JP2007281962A - Handsfree switching method and mobile terminal apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily change over handsfree service and ordinary service even in a user who does not recognize the concept of the handsfree service and the position of a changeover button between the ordinary service and the handsfree service. <P>SOLUTION: When, in a mobile terminal capable of service by an ordinary service mode or by a handsfree service mode, a change instruction of a received sound volume is received (ST202) from a user in a handsfree mode off state (ST201), a sound volume change screen, which visibly displays a received sound volume in the ordinary service and in the handsfree service in response to the change instruction and which receives a change in the received sound volume, is displayed (ST203). When the receiver sound volume becomes a maximum (ST204), a changeover confirmation screen is displayed (ST205). When a changeover instruction of changing the ordinary service mode and the handsfree service mode is received from the changeover confirmation screen (ST206), the operation is changed to the handsfree mode in response to the changeover instruction (ST207). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a hands-free switching method and a mobile terminal device, and in particular, a hands-free switching method and a mobile terminal that can easily switch between a normal call function and a hands-free call function based on a user operation input or the like. Relates to the device.

2. Description of the Related Art Conventionally, some mobile terminal devices such as mobile phones are equipped with a hands-free call function capable of making a call without holding the terminal device by hand. Generally, in such a mobile phone, switching between a normal call and a hands-free call is assigned to a dedicated button (switching button). In addition, a hands-free device for a telephone has been proposed that enables various settings in the hands-free call function to be set without visually confirming an operation unit (for example, see Patent Document 1).
Japanese Patent Application No. 2005-192103

  In the conventional mobile terminal device as described above, the switching between the normal call and the hands-free call can be switched between the two, but in this case, the user understands the concept of hands-free, There is a problem that switching between the two cannot be performed unless the position of the switching button is recognized in advance.

  The present invention has been made in view of such a situation, and even a user who does not recognize the concept of hands-free calling or the position of a switch button between normal calling and hands-free calling can easily switch between the two. It is an object of the present invention to provide a hands-free switching method and a mobile terminal device capable of performing the above.

  The hands-free switching method of the present invention is a hands-free switching method for a mobile terminal device capable of making a call in the normal call mode or the hands-free call mode. In response, a step of displaying a volume change screen that visually displays the reception volume in a normal call and a hands-free call and accepting the change in the reception volume, and switching for switching between the normal call mode and the hands-free call mode from the volume change screen A step of receiving an instruction, and a step of switching a call mode in response to the switching instruction.

  According to this method, since the normal call mode and the hands-free call mode are switched in response to the call mode switching instruction on the volume change screen displayed in response to the received volume change instruction, the received volume is changed. Since it is possible to instruct switching of the call mode from the volume change screen that accepts the call, even the user who does not recognize the concept of hands-free call or the position of the switch button between normal call and hands-free call can easily Can be switched.

  The hands-free switching method of the present invention is a hands-free switching method of a mobile terminal device capable of making a call in a normal call mode or a hands-free call mode, the step of detecting the current usage mode of the mobile terminal device, Switching between a normal call mode and a hands-free call mode based on the detected usage of the mobile terminal device.

  According to this method, since the normal call mode and the hands-free call mode are switched according to the detection result of the usage pattern of the mobile terminal device, the call mode can be switched without requiring a user operation input. Therefore, even the user who does not recognize the concept of hands-free call or the position of the switch button between normal call and hands-free call can easily switch between the two.

  The mobile terminal device of the present invention is a mobile terminal device capable of making a call in a normal call mode or a hands-free call mode, an instruction receiving means for receiving an instruction to change a received sound volume and a call mode switching instruction from a user, In response to an instruction to change the reception volume, a display means for displaying a reception volume in a normal call and a hands-free call and displaying a volume change screen for receiving the change in the reception volume, and an instruction for switching the call mode from the volume change screen is received. And mode control means for switching the call mode in response to the switching instruction.

  According to this configuration, the mode control means switches between the normal call mode and the hands-free call mode in response to the call mode switching instruction for the volume change screen displayed in response to the received volume change instruction. Since it is possible to instruct switching of the call mode from the volume change screen that accepts changes in the reception volume, even for users who do not recognize the concept of hands-free call or the position of the switch button between normal call and hands-free call It becomes possible to easily switch between the two.

  In the mobile terminal device of the present invention, on the volume change screen, the reception volume in the normal call and the reception volume in the hands-free call are connected and displayed, and the mode control means receives the reception that exceeds the maximum value of the reception volume in the normal call. When the volume change is accepted, the normal call mode is switched to the hands-free call mode. On the other hand, when the change of the reception volume is below the minimum value of the reception volume in the hands-free call, the hands-free call mode is switched to the normal call mode. Conceivable. In this case, it is possible to switch to the hands-free call mode simply by performing an operation to increase the reception volume in a normal call, while it is possible to switch to the normal call mode by simply performing an operation to decrease the reception volume in a hands-free call. Even a user who does not recognize the concept of a hands-free call or the position of a switch button between a normal call and a hands-free call can easily switch between the two.

  Further, in the mobile terminal device of the present invention, the volume change screen displays the reception volume in a normal call and the reception volume in a hands-free call side by side and sets one of them as a change-acceptable state, and sets the change-acceptable state as the other When a transition instruction to shift to is received, the call mode may be switched to a different call mode by the mode control means. In this case, since it is possible to instruct switching of the call mode from the volume change screen that accepts changes in the received volume, it is possible to instruct switching of the call mode, so the concept of hands-free calling or normal calls and hands-free calls Even a user who does not recognize the position of the switch button can easily switch between the two.

  The mobile terminal device of the present invention is a mobile terminal device capable of making a call in a normal call mode or a hands-free call mode, and a detection means for detecting a current usage mode of the apparatus main body, and a device detected by the detection means And mode control means for switching between a normal call mode and a hands-free call mode based on a usage form of the main body.

  According to this configuration, since the normal call mode and the hands-free call mode are switched according to the detection result of the usage state of the mobile terminal device by the detection means, the call mode can be switched without requiring user operation input. Since switching is possible, even a user who does not recognize the concept of hands-free call or the position of the switch button between normal call and hands-free call can easily switch between the two.

  In the mobile terminal device of the present invention, the mode control means switches the call mode to the normal call mode when the use form of the apparatus main body is the use form for the normal call, while calling when the use form for the normal call is not. It is conceivable to switch the mode to the hands-free call mode. In this way, by switching the call mode according to whether or not it is a usage form in a normal call, a user who does not recognize the concept of hands-free call or the position of the switch button between normal call and hands-free call However, it is possible to easily switch between the two.

  According to the hands-free switching method and the mobile terminal device according to the present invention, even a user who does not recognize the concept of hands-free calling or the position of the switching button between normal calling and hands-free calling can easily Can be switched.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

(Embodiment 1)
FIG. 1 is a functional block diagram of a mobile terminal apparatus (hereinafter referred to as “mobile terminal”) 100 to which the hands-free switching method according to Embodiment 1 of the present invention is applied. The configuration shown in FIG. 1 is simplified for the purpose of explaining the present invention, and it is assumed that the components mounted on a normal mobile terminal are provided. In particular, mobile terminal 100 according to the present embodiment has a normal call function and a hands-free call function. The hands-free call function is used, for example, when a videophone function installed in the mobile terminal 100 is executed. In the following, the mode for executing the normal call function in the mobile terminal 100 is referred to as “normal call mode”, and the mode for executing the hands-free call function is referred to as “hands-free mode”.

  As shown in FIG. 1, the mobile terminal 100 displays a control unit 101 that controls the entire terminal, an operation unit 102 that receives an operation input from a user, and a display screen that is necessary for the operation of the mobile terminal 100. Mobile terminal 100 by switching display unit 103, first speaker 104 that outputs sound in normal call mode, second speaker 105 that outputs sound in hands-free mode, and a connection destination by a changeover switch (SW). Speaker volume control device 106 that controls the sound volume output from the first speaker 104 or the second speaker 105, a microphone 107 that receives the sound emitted by the user, and a microphone sensitivity control device 108 that adjusts the sensitivity of the microphone 107. It is comprised including.

  The operation unit 102 includes a cross key that can instruct the cursor displayed on the display screen to move in the vertical direction or the horizontal direction, and a determination key for selecting an item corresponding to the position where the cursor is arranged. The display unit 103 displays an operation input screen such as a volume change screen and a switching confirmation screen described later. The speaker volume control device 106 sets the connection destination by the switching SW to the first speaker 104 in the normal call mode, while setting the connection destination by the switching SW to the second speaker 105 in the hands-free mode. The microphone sensitivity control device 108 performs control so that the sensitivity of the microphone 107 is higher than that in the normal call mode in the hands-free mode.

  The mobile terminal 100 according to the present embodiment has such a configuration, and switches between the normal call mode and the hands-free mode based on some operation input by the user, Even a user who does not recognize the position of the switch button between a call and a hands-free call can easily switch between the two.

  Hereinafter, control in the case of switching between the normal call mode and the hands-free mode in the mobile terminal 100 having the above configuration will be described with reference to FIGS. FIG. 2 is a flowchart for explaining an operation when mobile terminal 100 according to Embodiment 1 switches from the normal call mode to the hands-free mode. FIG. 3 is a flowchart for explaining the operation in the case of switching from the hands-free mode to the normal call mode in the mobile terminal 100 according to the first embodiment. FIG. 4 is a diagram showing an example of a volume change screen displayed on the display unit 103 in the mobile terminal 100 according to the first embodiment. 5 is a diagram illustrating an example of a switching confirmation screen displayed on the display unit 103 in the middle of the flow illustrated in FIG. 2, and FIG. 6 illustrates switching performed on the display unit 103 in the middle of the flow illustrated in FIG. It is a figure which shows an example of a confirmation screen.

  As shown in FIG. 2, in the normal call mode, the mobile terminal 100 (more specifically, the control unit 101) sets the hands-free mode to the off state (ST201). At this time, the connection destination by the switch SW is set to the first speaker 104.

  In a state in which the hands-free mode is turned off, control unit 101 determines whether or not to detect a speaker volume up operation corresponding to an instruction to change the received volume by the user (ST202). In the mobile terminal 100 according to the first embodiment, the speaker volume up or down operation is performed by the operation input in the vertical direction of the cross key of the operation unit 102. In ST202, control unit 101 determines whether an upward operation input of the cross key of operation unit 102 has been instructed. Note that when an operation for increasing the speaker volume is not detected, the monitoring operation is continued and a call process in the normal call mode is performed.

  When the speaker volume up operation is detected, control unit 101 causes display unit 103 to display a volume change screen 400 that visually indicates a change in volume output from the speaker to the user (ST203). As shown in FIG. 4, the volume change screen 400 includes a receiver volume (volume output from the first speaker 104: 401 shown in FIG. 4) and a hands-free volume (volume output from the second speaker 105: FIG. 402) are indicated by a plurality of scales. The scale of the hands-free volume 402 is arranged above the scale of the receiver volume 401. Each scale is composed of, for example, two kinds of display colors, and a portion corresponding to the currently set volume is displayed in a dark display color. FIG. 4 shows a volume change screen 400 when the hands-free mode is set.

  After displaying volume change screen 400 as shown in FIG. 4, control unit 101 determines whether or not receiver volume 401 is the maximum at the currently set volume (ST204). Here, when the receiver volume 401 is not the maximum, the control unit 101 continues the monitoring operation and performs a call process or the like in the normal call mode.

  On the other hand, when handset volume 401 is maximum, control unit 101 causes display unit 103 to display a switching confirmation screen 500 for confirming mode switching to the user (ST205). On the switching confirmation screen 500, as shown in FIG. 5, a message 501 for confirming whether or not to switch from the normal call mode to the hands-free mode is displayed, and a confirmation button 502 for inputting the response content is displayed. Is done.

  After displaying the switching confirmation screen 500 as shown in FIG. 5, the control unit 101 determines whether to detect a switching instruction using the confirmation button 502 of the switching confirmation screen 500 from the user (ST206). Here, when a switching instruction is detected, that is, when confirmation button 502 corresponding to “Yes” shown in FIG. 5 is detected, control unit 101 switches the normal call mode to the hands-free mode (ST207). At this time, the control unit 101 switches the connection destination by the switching SW to the second speaker 105 via the speaker volume control device 106 and increases the sensitivity of the microphone 107 via the microphone sensitivity control device 108.

  Thereafter, the mode switching operation is terminated, and a telephone call process or the like in the hands-free mode is performed. On the other hand, when the switching instruction is not detected in ST206, that is, when the confirmation button 502 corresponding to “No” shown in FIG. 5 is detected, the control unit 101 does not switch to the hands-free mode, but calls in the normal call mode. Perform processing.

  In contrast, in hands-free mode, as shown in FIG. 3, mobile terminal 100 (more specifically, control unit 101) is in hands-on mode (ST301). At this time, the connection destination by the switch SW is set to the second speaker 105.

  In a state in which the hands-free mode is turned on, control unit 101 determines whether or not a speaker volume down operation corresponding to an instruction to change the received volume by the user is detected (ST302). In ST302, the control unit 101 determines whether an operation input in the downward direction of the cross key of the operation unit 102 is instructed. Note that, when the speaker volume down operation is not detected, the monitoring operation is continued, and the call processing in the hands-free mode is performed.

  If the speaker volume down operation is detected, control unit 101 causes display unit 103 to display volume change screen 400 as in the case of speaker volume up operation (ST303). After displaying the volume change screen 400, the control unit 101 determines whether or not the hands-free volume 402 is the minimum at the currently set volume (ST304). Here, when the hands-free volume 402 is not the minimum, the control unit 101 continues the monitoring operation and performs a call process or the like in the hands-free mode.

  On the other hand, when hands-free volume 402 is minimum, control unit 101 causes display unit 103 to display switching confirmation screen 600 (ST305). In addition, on the switching confirmation screen 600 displayed here, as shown in FIG. 6, a message 601 for confirming whether to end the hands-free mode (whether to switch from the hands-free mode to the normal call mode) is displayed. It is different from the switching confirmation screen 500 shown in FIG. 5 in that a confirmation button 602 that can be displayed and input a response content is displayed.

  After displaying the switching confirmation screen 600 as shown in FIG. 6, the control unit 101 determines whether to detect a switching instruction using the confirmation button 602 on the switching confirmation screen 600 from the user (ST306). Here, when the switching instruction is detected, that is, when the confirmation button 602 corresponding to “Yes” shown in FIG. 6 is detected, the control unit 101 switches the hands-free mode to the off state, that is, the normal call mode ( ST307). At this time, the control unit 101 switches the connection destination by the switching SW to the first speaker 104 via the speaker volume control device 106 and lowers the sensitivity of the microphone 107 via the microphone sensitivity control device 108.

  Thereafter, the mode switching operation is terminated, and a call process or the like in the normal call mode is performed. On the other hand, when the switch instruction is not detected in ST306, that is, when the confirmation button 602 corresponding to “No” shown in FIG. 6 is detected, the control unit 101 does not switch the handsfree mode to the off state, Execute call processing, etc.

  As described above, in the mobile terminal 100 according to Embodiment 1, the normal call mode and the hands-free mode according to the call mode switching instruction for the volume change screen 400 displayed according to the received volume change instruction from the user. Therefore, since it is possible to instruct switching of the call mode from the volume change screen 400 that accepts a change in the received volume, a concept of a hands-free call or a button for switching between a normal call and a hands-free call is provided. Even a user who does not recognize the position can easily switch between the two.

  In particular, in mobile terminal 100 according to Embodiment 1, it is determined whether or not an operation to increase speaker volume is instructed, and when the receiver volume 401 at that time is maximum, the hands-free operation is performed from the normal call mode. While switching to the mode, it is determined whether or not a speaker volume down operation is instructed. If the hands-free volume 402 at that time is minimum, the mode is switched from the hands-free mode to the normal call mode. That is, a change instruction exceeding the maximum value of the receiver volume 401 or a change instruction falling below the minimum value of the hands-free volume 402 is handled as a switching instruction for switching the call mode. As described above, since the normal call mode and the hands-free mode are switched according to the speaker volume up / down operation, the concept of the hands-free call and the position of the switch button between the normal call and the hands-free call Even a user who does not recognize can easily switch between the two.

(Embodiment 2)
The mobile terminal 100 to which the hands-free switching method according to the second embodiment of the present invention is applied is different in the configuration of the volume change screen displayed according to the speaker volume up or down operation by the user, and The mobile terminal 100 is different from the mobile terminal 100 according to Embodiment 1 in that control according to an instruction input from the user using the volume change screen is different. In addition, about the structure of the mobile terminal 100 which concerns on Embodiment 2, since it is the same as the mobile terminal 100 which concerns on Embodiment 1, the description is abbreviate | omitted (refer FIG. 1).

  Hereinafter, control in the case of switching between the normal call mode and the hands-free mode in the mobile terminal 100 according to Embodiment 2 will be described with reference to FIGS. FIG. 7 is a flowchart for explaining an operation in the case of switching from the normal call mode to the hands-free mode in the mobile terminal 100 according to the second embodiment. FIG. 8 is a flowchart for explaining the operation when switching from the hands-free mode to the normal call mode in the mobile terminal 100 according to the second embodiment. FIG. 9 is a diagram showing an example of a volume change screen displayed on the display unit 103 in the mobile terminal 100 according to the second embodiment. 7 and 8, the same processes as those shown in FIGS. 2 and 3 are denoted by the same reference numerals, and the description thereof will be omitted.

  As shown in FIG. 7, from the hands-free mode off state (ST201), when an operation for increasing the speaker volume corresponding to an instruction to change the received sound volume is received (ST202), the control unit 101 changes the volume on the display unit 103. The screen 900 is displayed (ST701). In the volume change screen 900, as shown in FIG. 9, the receiver volume (the volume output from the first speaker 104: 901 shown in the figure) and the hands-free volume (the volume output from the second speaker 105: the same). 902) shown in the figure are displayed side by side. In addition, the receiver volume 901 and the hands-free volume 902 are each represented by a plurality of scales. Each scale is composed of, for example, two kinds of display colors, and a portion corresponding to the currently set volume is displayed in a dark display color. In addition, the area corresponding to one mode that is currently set is in a state where it can accept an instruction to change the received volume (change acceptable state), and the area corresponding to the other mode cannot accept an instruction to change the received volume State (change not accepted). FIG. 9A shows a volume change screen 900 displayed when the normal call mode is set, and FIG. 9B shows the volume displayed when the hands-free mode is set. A change screen 900 is shown. In ST701, a volume change screen 900 shown in FIG. 9A is displayed.

  After the volume change screen 900 as shown in FIG. 9A is displayed, the control unit 101 performs an operation input to turn on the hands-free mode corresponding to the instruction to shift to the change acceptable state (hereinafter referred to as “ON” as appropriate). It is determined whether or not an operation is detected (ST702). In the mobile terminal 100 according to the second embodiment, in the state where the volume change screen 900 is displayed on the display unit 102, the hands-free mode is turned on / off by an operation input in the horizontal direction of the cross key of the operation unit 102. A state switching operation is performed. In ST702, control unit 101 determines whether or not an operation input in the left direction of the cross key of operation unit 102 has been instructed. Here, when the ON operation in the hands-free mode is not detected, the control unit 101 continues the monitoring operation and performs a call process or the like in the normal call mode.

  On the other hand, when detecting an ON operation of the hands-free mode, control unit 101 switches the normal call mode to the hands-free mode (ST703). At this time, the control unit 101 switches the connection destination by the switching SW to the second speaker 105 via the speaker volume control device 106 and increases the sensitivity of the microphone 107 via the microphone sensitivity control device 108. Thereafter, the mode switching operation is terminated, and a telephone call process or the like in the hands-free mode is performed.

  On the other hand, in the hands-free mode, as shown in FIG. 8, when the speaker volume down operation is accepted from the hands-free mode on state (ST 301) (ST 302), the control unit 101 displays the volume on the display unit 103. The change screen 900 is displayed (ST801). Here, a volume change screen 900 shown in FIG. 9B is displayed.

  After the volume change screen 900 shown in FIG. 9B is displayed, the control unit 101 performs an operation input for turning the hands-free mode in an off state, which corresponds to a change instruction in a change acceptance state (hereinafter referred to as “off operation” as appropriate). (ST802). As described above, in mobile terminal 100 according to the second embodiment, hands-free operation is performed by the left / right operation input of the cross key of operation unit 102 in a state where volume change screen 900 is displayed on display unit 102. A mode ON / OFF switching operation is performed. In ST802, control unit 101 determines whether or not an operation input in the right direction of the cross key of operation unit 102 has been instructed. Here, when the hand-free mode off operation is not detected, the control unit 101 continues the monitoring operation and performs a call process or the like in the normal call mode.

  On the other hand, when detecting an off operation of the hands-free mode, control unit 101 switches hands-free mode to the off state, that is, normal call mode (ST803). At this time, the control unit 101 switches the connection destination by the switching SW to the first speaker 104 via the speaker volume control device 106 and lowers the sensitivity of the microphone 107 via the microphone sensitivity control device 108. Thereafter, the mode switching operation is terminated, and a call process or the like in the normal call mode is performed.

  As described above, in the mobile terminal 100 according to the second embodiment, the received sound volume in the normal call and the received sound volume in the hands-free call are displayed side by side on the volume change screen 900 and either one of them can be changed and accepted. When a transition instruction to shift the change acceptance state to the other is accepted, the call mode is switched to a different call mode. As a result, it is possible to instruct switching of the call mode from the volume change screen that accepts a change in the received volume by simply shifting the change acceptance status, so the concept of hands-free calling or between normal calls and hands-free calls Even a user who does not recognize the position of the switching button can easily switch between the two.

(Embodiment 3)
The mobile terminal 100 to which the hands-free switching method according to the third embodiment of the present invention is applied determines the usage mode of the mobile terminal 100 based on the detection result by the sensor device 109 and determines the normal call mode and the hands-free mode. It is different from mobile terminal 100 according to Embodiment 1 or Embodiment 2 in that the mode is switched.

  FIG. 10 is a functional block diagram of mobile terminal 100 to which the hands-free switching method according to Embodiment 3 is applied. 10, the same components as those in FIG. 1 are denoted by the same reference numerals, and the description thereof is omitted. As shown in FIG. 10, mobile terminal 100 according to Embodiment 3 is configured to include a sensor device 109 for detecting the mode set in mobile terminal 100 in addition to the components shown in FIG. This is different from the mobile terminal 100 according to the first embodiment.

  The sensor device 109 includes an internal camera 109a, a face authentication sensor 109b, a temperature sensor 109c, a gyro sensor 109d, and a contact detection sensor 109e. The internal camera 109a captures an external video from a certain position of the mobile terminal 100. The face authentication sensor 109b detects whether the face image of the user has moved in conjunction with the internal camera 109a. The temperature sensor 109c detects the user's body temperature. The gyro sensor 109d detects the inclination of the mobile terminal 100. The contact detection sensor 109e detects contact of the user with the mobile terminal 100.

  Hereinafter, control in the case of switching between the hands-free mode and the normal call mode in the mobile terminal 100 according to Embodiment 3 will be described with reference to FIGS. 11 and 12. FIG. 11 is a flowchart for explaining an operation when mobile terminal 100 according to Embodiment 3 switches from the normal call mode to the hands-free mode. FIG. 12 is a flowchart for explaining an operation in the case of switching from the handsfree mode to the normal call mode in the mobile terminal 100 according to the third embodiment.

  As shown in FIG. 11, in the normal call mode, the mobile terminal 100 (more specifically, the control unit 101) sets the hands-free mode to an off state (ST1101). At this time, the connection destination by the switch SW is set to the first speaker 104.

  In a state in which the hands-free mode is turned off, control unit 101 determines whether the usage mode in the normal call mode is based on various detection results by sensor device 109 (ST1102). The determination of whether or not the usage mode in the normal call mode is used will be described later. Here, in the case of the usage pattern in the normal call mode, the control unit 101 continues the monitoring operation and performs a call process or the like in the normal call mode.

  On the other hand, when the usage mode is not the normal call mode, the control unit 101 causes the display unit 103 to display, for example, a switching confirmation screen 500 shown in FIG. 5 (ST1103). After displaying the switching confirmation screen 500 as shown in FIG. 5, the control unit 101 determines whether to detect a switching instruction using the confirmation button 502 of the switching confirmation screen 500 from the user (ST1104). Here, when a switching instruction is detected, that is, when confirmation button 502 corresponding to “Yes” shown in FIG. 5 is detected, control unit 101 switches the normal call mode to the hands-free mode (ST1105). At this time, the control unit 101 switches the connection destination by the switching SW to the second speaker 105 via the speaker volume control device 106 and increases the sensitivity of the microphone 107 via the microphone sensitivity control device 108.

  Thereafter, the mode switching operation is terminated, and a telephone call process or the like in the hands-free mode is performed. On the other hand, when the switching instruction is not detected in ST1104, that is, when confirmation button 502 corresponding to “No” shown in FIG. 5 is detected, control unit 101 performs call processing in the normal call mode without switching to the hands-free mode. Etc.

  On the other hand, in hands-free mode, as shown in FIG. 12, mobile terminal 100 (more specifically, control unit 101) turns hands-free mode on (ST1201). At this time, the connection destination by the switch SW is set to the second speaker 105.

  In a state in which the hands-free mode is turned on, control unit 101 determines whether the usage mode in the normal call mode is based on various detection results by sensor device 109 (ST1202). Here, when it is not the usage pattern in the normal call mode, the control unit 101 continues the monitoring operation and performs a call process or the like in the hands-free mode.

  On the other hand, if the usage mode is the normal call mode, control unit 101 switches the hands-free mode to the off state, that is, the normal call mode (ST1203). At this time, the control unit 101 switches the connection destination by the switching SW to the first speaker 104 via the speaker volume control device 106 and lowers the sensitivity of the microphone 107 via the microphone sensitivity control device 108. Thereafter, the mode switching operation is terminated, and a call process or the like in the normal call mode is performed.

  Here, a detection method by the sensor device 109 when determining whether or not the usage mode in the normal call mode in ST1102 shown in FIG. 11 or ST1202 shown in FIG. 12 will be described. Hereinafter, the case where the usage pattern of the mobile terminal 100 is detected for each configuration included in the sensor device 109 will be described.

  In the internal camera 109a, for example, it is possible to determine whether or not the usage mode in the normal call mode is in accordance with the brightness of the captured video. When the video to be shot is dark, it is determined that the user holds the mobile terminal 100 and is close to the ear, and it is determined that the usage mode is the normal call mode. On the other hand, when the captured video is bright, it is determined that the user does not hold the mobile terminal 100 and is placed somewhere, and is not used in the normal call mode, that is, hands-free. It is determined that this is a usage pattern in the mode.

  In the face authentication sensor 109b, for example, it is possible to determine whether or not the use mode in the normal call mode is used depending on whether or not there is an image that can be identified as a face. When the video to be shot is dark and there is nothing that can be identified as a face, the user determines that the user is holding the mobile terminal 100 and is close to the ear, and determines that the usage mode is the normal call mode. On the other hand, if there is an image that can be identified as a face in the captured video, it is determined that the user does not hold the mobile terminal 100 and is placed somewhere, and the usage mode in the normal call mode That is, it is determined that it is a usage form in the hands-free mode.

  In the temperature sensor 109c, it is possible to determine whether the usage mode is in the normal call mode according to the body temperature of the user. That is, when the user's body temperature can be detected, it is determined that the user is holding the mobile terminal 100 and is approaching the ear, and is determined to be in the usage mode in the normal call mode. On the other hand, when the user's body temperature cannot be detected, it is determined that the user does not hold the mobile terminal 100 and is placed somewhere, and is not used in the normal call mode, that is, hands-free. It is determined that this is a usage pattern in the mode.

  The gyro sensor 109d can determine whether the mobile phone 100 is in the normal call mode according to the inclination of the mobile terminal 100. That is, when the inclination of the mobile terminal 100 is nearly vertical, it is determined that the user is holding the mobile terminal 100 and is approaching the ear, and is determined to be in the normal call mode. On the other hand, when the inclination of the mobile terminal 100 is almost horizontal, it is determined that the user does not hold the mobile terminal 100 and is placed somewhere, and is not a usage mode in the normal call mode. That is, it is determined that the usage is in the hands-free mode.

  In the contact detection sensor 109e, it is possible to determine whether or not it is a usage form in the normal call mode depending on whether or not the user touches the mobile terminal 100. That is, when a part of the user's hand or face is in contact with the mobile terminal 100, it is determined that the user holds the mobile terminal 100 and is close to the ear, and the usage mode in the normal call mode is Judge that there is. On the other hand, when part of the user's hand or face is not in contact with the mobile terminal 100, it is determined that the user does not hold the mobile terminal 100 and is placed somewhere, It is determined that the usage mode is not the call mode, that is, the usage mode in the hands-free mode.

  Here, although the detection method of the usage mode of the normal call mode by each component in the sensor device 109 is described, it is preferable as an embodiment to improve the accuracy by combining these detection results.

  For example, the detection by the internal camera 109a may be difficult to make an accurate determination in the night or in a dark room. Therefore, the accuracy may be increased in combination with the temperature sensor 109c, the gyro sensor 109d, or the contact detection sensor 109e. . In addition, since the detection by the temperature sensor 109c may be difficult to make an accurate determination on a day when the temperature is hot, the accuracy may be increased in combination with the internal camera 109a or the contact detection sensor 109e. Furthermore, since detection by the gyro sensor 109d may be difficult to make an accurate determination when the user is talking while sleeping, the accuracy is improved in combination with the internal camera 109a, the temperature sensor 109c, or the contact detection sensor 109e. Anyway. Furthermore, since the detection by the contact detection sensor 109e may be difficult to make an accurate determination when it is in contact with other than the skin, the accuracy is improved by combining with the internal camera 109a, the temperature sensor 109c, or the contact detection sensor 109e. Anyway.

  As described above, the mobile terminal 100 according to Embodiment 3 switches between the normal call mode and the hands-free mode based on the detection result by the sensor device 109. As a result, it is possible to switch between the normal call mode and the hands-free mode without requiring user input, so the concept of the hands-free call and the position of the switching button between the normal call and the hands-free call are recognized. Even a non-user can easily switch between the two.

  In particular, in the mobile terminal 100 according to the third embodiment, the call mode is switched to the normal call mode when the usage mode of the apparatus main body is the usage mode in the normal call, while the usage mode in the normal call is not switched. Switch the call mode to the hands-free call mode. In this way, by switching the call mode according to whether or not it is a usage form in a normal call, a user who does not recognize the concept of hands-free call or the position of the switch button between normal call and hands-free call However, it is possible to easily switch between the two.

  In addition, this invention is not limited to the said embodiment, In the range which exhibits the effect of this invention, it can change and implement variously. Further, various modifications can be made without departing from the scope of the object of the present invention.

It is a functional block diagram of the mobile terminal to which the hands-free switching method according to Embodiment 1 of the present invention is applied. FIG. 5 is a flowchart for explaining an operation when switching from a normal call mode to a hands-free mode in the mobile terminal according to the first embodiment. FIG. 6 is a flowchart for explaining an operation when switching from the hands-free mode to the normal call mode in the mobile terminal according to the first embodiment. 6 is a diagram showing an example of a volume change screen displayed on the display unit in the mobile terminal according to Embodiment 1. FIG. It is a figure which shows an example of the switching confirmation screen displayed on a display part in the middle of the flow shown in FIG. It is a figure which shows an example of the switching confirmation screen displayed on a display part in the middle of the flow shown in FIG. FIG. 7 is a flowchart for explaining an operation when switching from a normal call mode to a hands-free mode in a mobile terminal according to Embodiment 2 of the present invention. FIG. 9 is a flowchart for explaining an operation when switching from the hands-free mode to the normal call mode in the mobile terminal according to the second embodiment. FIG. 10 is a diagram showing an example of a volume change screen displayed on a display unit in a mobile terminal according to Embodiment 2. It is a functional block diagram of the mobile terminal to which the hands-free switching method according to Embodiment 3 of the present invention is applied. FIG. 9 is a flowchart for explaining an operation when switching from a normal call mode to a hands-free mode in a mobile terminal according to a third embodiment. FIG. 10 is a flowchart for explaining an operation when switching from the hands-free mode to the normal call mode in the mobile terminal according to the third embodiment.

Explanation of symbols

100 Mobile terminal device (mobile terminal)
DESCRIPTION OF SYMBOLS 101 Control part 102 Operation part 103 Display part 104 1st speaker 105 2nd speaker 106 Speaker volume control apparatus 107 Microphone 108 Microphone sensitivity control apparatus 109 Sensor device

Claims (7)

  A method for hands-free switching of a mobile terminal device capable of making a call in a normal call mode or a hands-free call mode, the step of receiving an instruction to change a received sound volume from a user, and a normal call and a hands-free call according to the change instruction A step of displaying a volume change screen for visually displaying a received volume and receiving a change in the received volume; a step of receiving a switching instruction for switching between a normal call mode and a hands-free call mode from the volume change screen; and the switching instruction And a step of switching the call mode according to the method.   A method for hands-free switching of a mobile terminal device capable of making a call in a normal call mode or a hands-free call mode, the step of detecting the current usage mode of the mobile terminal device, and the use of the detected mobile terminal device And a step of switching between a normal call mode and a hands-free call mode based on a form.   A mobile terminal device capable of making a call in a normal call mode or a hands-free call mode, wherein an instruction receiving means for receiving an instruction to change the received sound volume and an instruction to switch the call mode from a user, and a normal response according to the instruction to change the received sound volume Display means for displaying a reception volume in a call and a hands-free call and displaying a volume change screen for receiving a change in the reception volume; and a call mode in response to the switching instruction when a call instruction for switching the call mode is received from the volume change screen And a mode control means for switching between the mobile terminal device and the mobile terminal device.   The volume change screen displays the reception volume in a normal call and the reception volume in a hands-free call, and the mode control unit receives a change in the reception volume that exceeds the maximum value of the reception volume in a normal call. 4. The mode is switched from the hands-free call mode to the normal call mode when a change in the reception volume lower than the minimum value of the reception volume in the hands-free call is accepted while the normal call mode is switched to the hands-free call mode. Mobile terminal device.   The volume change screen displays the reception volume in a normal call and the reception volume in a hands-free call side by side and sets one of them to a change acceptance state, and the mode control unit shifts the change acceptance state to the other. 4. The mobile terminal device according to claim 3, wherein upon receiving a transition instruction, the call mode is switched to a different call mode.   A mobile terminal device capable of making a call in a normal call mode or a hands-free call mode, and detecting a current usage pattern of the apparatus main body and a normal call based on the usage mode of the apparatus main body detected by the detection means And a mode control means for switching between a mode and a hands-free call mode.   The mode control means switches the call mode to the normal call mode when the usage mode of the apparatus main body is the usage mode for the normal call, and switches the call mode to the hands-free call mode when it is not the usage mode for the normal call. The mobile terminal device according to claim 6.

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