JP2002335584A - Incoming call controller of radio communication terminal equipment and on-vehicle radio communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely assure safety when driving. SOLUTION: An on-board unit 4 detects the presence of a portable telephone terminal 3 in the vehicle according to a radio wave to the equipment 2 when a user carries the terminal 2 in the vehicle, detects the driving when the user drives, and controls to execute hands-free receiving by a hands-free unit 21 when called. When the driving is executed even when the user does not connect the terminal 2 to the unit 21, the unit 4 can execute hands-free receiving. When the unit 4 responds to the call, the unit 4 can execute hands-free speaking. Thus, the state in which the user drives while speaking by carrying the terminal 2 at his hand can be avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an incoming call control device for controlling an incoming call of a wireless communication terminal and an in-vehicle wireless communication system.

[0002]

In recent years, driving a car while holding a portable telephone terminal in a telephone conversation has become a social problem. Therefore, a hands-free device is provided for the purpose of ensuring safety during driving. According to this, the user can make a hands-free call by connecting the mobile phone terminal to the hands-free device, and after answering the call, can make a hands-free call thereafter. You can talk while holding the handle without holding the telephone terminal.

[0003] An object of the present invention is to secure confidentiality such that it is possible to accurately ensure safety during driving and, on the other hand, to prevent a passenger from hearing the contents of a call. It is an object of the present invention to provide a wireless communication terminal incoming call control device and an in-vehicle wireless communication system that can be secured.

[0004]

According to the incoming call control device of the wireless communication terminal, the control means identifies whether or not the caller telephone number is a specific telephone number registered in advance. If the caller's phone number is not a specific phone number registered in advance, the hands-free device is controlled to execute a hands-free call, and the specific phone number in which the caller phone number is registered in advance is used. In the case of, the wireless communication terminal is controlled to execute the handset incoming call.

[0005] That is, according to this, if the caller's telephone number is not a specific telephone number registered in advance, a hands-free incoming call can be made, so that safety during driving can be properly secured. it can. On the other hand, if the caller's telephone number is a specific telephone number registered in advance, a handset call can be received, and if the call is answered, a handset call can be made thereafter. Confidentiality can be ensured, for example, it is possible to prevent the passengers from hearing the contents of the information.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) Hereinafter, a first embodiment according to claims 1 to 5 of the present invention will be described.
This will be described with reference to FIGS. First, in FIG. 1, an in-vehicle wireless communication system 1 includes a mobile phone terminal 2 (a wireless communication terminal according to the present invention) that can be carried by a user and an in-vehicle unit 4 (a wireless communication terminal according to the present invention) mounted on an automobile 3. Incoming call control device). In the mobile phone terminal 2, the control circuit 5 connects the communication network wireless circuit 6, the local wireless circuit 7, and the voice input / output circuit 8, and includes a call start key, a redial key, a call end / power key, Keypad 9 and display 1 in which various keys such as numeric keys “0” to “9” are arranged
0 is connected.

The communication network radio circuit 6 is connected to the antenna 11 and executes a radio communication process with the base station 12 based on a control command from the control circuit 5. Local radio circuit 7
Is connected to the antenna 13 and executes a wireless communication process with the in-vehicle unit 4 based on a control command from the control circuit 5. The voice input / output circuit 8 is connected to the microphone 14 for inputting the transmitted voice and the speaker 15 for outputting the received voice, and executes voice processing.

[0010] The keypad 9 outputs a key operation signal indicating a key operation to the control circuit 5. When the key operation signal is input from the keypad 9, the control circuit 5 decodes the input key operation signal. Then, the control circuit 5 causes the display 10 to display the display information according to the display command by outputting the display command to the display 10.

On the other hand, in the on-vehicle unit 4, the control circuit 16 (control means in the present invention) includes a local radio circuit 17.
(Presence detecting means in the present invention) and vehicle speed detecting circuit 18
Each circuit of (vehicle speed detecting means in the present invention) is connected.

The local radio circuit 17 is connected to an antenna 19 and executes a radio communication process with the portable telephone terminal 2 based on a control command from the control circuit 16. When a sensor signal is input from the vehicle speed sensor 20, the vehicle speed detection circuit 18 outputs a vehicle speed signal indicating the vehicle speed to the control circuit 16 based on the input sensor signal, and the control circuit 16 outputs the vehicle speed signal from the vehicle speed detection circuit 18. When input, the input vehicle speed signal is decoded.

The hands-free device 21 includes, for example, a microphone disposed in a steering cover, a speaker disposed in a door, various switches disposed in a steering wheel, a display for displaying an operation screen, and the like. In this case, a hands-free incoming call is executed based on a control command from the control circuit 16, and when a response is made to the incoming call, hands-free communication is executed. In this case, the hands-free device 21 includes the in-vehicle unit 4 and the mobile phone terminal 2.
The mobile phone terminal 2 is relayed by transmitting a radio wave between the mobile phone terminal 2 and a hands-free incoming call is executed.

Now, in this configuration, the on-vehicle unit 4
Detects whether the mobile phone terminal 2 is present in the vehicle as follows. That is, the in-vehicle unit 4
The control circuit 16 outputs a control command to the local wireless circuit 17 so that the local wireless circuit 17 transmits a weak calling radio wave at a predetermined cycle (for example, once every several seconds).

Here, if the portable telephone terminal 2 is present in the vehicle, the portable telephone terminal 2 receives the calling radio wave transmitted from the on-vehicle unit 4, so that the control circuit 5 of the portable telephone terminal 2 is used. Outputs a control command to the local radio circuit 7 upon detecting that a paging radio wave has been received,
The local radio circuit 7 transmits a weak response radio wave, and the in-vehicle unit 4 receives the response radio wave transmitted from the mobile phone terminal 2 accordingly. In this way,
The control circuit 16 of the in-vehicle unit 4 can detect that the mobile phone terminal 2 is present in the vehicle by receiving the response radio wave transmitted from the mobile phone terminal 2.

On the other hand, if the mobile telephone terminal 2 is not present in the vehicle, the mobile telephone terminal 2
It does not receive the ringing radio wave transmitted from, and does not transmit the response radio wave. Thus, the control circuit 16 of the vehicle-mounted unit 4 can detect that the mobile phone terminal 2 is not present in the vehicle by not receiving the response radio wave from the mobile phone terminal 2.

In this case, when the portable telephone terminal 2 is present in the vehicle, the portable telephone terminal 2 and the on-vehicle unit 4 superimpose information (data) on a radio wave communicated between them. It is possible to identify information held by the other party. That is, the mobile phone terminal 2 can identify various types of information held by the in-vehicle unit 4 as necessary, while the in-vehicle unit 4 can identify various types of information held by the mobile phone terminal 2. Information can be identified as needed.

Next, the operation of the above configuration will be described with reference to FIG.
This will be described with reference to the flowchart shown in FIG.
First, as shown in FIG.
6 detects whether or not the mobile phone terminal 2 is present in the vehicle by detecting whether or not the local radio circuit 17 is receiving a response radio wave (step S1). here,
When the control circuit 16 detects that the mobile phone terminal 2 is present in the vehicle by detecting that the local radio circuit 17 is receiving the response radio wave, the control circuit 16 determines “YES” in step S1.

Next, the control circuit 16 controls the vehicle speed detection circuit 1
8 to detect whether the vehicle is driving or not by detecting whether the vehicle speed exceeds a predetermined speed (here, 0 km / h) (step S).
2). Here, when the control circuit 16 detects that the vehicle speed exceeds a predetermined speed and detects that the vehicle is driving,
It is determined "YES" in step S2.

Next, the control circuit 16 outputs a control command to the local radio circuit 17 and communicates radio waves between the on-vehicle unit 4 and the portable telephone terminal 2, and the portable telephone terminal 2
(Step S)
3). Here, when detecting that the mobile phone terminal 2 has received the incoming signal from the base station 12, the control circuit 16 determines “YES” in step S3, outputs a control command to the hands-free device 21, and outputs a control command to the hands-free device 21. A hands-free incoming call is executed by the device 21 (step S4).

In this way, when the user operates the mobile phone 2
Can be received without connecting to the hands-free device 21, and when answering the incoming call, a hands-free call can be made.

In the above description, a configuration is described in which a caller telephone number is not identified, that is, a hands-free incoming call is executed regardless of the caller telephone number. By doing so, it can be configured to select whether or not to execute a hands-free incoming call according to the caller telephone number. More specifically, a hands-free call may be executed on condition that the caller telephone number is not a specific telephone number registered as a memory dial telephone number in the mobile telephone terminal 2.

That is, as shown in FIG.
6 detects that the mobile phone terminal 2 has received the incoming signal from the base station 12, in step S 3, “YE
S ", and extracts the caller telephone number from the incoming signal (step S11).

The control circuit 16 compares the extracted caller telephone number with a specific telephone number registered as a memory dial telephone number in the portable telephone terminal 2 and stores the extracted caller telephone number in the memory. It is determined whether the telephone number is a specific telephone number registered as a telephone number for dialing (step S12).

If the extracted caller telephone number is not a specific telephone number registered as a telephone number for memory dialing, the control circuit 16 determines "NO" in step S12, and sends the control command to the hands-free operation. Device 21
And causes the hands-free device 21 to execute a hands-free incoming call (step S4).

On the other hand, if the extracted caller telephone number is a specific telephone number registered as a telephone number for memory dialing, the control circuit 16 determines "YES" in step S12 and issues a control command. To the local radio circuit 1
7 to cause the mobile phone terminal 2 to execute a handset termination (step S13).

In this way, when the user sets the mobile phone terminal 2
Even if is not connected to the hands-free device 21, if the caller's telephone number is not a specific telephone number registered as a telephone number for memory dialing, a hands-free call can be received. You can make hands-free calls. On the other hand, if the caller's telephone number is a specific telephone number registered as a telephone number for memory dialing, a handset call can be received, and if the call is answered, a handset call can be made.

Conversely, a hands-free call may be executed on condition that the caller's telephone number is a specific telephone number registered as a memory dial telephone number in the mobile telephone terminal 2. It can also be configured.

That is, as shown in FIG.
6. If the extracted caller telephone number is a specific telephone number registered as a telephone number for memory dialing, it is determined to be "YES" in step S21, a control command is output to the hands-free device 21, and a hands-free operation is performed. Free device 21
(Step S)
4).

On the other hand, if the extracted caller telephone number is not a specific telephone number registered as a memory dial telephone number, the control circuit 16 proceeds to step S21.
Is determined to be “NO”, and the control command is
7 so that the incoming call is rejected by the mobile phone terminal 2 (step S22).

In this way, when the user operates the mobile phone 2
Even if is not connected to the hands-free device 21, if the caller's phone number is a specific phone number registered as a phone number for memory dialing, a hands-free call can be received. You can make hands-free calls. On the other hand, if the caller's telephone number is not a specific telephone number registered as a telephone number for memory dialing, the incoming call can be rejected.

As described above, according to the first embodiment, when the user brings the portable telephone terminal 2 into the vehicle, it is detected that the portable telephone terminal 2 is present in the vehicle.
When the user drives, it is detected that the user is driving and when receiving a call, the hands-free device 21 is configured to execute a hands-free call. Hands-free device 2
Even if the terminal 1 is not connected, a hands-free call can be received while the vehicle is driving, and after answering the call, a hands-free call can be made thereafter. This makes it possible to avoid a situation in which the user drives the mobile phone terminal 2 while talking while holding the mobile phone terminal 2 in his / her hand, and it is possible to accurately ensure safety during driving.

On the condition that the caller telephone number is not a specific telephone number registered as a memory dial, the hands-free device 21 executes a hands-free call, while the caller telephone number is registered as a memory dial. If the mobile phone terminal 2 is configured to execute a handset call on the condition that the phone number is a specific phone number, the caller phone number is not a specific phone number registered as a memory dial. In the same manner as described above, it is possible to ensure safety while driving, while if the caller's phone number is a specific phone number registered as a memory dial, for example, Confidentiality can be ensured, for example, it is possible to avoid being heard by others.

On the condition that the caller telephone number is a specific telephone number registered as a memory dial, the hands-free device 21 executes a hands-free call, while the caller telephone number is a memory dial. If it is configured to reject incoming calls on condition that it is not a registered specific telephone number, if the caller telephone number is a specific telephone number registered as a memory dial, the same as above In addition, it is possible to ensure the safety during driving accurately.On the other hand, if the caller's telephone number is not a specific telephone number registered as a memory dial, the user cannot make a call, but in the same manner as described above, It is possible to prevent a situation in which the user drives the phone terminal 2 while talking while holding the telephone terminal 2 in his / her hand. It can be ensured.

Further, when the hands-free device 21 executes a hands-free call, the portable telephone terminal 2 is relayed by communicating radio waves between the vehicle-mounted unit 4 and the portable telephone terminal 2. By using the communication network wireless circuit 6 of the mobile phone terminal 2, there is no need to provide the hands-free device 21 with a dedicated communication network wireless circuit for executing a hands-free incoming call, so that resources can be effectively used. Thus, the size and cost of the apparatus can be reduced.

(Other Embodiments) The present invention is not limited to the above embodiment, but can be modified or expanded as follows. The wireless communication terminal is not limited to a mobile phone terminal, but may be a car phone terminal. A configuration may be adopted in which infrared communication is adopted between the mobile phone terminal and the vehicle-mounted unit.

When detecting whether or not the vehicle is driving, the state of the side brake may be detected by a side brake detection circuit. It is not limited to a configuration that selects whether or not to execute a hands-free call depending on whether or not the caller telephone number is a telephone number registered as a memory dial. A configuration for selecting whether or not to execute a hands-free incoming call depending on whether or not the telephone number is stored may be employed.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing an electrical configuration of a first embodiment of the present invention.

FIG. 2 is a flowchart showing control contents.

FIG. 3 is a diagram corresponding to FIG. 2;

FIG. 4 is a diagram corresponding to FIG. 2;

FIG. 5 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.

FIG. 6 is a view corresponding to FIG. 1 showing a third embodiment of the present invention.

[Explanation of symbols]

In the drawings, 1 is an in-vehicle wireless communication system, 2 is a mobile phone terminal (wireless communication terminal), 4 is an in-vehicle unit (an incoming call control device of a wireless communication terminal), 16 is a control circuit, 21 is a hands-free device, and 31 is an in-vehicle wireless device. A communication system, 32 is a mobile phone terminal (wireless communication terminal), 34 is an in-vehicle unit (control device of the wireless communication terminal), and 35 is a mobile phone terminal connection detection circuit (connection detection means).

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Claims (2)

[Claims] An incoming call to a wireless communication terminal is identified, and whether or not a caller's telephone number is a specific telephone number registered in advance is identified. If it is not a telephone number, control the hands-free device to execute a hands-free call, and if the caller's telephone number is a specific telephone number registered in advance, the wireless communication terminal executes a handset call An incoming call control device for a wireless communication terminal. 2. An in-vehicle wireless communication system comprising the wireless communication terminal and the control device for a wireless communication terminal according to claim 1.