KR19980067785A - Auxiliary input device using universal serial bus method - Google Patents

Abstract

The present invention relates to an auxiliary input device using a USB that can be easily connected to the auxiliary input device that can recognize a character directly written by a user and transfer it to a computer.

Auxiliary input device using USB according to the present invention is a character input means for outputting a contact position code indicating the position of the cells in contact with any one of the tool, such as the user's finger and pen in the area divided into a plurality of cells, and the character input means A control means for recognizing a contact position code inputted from the device as a corresponding predetermined predetermined character code, converting the recognized character code into a code agreed with a computer, and outputting the code in a USB standard; and a USB port for outputting a code from the control means. Equipped.

According to the present invention, by using a touch panel using a USB method can be connected and used at any time during the use of the computer, there is an effect that a user unfamiliar with the keyboard can conveniently input data or commands.

Description

Auxiliary input device using universal serial bus method

1 is a block diagram of a general keyboard.

2 is a flowchart illustrating the operation principle of a general keyboard.

3 is an external view illustrating an example in which an auxiliary input device using USB according to the present invention is connected to a keyboard.

4 is a block diagram illustrating a configuration of an auxiliary input device using USB according to the present invention.

* Description of the symbols for the main parts of the drawings *

2: key input unit 4: key matrix

6: microprocessor 10: keyboard

12: USB port 14: USB mouse port

16: USB touch panel port 18: Touch panel

20: touch panel 22: control unit

24: display unit 26: character recognition program

28: USB protocol 30: USB port

The present invention relates to an auxiliary input device that a user inputs into a computer by recognizing a character written directly by using a tool such as a finger or a pen, and more particularly, by using a Universal Serial Bus (hereinafter referred to as USB) port. The present invention relates to an auxiliary input device using a USB device, which is simpler to set up and use.

In general, the keyboard, which is the input device of a computer used for data input, is connected to the computer and the keyboard port, and when the computer is loaded before loading the operating system and the operating system is loaded, the keyboard is suitable for booting the computer. After the driver is loaded and loaded into the computer, the keyboard can be used by the user.

Referring to FIGS. 1 and 2, the general operation principle of the keyboard will be described. 1 is a block diagram illustrating a general keyboard, in which a keyboard typically includes a key input unit 2 having a plurality of keys, a key matrix 4 for outputting a signal corresponding to a key pressed by the key input unit 2, and a key matrix. And a microprocessor 6 which converts a signal input from (4) into a code promised with a computer and outputs it.

2 is a flowchart for explaining the operation principle of the keyboard shown in FIG.

First, when the user presses a key selected in the key input unit 2 corresponding to the keyboard of the keyboard (step 1), the key matrix 4 corresponding to the key switching block is a signal corresponding to the key pressed from the key input unit 2. Is output to the microprocessor 6. The microprocessor 6 then calculates a signal input from the key matrix 4 (step 2), converts it into a code promised with the computer, and sends it to the computer (steps 3 and 4).

In detail, the key matrix 4 has a key switch attached to an intersection where each output port and an input port meet by connecting 16 output ports horizontally and 8 input ports vertically to the microprocessor 4. Up to 128 keys can be configured. In this key matrix 4, the microprocessor 6 sequentially applies predetermined scanning signals to the sixteen horizontal output ports and sequentially checks the signals applied to the eight vertical input ports to select the key switches pressed among the plurality of key switches. You will be judged. At this time, the microprocessor 6 checks whether the key is pressed in this way is called a scan, and the code recognized by the microprocessor 6 through the scan is called a keyboard scan code. In addition, the microprocessor 6 receives the keyboard scan code and converts it back into a code to be sent to a computer. The converted code is called a system scan code, and the computer receives the system scan code and interprets it to perform a corresponding operation.

However, in the conventional keyboard as described above, since the keys are positioned in a predetermined pattern, there is a problem in that the input speed is slow or the input is inconvenient for the user who does not learn such a keyboard or the disabled.

In addition, the user must boot the computer after connecting the keyboard to the computer in order to use the keyboard, but the keyboard can be used. Therefore, when a new keyboard is connected and the computer is turned on, the user must reboot the computer. There was an uncomfortable problem. In addition, there is a problem in that different computer ports are used when different auxiliary input devices are used.

On the other hand, the USB method is a connection standard for computer peripherals that is expected to revolutionize the use of computer peripherals, eliminating the complex serial and parallel ports located on the back of the computer. You can connect peripherals such as backup tape drives, monitors, keyboards, printers, scanners, joysticks, etc., and transfer rates up to 12Mbps. This USB has Plug Play functionality. In other words, when the USB method is inserted as it is (Plug) and operated (Play), when a new peripheral device is added to the computer, the computer automatically takes care of the operation method without a separate set-up process. It provides convenience to the user by setting function.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an auxiliary input device using USB that can be easily connected to a single USB port even while using a computer by using a USB method.

Another object of the present invention is to provide an auxiliary input device using USB that recognizes and transfers a handwritten writing directly to a computer, so that a user who is not familiar with a keyboard can conveniently input data or commands.

Another object of the present invention is to provide an auxiliary input device using USB that can be used not only as a computer but also as a data input device such as a personal digital assistant and a general telephone.

In order to achieve the above object, the auxiliary input device using the USB according to the present invention is a character for outputting a contact location code indicating the position of the cells in contact with any one of the tool, such as the user's finger and pen in the area divided into a plurality of cells A control means for recognizing an input means and a contact position code inputted from the character input means as a corresponding predetermined predetermined character code, converting the recognized character code into a code contracted with a computer, and outputting it in a USB standard, from the control means It is characterized by having a USB port for outputting the code of. In addition, the auxiliary input device using the USB according to the present invention comprises a display means for displaying the characters separated by the stroke input from the character input means through the control means to complete, and a character recognition program to be performed in the control means And storage means for each of the USB protocol programs.

Other objects and advantages of the present invention other than the above objects will become apparent from the description of the embodiments of the present invention with reference to the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 3 and 4. Here, the auxiliary input device using the USB according to the present invention, that is, the touch panel will be described with reference to the embodiment applied to the computer.

3 is an external view illustrating a connection of an auxiliary input device using USB according to the present invention to a keyboard. As shown in FIG. 3, the touch panel 18, which is an auxiliary input device, is a USB port 14, 16 for an auxiliary input device provided on the side of the keyboard 10, that is, a mouse or a touch panel according to the present invention. It is connected to the keyboard 10 through). In this case, the keyboard 10 supports the USB protocol and is connected to the computer through the USB port 12.

4 is a block diagram illustrating a configuration of an auxiliary input device using USB according to the present invention, and the touch panel of FIG. 4 includes a touch panel 20 for character input, a controller for performing a character recognition program and a USB protocol program ( 22), a display unit 24 showing characters input to the touch panel 20, and a USB port 30 serving as an output port.

In FIG. 4, the touch panel 20 is a means for inputting handwritten characters written by a user using a tool such as a finger or a pen. The touch panel 20 includes a user in a contact plate region composed of a plurality of square cells, for example, 5 × 5 cells. Applies a contact position code indicating the position of the touched cells to the controller 22 using a tool such as a finger or a pen.

The controller 22 receives the contact location code from the touch panel 20 and executes the character recognition program from the character recognition program storage 36. Accordingly, the controller 22 recognizes the corresponding character corresponding to the contact position code from the touch panel 20, converts the recognized character into a code contracted with the computer, and outputs it to the USB port 30. In this case, since the controller 22 uses a vector analysis method as a character recognition method, 90 to 100% of handwriting recognition is possible. In addition, the controller 22 performs a USB protocol program from the USB protocol program storage unit 28 to automatically perform a device initialization process when connected to a USB port of a computer, and outputs the converted code in a USB standard.

On the other hand, the display unit 24 displays a process of completing one character on the liquid crystal display (LCD) when the character input to the touch panel 20 from the user is transmitted through the control unit 20. In other words, the display unit 24 displays one character at a time as a means for displaying the characters separated into multiple strokes until completion. The code input from the controller 22 is transmitted to the computer through the USB port 30, which is an output port, and the USB line via the keyboard.

Accordingly, the computer interprets the code applied from the USB port 12 to perform input or control command of the corresponding data.

As such, the controller performs a USB protocol when the touch panel is connected to a computer, so that the controller can be connected and used at any time while the computer is in use.

The auxiliary input device may be directly connected to a USB port provided in a computer without using a keyboard. In addition, the auxiliary input device can be used as a data input device by connecting to a personal digital assistant and a general telephone.

As described above, according to the auxiliary input device using the USB according to the present invention, by connecting the auxiliary input device for recognizing the handwriting written by the user to the computer by using the USB method, it can be connected and used at any time while using the computer. And user who is not familiar with keyboard can input data or control command conveniently.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (6)

In a data input device, Text input means for outputting a contact location code indicating a location of cells in contact with any one of a tool such as a user's finger and a pen in an area divided into a plurality of cells; Control means for recognizing the contact location code inputted from the character input means as a corresponding predetermined predetermined character code, converting the recognized character code into a code contracted with a computer, and outputting the universal serial bus standard; And a universal serial bus port for outputting a code from the control means. The method of claim 1, The character input means is an auxiliary input device using a universal serial bus system, characterized in that consisting of 5 × 5 cells. The method of claim 1, And a display means for displaying a character separated by multiple strokes inputted through the control means from the character input means until completion. The method of claim 1, And a storage means for storing a character recognition program to be performed by the control means and a program for the universal serial bus protocol. The method of claim 1, The control means Auxiliary input device using the universal serial bus method characterized in that by performing a universal serial bus protocol to perform a device initialization process automatically when the data input device is connected to a computer to transmit the data in the universal serial bus method. The method of claim 1, The universal serial bus port Auxiliary input device using the universal serial bus method, characterized in that for connecting the computer and the control means via a keyboard that supports the universal serial bus standard.