged to substantially fill the area of the touch sensitive display 701 so that each can be viewed simultaneously by the user.

In FIG. 8, the user input accessory 802 configured as a QWERTY keyboard in this embodiment is attached to the touch sensitive display 701 near the bottom edge as shown. As such, the area of the touch sensitive display 701 under the user input accessory is desirable for information display, except in scenarios in which the user input accessory 802 is configured to be transparent, translucent, or fully transparent. Is made smaller than As such, the adaptation module is reconfigured such that the data representation along the touch sensitive display 701 is adjacent to the user input accessory 802-and in this case on top (in the positive y-axis direction). In the example embodiment of FIG. 8, this is accomplished by resizing and positioning data associated with three active applications 771, 772, 773.

In FIG. 9, in an exemplary embodiment the user input accessory 802 is attached to the touch sensitive display 701 along the interior area 990 of the touch sensitive display 701. The interior area 990 is " inside " because a portion of the touch sensitive display 701 is visible on at least the first side 991 of the touch sensitive display 701 and the second side 992 of the touch sensitive display 701. to be. Note that some of the touch sensitive display 701 may be equally visible on the four sides of the touch sensitive display 701, as in the case where the user input accessory 802 is rotated 90 degrees. Thus, as used herein, “inside” means that a portion of the touch sensitive display 701 is visible along a plurality of sides of the user input accessory 802.

To optimize the visibility of the data displayed on the touch sensitive display 701, the adaptation module extends touch sensing extended from the second side 992 of the user input accessory 802 to the edge of the screen (as shown). Touch sensitive display 701 extending from the first side 991 of user input accessory 802 to the edge of the screen, as shown differently from non-duplicate second portion 994 of display 701. Reconstruct the first portion 993 of. In this example embodiment, data from the first application 771, the second application 772, and the third application 773 is scaled and positioned along the second portion 994 of the touch sensitive display 701. Adjusted. Additionally, according to user preference variables stored in the memory of the electronic device 700, the fourth application 995 and the fifth application 996 display their data in the first portion 993 of the touch sensitive display 701. Undertaken. Initiation of additional applications may depend on the identification and location of the user input accessory 802 when attached. For example, the fourth application 995 may be launched by attaching a QWERTY keyboard at a location that yields at least the minimum sized partition portion 993 above the user input accessory 802 (positive y direction). Application (in the new text message generation mode).

The embodiment of FIG. 9 provides a glimpse of the flexibility and mode control provided by an embodiment of the present invention. In this example embodiment, the user may have a stored preference profile indicating that the fourth application 995 and the fifth application 996 should be launched when the user input accessory 802 is attached within this particular internal area 990. Has If this is not the case, the adaptation module may display data from the first application 771 and the second application 772 on the first portion 993 of the touch sensitive display 701, while the third application 773 The data from) may be reconfigured to the electronic device 700 such as as indicated in the second portion 994. Other combinations or displays of data are additionally possible. In addition, the user can store the display preferences in a user profile in memory that is operable with and accessible by the adaptation module.

10 shows a schematic block diagram 1000 of one embodiment of internal circuitry, software modules, firmware modules and other components in an electronic device in accordance with an embodiment of the present invention. These exemplary internal circuits relate to general electronic devices, but any number of specifics, including portable telephones, smartphones, personal digital assistants, palm-top computing platforms, remote controllers, and other devices. Note that it can be easily adapted to the device.

The controller 104 is configured to operate various functions of the electronic device. The controller 104 can also be configured to execute a software or firmware application stored in the memory 105. Controller 104 may execute such software or firmware to provide device functionality.

Combined with and operable with the controller is a touch sensitive display 101. In this exemplary embodiment, the touch sensitive display 101 operable with the display driver 1001 is shown having a plurality of layers including a touch sensitive layer group and a display layer group. Although this is one embodiment of the touch sensitive display 101, it will be apparent to those skilled in the art having the benefit of the present disclosure that embodiments of the present invention are not so limited. Many other touch sensitive surfaces can be substituted without departing from the spirit and scope of the invention.

In the example embodiment of FIG. 10, five layers are shown. Starting from the top, the cover layer 1002, which may be made from glass or thin sheet, acts as a unitary fascia member for the electronic device. A "cover" is a sheath or housing that may or may not be removable. Suitable materials for preparing the cover layer include transparent or translucent plastic films, glass, plastic or tempered glass. The tempered glass may comprise glass reinforced by a process such as chemical or thermal treatment. Cover layer 1002 may also include an ultraviolet barrier. Such a barrier is useful both for improving the visibility of the display layer 1004 and for protecting internal components of the electronic device.

Under the cover layer 1002 is an electromagnetic field sensor 1003. An electromagnetic field sensor 1003, which can be built by depositing small capacitive plate electrodes on a transparent substrate, detects the presence of an object, such as a user's finger, near the touch sensitive display 101 or touching the touch sensitive display 101. It is configured to. The control circuitry operable with or disposed within the controller 104 is configured to detect a change in capacitance of a particular plate combination on the electromagnetic field sensor 1003. The electromagnetic sensor 1003 may be used in a general mode for detecting a general proximity position of the object with respect to the touch sensitive display 101, for example. The electromagnetic field sensor 1003 can also be used in a special mode in which a specific pair of capacitor plates can be detected to detect the exact position of the object along the length and width of the touch sensitive display. It is noted that the electromagnetic field sensor 1003 is a specific implementation of an electromagnetic field sensor, and another kind of electromagnetic field sensor such as a magnetic field sensor may replace the capacitive field sensor.

The time signature signal 110 transmitted to the electromagnetic field sensor 1003 depends on the size, shape, arrangement, arrangement, materials, and combinations thereof of the conductive pads present on the user input accessory 102. The capacitive sensor in the electromagnetic field sensor 1003 sets the electric field flowing therebetween. Proximity conductive pads can absorb or redirect an electric field, altering the amount of charge collected on any one sensor. By attaching the user input accessory 102 with the characteristic conductive pad, an initial time signature signal 110 is induced at time t = 0. Additional passive components, including resistive or inductive elements, may be combined with conductive pads to provide time signature attenuation as well. In the example shown, the field 1012 magnitude changes at time t = 1 and the field 1014 scales at time t = n. In this example, three time units are shown; Other embodiments may have more or less complex time signature signals.

Below the electromagnetic field sensor 1003 is the display layer 1004. Although the electromagnetic field sensor 1003 may be adjacent to the display layer 1004, it is noted that in one embodiment, there is a gap disposed between the electromagnetic field sensor 1003 and the display layer 1004. In another embodiment, a bonding layer (not shown) is disposed between the electromagnetic field sensor 1003 and the display layer 1004.

In one embodiment, display layer 1004 includes a high resolution display. The electroluminescent layer or light emitting diode (LED) backlight layer 1005 may be disposed below the display layer 1004 and may be configured to project light through the display layer 1004 to illuminate the backlight on the display layer 1004. have. The display layer may adaptively display text, graphics, user operational targets, data, and controls along the touch sensitive display 101.

Heptic layer 1006 may be disposed below electroluminescent layer 1005. The heptic layer 1006 may be configured to provide pseudo-tactile feedback in response to user action of a virtual button or control displayed on the touch sensitive display 101. That is, when the user input accessory 102, which may have an actual pop-style button disposed on the user input accessory 102, is not coupled to the touch sensitive display, the heptic layer 1006 The popple may be stimulated by delivering a tactile response to the body of the electronic device.

In one embodiment, the heptic layer 1006 includes a transducer configured to provide sensory feedback when the user operates the virtual key. In one embodiment, the transducer is a piezoelectric transducer configured to apply a mechanical “pop” powerful enough for a user to detect to the body of the device. Thus, the tactile feedback layer provides sensory feedback to the user, allowing the smooth, substantially planar touch sensitive display 101 to respond like a conventional keypad.

For the module, both the identification module 106 and the adaptation module 107 are shown in FIG. 10. Their operation has been substantially described above. The identification module 106 is configured to detect and identify the user input accessory 102 from the time signature signal 110, which is shown attenuated with time in FIG. 10.

The adaptation module 107 is configured to reconfigure the operating characteristics of the electronic device in response to the user input accessory 102 attached and identified. As shown in FIG. 10, the adaptation module 107 may include a hardware adapter 1008 and a display configuration adapter 1009. The hardware adapter 1008 may, for example, compensate the gain of the sensor in the touch sensitive display 101 to compensate for the residual field 1014 of the time signature signal and to properly receive the user actuation signal from the user input accessory 102. gain) and the threshold may be recalibrated. Display configuration adapter 1009 may be configured to dimension, resize, position, and rearrange information displayed on touch-sensitive display 101. In addition, as discussed above, display configuration adapter 1009 may be configured to undertake application 1090 or to enable other desirable operating characteristics.

In one embodiment, the adaptation module 107 is configured to operate with the user preference profile 1007 stored in the memory 105 of the electronic device. User preference profile 1007 may take various forms, some of which will be described herein.

In one embodiment, the user preference profile 1007 will include an operating characteristic corresponding to the preferred mode of operation of the electronic device. This preferred mode of operation may be enabled by the adaptation module 107 when the user input accessory is attached to the touch sensitive display 101. Preferred modes of operation may include: a predefined input area along the touch-sensitive display, corresponding to the characteristic configuration of the conductive pad associated with the identified user input accessory 102; A preferred tactile response delivered by the electronic device upon user actuation of one or more keys disposed along the user input accessory 102; A preference related to an undertaken application or data presentation as described above; And keypad sensitivity corresponding to user operation of a key on user input accessory 102. User preference profile 1007 may also include parameters used with hardware adapter 1008, such as one or more amplification levels for signals received from the plurality of conductive pads or one or more threshold levels of signals received from conductive pads. Can be. Other parameters will be apparent to those skilled in the art having the benefit of this disclosure.

FIG. 11 illustrates a method 1100 that may be executed by using one or more controllers in an electronic device that make up the electronic device in response to a user input accessory attached to a touch sensitive surface in accordance with an embodiment of the present invention.

In step 1101, the electronic device is started by operating in the default input mode as shown in FIG. The touch sensitive surface of the electronic device is configured for default operation at step 1102. Configuration step 1102 is a default input area, such as the entire touch sensitive surface is configured to accept touch input or only a portion of the touch sensitive surface is configured to accept touch input (eg, when the device is in "locked" mode). And may comprise 1103. The system configuration for default operation may also include setting a gain for the touch sensitive surface in step 1104, and setting a threshold for determining whether touch interaction occurs in step 1105. For example, this level depends on whether the default mode is to receive touch input from the user's finger or touch input from the stylus, whether the default mode supports single-touch or multi-touch, and other variables. Can be.

Decision step 1106 determines whether valid input for the default operating mode occurs. For example, if the default operation involves a user touching a single finger on the touch sensitive display, a valid default input may be a tap, swipe or a series of single-finger (or multi-finger) on the touch sensitive surface. Gesture). Step 1190 Report the event to the controller so that an appropriate response is made within the step 1190 device, and the method 1100 returns to step 1106 for further input. Continuing this example where the default operation expects the user to touch the touch sensitive surface with a single finger, the controller can read the attachment of a user input accessory with multiple conductive pads as a non-standard default-mode input. . Decision step 1107 evaluates the non-standard input. If the non-standard input is a result of a user mistake (eg touching two fingers instead of one finger, a paperclip accidentally touching the touch sensitive surface, etc.), the method 1100 returns to step 1106. If a non-standard event is read by attaching the user input accessory to the touch sensitive surface, decision step 1107 is executed to identify the user input accessory (1108).

In step 1108, identification module 106 (FIGS. 1 and 10) identifies the user input accessory from the time signature signal generated by the interaction of the conductive pad on the user input accessory with the electromagnetic field of the touch sensitive surface. In addition, the identification module may be configured to determine a position of placement of the user input accessory along the touch sensitive surface (1191). Upon identification and optionally positioning of the user input accessory, the adaptation module changes various settings within the electronic device, including an input detection mode and a display mode of the electronic device.

Specifically, in step 1109, the adaptation module activates the new mode of operation, shown herein as the new input mode of operation and the new output mode of operation. Two exemplary output modes of operation are shown in FIGS. 8 and 9 above.

At step 1110, the adaptation module may configure the touch sensitive surface for different input detection methods. For example, when a user input accessory is coupled to a touch sensitive surface, if the default mode of operation includes detecting a user's finger touching the touch sensitive surface, the new input compartment method is located below the user input accessory. It may be to detect a signal coming from the disposed conductive pads. Part of step 1110 may include compensating for residual electromagnetic disturbance caused by the time signature signal. After compensation, when the user presses the key of the accessory and the input signal is multiplexed through the conductive pad, the input signal will be properly received.

In step 1111, the adaptation module may configure system behavior for the input region. For example, the first input region can be under the accessory and can be in contact with the conductive pad, while the second input region can be the remainder of the touch sensitive surface. Thus, the first input region can expect the input signal only at a predetermined position (i.e., below the conductive pad) while the second input region expects a single-touch finger input. In addition, a third input region that does not accommodate any input may be implemented (e.g., the electromagnetic field is inactive in the third region).

In step 1112, the adaptation module may set the system gain to receive a signal from the user input accessory in the first input area and the system gain to receive a signal from the user's finger in the second input area. In step 1113, the adaptation module may set a threshold value to determine when a valid signal is received from the user input accessory in the first area and from the user's finger in the second area. In some implementations, the electromagnetic field may be active in the third region, but the threshold value is set too high so that the touch interaction will not trigger the touch event.

For the display (electronic device output) element, in step 1114, the adaptation module may construct a new viewing area as described above with respect to FIGS. 8 and 9. Specifically, at this step 1114, the adaptation module displays the information from the first application of the electronic device on the first portion of the touch sensitive display adjacent to the first edge of the user input device, for example. Information from the second application of the electronic device may be displayed on the second portion of the touch-sensitive display adjacent to the two edges. This configuration is shown in FIG. 9 above. As described above, the display area may vary depending on the size, shape, and placement of the user input accessory.

In step 1115, backlight illumination may be configured. As mentioned above, the backlight may be an electroluminescent layer, LED-backlight or other similar backlight source. As shown below, in some embodiments, the user input accessory may be configured to have one or more light pipes or light conduits for passing light from the backlight layer through a portion of the user input accessory. The physical configuration of the user input accessory may determine what kind of backlight is most appropriate for a particular application. Also, as described above, in some embodiments, the user input accessory may be disposed along the touch sensitive surface rather than the top of the touch sensitive display. Thus, some touch sensitive surfaces may not include backlight illumination. In this case, steps 1114 and 1115 can be omitted. If backlight illumination is included, the backlight illumination may be appropriately configured and activated at step 1115.

Each of the steps 1110, 1111, 1112, 1113, 1114, and 1115 may be based on one or more types of user input accessories and / or one or more user preferences corresponding to the placement positions of the user input accessories. For example, placement of certain types of user input accessories at specific locations on the touch sensitive surface automatically reconfigures new input and output areas, launches specific software applications, and even allows predetermined gain and threshold values to be acquired. Settings (for example, from finger-touch input to stylus input).

Decision step 1192 determines whether a valid input for the accessory mode of operation has occurred. Note that, depending on the configuration, different kinds of inputs (eg conductive pads, touches, stylus) may be valid (or invalid) for different input areas. If a valid input is detected, step 1193 reports the interaction event to the controller, which causes an appropriate response to occur within the electronic device, and step 1110 returns to step 1192 for further input.

The non-standard input causes the flow to be directed to decision step 1117, which clearly determines if the input reflected removal of the user input accessory. Since the system was first configured in step 1110 to offset any residual electromagnetic interference caused by the time signature signal, removal of the accessory will necessarily cause the "reverse signature signal" to be received by the controller and Rotating or sliding (not completely removed) will also produce a variant of the reverse signature signal. If the user input accessory is determined to be removed, the flow returns to step 1101 and the controller resets the electronic device to the default input (and output) mode.

If the user input accessory is not removed, it is possible to convert to a new position across the touch sensitive surface. In this case, the method 1100 returns to step 1191 to reevaluate the location of the user input accessory. Thus, if the controller determines that the user input accessory is only removed and not removed, the flow returns to step 1191 to determine the new placement of the user input accessory and to reconfigure the input and output parameters. Finally, if the controller determines that the user input accessory is not to move, the controller assumes that an error has occurred and the flow returns to step 1192 to wait for further user input.

In FIG. 12, the figures show some possible configurations of the user input accessory that may be created in accordance with an embodiment of the invention. Each variation of FIG. 12 includes a user input accessory having various user operational components thereon. It will be apparent to those skilled in the art having the benefit of the present disclosure that the embodiment of FIG. 12 is merely exemplary and that other embodiments may be generated without departing from the spirit and scope of the invention.

Example 1201 is configured as a QWERTY keypad. A complete QWERTY keypad can be implemented. Alternatively, variations or subsets of keys from the QWERTY keypad can be implemented to save space. Alternatively, as described above, multiple languages may be supported by a dedicated user input accessory.

Example 1202 is a large numeric keypad in which each key is a large number for easy visibility. In the example embodiment of FIG. 12, the large numeric keypad is of a telephone dial keypad. Other variations of the large numeric keypad can also be generated including a 4x3 matrix structure and a standard bell keypad with * and # keys.

Example 1203 is a braille keypad for a visually impaired person. The braille keypad can be configured as a QWERTY keypad, telephone keypad or other variant.

Example 1204 is an application specific keypad. This includes features such as the navigation wheel 1205, page backward / forward keys 1206 and 1207, enter key 1291 and D-pad 1290.

Embodiment 1207 is a game controller accessory consisting of two pieces 1292 and 1293. Each piece may be attached to a touch sensitive surface (or two different touch sensitive surfaces) at the distal end of the electronic device to simulate a typical game controller. As shown, one piece 1292 includes a button 1294 and another piece 1293 includes a D-pad 1295. If pieces 1292 and 1293 are configured as sleeves (open on both left and right edges), then right-handed configuration (as shown) or left-handed configuration (piece 1293 is left and piece 1292 is right) Either of which allows the user to attach the pieces 1292 and 1293 to the electronic device. In this embodiment, the electronic device can recognize how the piece is attached and the user preference can automatically select the appropriate configuration (eg right handed or left handed).

Embodiment 1208 is a multifunction keypad illustrating various some of the controls that may be included with a user input accessory configured in accordance with an embodiment of the present invention. This control device includes a slider 1211, a rocker 1209 and a joystick 1210.

FIG. 13 illustrates one embodiment for an electronic device 1300 having a pair of user input attachments 1302 with mechanical coupling that acts to prevent accidental loss of the user input accessory 1302 when separated from the touch surface. do. Specifically, in FIG. 13, string 1131 functions as a mechanical bond. The strap 1311, which may be made of an elastic elastic-type material, maintains the user input accessory 1302 physically coupled to the electronic device 1300 when detached from the touch sensitive display 1301. To ensure that In one embodiment, the strap 1311 is only a mechanical device and does not include an electrical connection between the electronic device and the user input accessory 1302. Note that the strap 1311 allows the freedom to place the user input accessory in various locations relative to the touch sensitive display 1301 with little limitation.

14-17, the figure shows another mechanical coupling that functions to prevent accidental loss of the user input accessory 1402 when separated from the touch sensitive surface, which in this embodiment is the touch sensitive display 1401. . The embodiments of FIGS. 14-16 allow for selective detachment from the touch sensitive surface while allowing the user input accessory 1402 to be permanently attached to the housing of the electronic device. This particular embodiment supports attachment at various locations along the touch sensitive surface, but the variability is limited to the y-axis. Attachment is optional. In some implementations shown above, the user input accessory 1402 can also be completely separate from the electronic device.

As shown in FIG. 16, the body of the electronic device 1600 is fitted using a groove 1601 and one or more attachment detents 1602. In this embodiment, the grooves and detents are mirrored on the opposite housing (not shown) of the electronic device. User input accessory 1402 includes complementary mechanical features for fitting into groove 1601 and attachment detent 1602. For example, attachment detent 1602 may fit into a springed post nested within one or more attachment detents 1602. Alternatively, magnetic coupling can replace attachment detent 1602 using complementary polarized magnetic coupling disposed on user input accessory 1402.

The groove 1601 includes several contours that, in this exemplary embodiment, allow the user input accessory 1402 to slide and rotate relative to the electronic device 1600. A standby catch 1603 holds the user input accessory 1402 when the accessory is not coupled to the touch sensitive display 1401. The transition closure curve 1604 provides a smooth transition surface when the user input accessory 1402 initially moves toward engagement with the touch sensitive display 1401.

The elongated groove portion 1605 allows the user input accessory 1402 to slide longitudinally (along the y-axis) relative to the electronic device 1600. Rotation recesses 1606 allow the user input accessory 1402 to rotate about the distal end of the electronic device 1600. The second spare clasp 1607 also helps to maintain the user input accessory 1402 when not coupled to the touch sensitive display.

To illustrate this particular mechanical coupling movement, first look at FIG. 14, which illustrates a user input accessory 1402 coupled to a touch sensitive display 1401. To detach the user input accessory 1402 from the touch sensitive surface, the user first lifts the user input accessory in the positive z-axis direction 1403 to separate the conductive pad from the touch sensitive display 1401. 15, the user slides the user input accessory 1402 in the transverse direction, which is the negative y-axis direction 1501, towards the distal end 1502 of the electronic device.

In FIG. 16, the user rotates the user input accessory 1402 about the end 1502 of the electronic device 1600 in the 1608 direction. In FIG. 17, the user input accessory 1402 can slide in the positive y-axis direction 1701. After a positive mechanical feature (not shown) protruding from the user input accessory 1402 has settled in the preliminary clasp 1603, the user input accessory 1402 is then backed 1702 of the electronic device 1600. ), The touch sensitive display 1401 is fully accessible to the user.

18-19, these figures show one embodiment of a mode change configuration for an electronic device 1800 operable with a user input accessory 1802 in accordance with an embodiment of the present invention. As noted above, the electronic device 1800 may be configured to change the mode of operation when the user input accessory 1802 is attached, sometimes in accordance with user preferences or profiles stored in memory. 18-19 illustrate mode changes corresponding to the location of the user input accessory 1802. Specifically, as shown in these figures, the first mode of operation may be enabled when the user input accessory 1802 is coupled to the touch sensitive display 1801. The second mode of operation may be enabled when the user input accessory 1802 is separated from the touch sensitive display 1801.

18-19, the user input accessory 1802 can be configured to be attachable along either of the touch sensitive display 1801 or a portion of the electronic device 1800 other than the touch sensitive display 1801. Specifically, in this example embodiment, the user input accessory 1802 is coupled to the touch sensitive display 1801 as shown in FIG. 18, or alternatively the electronic device 1800 of FIG. 19 is shown in FIG. 19. It can be coupled to the back. Such a configuration can be achieved with a mechanical coupling such as shown in FIGS. 1 or 14-17.

As shown in FIG. 18, when the user input accessory 1802 is coupled to the touch sensitive display 1801, the electronic device 1800 is configured to be operable in a first mode. When the user input accessory 1802 is coupled to the back of the device as shown in FIG. 19, the electronic device 1800 is configured to be operable in a second mode. By way of example, where the user input accessory 1802 is configured as a QWERTY keypad, the first mode may be an email application in which the QWERTY keypad is suitable for entering text in an email. The second mode that is activated when the user input accessory 1802 is detached may be a photo application configured to display a photo image. This mode would be suitable for using the full touch sensitive display 1801.

20-28 illustrate various mechanical configurations and structures for a user input accessory constructed in accordance with an embodiment of the invention. It will be apparent to those skilled in the art having the benefit of the present disclosure that the embodiments of FIGS. 20-28 are for illustrative purposes only and that other embodiments may be produced without departing from the spirit and scope of the invention. Each key shown in FIGS. 20-28 is associated with, but not required to, an individual conductive pad. In various embodiments, fewer conductive pads may be used than keys, in which case the keys are multiplexed onto one or more conductive pads (see FIGS. 31-32 for an example of such an embodiment).

Starting with FIG. 20, the user input accessory 2002 is coupled to the cover layer 1002 of the electronic device. The cover layer 1002 is disposed on the electromagnetic field sensor 1003. Cover layer 1002 may be made of glass, thermoplastic material, or other similar material. The cover layer 1002 is disposed on the electromagnetic field sensor 1003.

The user input accessory 2002 is configured in a flexible top layer 2020 with an integrated geometrical key 2021 that may be similar to a dome or other geometry. Each key 2021 includes a mechanical support 2022 connected to an electrically conductive popple dome 2023 that spans a conductive pad 2024 implemented using a carbon elastomer pad. When a user presses a key 2021 of this type, the pubple dome 2023 collapses and is connected to a conductive element 2025 disposed on a printed circuit board 2026 having conductive pads 2024. . This alters the electric field sensed by the electromagnetic field sensor of the electromagnetic field sensor 1003 to provide an operational signal to the electronic device.

21 illustrates another mechanical configuration. FIG. 21 is similar to FIG. 20 in function. Specifically, the user input accessory 2102 is coupled to the cover layer 1002 of the electronic device. The cover layer 1002 is disposed on the electromagnetic field sensor 1003.

In FIG. 20, user input accessory 2102 is configured within flexible top layer 2020 with integrated domed key 2021. Each key 2021 includes a mechanical support 2022 connected to a conductive pubple dome 2023 that spans a conductive pad 2024 implemented as a carbon elastomer pad. In FIG. 21, an insulator film 2101 supports the conductive element 2025, rather than using a printed circuit board as in FIG. 20. When the user presses the domed key 2021, the pubple dome 2023 connects the conductive element 2025 with the conductive pad 2024. This alters the electric field sensed by the electromagnetic field sensor 1003 to provide an actuation signal to the electronic device.

22 illustrates another mechanical configuration. FIG. 22 is essentially an illustration except that the conductive pad of FIG. 21 is implemented with a conductive layer 2201 such as conductive traces or similar conductive material disposed on the back side of the printed circuit board 2026. Same as 21.

As in FIG. 20, user input accessory 2202 is configured within flexible top layer 2020 with integrated domed key 2021. Each key 2021 includes a mechanical support 2022 connected to a conductive pubple dome 2023 spanning a conductive layer 2201.

The user actuates the key by pressing the domed key 2021 to cause the pubple dome 2023 to connect the conductive element 2025 with the conductive layer 2201. This alters the electric field sensed by the electromagnetic field sensor 1003 to provide an actuation signal to the electronic device.

23 shows another mechanical configuration. FIG. 23 is identical to FIG. 22 except for the fact that the printed circuit board 2026 of FIG. 22 has been replaced with the flexible circuit board 2326. Although printed circuit board 2026 has been replaced with flexible circuit board 2326 for purposes of illustration, the same replacement with other conductive trace substrates including dot matrix circuit boards, P dot circuit boards, indium-tin oxides on the substrate, and the like. It can be noted that.

In Fig. 24, this figure shows another mechanical configuration. FIG. 24 is the same as FIG. 22 except for the fact that a plastic overmold layer 2401 is disposed below the user input accessory 2402. The plastic overmold layer 2401 can help facilitate static coupling to the cover layer 1002 of the touch sensitive display and can help to ensure that individual conductive pads are not damaged.

25 shows another mechanical configuration. FIG. 25 is the same as FIG. 24 except that the conductive pad 2024 occupies a space along the mechanical overmold layer 2501 and is integrated with the mechanical overmold layer 2501. This configuration facilitates the enhancement of signal transmission to the electromagnetic field sensor 1003 while still providing adequate electrostatic coupling to the cover layer 1002.

26 illustrates another mechanical configuration. FIG. 26 is the same as FIG. 25 except that the conductive pad 2024 is replaced with a void 2601 that allows electrical contact to be exposed on the electromagnetic field sensor 1003. Thus, electrical contact 2201 becomes a conductive pad that interferes with the electromagnetic field of the touch sensitive surface and provides a signal to the electronic device.

FIG. 27 illustrates a mechanical configuration designed to transmit light from an electroluminescent layer 1005 disposed below an electromagnetic field sensor 1003 through each key. In FIG. 27, user input accessory 2702 is configured to have one or more light carrying elements configured to allow light from electroluminescent layer 1005 to pass there through.

The electroluminescent layer 1005 may include a layer of backlight material sandwiched between transparent substrates including transparent electrodes on top and bottom. The electrodes that can be segmented and patterned can be operated separately by the working electrode and the ground electrode. The working electrode may be made of indium tin oxide and the ground electrode may comprise a layer of solid conductive ink printed on the bottom surface of the electroluminescent material. Alternatively, the ground electrode can also be patterned. If the electroluminescent layer 1005 individually includes an operating element, the element may be selectively disabled under the user input accessory 2702 to conserve power.

The electroluminescent layer 1005 may include a transfector layer. It is possible for the display to be operated in a transflective mode by a transflective plate layer, which may be a translucent material configured to reflect and pass light. A color layer may optionally be included on top of the electroluminescent layer 1005 having one or more colors. In addition, a color layer, which may be a transflective plate having both transmissive and reflective properties, may be used for the colored light emitted from the electroluminescent layer 1005. The color layer may alternatively be made of a color filter having only transmissive properties.

The mechanical configuration of FIG. 27 is similar to the mechanical configuration of FIG. 24 except that a flexible light pipe 2701 and a light diffuser 2703 are included in each key. The flexible light pipe 2701 is flexible so as to "collapse" when the user operates the key 2704. Flexible light pipe 2701 passes the light from electroluminescent layer 1005 through each key to provide a backlight effect. An optional diffuser 2703 allows the backlight effect to be visible at a wider angle than would otherwise occur using only a light pipe.

28 illustrates another mechanical configuration. FIG. 28 is similar to FIG. 27 except that the flexible top layer 2820 is configured as a light guide. Thus, in addition to the backlight effect provided by the flexible light pipe 2701 and the diffuser 2703, the regions for each key are also properly illuminated by the flexible top layer 2820. This configuration facilitates the improvement of visibility in low light conditions.

The embodiments of FIGS. 27 and 28 are not the only method for transferring light from an electronic device through a user input accessory. In other embodiments, the electroluminescent element may be illuminated at a location other than directly below the user input accessory. 31 and 32, these two examples are shown here.

In FIG. 31, the electronic device 3101 includes a light emitting source 3109 therein. As described above, the light emitting source 3109 is disposed below the touch sensitive display 3103 so that light is projected through the touch sensitive display 3103 when active.

In the embodiment of FIG. 31, the user input accessory 3105 is coupled to the bottom of the electronic device 3101 with an overlap 3105 passing through the top of the touch sensitive display 3103. The overlap 3105 provides sufficient coverage for transmitting signals to the touch sensitive display 3103 for conductive pads (not shown) below.

In order to transmit light from the light emitting source 3109 through the key 3106 of the user input accessory 3102, the light pipe layer 3104 in the electronic device 3101 is lighted down the length of the light pipe layer 3104. To pass. In one embodiment, this occurs when the user input accessory 3102 is coupled to and in use with the electronic device 3101. Light is then transmitted to the second light pipe layer 3107 in the user input accessory 3102 via the clear or transparent mechanical layer 3108 and the key 3106.

In FIG. 32, a second light pipe layer 3207 has a user input accessory 3202 to transmit light from the light emitting device 3209 in the electronic device 3201 through the key 3206 of the user input accessory 3202. The operation is similar, except for the fact that it passes around the end of a). Note that the conductive pads of the user input accessories 3102, 3202 will be disposed on the bottom of the overlap 3105 to contact the touch sensitive display 3103. The keys 3106 and 3206 can also be multiplied to conductive pads that support more keys than the number of conductive pads.

In this regard, embodiments of the present invention are described as unique, that is, the electronic device operates as a user input accessory that operates various applications and, optionally, can be selectively coupled to a touch sensitive surface. However, it will be apparent to one skilled in the art having the benefit of this disclosure that the embodiments of the invention are not so limited. For example, embodiments of the present invention may also be configured to work with other devices. Figure 29 illustrates one such embodiment.

In FIG. 29, the electronic device 2900 is configured as an interface between a conventional input device 2900 shown as a keyboard in this figure and an auxiliary device 2904 shown as a monitor in this figure. As such, user input accessory 2902 acts as a user control interface operable with conventional input device 2900. Electronic device 2900 then passes control signals from conventional input device 2900 to auxiliary device 2904.

In this configuration, user input accessory 2902 is configured as an adapter for conventional input device 2900. User input accessory 2902 is attached to touch sensitive surface 2901 of electronic device 2900. Thus, user activity of a typical input device 2900 is communicated to a user input accessory 2902 via a code. The user input accessory 2902 then delivers a signal corresponding to the touch sensitive surface 2901. The electronic device 2900 then delivers the appropriate signal to the secondary device 2904.

Variations to this configuration can also be created. For example, one simple variant is to replace another conventional input device 2900 with the keyboard of FIG. Game controllers, multimedia controllers, industrial devices intended to be used in a variety of environmental conditions, accessories for data collection and transmission, remote optical viewing devices, remote controls, and the like may be substituted for them. In addition, more than one conventional input device may be coupled to the user input accessory.

It is also noted that in the example embodiment of FIG. 29, intelligence is not required for auxiliary device 2904 or conventional input device 2900. The intelligence of the electronic device 2900 can be used to operate an application that receives input from a conventional input device and delivers output to an auxiliary device. In addition, with the embodiment of FIG. 29, it is possible to use a preferred conventional input device while maintaining a standardized interface through electronic device 2900. Note that the touch sensitive surface 2901 may be disposed on various sides of the electronic device 2900. For example, the touch sensitive surface 2901 can be disposed on the front or side of the electronic device. In addition, a docking station 2907 may be provided for the electronic device 2900, acting as an interface between the conventional input device 2900 and the secondary device 2904.

30 provides a graphical depiction of how the conductive pad 330 interfaces with the electromagnetic sensor 3004 of the touch sensitive surface 3001 to communicate the time signature signal 110 to the electronic device 100. When the conductive pad 330 is closed enough to disturb the electric field generated by the electromagnetic field sensor 3004, it changes over time and can be received by the electromagnetic field sensor 3004, and the electronic device 100 Generate a signal that can be read as a touch event by a processor in the processor. This touch event is represented electrically as time signature signal 110 and has an associated amplitude and shape that changes over time. As mentioned above, the signal can be analyzed to determine its "signature".

In one embodiment, mathematically looking at the time signature signal 110, the processor analyzes all or part of the signal profile to determine the signal surface area (on the xy plane), signal form (e.g., corresponding to the time signature signal 110). For example, the number, location and shape of each conductive pad), signal aspect ratio (on the xy plane), or other geometric (on the xy plane) parameter can be determined. As mentioned above, the signature may be used to identify the type of user input accessory 102 coupled to the touch sensitive display 3001.

Specifically, the time signature signal 110 may be a series of signal magnitudes spread along the surface of the display. This signal magnitude may be configured to be attenuated with the use of inductor-capacitor circuitry disposed within the electronic device. In one embodiment, the identification module analyzes the time signature signal to identify the user input accessory by determining the time-based attenuation of the peak as well as the area associated with the signal's location, shape, and scale.

The resulting temporal characteristics can then be compared with a predefined model, tolerance or threshold limit to uniquely identify the type of user input accessory. The location of the time signature signal detected across the touch sensitive display may be a feature used to identify the attachment location and orientation of the user input accessory 102.

After detecting the temporal characteristic, a controller in the electronic device may need to correct the corresponding signal from the detector in the touch sensitive surface. This cancels the residual signal so that subsequent field signals can be properly read as the operation of a key or control on the user input accessory.

After removing the user input accessory, the inverted characteristic time signal can be detected by the controller. This reverse signal indicates that the user input accessory is removed from the electronic device. Upon removal, the controller may recalibrate the sensor to prepare for subsequent detection of user input accessory attachment or for operation of the default input mode (without user input accessory attached).

33, illustrated here is another embodiment of an electronic device 3301 and a user input accessory 3302 in accordance with an embodiment of the present invention. In FIG. 33, the display is divided into a first area 3303 where information is displayed dynamically and a second area 3304 where dynamic information is not displayed. By way of example, the second area 3304 may be a display portion that does not change depending on the application and on which several dedicated user operational targets are displayed. In one embodiment, the user input accessory 3302 is placed in the non-dynamic second area 3304 of the display such that the dynamic first area 3303 does not need to be reconfigured when the user input accessory 3302 is in use. It can be configured to be combined.

Similarly, some electronic devices will have a touch sensitive surface disposed at a location other than along the display. 34, what is shown in this figure is one such embodiment. In FIG. 34, the display 3403 may be a touch sensitive display. Alternatively, it may be a dedicated display. It may also be only a capacitive sensor, or an electromagnetic sensor, such as a capacitive layer or a printed circuit board in a flexible circuit board. In this configuration, no display or lens is required that allows for fabrication post-ponability.

A corresponding touch sensitive surface 3404 is provided to receive touch input from the user. Although shown on top of an electronic device 3401, embodiments of the present invention are not so limited. The touch sensitive surface 3404 may be identical on the side of the electronic device 3401 or on the opposite back side of the display 3403. In one embodiment, as shown in FIG. 34, the user input accessory 3402 is attached to the touch sensitive surface 3404 so that the display 3403 does not need to be reconfigured when the user input accessory 3402 is in use. It can be configured to be combined.

In FIG. 35, illustrated in this figure is another mechanical embodiment of the user input accessory 3502. In the embodiment of FIG. 35, user input accessory 3502 includes a mechanical side member 3505 for coupling to an electronic device. The mechanical side member 3505 is attached to the user input accessory 3502 by a hinge 3506 so that it can be folded when not in use. Thus, this user input accessory 3502 is "collapsible".

In the above-described embodiment, this embodiment mainly belongs to a combination of method steps and device components related to an electronic device having a detachable user input accessory that can be configured as a keyboard for entering data through a touch sensitive surface. This should be observed. Accordingly, device components and method steps are specific to the embodiments of the present invention in order to avoid obscuring the disclosure with details that will be readily apparent to those skilled in the art having the benefit of the teachings herein. While only the details are shown, where appropriate, they are represented by common symbols in the figures.

Embodiments of the invention described above, together with certain non-processor circuits, include, for example, the ability to change the operating mode of the electronic device, the ability to receive data from the user input accessory, the user input accessory by means of characteristic time signals. Unique stored program instructions that control one or more processors to implement some, most, or all of the functionality of identifying an apparatus or controlling an electronic device as described herein, and one or more traditional processors. Will be understood.

Non-processor circuits may include, but are not limited to, radio receivers, radio transmitters, signal drivers, clock circuits, power supply circuits, and user input devices. As such, such functionality may be understood as a step in a method for performing a function associated with receiving a separable user interface as described herein. Alternatively, some or all of the functions may be implemented in a state machine without stored program instructions, or in one or more application specific integrated circuits (ASICs) in which each function or some combination of specific functions is implemented as custom logic. have. Of course, a combination of the two approaches could be used. Thus, methods and means for such functionality are described herein. In addition, despite the significant effort possible and the number of design choices that have been motivated, for example, by available time, current technical and economic considerations, those skilled in the art will be guided by the concepts and principles disclosed herein. Experiments are expected to facilitate the generation of such software instructions, programs, and ICs.

In connection with the figures, like numerals refer to like parts throughout. As used throughout the description and claims above, the following terms have the meanings explicitly associated with this specification unless the context clearly dictates otherwise: The meanings of “a”, “an” and “the” may be Including references, the meaning of "in" includes "in" and "on". Related terms such as first and second, upper and lower, etc. merely distinguish one entity or operation from another entity or operation without necessarily requiring or implying any actual relationship or order between the entities or operations. Can be used. Also, reference designators shown in parentheses herein denote components shown in drawings other than those discussed. For example, talking device 10 while discussing FIG. A will refer to element 10 shown in a drawing other than FIG.

In the foregoing specification, specific embodiments of the present invention have been described. However, one of ordinary skill in the art appreciates that various modifications and changes can be made without departing from the scope of the present invention as set forth in the claims below. Thus, while preferred embodiments of the invention are shown and described, it is clear that the invention is not so limited. Numerous modifications, variations, variations, substitutions and equivalents will occur to those skilled in the art without departing from the spirit and scope of the invention as defined by the following claims. Accordingly, the specification and figures are to be regarded in an illustrative rather than a restrictive sense, and all such modifications are intended to be included within the scope of present invention. Any element that results in any benefit, advantage, solution to a problem, and any benefit, advantage, or solution that will arise or be made more public, is an important, necessary, or essential feature or element of any or all claims. Not interpreted.

Claims (20)

As an electronic device,
A touch sensitive surface comprising an electromagnetic field sensor;
A controller operable with the touch sensitive surface;
A passive user input accessory attachable to the touch sensitive surface and configured to transmit a time signature signal to the touch sensitive surface upon attachment;
An identification module operable with the controller and configured to identify the passive user input accessory device from the time signature signal; And
An adaptation module operable with the controller and configured to reconfigure the electronic device when the passive user input accessory is attached and identified
Electronic device comprising a. The method of claim 1,
The passive user input accessory,
A plurality of user operable keys disposed along the first major surface; And
A plurality of conductive pads arranged along a second major surface arranged in a characteristic configuration and configured to interact with the touch sensitive surface
Electronic device comprising a. The method of claim 2,
Wherein the plurality of conductive pads are fewer in number than the plurality of user operable keys, and wherein the adaptation module is configured to reconfigure the electronic device by enabling multiplexed user input through the plurality of conductive pads. The method of claim 1,
The touch sensitive surface is a touch screen, and the adaptation module is configured to reconstruct a data display along the touch screen adjacent to the passive user input accessory. The method of claim 1,
When the passive user input accessory is attached to the touch sensitive surface along an interior area of the touch sensitive surface, the adaptation module is further configured to: a second of the touch sensitive surface extending from the second edge of the passive user input accessory. And differently from the portion to configure a first portion of the touch sensitive surface extending from the first edge of the passive user input accessory. 5. The method of claim 4,
And the adaptation module is further configured to correct the touch sensitive surface according to the identified time signature signal and a profile stored in a memory of the electronic device. The method according to claim 6,
The profile is:
A predefined input area corresponding to a characteristic configuration of a plurality of conductive pads disposed on the passive user input accessory;
A tactile response delivered by the electronic device upon user actuation of one or more keys disposed on the passive user input accessory;
One or more user preferences corresponding to the passive user input accessory;
One or more amplification levels of signals received from the plurality of conductive pads;
One or more threshold levels for signals received from the plurality of conductive pads; or
Keystroke sensitivity corresponding to the one or more keys disposed along the passive user input accessory
Electronic device comprising one or more of the. The method of claim 1,
The adaptation module,
Configuring the touch sensitive surface for an input detection method corresponding to the passive user input accessory;
Configuring system behaviors for predetermined input regions corresponding to the passive user input accessory:
Setting system gains for receiving signals from the passive user input accessory along the predetermined input areas; or
Combination of these
And reconfigure the input of the electronic device by one or more of the following. The method of claim 1,
The adaptation module
Configuring visible areas for the passive user input accessory for data display;
Configuring non-visible areas beneath the passive user input accessory to not display data;
Configuring a light emitting layer of the electronic device to project light to or through the passive user input accessory; or
Combination of these
And reconfigure the output of the electronic device by one or more of the following. The method of claim 1,
The adaptation module is further configured to provide the time signature from a predetermined area of the touch sensitive surface corresponding to the passive user input accessory such that subsequent field signals can be detected as operation of keys or controls on the passive user input accessory. And reconfigure the electromagnetic field sensor by correcting the signal. The method of claim 1,
The passive user input accessory is configured to be attachable along the touch sensitive surface or along a portion of the electronic device other than along the touch sensitive surface; And
The adaptation module places the electronic device in a first mode when the passive user input accessory is coupled to the touch sensitive surface and in a second mode when the passive user input accessory is separated from the touch sensitive surface. Electronic device configured. The method of claim 1,
The passive user input accessory is configured to be selectively disposed at any of a plurality of locations along the touch sensitive surface;
The adaptation module is configured to adjust the display of information on the touch sensitive surface in accordance with the position of the passive user input accessory. The method of claim 1,
The passive user input accessory includes a user control interface operable with an external user control device coupled to a user control interface, the user control interface configured to transmit control signals from the external user control device to the electronic device. device. A method of configuring an electronic device in response to attachment of a user control device to the touch sensitive surface using one or more controllers in an electronic device having a touch sensitive surface, the method comprising:
Using the one or more controllers, identifying the user control device from a time signature signal transmitted from the user control device to the electronic device via the touch sensitive surface;
Configuring a portion of the touch sensitive surface to receive input from the user control device according to the type of the user control device and the placement position of the user control device;
Including;
And the configuring comprises adjusting behaviors of the electronic device in the portion to receive input from one or more conductive pads attached to the user control device and disposed in the portion. 15. The method of claim 14,
The touch sensitive surface is a touch sensitive display,
Displaying information from a first application of the electronic device on a first portion of the touch sensitive display adjacent to a first edge of the user control device, and the touch sensitive display adjacent to a second edge of the user control device Displaying information from the second application of the electronic device on a second portion of the. 15. The method of claim 14,
The modifying step enables the first mode of operation of the electronic device when the user control device is attached to the touch sensitive surface and the second of the electronic device when the user control device is detached from the touch sensitive surface. Enabling the mode of operation. A passive user input accessory for an electronic device having a touch sensitive surface,
The plurality of conductive pads disposed along the passive user input accessory configured to transmit a time signature signal to the touch sensitive surface when a plurality of conductive pads are attached to the touch sensitive surface;
At least one user actuated component disposed along the passive user input accessory, wherein each user actuated component is configured to cause electromagnetic perturbation at the touch sensitive surface upon operation of the user actuated component; And
A mechanical coupling configured to hold the passive user input accessory for at least a portion of the touch sensitive surface
Passive user input attachment comprising a. 18. The method of claim 17,
One or more of the plurality of conductive pads are coupled to one or more passive secondary circuits including one or more of an inductor, resistor, or capacitor, wherein the one or more passive secondary circuits are configured to cause the time signature signal. Configured passive user input attachments. 18. The passive user input accessory of claim 17, wherein the mechanical coupling comprises one of electrostatic coupling, suction coupling, magnetic suction coupling, gravity coupling, or a combination thereof. 18. The method of claim 17,
The electronic device has one or more electroluminescent layers or light emitting diode backlights,
And at least one light transport element configured to pass light from at least one of the electroluminescent layer or the light emitting diode backlight through the user input accessory.

Images