JP2003115918A - On-vehicle hands-free speech system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hands-free speech system by which a driver can excellently drive a vehicle. SOLUTION: A mobile phone 20 inhibits acceptance of all operations of normally open switches 600 to 620 when being connected to an on-vehicle hands- free device 10. Since the on-vehicle hands-free speech system can inhibit the acceptance of the operations of the normally open switches 600 to 620 related to a speech, the driver can concentrate on its driving.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle hands-free call system for making a hands-free call using a mobile phone.

[0002]

2. Description of the Related Art Conventionally, an in-vehicle hands-free call system has an in-vehicle hands-free device and a holder. By setting a mobile phone in this holder, the mobile phone passes through the holder and is electrically connected to the in-vehicle hands-free device. There is one that is connected to and enables hands-free calling.

Here, the vehicle-mounted hands-free device is provided with a dedicated operation section arranged near the supporting portion of the steering device, and when the operations such as making a call and ending the call are carried out, the vehicle-mounted hands-free device and the portable device are carried. Both the operating part with the telephone is used.

[0004]

By the way, in recent years, a mobile phone and an in-vehicle hands-free device are not connected to each other by electric wiring.
For example, it is under study to establish a connection by wireless communication such as Bluetooth system.

In this case, since the mobile phone is not restricted by the electric wiring, it is expected that the place where the mobile phone is placed cannot be determined.

[0006] For example, if the place where the mobile phone is placed is not fixed, it is expected that the driver searches for the mobile phone while driving if it is possible to end the call on the mobile phone after making a hands-free call. To be done.

[0007] In this case, there is a possibility that the driver may drive sideways without looking at the traveling direction of the vehicle. This problem also occurs when the driver makes a call, as in the case of receiving an incoming call.

Further, even if the holder or the like is arranged at a fixed position to determine the place for placing the mobile phone, as described above,
It is not preferable that both the in-vehicle hands-free device and the mobile phone can be used from the viewpoint of driving by the driver.

This is because if both the in-vehicle hands-free device and the mobile phone have an operating section, the driver has to select one of the operating sections during driving. Therefore, the driver is confused, and this also contributes to preventing the driver from concentrating on driving.

In view of the above points, an object of the present invention is to provide an in-vehicle hands-free call system which enables a driver to drive satisfactorily.

[0011]

In order to achieve the above-mentioned object, the present invention provides a mobile phone (20) having an operation section (60) for accepting an operation related to a telephone call according to the invention of claim 1. , Has an in-vehicle operation unit (37a to 37d), and has an in-vehicle hands-free device (10) wirelessly connected to a mobile phone for making a hands-free call,
The mobile phone is characterized by having prohibiting means (S140) for prohibiting reception of an operation of the operation unit (60) related to a call when wirelessly connected to the in-vehicle hands-free device.

As described above, when the mobile phone is wirelessly connected to the in-vehicle hands-free device, reception of the operation of the operation unit related to the call is prohibited. Therefore, it is possible to prevent the driver from performing an operation related to a call on the operation unit of the mobile phone.

As a result, it is not necessary to select one of the operation units of the in-vehicle hands-free device and the mobile phone, and it is possible to prevent the user from being confused about selecting one of the operation units. Therefore, the driver can concentrate on driving and can drive satisfactorily.

Further, as in the invention described in claim 2, as the operation of the operation section related to the telephone call, a call end operation may be adopted. A calling operation may be adopted as the operation of the related operation unit. Further, as in the invention described in claim 4, an operation of receiving a telephone call may be adopted as an operation of the operation unit associated with a telephone call.

According to the fifth aspect of the invention, the in-vehicle hands-free device is wirelessly connected to the operation unit (60) that receives an operation related to the telephone call, and the hands-free conversation is performed by the in-vehicle hands-free device. The mobile phone capable of performing the above-mentioned operation is characterized by having prohibiting means (S140) for prohibiting reception of an operation of an operation unit related to a call when wirelessly connected to an in-vehicle hands-free device.

As described above, when the mobile phone is wirelessly connected to the vehicle-mounted hands-free device, the reception of the operation of the operation unit related to the call is prohibited. Therefore, it is possible to prevent the driver from performing an operation related to a call on the operation unit of the mobile phone.

As a result, it is not necessary to select one of the in-vehicle hands-free device and the portable telephone, and it is possible to prevent the user from being confused in selecting one of the operating units. Therefore, the driver can concentrate on driving and can drive satisfactorily.

Specifically, in the invention described in claim 6,
A transmission unit (S100) for transmitting a transmission signal for inquiring the in-vehicle hands-free device about the permission of the wireless connection, and a determination is made as to whether or not the permission signal indicating the permission of the wireless connection transmitted from the in-vehicle hands-free device is received. Judgment means (S1
10, S120), and the prohibiting unit may prohibit the acceptance of the operation of the operation unit related to the call when the determining unit determines that the permission signal is received.

Further, as in the invention described in claim 7, the transmitting means may transmit a transmission signal for inquiring permission of the wireless connection when receiving a call. Further, as in the invention described in claim 8, the transmitting means may transmit a transmission signal during a call to inquire about permission of wireless connection.

Then, as in the invention described in claim 9,
The in-vehicle hands-free device has an operation determination means (S240) for determining whether or not a call operation is performed, the permission determination means determines that the permission signal is received, and the in-vehicle hands-free operation is performed by the operation determination means. When it is determined that the calling operation is performed by the device, the prohibiting unit may prohibit the acceptance of the operation of the operation unit related to the call.

According to the tenth aspect of the invention, a means for inquiring the in-vehicle hands-free device about permission of wireless connection and a wireless connection of the mobile phone with the in-vehicle hands-free device when permitting wireless connection from the in-vehicle hands-free device. A program for causing a computer of a mobile phone to function as a prohibition means for prohibiting reception of an operation of an operation unit related to a call when wirelessly connected to a means for enabling a handsfree call by connection and an in-vehicle handsfree device Is characterized by.

Incidentally, the reference numerals in the parentheses of the above-mentioned means are examples showing the correspondence with the concrete means described in an embodiment to be described later.

[0023]

1 to 4 show an embodiment of an in-vehicle hands-free call system for an automobile according to the present invention.

FIG. 1 is a block diagram showing a schematic structure of a vehicle-mounted hands-free call system. FIG. 2 is a block diagram showing a circuit configuration of the vehicle-mounted 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.

As shown in FIG. 1, the in-vehicle hands-free call system has an in-vehicle hands-free device 10 and a mobile phone 20.

The in-vehicle hands-free device 10 includes an antenna 3
0, the wireless circuit 300, the speaker 34, the microphone 35, and the operation unit 37. FIG. 2 shows a detailed configuration of the vehicle-mounted hands-free device 10. The wireless circuit 300 is
High frequency modulation / demodulation circuit 31, baseband circuit 32, control circuit 33, audio circuit 36 level conversion circuit 41, ROM 4
2 and a RAM 43.

The high frequency modulation / demodulation circuit 31 demodulates the down vehicle interior signal received via the antenna 30 and outputs a down vehicle interior demodulated signal, and also modulates the up vehicle interior baseband signal to modulate the vehicle interior from the antenna 30. Output a signal. In this high frequency modulation / demodulation circuit 31, as a wireless system,
For example, the Bluetooth method is adopted.

The base band circuit 32 sends out the passenger compartment digital signal to perform base band processing and outputs an up passenger compartment base band signal. In this transmission baseband processing, error correction code addition processing, interleaving processing, and the like are performed on the vehicle interior digital signal. In addition, the baseband circuit 3
Reference numeral 2 receives and demodulates the demodulated signal in the passenger compartment and outputs a received baseband signal in the passenger compartment. In this reception baseband processing, the vehicle interior demodulated signal is subjected to error correction processing, deinterleave processing, and the like.

The control circuit 33 is constituted by including a microcomputer, and performs processing for communicating with the portable telephone 20 and functioning as a hands-free telephone by transmitting and receiving through the baseband circuit 32. The computer program of the control circuit 33 is stored in the ROM 42, and various data associated with the above-described processing is stored in the RAM 42.
It is stored in 43.

The voice circuit 36 is a D / A conversion circuit, A / D
The conversion circuit is included, and the transmission signal from the microphone 35 is analog-digital converted to output a vehicle interior digital signal, and the vehicle interior reception baseband signal is digital-analog converted to output the reception signal to the speaker 34.

The operation unit 37 is composed of normally open switches 37a to 37d to which various functions such as call origination and call termination are assigned. The switch signals of the normally open switches 37a to 37d are waveform-shaped by the level conversion circuit 41 and input to the control circuit 33.

Next, the mobile phone 20 will be described. The mobile phone 20, as shown in FIG.
3, a wireless circuit 500, a speaker 58, a microphone 59, an operation unit 60, and a display 63 are configured. The 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, a voice circuit 57, and a ROM 6.
1 and a RAM 62.

The antenna 50 receives a downlink communication signal from the base station using a radio wave as a medium, and sends an uplink communication signal to the base station using a radio wave as a medium. This antenna 50
Together with a high frequency modulation / demodulation circuit 51 and a baseband circuit 52 described below constitute a wireless device that performs wireless communication with a base station of a communication carrier of the mobile phone 20.

The high frequency modulation / demodulation circuit 51 demodulates the downlink communication signal and outputs the downlink demodulation signal, and also modulates the transmission baseband signal and outputs the uplink communication signal. In the high frequency modulation / demodulation circuit 51, for example, a W-CDMA system or the like is adopted as a wireless system.

The baseband circuit 52 outputs from the audio circuit 57 via the control circuit 56 and the baseband circuit 55.
From the output via the control circuit 56, one or both outputs are subjected to transmission baseband processing to output a transmission baseband signal. The baseband circuit 52 also performs reception baseband processing on the downlink demodulated signal of the high frequency modulation / demodulation circuit 51 and outputs a reception baseband signal.

Here, when a call is made using the speaker 58 and the microphone 59 of the mobile phone 20, the output of the voice circuit 57 is subjected to transmission baseband processing at the time of transmission, and the reception baseband processing signal is received at the time of reception. Sent to 57. Further, when performing a hands-free call, the output of the baseband circuit 55 is subjected to transmission baseband processing at the time of transmission, and the reception baseband signal is transmitted to the baseband circuit 55 at the time of reception.

The high frequency modulation / demodulation circuit 54 demodulates the up-vehicle interior signal received by the antenna 53 and outputs an up-vehicle interior demodulation signal, and also modulates the vehicle interior baseband signal from the baseband circuit 55 to descend the vehicle. The indoor signal is transmitted from the antenna 53.

The baseband circuit 55 outputs the received baseband signal from the baseband circuit 52 by performing baseband processing and outputs a vehicle interior baseband signal.
The in-vehicle demodulated signal from the high frequency modulation / demodulation circuit 54 is subjected to reception baseband processing and a reception baseband processed signal is output.

The antenna 53, together with the high frequency modulation / demodulation circuit 54 and the baseband circuit 55, constitutes a low power radio device for performing radio communication with the in-vehicle handsfree device 10.

The control circuit 56 is configured to include a microcomputer, and communicates with the base station or the vehicle-mounted hands-free device 10 by transmitting and receiving via the baseband circuit 52 or 55 to function as a normal telephone or a hands-free telephone. The processing for performing the above is performed. In addition,
The computer program of the control circuit 56 is stored in the ROM 61.
The various data stored in the
It is stored in the RAM 62.

The voice circuit 57 is a baseband circuit 52,
One of the reception baseband signals of 55 is digital-analog converted, and the reception signal is output to the speaker 58. Here, when a call is made with the speaker 58 and the microphone 59, the reception baseband signal of the baseband circuit 52 is sent to the audio circuit 57. Further, when a hands-free call is made, the received baseband signal of the baseband circuit 55 is sent to the voice circuit 57.

As shown in FIG. 4, the operation unit 60 has a level conversion circuit 60A and normally open switches 600 to 620. The level conversion circuit 60A is a normally open switch 600-
Control circuit 5 by shaping the waveform of each switch signal from 620
Output to 6. Further, the normally-open switches 600 to 620 are pressed to output switch signals. here,
The normally open switches 600 to 620 are individually provided with “off hook”, “on hook”, “redial”, and a numeral “1”.
~ "9", symbol ">", "<", "mail", "F",
Functions such as "clear", "memo", etc., such as calls and mails, are assigned.

The operation of this embodiment will be described below with reference to FIGS.
Will be explained. The wireless connection process 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 each mode will be described below.

(Incoming Call Mode) Control Circuit 5 of Mobile Phone 20
6 executes the computer program according to the flowcharts shown in FIGS.

The computer program starts the processing shown in FIG. 5 when it receives an incoming call signal (incoming signal) from the base station during standby.

First, step (hereinafter referred to as S) 100
At, a wireless connection availability inquiry signal is sent to the vehicle-mounted hands-free device 10. The inquiry signal includes incoming call information and incoming call sound information (incoming call melody).

Next, it is determined whether or not a response signal indicating whether or not wireless connection is possible has been received (S110). When the reply signal is received, it is determined based on the reply signal whether or not the in-vehicle handsfree device 10 has permitted the wireless connection (S12).
0).

When the in-vehicle hands-free device 10 determines that the wireless connection is permitted, a message "Hands-free talking button does not work" is displayed on the display 63 as shown in FIG. 7 (S130). ). further,
Reception of all operations of the normally open switches 600 to 620 is prohibited (S140).

Next, an off-hook signal, which will be described later, is received from the vehicle-mounted hands-free device 10 and the off-hook signal is sent to the base station (S150). When the off-hook signal is sent to the base station, the telephone line connection is established.

When a downlink communication signal from the base station is received, the downlink communication signal is sent as a downlink vehicle interior signal to the vehicle-mounted hands-free device 10, and when an upward vehicle interior signal is received from the vehicle-mounted hands-free device 10. This in-vehicle signal is sent to the base station as an upstream communication signal (S160).

Next, it is determined whether or not the vehicle interior end signal is received from the in-vehicle hands-free device 10 (S200).
The in-vehicle end call signal is transmitted from the vehicle-mounted hands-free device 10 when the end call operation is performed. Then, when the vehicle interior end signal is received, the end signal is sent to the base station (S210).

When it is determined in S120 that the wireless connection is not permitted by the in-vehicle hands-free device 10, a normal function display (for example, received electric field strength, display of clock, etc.) is displayed on the display 63. Let (S
220). Further, acceptance of operations relating to calls and mails to the normally open switches 600 to 620 is started (S).
230).

Next, details of the wireless connection processing of the vehicle-mounted hands-free device 10 will be described with reference to FIG. Control circuit 33
Executes the computer program according to the flowchart shown in FIG.

First, when a wireless connection inquiry signal is received from the mobile phone 20 in S300, a reply signal of the inquiry signal is sent to the mobile phone 20 (S31).
0). This reply signal includes information indicating whether or not the wireless connection is permitted. For example, based on the vehicle speed detected by a vehicle speed sensor (not shown), wireless connection is permitted when the vehicle is moving, and wireless connection is not permitted when the vehicle is stopped. As a result, a call using the speaker 58 and the microphone 59 of the mobile phone 20 can be prevented when the automobile is moving.

When the reply signal for permitting the wireless connection is sent in the process of S310, the process proceeds from S320 to S330, and the signal for causing the speaker 34 to ring the ring tone is output to the voice circuit 36. It should be noted that the wireless connection between the mobile phone 20 and the in-vehicle hands-free device 10 is started by sending the reply signal permitting the wireless connection to the mobile phone 20.

Then, 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 Y
It becomes ES and sends an off-hook signal to the mobile phone 20 (S350). Then, in order to carry out a hands-free call, when a downlink vehicle interior signal is received from the mobile phone 20, the received voice is output from the speaker 34,
Further, when the transmission signal is input from the microphone 35 through the voice circuit 36, the up-vehicle interior signal is transmitted to the mobile phone 20 (S360).

After that, while the switch 37a is not pressed, the processes of S360 and S380 are repeated to continue the hands-free call. Then, when the user presses the switch 37a to end the call, an in-vehicle end call signal is sent to the mobile phone 20 (S390).

(Call Mode) In this call mode, the in-vehicle hands-free device 10 is switched from the call using the speaker 58 and the microphone 59 while the call using the speaker 58 and the microphone 59 of the mobile phone 20 is being performed. It is to switch to the hands-free phone call.

The wireless connection processing of the control circuit 56 of the mobile phone 20 in this call mode is shown in FIGS. In FIGS. 9 and 10, the same reference numerals as those in FIGS.
The same processing is shown. This wireless connection processing is executed in a time-sharing manner with the call processing (call using the speaker 58 and the microphone 59).

First, in S100, an inquiry signal is sent to the in-vehicle hands-free device 10. Cell phone 20
When the vehicle receives a reply signal indicating permission of wireless connection from the vehicle-mounted hands-free device 10, the message is displayed on the display 63 as in the case of the incoming call mode (S130).
Reception of all operations of the normally open switches 600 to 620 is prohibited (S140), a process for making a hands-free call (S160), and reception determination of a vehicle interior end signal (S2).
10) is performed.

The in-vehicle hands-free device 10 is shown in FIG.
The wireless connection process shown in 1 is performed. In FIG. 11,
The same reference numerals as those in FIG. 8 indicate the same processing.

When a wireless connection inquiry signal is received from the mobile phone 20 in S300, a reply signal of the inquiry signal is sent to the mobile phone 20 (S310). When the reply signal for permitting the wireless connection is sent, the process for making a hands-free call (S360), the end call determination (S380), and the end call signal of the passenger compartment (S390), as in the case of the incoming call mode. I do.

(On-vehicle calling mode) In this on-vehicle calling mode, wireless connection is established when a calling operation is performed by the on-vehicle hands-free device 10.

FIG. 12 shows the wireless connection processing of the in-vehicle hands-free device 10 in this in-vehicle calling mode. 12
8, the same reference numerals as those in FIG. 8 indicate the same processing. This wireless connection process is executed when the power is on.

First, when a wireless connection inquiry signal is received from the mobile phone 20 in S300, a reply signal of the inquiry signal is sent to the mobile phone 20 (S31).
0). When the reply signal permitting the wireless connection is transmitted, it is determined whether or not the call operation is performed by the switches 37a to 37d (S400).

When it is determined that the calling operation is performed by the switches 37a to 37d, the vehicle interior calling signal (including the abbreviated number) is sent to the portable telephone 20 (S4).
20). After this, similarly to the processing in the incoming call mode, processing for making a hands-free call (S360), call termination determination (S380), and transmission of the vehicle interior termination signal (S390) are performed.

Further, the control circuit 56 of the mobile phone 20 performs the wireless connection processing shown in FIGS. 13 and 14. 13 and 1
4, the same reference numerals as those in FIGS. 5 and 6 indicate the same processing.

First, as in the case of the incoming call mode, when the inquiry signal is sent (S100) and the reply signal indicating the permission of the wireless connection is received (S120), the in-vehicle hands-free call is made. It is determined whether or not a signal is received. When it is determined that the vehicle interior calling signal is received,
Since the calling signal is sent to the base station (S250), the calling signal is sent to the base station and the telephone line connection is started.

Thereafter, as in the case of the incoming call mode,
A process for displaying a message on the display 63 (S130), prohibiting reception of all operations of the normally-open switches 600 to 620 (S140), and performing a hands-free call (S)
160) and reception determination of the end-of-car signal in the vehicle interior (S20
0, S210).

Next, the features of this 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. As a result, it is possible to prohibit the operation of the normally open switches 600 to 620 related to the call.

Therefore, it is possible to prevent the driver from performing an operation related to a call on the operation unit of the mobile phone. As a result,
It is no longer 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 confusing when selecting one of the operation units. Therefore, the driver can concentrate on driving and can drive satisfactorily.

Further, in the above embodiment, the mobile phone 20 is used.
Explained an example in which an operation related to a call is prohibited during a hands-free call being wirelessly connected to the vehicle-mounted hands-free device 10, but the invention is not limited to this, and the vehicle speed is less than a predetermined speed. Then, as shown in FIG. 15 and FIG. 16, only the reception of the operation related to the end of the call may be permitted when the hands-free call is made by wireless connection.

In this case, the mobile phone 20 is as follows.
Permits reception of a calling operation and a switching operation to a hands-free call when wirelessly connected to the vehicle-mounted hands-free device 10.

First, an inquiry signal as to whether or not wireless connection is possible is sent to the vehicle-mounted hands-free device 10 (S100). Here, the vehicle-mounted hands-free device 10 permits wireless connection based on the output of a vehicle speed sensor (not shown) when the vehicle speed is lower than a predetermined speed.

After that, when the reply signal indicating the permission of the wireless connection is received from the in-vehicle hands-free device 10 (S110,
(S120), it is determined whether or not a calling operation is performed by the normally open switches 600 to 620 (S260). When it is determined that the calling operation is performed, a calling signal is sent to the base station. After that, a calling signal is sent to the base station to start the telephone line connection.

After that, when the downlink communication signal from the base station is received, the received voice is output from the speaker 58 based on the downlink communication signal. Further, an upstream communication signal is transmitted to the base station based on the output signal of the voice circuit 57 (S160).
A). As a result, the speaker 58 in the mobile phone 20
A call is made using the microphone 59. After that, it is determined whether or not the operation for switching to the hands-free call is performed by the normally open switches 600 to 620 (S270).

Here, when it is determined that the operation for switching to the hands-free call is 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 normal operation is performed. Open type switch 600-620
The reception of all the operations of (1) is prohibited (S140), the process for making a hands-free call (S160), and the reception judgment of the vehicle interior end signal (S200, S210) are performed.

When it is determined in S270 that the operation for switching to the hands-free call is not performed, it is determined whether the end call key is pressed (S280). Then, until the end call key is pressed, the process returns to S160A, and the mobile phone 20 continues the call using the speaker 58 and the microphone 59.

[Brief description of 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.

FIG. 2 is a block diagram showing a configuration of an electric circuit configuration of the vehicle-mounted hands-free device shown in FIG.

3 is a block diagram showing a configuration of an electric circuit configuration of the mobile phone shown in FIG.

FIG. 4 is a diagram showing details of an operation unit shown in FIG.

5 is a flowchart showing a part of the operation of the mobile phone shown in FIG.

FIG. 6 is a flowchart showing a part of the operation of the mobile phone shown in FIG.

FIG. 7 is a diagram showing a display example of the mobile phone shown in FIG.

FIG. 8 is a flowchart showing a part of the operation of the vehicle-mounted hands-free device shown in FIG.

9 is a flowchart showing a part of the operation of the mobile phone shown in FIG.

FIG. 10 is a flowchart showing a part of the operation of the mobile phone shown in FIG.

11 is a flowchart showing a part of the operation of the vehicle-mounted hands-free device shown in FIG.

12 is a flowchart showing a part of the operation of the vehicle-mounted hands-free device shown in FIG.

13 is a flowchart showing a part of the operation of the mobile phone shown in FIG.

FIG. 14 is a flowchart showing a part of the operation of the mobile phone shown in FIG.

FIG. 15 is a flowchart showing a part of the operation of the mobile phone shown in FIG.

16 is a flowchart showing a part of the operation of the mobile phone shown in FIG.

[Explanation of symbols]

10 ... In-vehicle hands-free device, 20 ... Mobile phone, 600
To 620 ... Switch of mobile phone.

Claims (10)

[Claims] 1. A hands-free call having a mobile phone (20) having an operation unit (60) for accepting an operation related to a call and an in-vehicle operation unit (37a to 37d) and being wirelessly connected to the mobile phone. An in-vehicle hands-free device (10) for carrying out a call, and the mobile phone is prohibited from accepting an operation of the operation unit (60) related to the call when wirelessly connected to the in-vehicle hands-free device. An in-vehicle hands-free call system having a prohibiting means (S140) for 2. The in-vehicle hands-free call system according to claim 1, wherein the operation of the operation unit related to the call is an end call operation. 3. The in-vehicle hands-free call system according to claim 1, wherein the operation of the operation unit related to the call is a call operation. 4. The operation of the operation unit related to the telephone call is an operation of receiving a telephone call.
The in-vehicle hands-free call system according to any one of 1. 5. A mobile phone capable of making a hands-free call by the in-vehicle hands-free device by wirelessly connecting to an in-vehicle hands-free device (10) and an operation unit (60) that receives an operation related to a call. When wirelessly connected to the in-vehicle hands-free device,
A mobile phone having a prohibition unit (S140) for prohibiting reception of an operation of the operation unit related to the call. 6. A transmission unit (S100) for transmitting a transmission signal for inquiring the in-vehicle hands-free device about the permission of the wireless connection, and a permission signal indicating permission of the wireless connection transmitted from the in-vehicle hands-free device. And a determination unit (S110, S120) for determining whether or not it has been received. When the determination unit determines that the permission signal has been received, the prohibition unit determines whether or not the operation of the operation unit related to the call is performed. The mobile phone according to claim 5, wherein reception is prohibited. 7. The mobile phone according to claim 6, wherein the transmitting unit transmits the transmission signal to inquire permission of the wireless connection when receiving a call. 8. The mobile phone according to claim 6, wherein the transmission unit transmits the transmission signal to inquire permission of the wireless connection during a call. 9. An operation determination means (S24) for determining whether or not a call operation is performed by the in-vehicle handsfree device.
0), and when the permission determination means determines that the permission signal is received and the operation determination means determines that the in-vehicle handsfree device has performed a call operation, the prohibition means 7. The mobile phone according to claim 6, wherein the mobile phone prohibits reception of an operation of the operation unit related to the call. 10. A means for inquiring the in-vehicle hands-free device (10) about permission of wireless connection; and a wireless connection permission of the wireless connection of the mobile phone with the in-vehicle hands-free device when permission of wireless connection is obtained from the in-vehicle hands-free device. A prohibition means (S) for prohibiting acceptance of an operation of an operation unit related to a call when wirelessly connected to the means for enabling a handsfree call and the in-vehicle handsfree device.
140), a program for operating a computer of a mobile phone.