JP2005167651A - Mobile terminal device and mobile terminal control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile terminal device in which, when a call is incoming, a caller can be easily notified that it is impossible to answer the call. <P>SOLUTION: If a call is incoming and an acceleration sensor built in a mobile phone detects an acceleration different from the acceleration that appears if a user walks, a holding state is automatically provided and a signal indicating that the user can not answer the call is transmitted to an opposite party's terminal. Therefore, the user can notify the opposite party's terminal that he can not answer the call, only by shaking the mobile phone just once regardless of whether or not he is walking. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a mobile terminal device and a mobile terminal control method, and more particularly, to a mobile terminal device and a mobile terminal control method capable of easily notifying a caller that a user is unable to talk on an incoming call. About.

  In a congested train such as a commuter train, a mobile terminal device such as a mobile phone in a bag or a PDA having a communication function may arrive and ring for notification of an incoming call. In this case, when the user wants to stop the ringing of the mobile terminal device, the user needs to search for the mobile phone in the bag by hand and press a button for stopping the ringing of the found mobile terminal device. However, if the user makes a mistake in pressing the button of the found mobile terminal device and, for example, presses the incoming call button, the mobile phone enters a response state. In that case, the user must inform the caller that he / she cannot answer the call.

  There is a portable terminal device provided with an acceleration sensor. Such a mobile terminal device stops ringing when the acceleration sensor detects an acceleration caused by the user shaking the mobile terminal device during an incoming call (see, for example, Patent Document 1). If the technique described in Patent Document 1 is used, the user can stop ringing by simply shaking the mobile terminal device.

  In addition, a mobile phone device that includes a button for sending a message stored in advance to the caller when an incoming call is received, and that operates the button when the call is received to send a message according to the user's situation at the time of the call to the caller. (For example, refer to Patent Document 2).

JP 2002-354097 A (page 3-6, FIG. 4) Japanese Patent Laid-Open No. 10-243086 (page 5-9, FIG. 3)

  However, in the mobile terminal device described in Patent Document 1, the acceleration sensor detects acceleration even when the user is walking. Therefore, when the ringing tone is stopped only by shaking the mobile terminal device, the ringing tone may be erroneously stopped when the user is walking. Further, since the invention described in Patent Document 1 is intended to stop ringing on the incoming side, the ringing tone continues to sound at the communication terminal on the outgoing side. Therefore, the caller does not know the reason why the user on the receiving side does not respond, and may repeat the call again.

  The mobile phone device described in Patent Literature 2 can inform the caller of the reason why the user on the receiving side does not respond. However, if the user on the receiving side makes a mistake in pressing a button on the telephone device, there is a problem that a message that does not match the user's situation at the time of the incoming call is transmitted to the caller.

  Therefore, an object of the present invention is to provide a mobile terminal device and a mobile terminal control method that can easily and accurately tell a caller that a response cannot be made when an incoming call is received.

  In the portable terminal device according to the present invention, after receiving an incoming call, the acceleration signal output from the acceleration detecting means indicates that acceleration below a predetermined threshold appears periodically. And a control means for transmitting a signal indicating that the user of the mobile terminal device cannot respond to the transmission terminal when the signal indicates that an acceleration greater than a predetermined threshold has occurred. And

  When the control means indicates that an acceleration greater than a predetermined determination value has occurred after a period of time during which the acceleration is equal to or less than a predetermined value (may be 0) after a call has been received, continues for a predetermined time. The signal indicating that the user of the mobile terminal device cannot respond may be transmitted to the communication terminal that is the source. According to such a configuration, it is possible to easily detect that vibration is applied to the mobile terminal device when the user is not moving.

  For example, when there is an incoming call, the control means starts monitoring the acceleration signal. In such a configuration, when there is no incoming call, the acceleration detection means can be used for other purposes.

  Incoming call notification means for notifying the user of the mobile terminal device of an incoming call when there is an incoming call, and when the control means transmits a signal indicating that the user of the mobile terminal device cannot respond to the caller communication terminal. It may be configured to stop the operation. According to such a configuration, it is possible to stop the sound or the like for incoming call notification only by the user shaking the mobile terminal device once.

  The incoming call notification means informs the user of the mobile terminal device of the incoming call by sound or vibration, and after the control means has received the incoming call, an acceleration signal whose acceleration signal is equal to or lower than a predetermined threshold appears periodically. May be configured to increase the magnitude of the sound or vibration generated by the incoming call notification means. According to such a configuration, it is possible to more effectively notify the incoming call to a user who is concentrated on walking.

  The signal indicating that the user of the mobile terminal device cannot respond is, for example, a predetermined message, a predetermined sound, or a predetermined message and a predetermined sound.

  The control means may be configured to disconnect the line with the caller communication terminal after transmitting a signal indicating that the user of the mobile terminal device cannot respond to the caller communication terminal. According to such a configuration, the line is automatically disconnected after the user is notified that the response is impossible by simply shaking the mobile terminal device once.

  The control means indicates that an acceleration greater than a predetermined value has occurred within a predetermined time after starting transmission of a signal indicating that the user of the mobile terminal device cannot respond. In such a case, the voice data received from the transmission source communication terminal after such acceleration has occurred may be stored in the storage means. According to such a configuration, it is possible to automatically start the answering machine operation only by the user shaking the mobile terminal device once.

  The control means indicates that an acceleration greater than a predetermined value has occurred within a predetermined time after starting transmission of a signal indicating that the user of the mobile terminal device cannot respond. In such a case, the voice data received from the communication terminal as the transmission source from the next incoming call may be stored in the storage means. According to such a configuration, the user can start the answering machine operation without performing any operation from the next incoming call by simply shaking the mobile terminal device once.

  The mobile terminal control method according to the present invention starts detecting vibration applied to the mobile terminal device when there is an incoming call, and vibrations having a magnitude equal to or smaller than a predetermined threshold appear periodically in the mobile terminal device. When a vibration greater than a predetermined threshold is detected in the state, a signal indicating that the user of the mobile terminal device cannot respond is transmitted to the communication terminal as the transmission source.

  When the mobile terminal control method detects that a vibration greater than a predetermined determination value has occurred after a period of time during which the magnitude of vibration is equal to or less than a predetermined value (may be 0) continues for a predetermined time, the mobile terminal device You may be comprised so that the signal which shows that a user cannot respond may be transmitted to the communication terminal of a transmission origin.

  According to the present invention, the user can easily shake the mobile terminal device once without searching for the mobile terminal device body or pressing a predetermined button regardless of whether the user is in an exercise state such as walking. You can tell the caller that you can't respond by simply performing a simple operation.

Embodiment 1 FIG.
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram schematically showing an embodiment of a portable terminal device according to the present invention together with a wireless communication network 3 and other communication terminals 2. The mobile terminal device is a mobile communication terminal such as a mobile phone or a PDA having a communication function. Hereinafter, a case where the mobile phone 1 is used as a mobile terminal device will be described as an example.

  The mobile phone 1 includes a ring / vibration unit (incoming call notification unit) 11 that notifies the user of an incoming call by voice or vibration, an acceleration sensor (acceleration detection unit) 12 that detects the acceleration of the mobile phone 1, and a mobile phone. And a control unit (control means) 13 for controlling the entire telephone 1. The acceleration sensor preferably detects acceleration in the directions of three axes (X axis, Y axis, Z axis). If the acceleration sensor detects acceleration in the three-axis directions, a significant signal (acceleration is not 0) is output from the acceleration sensor regardless of which direction the user shakes the mobile phone 1.

  The mobile phone 1 and the communication terminal 2 are communicably connected via a mobile phone communication network as the wireless communication network 3. The communication terminal 2 is a mobile phone, for example, and includes a speaker 21 that outputs sound. The mobile phone 1 can communicate with a wired telephone such as a private fixed telephone or a public telephone via the wireless communication network 3 and a wired public telephone network (not shown) or an IP telephone network (not shown). . That is, the communication terminal 2 may be a private fixed telephone or a public telephone.

  The acceleration sensor 12 may be used as an input means for inputting a predetermined signal to, for example, pedometer application software or game application software incorporated in the mobile phone 1. Such application software measures the number of steps according to the number of times the acceleration sensor 12 detects an acceleration of a predetermined value or more, and recognizes vibration as an input instruction.

  FIG. 2 is a block diagram illustrating a specific configuration example of the mobile phone 1. As shown in FIG. 2, the control unit 13 inputs the output of the acceleration sensor 12 as a digital signal via the AD converter 14. The control unit 13 includes a CPU (not shown) and a ROM (not shown) in which programs are stored. The mobile phone 1 also transmits a radio signal as a radio wave via an antenna (not shown) and receives the radio signal via the antenna, an operation unit 16 including a numeric keypad and function keys, an LCD, and the like. It includes a display unit 17, a microphone 18 for inputting voice, a speaker 19 for outputting voice and ringtone, and a vibrator 20 for generating vibration used in place of the ringtone.

  The sounding / vibrating unit 11 shown in FIG. 1 corresponds to the speaker 19 and the vibrator 20 in the specific configuration example shown in FIG. In this embodiment, both the voice and the ring tone are output from the speaker 19, but a speaker for outputting the voice and a sound output means for outputting the ring tone may be provided separately. Good. The operation unit 16 and the display unit 17 are provided on the surface of the mobile phone 1.

  Next, the operation of the present embodiment will be described. FIG. 3 is a flowchart showing the operation of the mobile terminal device according to the present embodiment.

  When the mobile phone 1 is in a standby state (step S101), the acceleration sensor 12 stops detecting acceleration. Specifically, the control unit 13 does not monitor a signal output from the acceleration sensor 12. That is, the signal output from the acceleration sensor 12 is not used to stop the ringtone or vibration. Note that the ringing tone and the vibration for notifying the user of the incoming call are called incoming call notification. Hereinafter, when the user shakes the mobile phone 1 in order to stop the ringtone or stop the vibration, it may be referred to as an incoming call notification stop operation.

  When the control unit 13 detects that the mobile phone 1 has received an incoming call from the communication terminal 2, for example, the control unit 13 outputs a ringtone from the speaker 19 as the ringing / vibration unit 11 to notify the user that there has been an incoming call (Step S 13). S102, S103). Voice or melody can be used as a ringtone. When the setting is made to use vibration instead of the ringtone, the control unit 13 vibrates the vibrator 20 as the ringing / vibration unit 11 to notify the user that there is an incoming call.

  Further, when there is an incoming call, the control unit 13 causes the acceleration sensor 12 to start detecting acceleration. Specifically, the control unit 13 enters a state of monitoring a signal indicating the magnitude of acceleration output from the acceleration sensor 12 (step S104). The acceleration sensor 12 outputs an analog signal (acceleration signal) having an amplitude corresponding to the magnitude of acceleration. The analog signal is converted into a digital signal by the AD converter 14. Therefore, a digital signal having a numerical value corresponding to the magnitude of acceleration is output to the control unit 13.

  FIG. 4 is an explanatory diagram illustrating an output example of the acceleration signal output from the acceleration sensor 12. The control unit 13 determines whether the user is in an exercise state such as walking (hereinafter referred to as “walking” or “walking state”) based on the acceleration signal that is the output of the acceleration sensor 12. As indicated by a broken line in FIG. 4, the control unit 13 indicates that acceleration signals whose acceleration signal is larger than a predetermined value (may be 0) and below a predetermined threshold value X appear periodically. In the state where it is, it is determined that the user is walking. More specifically, the control unit 13 enters a state of monitoring whether or not the user is walking when an acceleration greater than a predetermined value and equal to or less than a predetermined threshold value X appears twice. When acceleration that is greater than a predetermined value and equal to or less than a predetermined threshold appears periodically, it is determined that the user is walking.

  The predetermined threshold value X is generally a value larger than the acceleration indicated by the acceleration signal when a human is walking with the mobile phone 1 held in his / her hand or stored in a bag or the like. The value is smaller than the acceleration that generally appears when the mobile phone 1 is shaken. In addition, the period in the expression “appearing periodically” does not have to be a strictly constant period, and generally occurs when a person is walking with the mobile phone 1 held in his hand or in a bag or the like. A degree of error is acceptable. In addition, the predetermined value may be 0, but when the mobile phone 1 is mounted on a vibrating vehicle or the like, the predetermined value is not 0 so that the user is not erroneously detected to be walking due to the vibration. It may be set to a value.

  Therefore, the control unit 13 continues the state in which the acceleration signal is zero for a predetermined time or more, or indicates a non-zero acceleration but a state for which the acceleration is smaller than the predetermined value for a predetermined time or more. If so, it is determined that the user is not walking. Further, even when an acceleration larger than a predetermined value is generated, it is determined that the user is not walking even when such an acceleration does not appear periodically. If the control unit 13 determines that the user is not walking, the control unit 13 monitors the acceleration signal until the user performs an operation for responding to the incoming call or until the user performs an operation for stopping the incoming call notification. Is continued (steps S105 and S106). When the user performs an operation for a response such as pressing the incoming call button, the control unit 13 stops the ring tone from the speaker 19 or stops the vibration of the vibrator 20. Also, monitoring of the acceleration signal is stopped. Then, the state of the mobile phone 1 is shifted to the call state (step S107).

  When the user shakes the mobile phone 1, the acceleration signal shows a relatively large value. When it is determined that the user is not walking, the control unit 13 determines that the user has shaken the mobile phone 1 if the acceleration signal indicates a value larger than the determination value Y. In that case, the control unit 13 stops the incoming call notification, temporarily captures the line, and shifts the mobile phone 1 to the hold state (step S108). In the hold state, the control unit 13 transmits a signal corresponding to a preset hold sound or a signal corresponding to a preset hold message to the communication terminal 2 via the wireless unit 15. When the transmission of the signal according to the hold sound or the signal according to the hold message is completed, the control unit 13 disconnects the line (step S109), and ends the monitoring of the acceleration signal (step S110). And it returns to a standby state.

  When receiving a signal corresponding to the hold sound, the communication terminal 2 outputs the hold sound from the speaker 21. When a signal corresponding to the hold message is received, the hold message is output from the speaker 21. The user of the communication terminal 2, that is, the caller, can recognize that the user of the mobile phone 1 cannot respond by the hold sound or the hold message. Note that the control unit 13 of the mobile phone 1 may transmit both a signal corresponding to the hold sound and a signal corresponding to the hold message.

Embodiment 2. FIG.
Next, a second embodiment will be described. The configuration of the mobile phone 1 of this embodiment is the same as that of the first embodiment shown in FIG. 1, and the operation of the mobile phone 1 will be described with reference to the flowchart of FIG.

  FIG. 5 is an explanatory diagram illustrating another output example of the acceleration signal output from the acceleration sensor 12. When the output of the acceleration sensor 12 is periodically larger than a predetermined value (may be 0) and below a predetermined threshold (for example, a signal as indicated by A in FIG. If it is output), the control unit 13 determines that the user of the mobile phone 1 is in a walking state. In this state, when an acceleration signal larger than a predetermined threshold appears at a timing different from the timing according to the appearance cycle of acceleration larger than the predetermined value (timing indicated by B in FIG. 5), the control unit 13 determines that the user has swung the mobile phone 1 while walking. Even when such a determination is made, the control unit 13 stops the incoming call notification, establishes a call once by connecting the line, and then shifts the mobile phone 1 to the hold state (step S107). Thereafter, the mobile phone 1 is controlled in the same manner as in the first embodiment.

  The threshold value for determining whether or not the user is in a walking state may be different from the threshold value for determining that the user has shaken the mobile phone 1 while walking.

  As described above, when the control unit 13 detects that the acceleration signal has periodically appeared that significant acceleration appears periodically, the speaker 19 serving as an incoming call notification unit detects that the cycle has collapsed. And the operation of the vibrator 20 is stopped. Moreover, the signal which shows that the user of a portable terminal device cannot respond is transmitted to the communication terminal 2 of a transmission origin. Specifically, in the state where the acceleration signal indicates that the acceleration equal to or lower than the predetermined threshold appears periodically, the acceleration signal is greater than the predetermined threshold. , The operation of the incoming call notification unit is stopped, and a signal indicating that the user of the mobile terminal device 1 cannot respond is transmitted to the communication terminal 2.

  When the control unit 13 determines that the user is in a walking state, the volume of the sound output from the speaker 19 is increased so that the user can easily understand that the mobile phone 1 is receiving a call. You may let them. Further, when setting is made to use vibration instead of the ringtone, the control unit 13 may perform control to increase the vibration of the vibrator 20.

Embodiment 3 FIG.
Next, a third embodiment will be described. The configuration of the mobile phone 1 of this embodiment is the same as that of the first embodiment shown in FIG. 1, and the operation of the mobile phone 1 will be described with reference to the flowchart of FIG.

  FIG. 6 is an explanatory diagram showing still another output example of the acceleration signal output from the acceleration sensor 12. After receiving an incoming call, the control unit 13 periodically shows an acceleration greater than a predetermined value (which may be 0) and below a predetermined threshold value X as indicated by C in FIG. As described above, it is determined that the user is in a walking state. In that case, monitoring of the acceleration signal is continued until the user performs an operation for responding to the incoming call or until the user executes an operation for stopping the incoming call notification (steps S105 and S106).

  In this state, when the period during which the acceleration is equal to or less than the predetermined value continues for a predetermined period, the control unit 13 determines that the user has stopped walking. In this case, the predetermined period is a period of one period or more of significant signals periodically appearing in the section C in FIG. Thereafter, as in the case of the first embodiment, when the acceleration signal indicates a value larger than the determination value Y, the control unit 13 determines that the user has shaken the mobile phone 1. In that case, the control unit 13 stops the incoming call notification, once establishes the call, and then shifts the mobile phone 1 to the hold state (step S107). Thereafter, the mobile phone 1 is controlled in the same manner as in the first embodiment.

  As described above, in the present embodiment, after receiving an incoming call, the control unit 13 has an acceleration signal whose acceleration signal is greater than a predetermined determination value after a period in which the acceleration is equal to or less than the predetermined value continues for a predetermined time. If it has occurred, the operation of the incoming call notification unit is stopped, and a signal indicating that the user of the mobile terminal device 1 cannot respond is transmitted to the communication terminal 2 that is the transmission source.

Embodiment 4 FIG.
The control unit 13 includes a rewritable storage unit (storage unit) such as a RAM or a flash ROM that can store the voice received from the communication terminal 2 that is the transmission source. The control unit 13 uses such a storage unit to start transmission of a signal according to the hold sound or a signal according to the hold message to the wireless terminal 2 within a predetermined time. When the cellular phone 1 is shaken, an answering machine operation may be performed in which the voice transmitted by the communication terminal 2 is stored in the storage unit.

  FIG. 7 is a flowchart showing an answering machine operation. After starting the holding operation as shown in the first to third embodiments, the acceleration signal is a predetermined value (for example, in the first and third embodiments within a predetermined time). When the acceleration is greater than the determination value Y or the same value as the threshold value X in the second embodiment (step S201), the control unit 13 ends the holding operation (step S203). That is, the transmission of the hold sound or the hold message is interrupted. Then, a predetermined message (message notifying that the user is absent) is transmitted to the communication terminal 2 via the wireless unit 15 (step S204). The communication terminal 2 outputs such a message from the speaker 21. The caller knows that the voice about the message can be transmitted to the mobile phone 1 by listening to such a message.

  If the acceleration sensor 12 does not output an acceleration signal indicating an acceleration equal to or greater than a preset value within a predetermined time, the control unit 13 proceeds to step S109 (step S202).

  In the mobile phone 1, the control unit 13 stores the voice data received from the communication terminal 2 in the storage unit after transmitting a message notifying that the user is absent (step S205). Thereafter, the process proceeds to step S109.

  Note that the user can operate the operation unit 16 of the mobile phone 1 to set whether or not the control unit 13 performs the answering machine operation. If the setting is made not to perform the answering machine operation, the control unit 13 does not execute the processing shown in FIG.

  Here, the answering machine operation is executed immediately when the user shakes the mobile phone 1 once in the hold state. However, if the user shakes the mobile phone 1 once in the hold state, the answering machine operation starts from the next incoming call. It may be executed. In this case, when the control unit 13 detects from the acceleration signal that the user has shaken the mobile phone 1, the control unit 13 ends the hold operation and disconnects the line. Then, the internal state is automatically set to the answering machine operating state. In this state, for example, when there is an incoming call from the communication terminal 2, the control unit 13 transmits a message to the communication terminal 2 notifying that the user is absent without performing an incoming call notification by a ring tone or vibration. And the audio | voice data received from the communication terminal 2 are memorize | stored in a memory | storage part.

  As described above, in each of the above embodiments, when there is an incoming call, the control unit 13 starts monitoring the acceleration signal that is the output of the acceleration sensor 12, and the user is walking using the acceleration signal. Determine whether or not. Then, if the user is walking, it is determined that the user has swung the mobile phone 1 when an acceleration that breaks the cycle of the acceleration generated based on the walking occurs. Further, if the user is not walking, it is determined that the user has swung the mobile phone 1 when an acceleration having a magnitude equal to or greater than a predetermined determination value occurs once. Therefore, regardless of whether or not the user is walking, the control unit 13 can perform the above-described holding operation when the user shakes the mobile phone 1 once.

  The acceleration sensor 12 built in the mobile phone 1 is a means for detecting whether the mobile phone 1 is shaken, that is, whether the mobile phone 1 is vibrated. Therefore, in each of the embodiments described above, in the state in which vibration having a magnitude equal to or smaller than the predetermined threshold is periodically appearing in the mobile phone 1, a vibration larger than the predetermined threshold has occurred. When detected, a mobile terminal control method is used in which a signal indicating that the user of the mobile phone 1 cannot respond is transmitted to the communication terminal 2 that is the transmission source. In addition, when a period of time during which the magnitude of the vibration is equal to or less than a predetermined value continues for a predetermined time and a vibration greater than a predetermined determination value is detected, a signal indicating that the user of the mobile phone 1 cannot respond is transmitted. The portable terminal control method for transmitting to the original communication terminal 2 is used.

  The present invention is effectively used in a mobile terminal device having a communication function such as a mobile phone. In particular, it is used to improve the operability of the mobile terminal device.

It is a block diagram which shows one Embodiment of the portable terminal device by this invention with a wireless communication network and another communication terminal. It is a block diagram which shows the specific structural example of a mobile telephone. It is a flowchart which shows operation | movement of the portable terminal device by this invention. It is explanatory drawing which shows one output example of an acceleration signal. It is explanatory drawing which shows the other output example of an acceleration signal. It is explanatory drawing which shows the other output example of an acceleration signal. It is a flowchart which shows an answering machine operation | movement.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile phone 2 Communication terminal 3 Wireless communication network 11 Ringing / vibration part 12 Acceleration sensor 13 Control part 19 Speaker 20 Vibrator 21 Speaker

Claims (11)

In a mobile terminal device connected to another communication terminal via a wireless communication network,
Acceleration detecting means for detecting an acceleration and outputting an acceleration signal indicating the magnitude of the acceleration;
After receiving an incoming call, the acceleration signal output from the acceleration detection means indicates that the acceleration signal equal to or lower than a predetermined threshold appears periodically. And a control means for transmitting a signal indicating that the user of the mobile terminal device cannot respond to the source communication terminal when an acceleration greater than the threshold value has occurred. . If the acceleration signal indicates that an acceleration greater than a predetermined determination value has occurred after a period in which the acceleration is equal to or less than a predetermined value continues for a predetermined time after an incoming call is received, the user of the mobile terminal device The mobile terminal device according to claim 1, wherein a signal indicating that cannot respond is transmitted to a communication terminal as a transmission source. The portable terminal device according to claim 1, wherein the control unit starts monitoring the acceleration signal when an incoming call is received. When there is an incoming call, the mobile terminal device has an incoming call notification means for notifying the user of the incoming call,
The control unit stops the operation of the incoming call notification unit when transmitting a signal indicating that the user of the mobile terminal device cannot respond to the communication terminal that is the transmission source. The portable terminal device according to item. The incoming call notification means informs the user of the mobile terminal device of an incoming call by sound or vibration,
When the acceleration signal indicates that an acceleration equal to or less than a predetermined threshold appears periodically after an incoming call, the control means generates a loud sound or vibration generated by the incoming call notification means. The portable terminal device according to claim 4, wherein the height is increased. The signal indicating that the user of the mobile terminal device cannot respond is a predetermined message, a predetermined sound, or the predetermined message and the predetermined sound. Mobile terminal device. The control means disconnects the line with the caller communication terminal after transmitting a signal indicating that the user of the mobile terminal device cannot respond to the caller communication terminal. The mobile terminal device according to any one of the above. Comprising storage means for storing the voice of the communication partner;
The control means indicates that an acceleration greater than a predetermined value has occurred in the acceleration signal within a predetermined time after starting transmission of a signal indicating that the user of the mobile terminal device cannot respond. The mobile terminal device according to any one of claims 1 to 7, wherein when the acceleration occurs, the storage unit stores voice data received from a communication terminal as a transmission source. . Comprising storage means for storing the voice of the communication partner;
The control means indicates that an acceleration greater than a predetermined value has occurred in the acceleration signal within a predetermined time after starting transmission of a signal indicating that the user of the mobile terminal device cannot respond. The mobile terminal device according to any one of claims 1 to 7, wherein the storage unit stores voice data received from a communication terminal that is a transmission source from the next incoming call. A method of controlling a mobile terminal device connected to another communication terminal via a wireless communication network,
When there is an incoming call, it starts detecting vibrations applied to the mobile terminal device,
When it is detected that a vibration greater than the predetermined threshold value is generated in a state where vibrations having a magnitude equal to or smaller than a predetermined threshold value periodically appear in the mobile terminal device, the user of the mobile terminal device A mobile terminal control method, comprising: transmitting a signal indicating that a response cannot be made to a communication terminal as a transmission source. When it is detected that a vibration greater than a predetermined determination value has occurred after a period in which the magnitude of the vibration is equal to or less than a predetermined value has continued for a predetermined time, a signal indicating that the user of the mobile terminal device cannot respond is sent The mobile terminal control method according to claim 10, wherein the mobile terminal control method transmits to a communication terminal.

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