JPS63115440A - Automobile telephone system - Google Patents

Abstract

PURPOSE:To extremely improve the operability and safety of automobile by holding automatically the calls received from the remote side when the ringing tones are delivered by the prescribed frequency while a vehicle is running. CONSTITUTION:The radio wave signals received from the remote side are demodulated by the receiver 11 of a radio equipment 10 and supplied to a control circuit 21. A counter 22 is actuated if a deciding signal showing the running mode of the automobile is supplied from a run deciding circuit 40. When the count value of the counter 22 reaches a prescribed level, the telephone calls are automatically held. Then the ringing tones of a speaker 26 are stopped and an indicator lamp 25 is flickered to inform a holding state to the driver of the car. The driver stops his/her car in a safe place and picks up a handset to have a normal call with the remote side.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a car telephone device that is capable of notifying the other party that the receiver cannot pick up the telephone by putting a response on hold.

B. Prior Art Conventional car telephones include those shown in FIGS. 3 and 4, for example. FIG. 3 is a block diagram of a conventional car phone, and FIG. 4 is a more specific block diagram of the car phone shown in FIG.

In FIGS. 3 and 4, the conventional car telephone includes a wireless device 1, a telephone 2 connected to the wireless device 1 via a telephone line 01゜a2, and a wireless bag! ! ! 1 and a response hold button 3 connected to the answer hold button 3 via a response hold signal line Q3. (Car phone that turns your car into an office, pamphlet published by the Telegraph and Telephone Public Corporation, June 1984, No. 6)
In this conventional car telephone, a signal from the other party received by the wireless device 1 is transmitted to the telephone set 2 via the telephone line Q1 to generate a ringing tone. When the driver of the car is unable to pick up the receiver, when the driver presses a response hold button 3, the other party can be notified of the hold. For example, by operating the response hold button 3, a response hold signal is output, a telephone line is once connected, and a voice on hold is generated.

Problems to be Solved by the C0 Invention However, in such conventional car telephones, when there is an incoming call, a response hold signal is not output unless the answer hold button 3 is pressed.

There was a problem in that it was difficult to operate while the car was running. In particular, depending on the position where the response hold button 3 is installed, it may be difficult to operate it. Another problem was that it took time and effort to set up the harness and buttons.

The present invention has been made in view of these conventional problems, and aims to solve the above problems by automatically putting a response on hold when a call signal occurs several times while driving. .

Means for solving the D0 problem The above problem consists of a discriminating means for discriminating whether the vehicle is running or not, and a call signal that is emitted by a predetermined method when the discriminating means determines that the vehicle is running. This can be solved by providing a response suspension signal output means that counts the number of times and outputs a response suspension signal.

81 action determining means determines whether the vehicle is currently running or not. When it is determined that the vehicle is running, the number of call signals is counted. When the calling signal is counted a predetermined number of times, a response hold signal is output, the call from the other party is automatically put on hold, and, for example, a message is sent to the other party to the effect that the answer is on hold.

For example, after stopping the vehicle, the driver of the vehicle can pick up the receiver and have a normal conversation.

F. Embodiment FIG. 1 is a schematic diagram showing an embodiment of a car telephone device according to the present invention, and the same parts as in FIG. 3 are denoted by the same reference numerals. This car phone device includes a wireless device 1
0, a telephone set 20 with an automatic response hold function connected to this wireless device 10 by telephone lines QL, Q2 and a response hold signal line Q3, a vehicle speed sensor 30 that outputs a signal according to the vehicle speed, and a vehicle speed sensor 30 that outputs a signal according to the vehicle speed. It also includes a determination circuit 40 that determines whether or not the vehicle is running.

As shown in FIG. 2, the wireless device 10 includes a receiver 11 that demodulates a signal received by an antenna and outputs the demodulated signal to a telephone 20.
and a transmitter 1 that modulates and outputs the signal from the telephone 20.
2, and a voice synthesizer 13 that synthesizes a voice indicating that a response is on hold based on a response hold signal from the telephone 2o and outputs the synthesized voice to the transmitter 12. Telephone with automatic answer hold function 2
0 is the telephone line Q1. A control circuit 21 that is connected to Q2 and response hold signal line Q3 and is also connected to the driving determination circuit 40 and includes a microprocessor and controls various operations of the telephone, and a counter 22 that counts telephone ringing signals from the control circuit 21. , a switch drive circuit 23 that operates when the counter 22 reaches a predetermined count value, and a response hold switch 2 that is driven by the switch drive circuit 23.
4, an indicator lamp 25 and a speaker 26 which are connected to the control circuit 21 and automatically indicate that the hold has been placed. The speaker 26 generates a ringing sound from the other party, and also generates a warning sound at preset intervals so that the driver does not forget that the vehicle is on hold when the vehicle is on hold.

In the embodiment with the above configuration, the vehicle speed sensor 30 and the driving determination circuit 40 serve as the driving determination means, and the control circuit 21. Counter 22. Switch drive circuit 23゜Response pending switch 2
4 constitutes a response holding means.

The operation of the mobile phone configured as described above will be explained next.

First, the receiver 11 of the wireless device 10 demodulates a received radio signal from the other party, shapes its waveform, and then inputs it to the control circuit 21 of the telephone 20 .

The control circuit 21 supplies a signal to the speaker 26 based on the calling signal from the other party to generate a ringing tone. At this time, if a discrimination signal indicating that the car is running is inputted to the control circuit 21 from the running discrimination circuit 4o, the counter 22 is activated and is incremented by 1 each time a call signal is generated. . When the count value of the counter 22 reaches a predetermined value, for example 5, the switch drive circuit 23 is activated, turns on the switch 24, and sends a response hold signal to the control circuit 21.

As a result, the control circuit 21 automatically puts the telephone call from the other party on hold, stops the ringing sound from the speaker 26, and lights up the indicator lamp 25 to notify the driver of the hold state. The control circuit 21 also controls the response hold signal line Q.
3, the voice synthesizer 13 in the wireless device 10 is activated, and a message is sent to the other party via the transmitter 12 to the effect that the response is on hold. In order to prevent the driver from forgetting the hold state, the control circuit 21 causes the speaker 26 to generate a warning sound at preset intervals even after stopping the ringing sound.

The driver can stop the car in a safe place, pick up the handset, and talk to the other party as normal.

As described above, in this embodiment, when the vehicle speed sensor 30 and the running determination circuit 40 determine that the vehicle is running, the counter 22 counts the call signals.
Since calls from the other party can be automatically put on hold when a predetermined number of calls are reached, the driver does not need to press a hold button while driving, and operability can be significantly improved.

In the above-described embodiment, the vehicle speed sensor 30 detects that the vehicle is running, but it may be detected whether the vehicle is running or not using a combination of a parking brake and an inhibitor switch. Further, the output signal of the counter 22 is used as a response hold signal, and the switch drive circuit 2
3. The switch 24 may be omitted.

G0 Effects of the Invention As explained above, according to the present invention, when the ring tone is heard a predetermined number of times while the vehicle is running, the call from the other party is automatically put on hold, which improves the operability of the vehicle. , safety is significantly improved. Furthermore, there is no need to attach a response hold switch or route its wiring as in the conventional case.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of an embodiment of a car phone device according to the present invention, FIG. 2 is a detailed configuration diagram of the car phone device shown in FIG. 1, and FIG. 3 is a configuration diagram of a conventional car phone device. , 4th
The figure is a perspective view showing the appearance of the car phone shown in FIG. 10: Wireless device 20: Telephone with automatic answer hold function 21: Control circuit 22: Counter 23: Switch drive circuit 24: Switch 25: Indicator lamp 26:
Speaker 3o: Vehicle speed sensor 40: Driving discrimination circuit Patent applicant: Nissan Motor Co., Ltd. Representative patent attorney: Fuyu Nagai, Tashiyu Kinpo

Claims (1)

[Scope of Claims] A car telephone device capable of holding a response by a response hold signal when a call signal is input, comprising: a determining means for determining whether a vehicle is running; and a determining means that determines whether the vehicle is running. 1. A car telephone device comprising: a response hold signal output means that counts the ringing signal a predetermined number of times and outputs a response hold signal when it is determined that the call signal is the same.