JP3855714B2 - mobile phone - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a portable telephone capable of performing hands-free conversation by the in-vehicle handsfree apparatus.
[0002]
[Prior art]
Conventionally, an in-vehicle hands-free call system includes an in-vehicle hands-free device and a holder, and by setting a mobile phone in this holder, the mobile phone is connected to the in-vehicle hands-free device through electric wiring through the holder, Some allow free calls.
[0003]
Here, the in-vehicle hands-free device is provided with a dedicated operation unit arranged in the vicinity of the support unit of the steering device, and when performing operations such as calling and ending calls, the in-vehicle hands-free device and the mobile phone Both operation units are used.
[0004]
[Problems to be solved by the invention]
By the way, in recent years, it has been studied to connect a mobile phone and an in-vehicle hands-free device by wireless communication such as a Bluetooth method instead of electrical wiring.
[0005]
In this case, since the mobile phone is not restrained by the electric wiring, it is predicted that the place where the mobile phone is placed is not determined.
[0006]
For example, if the location of the mobile phone is not fixed, it is predicted that the driver searches for a mobile phone while driving if the driver can make a hands-free call and then make a call on the mobile phone.
[0007]
In this case, the driver may have a problem of driving aside without looking at the vehicle traveling direction. This problem also occurs when the driver makes a call, as in the case of receiving an incoming call.
[0008]
In addition, even if a holder or the like is placed at a fixed position and the place where the mobile phone is placed is determined as described above, both the in-vehicle hands-free device and the mobile phone can be used. It is not preferable from the viewpoint of driving.
[0009]
This is because if both the in-vehicle hands-free device and the mobile phone have an operation unit, it is necessary for the driver to select one of both operation units during driving. Therefore, the driver is confused, and this point is also one factor that prevents the driver from concentrating on driving.
[0010]
In view of the above point, the driver is intended to be able to satisfactorily perform the operation.
[0015]
[Means for Solving the Problems]
The present invention, in order to achieve the above object, according to the invention of claim 1, an operation unit for accepting an operation related to the call (60), wirelessly connected to the vehicle handsfree apparatus (10), Car Hands A mobile phone capable of making a hands-free call with a free device, and having prohibition means (S140) for prohibiting acceptance of an operation of an operation unit related to a call when wirelessly connected to the in-vehicle hands-free device It is characterized by.
[0016]
As described above, when the mobile phone is wirelessly connected to the in-vehicle hands-free device, the reception of the operation of the operation unit related to the call is prohibited. For this reason, it can prevent that a driver | operator performs operation relevant to a telephone call to the operation part of a mobile telephone.
[0017]
As a result, there is no need to select one operation unit of the in-vehicle hands-free device and the mobile phone, and it is possible to suppress inconvenience in selecting one of the operation units. Therefore, the driver can concentrate on driving and can perform driving well.
[0018]
Further , in the first aspect of the present invention , the transmission means (S100) for transmitting a transmission signal for inquiring the permission of wireless connection to the in-vehicle hands-free device, and the permission of wireless connection transmitted from the in-vehicle hands-free device are shown. Determination means (S110, S120) for determining whether or not the permission signal has been received, and when the determination means determines that the permission signal has been received, the prohibition means accepts the operation of the operation unit related to the call. characterized in that it prohibited.
[0019]
In the first aspect of the invention, as in the second aspect of the invention, the in-vehicle hands-free device transmits a permission signal indicating permission of the wireless connection when the automobile is moving. Also good. Further, as in the invention described in claim 3 , the transmission means may transmit a transmission signal to inquire permission of wireless connection at the time of an incoming call, and further, as in the invention described in claim 4 , The transmission means may transmit a transmission signal to inquire permission of wireless connection during a call.
[0020]
In the invention described in claim 5 , the operation unit (60) for accepting an operation related to a call and the in-vehicle hands-free device (10) are wirelessly connected, and a hands-free call can be performed by the in-vehicle hands-free device. Mobile phone that has a prohibition means (S140) for prohibiting reception of operation of the operation unit related to a call when the mobile phone is wirelessly connected to the in-vehicle hands-free device. Transmission means (S100) for transmitting a transmission signal to make an inquiry to the free device, and determination means (S110, S120) for determining whether or not a permission signal indicating permission for wireless connection transmitted from the in-vehicle hands-free device has been received. When, and a determining operation determining means for determining whether or not a calling operation is performed (S240) by the in-vehicle handsfree apparatus, permitted by permission determination means No. is determined that has been received, and when it is determined that the call operation is performed by the in-vehicle handsfree apparatus by the operation determination means, that you prohibit acceptance of operation of the operation section is prohibiting means associated with the call Features. In the invention according to claim 5 , as in the invention according to claim 6 , the in-vehicle hands-free device transmits a permission signal indicating permission of the wireless connection when the automobile is moving. Also good.
[0022]
Incidentally, the reference numerals in parentheses of each means described above are an example showing the correspondence with specific means described in an embodiment described later.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
1 to 4 show an embodiment of an in-vehicle hands-free call system for an automobile according to the present invention.
[0024]
FIG. 1 is a block diagram showing a schematic configuration of an in-vehicle hands-free call system. FIG. 2 is a block diagram showing a circuit configuration of the in-vehicle hands-free device, and FIG. 3 is a block diagram showing a circuit configuration of the mobile phone. FIG. 4 is a block diagram showing details of the operation unit of the mobile phone.
[0025]
As shown in FIG. 1, the in-vehicle hands-free call system includes an in-vehicle hands-free device 10 and a mobile phone 20.
[0026]
The in-vehicle hands-free device 10 includes an antenna 30, a radio circuit 300, a speaker 34, a microphone 35, and an operation unit 37. A detailed configuration of the in-vehicle hands-free device 10 is shown in FIG. The radio circuit 300 includes a high frequency modulation / demodulation circuit 31, a baseband circuit 32, a control circuit 33, an audio circuit 36, a level conversion circuit 41, a ROM 42, and a RAM 43.
[0027]
The high frequency modulation / demodulation circuit 31 demodulates the downstream vehicle interior signal received via the antenna 30 and outputs the downstream vehicle interior demodulation signal, and modulates the upstream vehicle interior baseband signal and outputs the vehicle interior modulation signal from the antenna 30. To do. In the high frequency modulation / demodulation circuit 31, for example, a Bluetooth system is adopted as a wireless system.
[0028]
The baseband circuit 32 performs transmission baseband processing on the vehicle interior digital signal and outputs an upstream vehicle interior baseband signal. In this transmission baseband processing, error correction code addition processing, interleaving processing, and the like are performed on the vehicle interior digital signal. The baseband circuit 32 performs reception baseband processing on the vehicle interior demodulated signal and outputs a vehicle interior reception baseband signal. In this reception baseband processing, error correction processing, deinterleaving processing, and the like are performed on the vehicle interior demodulation signal.
[0029]
The control circuit 33 is configured to include a microcomputer, and performs processing for communicating with the mobile phone 20 to function as a hands-free phone by transmitting and receiving via the baseband circuit 32. Note that the computer program of the control circuit 33 is stored in the ROM 42, and various data associated with the above processing is stored in the RAM 43.
[0030]
The audio circuit 36 includes a D / A conversion circuit and an A / D conversion circuit, converts the transmission signal from the microphone 35 from analog to digital, outputs a vehicle interior digital signal, and digitally converts the vehicle interior reception baseband signal. -Analog conversion and output the received signal to the speaker 34.
[0031]
The operation unit 37 includes normally-open switches 37a to 37d to which various functions such as calling and ending are assigned. The switch signals of the normally open switches 37 a to 37 d are shaped by the level conversion circuit 41 and input to the control circuit 33.
[0032]
Next, the mobile phone 20 will be described. As shown in FIG. 1, the cellular phone 20 includes antennas 50 and 53, a radio circuit 500, a speaker 58, a microphone 59, an operation unit 60, and a display 63. A detailed configuration of the mobile phone 20 is shown in FIG. As shown in FIG. 3, the radio circuit 500 includes a high frequency modulation / demodulation circuit 51, a baseband circuit 52, a high frequency modulation / demodulation circuit 54, a baseband circuit 55, a control circuit 56, an audio circuit 57, a ROM 61, and a RAM 62. Has been.
[0033]
The antenna 50 receives a downlink communication signal from the base station using radio waves as a medium, and transmits an uplink communication signal to the base station using radio waves as a medium. The antenna 50, together with the high frequency modulation / demodulation circuit 51 and the baseband circuit 52 described below, constitutes a radio that performs radio communication with the base station of the carrier of the mobile phone 20.
[0034]
The high frequency modulation / demodulation circuit 51 demodulates the downlink communication signal and outputs the downlink demodulation signal, and modulates the transmission baseband signal to output the uplink communication signal. In the high frequency modulation / demodulation circuit 51, for example, a W-CDMA method or the like is adopted as a wireless method.
[0035]
The baseband circuit 52 performs transmission baseband processing on one or both of the output from the audio circuit 57 via the control circuit 56 and the output from the baseband circuit 55 via the control circuit 56, and transmits the transmission baseband. Output a signal. The baseband circuit 52 performs reception baseband processing on the downlink demodulated signal of the high frequency modulation / demodulation circuit 51 and outputs a reception baseband signal.
[0036]
Here, when a call is made using the speaker 58 and the microphone 59 of the mobile phone 20, the output of the audio circuit 57 is transmitted baseband processing at the time of transmission, and the reception baseband processing signal is transmitted to the audio circuit 57 at the time of reception. It is done. Further, when performing a hands-free call, the output of the baseband circuit 55 is subjected to transmission baseband processing during transmission, and the reception baseband signal is transmitted to the baseband circuit 55 during reception.
[0037]
The high frequency modulation / demodulation circuit 54 demodulates the upstream vehicle interior signal received by the antenna 53 and outputs the upstream vehicle interior demodulation signal, and modulates the vehicle interior baseband signal from the baseband circuit 55 to convert the downstream vehicle interior signal. The signal is transmitted from the antenna 53.
[0038]
The baseband circuit 55 performs transmission baseband processing on the reception baseband signal from the baseband circuit 52 and outputs a vehicle interior baseband signal, and also performs reception baseband processing on the uplink vehicle interior demodulation signal from the high frequency modulation / demodulation circuit 54. To output a received baseband processing signal.
[0039]
The antenna 53, together with the high frequency modulation / demodulation circuit 54 and the baseband circuit 55, constitutes a low-power radio that performs radio communication with the in-vehicle handsfree device 10.
[0040]
The control circuit 56 includes a microcomputer, and communicates with the base station or the in-vehicle hands-free device 10 through transmission / reception via the baseband circuit 52 or 55 to function as a normal telephone or a hands-free telephone. Perform processing. Note that the computer program of the control circuit 56 is stored in the ROM 61, and various data associated with the above processing is stored in the RAM 62.
[0041]
The audio circuit 57 converts one received baseband signal of the baseband circuits 52 and 55 from digital to analog and outputs a received signal to the speaker 58. Here, when a call is made with the speaker 58 and the microphone 59, the received baseband signal of the baseband circuit 52 is sent to the audio circuit 57. Further, when a hands-free call is performed, the reception baseband signal of the baseband circuit 55 is sent to the audio circuit 57.
[0042]
As shown in FIG. 4, the operation unit 60 includes a level conversion circuit 60 </ b> A and normally open switches 600 to 620. The level conversion circuit 60A shapes the waveform of each switch signal from the normally open switches 600 to 620 and outputs it to the control circuit 56. Further, the normally open switches 600 to 620 are each pressed to output a switch signal. Here, each of the normally open switches 600 to 620 includes “off hook”, “on hook”, “redial”, numerals “1” to “9”, symbols “>”, “<”, “mail”, Functions such as “F”, “Clear”, “Memo”, etc., such as a call and mail, are assigned.
[0043]
Hereinafter, the operation of the present embodiment will be described with reference to FIGS. The wireless connection processing of the mobile phone 20 is divided into an incoming call mode, a call mode, an in-vehicle call mode, and a mobile call mode, and will be described below for each mode.
[0044]
(Incoming call mode)
The control circuit 56 of the mobile phone 20 executes the computer program according to the flowcharts shown in FIGS.
[0045]
When the computer program receives an incoming call signal (incoming signal) from the base station during standby, the computer program starts the processing shown in FIG.
[0046]
First, in step (hereinafter referred to as S) 100, an inquiry signal as to whether or not wireless connection is possible is sent to the in-vehicle hands-free device 10. This inquiry signal includes incoming call information and incoming call sound information (incoming call melody).
[0047]
Next, it is determined whether or not an answer signal indicating whether wireless connection is possible is received (S110). When the answer signal is received, it is determined based on the answer signal whether the in-vehicle hands-free device 10 permits the wireless connection (S120).
[0048]
If it is determined that the in-vehicle hands-free device 10 has permitted the wireless connection, as shown in FIG. 7, a message “The hands-free call button will not function” is displayed on the display 63 (S130). Further, the acceptance of all the operations of the normally open switches 600 to 620 is prohibited (S140).
[0049]
Next, an off-hook signal, which will be described later, is received from the in-vehicle hands-free device 10, and the off-hook signal is sent to the base station (S150). When an off-hook signal is sent to the base station, a telephone line connection is made.
[0050]
When a downlink communication signal is received from the base station, the downlink communication signal is transmitted to the in-vehicle hands-free device 10 as a down-vehicle interior signal. The indoor signal is sent to the base station as an upstream communication signal (S160).
[0051]
Next, it is determined whether or not the vehicle interior end signal has been received from the in-vehicle handsfree device 10 (S200). The vehicle interior end signal is transmitted from the in-vehicle hands-free device 10 when the end operation is performed. When the vehicle interior end signal is received, the end signal is sent to the base station (S210).
[0052]
In S120, when it is determined that the wireless connection is not permitted by the in-vehicle hands-free device 10, the display of the normal function (for example, display of received electric field strength, clock, etc.) is displayed on the display 63 (S220). ). Furthermore, acceptance of operations relating to calls, mails, etc. to the normally open switches 600 to 620 is started (S230).
[0053]
Next, details of the wireless connection process of the in-vehicle hands-free device 10 will be described with reference to FIG. The control circuit 33 executes the computer program according to the flowchart shown in FIG.
[0054]
First, in S300, when an inquiry signal for wireless connection is received from the mobile phone 20, an answer signal for the inquiry signal is sent to the mobile phone 20 (S310). This answer signal includes information indicating permission or non-permission of wireless connection. For example, based on the detected vehicle speed from a vehicle speed sensor (not shown), the wireless connection is permitted when the vehicle is moving, and the wireless connection is not permitted when the vehicle is stopped. As a result, it is possible to prevent a call using the speaker 58 and the microphone 59 of the mobile phone 20 when the automobile is moving.
[0055]
When an answer signal permitting wireless connection is sent in the process of S310, the process proceeds from S320 to S330, and a signal for ringing a ring tone is output from the speaker 34 to the audio circuit 36. Note that an answer signal for permitting wireless connection is transmitted to the mobile phone 20, whereby wireless connection between the mobile phone 20 and the in-vehicle hands-free device 10 is started.
[0056]
Thereafter, it is determined whether or not the switch 37a (switch “1”) for instructing the start or end of the call has been pressed (S340). When the user presses the switch 37a to start a call, the determination is YES, and an off-hook signal is sent to the mobile phone 20 (S350). Then, in order to perform a hands-free call, when a signal in the passenger compartment is received from the mobile phone 20, the reception voice is output from the speaker 34, and the transmission signal is input from the microphone 35 via the audio circuit 36. Sometimes, an in-vehicle interior signal is sent to the mobile phone 20 (S360).
[0057]
Thereafter, while the switch 37a is not pressed, the processes of S360 and S380 are repeated, and the hands-free call continues. When the user presses the switch 37a to end the call, a vehicle interior end signal is sent to the mobile phone 20 (S390).
[0058]
(Call mode)
In this call mode, during a call using the speaker 58 and the microphone 59 of the mobile phone 20, the call using the speaker 58 and the microphone 59 is switched to a hands-free call using the in-vehicle hands-free device 10. It is.
[0059]
The wireless connection processing of the control circuit 56 of the mobile phone 20 in this call mode is shown in FIGS. 9 and 10, the same reference numerals as those in FIGS. 6 and 7 denote the same processes. This wireless connection process is executed in a time division manner with a call process (a call using the speaker 58 and the microphone 59).
[0060]
First, in S100, an inquiry signal is sent to the in-vehicle hands-free device 10. When the mobile phone 20 receives an answer signal indicating permission of wireless connection from the in-vehicle hands-free device 10, a message is displayed on the display 63 (S130) as in the case of the incoming call mode (S130), and the normally open switch 600 ~ Reception of all the operations of 620 is prohibited (S140), processing for performing a hands-free call (S160), and reception determination of the vehicle interior end signal (S210) are performed.
[0061]
Further, the in-vehicle hands-free device 10 performs a wireless connection process shown in FIG. In FIG. 11, the same reference numerals as those in FIG. 8 denote the same processes.
[0062]
In S300, when an inquiry signal for wireless connection is received from the mobile phone 20, an answer signal for the inquiry signal is sent to the mobile phone 20 (S310). When an answer signal for permitting wireless connection is sent, as in the case of the incoming call mode, a process for performing a hands-free call (S360), an end of call determination (S380), and an in-vehicle end signal (S390) I do.
[0063]
(In-car call mode)
In this in-vehicle calling mode, wireless connection is performed when a calling operation is performed by the in-vehicle hands-free device 10.
[0064]
The wireless connection processing of the in-vehicle hands-free device 10 in this in-vehicle calling mode is shown in FIG. 12, the same reference numerals as those in FIG. 8 indicate the same processes. This wireless connection process is executed in a power-on state.
[0065]
First, in S300, when a wireless connection inquiry signal is received from the mobile phone 20, an inquiry signal response signal is sent to the mobile phone 20 (S310). When an answer signal permitting wireless connection is transmitted, it is determined whether or not a call operation is performed by the switches 37a to 37d (S400).
[0066]
When it is determined that a call operation has been performed by the switches 37a to 37d, a vehicle interior call signal (including an abbreviated number) is sent to the mobile phone 20 (S420). Thereafter, similarly to the process in the incoming call mode, a process for performing a hands-free call (S360), an end of call determination (S380), and transmission of an in-vehicle end signal (S390) are performed.
[0067]
Further, the control circuit 56 of the mobile phone 20 performs the wireless connection process shown in FIGS. 13 and 14, the same reference numerals as those in FIGS. 5 and 6 denote the same processes.
[0068]
First, similar to the process in the incoming call mode, when an inquiry signal is transmitted (S100) and a response signal indicating permission of wireless connection is received (S120), the in-vehicle call signal is received from the in-vehicle hands-free device 10. Determine whether or not. When it is determined that the vehicle interior call signal has been received, the call signal is sent to the base station to start the telephone line connection in order to send the call signal to the base station (S250).
[0069]
Thereafter, in the same manner as the process in the incoming call mode, a message is displayed on the display 63 (S130), the acceptance of all operations of the normally open switches 600 to 620 is prohibited (S140), and a hands-free call is performed. Process (S160) and reception determination of the vehicle interior end signal (S200, S210).
[0070]
Next, features of the present embodiment will be described. When the mobile phone 20 is wirelessly connected to the in-vehicle hands-free device 10, the mobile phone 20 prohibits reception of all operations of the normally open switches 600 to 620. Thereby, reception of the operation of normally open type switches 600-620 related to a telephone call can be prohibited.
[0071]
For this reason, it can prevent that a driver | operator performs operation relevant to a telephone call to the operation part of a mobile telephone. As a result, it is not necessary to select one operation unit of the in-vehicle hands-free device 10 and the mobile phone 20, and it is possible to suppress inconvenience in selecting one of the operation units. Therefore, the driver can concentrate on driving and can perform driving well.
[0072]
Furthermore, in the above embodiment, the mobile phone 20 has been described as an example in which operations related to a call are prohibited while the hands-free call is being performed while being wirelessly connected to the in-vehicle hands-free device 10. However, if the vehicle speed is less than the predetermined speed, as shown in FIG. 15 and FIG. 16, only reception of an operation related to the end call is permitted when a hands-free call is performed wirelessly. May be.
[0073]
In this case, as described below, when the mobile phone 20 is wirelessly connected to the in-vehicle hands-free device 10, the mobile phone 20 permits reception of a call operation and a switching operation to a hands-free call.
[0074]
First, an inquiry signal as to whether or not wireless connection is possible is sent to the in-vehicle hands-free device 10 (S100). Here, the in-vehicle hands-free device 10 permits wireless connection when the vehicle speed is less than a predetermined speed based on the output of a vehicle speed sensor (not shown).
[0075]
Thereafter, when an answer signal indicating permission of wireless connection is received from the in-vehicle hands-free device 10 (S110, S120), it is determined whether or not a call operation has been performed by the normally open switches 600 to 620 (S260). When it is determined that a call operation has been performed, a call signal is sent to the base station. Thereafter, a call signal is sent to the base station, and a telephone line connection is started.
[0076]
Thereafter, when a downlink communication signal is received from the base station, the received voice is output from the speaker 58 based on the downlink communication signal. Further, the uplink communication signal is transmitted to the base station based on the output signal of the audio circuit 57 (S160A). As a result, the mobile phone 20 makes a call using the speaker 58 and the microphone 59. Thereafter, it is determined whether or not an operation for switching to a hands-free call has been performed by the normally open switches 600 to 620 (S270).
[0077]
Here, when it is determined that an operation for switching to a hands-free call has been performed by the operation unit 60, a message is displayed on the display 63 (S130), as in the case of the incoming call mode, and the normally open switch Reception of all operations 600 to 620 is prohibited (S140), processing for performing a hands-free call (S160), and reception determination of the vehicle interior end signal (S200, S210) are performed.
[0078]
If it is determined in S270 that the operation for switching to the hands-free call is not performed, it is determined whether or not the end call key is pressed (S280). Then, the process returns to S160A until the end call key is pressed, and the mobile phone 20 continues the call using the speaker 58 and the microphone 59.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an electric circuit configuration of a hands-free call system according to an embodiment of the present invention.
2 is a block diagram showing a configuration of an electric circuit configuration of the in-vehicle hands-free device shown in FIG. 1. FIG.
3 is a block diagram showing a configuration of an electric circuit configuration of the mobile phone shown in FIG. 1. FIG.
4 is a diagram showing details of an operation unit shown in FIG. 3;
FIG. 5 is a flowchart showing a part of the operation of the mobile phone shown in FIG. 1;
6 is a flowchart showing a part of the operation of the mobile phone shown in FIG. 1;
7 is a diagram showing a display example of the mobile phone shown in FIG. 1. FIG.
FIG. 8 is a flowchart showing a part of the operation of the in-vehicle hands-free device shown in FIG. 1;
FIG. 9 is a flowchart showing a part of the operation of the mobile phone shown in FIG. 1;
10 is a flowchart showing a part of the operation of the mobile phone shown in FIG. 1;
FIG. 11 is a flowchart showing a part of the operation of the in-vehicle hands-free device shown in FIG. 1;
12 is a flowchart showing a part of the operation of the in-vehicle hands-free device shown in FIG.
FIG. 13 is a flowchart showing a part of the operation of the mobile phone shown in FIG. 1;
FIG. 14 is a flowchart showing a part of the operation of the mobile phone shown in FIG. 1;
FIG. 15 is a flowchart showing a part of the operation of the mobile phone shown in FIG. 1;
16 is a flowchart showing a part of the operation of the mobile phone shown in FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Car-mounted hands-free apparatus, 20 ... Mobile phone, 600 thru | or 620 ... Mobile phone switch.

Claims (6)

An operation unit (60) for receiving an operation related to a call;
A mobile phone that can wirelessly connect to an in-vehicle hands-free device (10) and perform a hands-free call by the in-vehicle hands-free device,
When wirelessly connected to the in-vehicle hands-free device, it has prohibition means (S140) for prohibiting acceptance of operation of the operation unit related to the call.
A transmission means (S100) for transmitting a transmission signal to inquire the permission of the wireless connection to the in-vehicle hands-free device;
Determination means (S110, S120) for determining whether or not a permission signal indicating permission for wireless connection transmitted from the in-vehicle hands-free device is received;
The mobile phone according to claim 1, wherein when the determination unit determines that the permission signal has been received, the prohibition unit prohibits acceptance of an operation of an operation unit related to the call.   The mobile phone according to claim 1, wherein the in-vehicle hands-free device transmits a permission signal indicating permission of the wireless connection when the vehicle is moving.   2. The mobile phone according to claim 1, wherein the transmission unit transmits the transmission signal in order to inquire permission of the wireless connection when an incoming call is received.   2. The mobile phone according to claim 1, wherein the transmission means transmits the transmission signal to inquire about permission of the wireless connection during a call. An operation unit (60) for receiving an operation related to a call;
A mobile phone that can wirelessly connect to an in-vehicle hands-free device (10) and perform a hands-free call by the in-vehicle hands-free device,
When wirelessly connected to the in-vehicle hands-free device, it has prohibition means (S140) for prohibiting acceptance of operation of the operation unit related to the call.
A transmission means (S100) for transmitting a transmission signal to inquire the permission of the wireless connection to the in-vehicle hands-free device;
Determining means (S110, S120) for determining whether or not a permission signal indicating permission of wireless connection transmitted from the in-vehicle hands-free device is received;
Operation determination means (S240) for determining whether or not a call operation has been performed by the in-vehicle hands-free device,
When the permission determining means determines that the permission signal has been received, and the operation determining means determines that a call operation has been performed by the in-vehicle hands-free device, the prohibiting means performs an operation related to the call. A cellular phone characterized by prohibiting acceptance of operations of certain departments.   6. The mobile phone according to claim 5, wherein the in-vehicle hands-free device transmits a permission signal indicating permission of the wireless connection when the vehicle is moving.

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