JPS6083438A - Car telephone set - Google Patents

Abstract

PURPOSE:To allow a driver to concentrate on driving by providing a car telephone set with a means which inhibits incoming reception during a backward run. CONSTITUTION:When a gear for backward running is changed to a backward run position, a backward run detector 10 outputs an H-level signal, and an NOT gate 42 converts the signal into an L-level signal, which is inputted to an OR gate 44. Consequently, the OR gate 44 outputs the L-level signal to a transistor (TR)46, which turns off. Consequently, a relay coil 48 is fed with no electricity and a contact 49 is still broken; and no electric power is supplied from +B to a power source part 224 and the car telephone set 200 is disabled to be used.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a car telephone device. For more information,
This invention relates to a car phone device that prohibits a driver from using a car phone while the car is in reverse.

[Prior Art] Conventionally, a car telephone device could generally be used at any time regardless of the driving condition of the car.

For this reason, while driving in reverse, the vehicle was sometimes called with a ringtone (ringing tone).

Therefore, there was a problem in that the driver was distracted by the car phone and could not concentrate on driving.

[Object of the Invention] The present invention has been made in view of the above-mentioned points, and its object is to operate a prohibition means by detecting the backward movement of a car, thereby prohibiting at least incoming calls from a car phone, thereby disabling driving. The object of the present invention is to provide a car telephone device that costs less than 1q.

[Configuration of the Invention] The configuration of the present invention for achieving the above object is as shown in FIG.
, a communication means 200' connected to a subscriber line via a wireless line to make a telephone call, and a prohibition means 40 for interrupting at least incoming calls of the communication means 200' based on a signal from the backward running detection means.
The gist is a special first city telephone device which is equipped with the following features.

[Example] The present invention will be described below with reference to Examples and drawings. FIG. 2 shows the basic configuration of the first embodiment of the present invention. , In the figure, numeral 10 is a reverse travel detector that detects reverse travel of the automobile, and when the gear of the transmission is shifted to the reverse position, a high level signal @ (Jy.

Below, it's called a 1 rubel signal. > is output. Reference numeral 30 denotes an occupant detector that detects whether or not an occupant is seated in the front passenger seat or rear seat. Reference numeral 40 designates an incoming/outgoing call prohibition circuit that interrupts the supply of power to the known car phone 200 based on signals from the reverse running detector 10 and the occupant detector 30.

Note that the backward travel detector 10 corresponds to backward travel detection means,
The incoming/outgoing call prohibition circuit 40 corresponds to a prohibition means, and the car phone 4M200 corresponds to a communication means.

Next, the configurations of the occupant detector 30, incoming/outgoing call prohibition circuit 40, and car phone 1200 will be explained in detail.

First, the occupant detector 30 is composed of contacts 32, 34, transistors 36, 38, and resistors R1, R2, R3, and R4, and is supplied with power from the battery voltage and has a circuit that prohibits incoming and outgoing calls depending on the seating status of the front passenger seat and rear seat. A digital signal is output to 40.

In addition, the incoming call/outgoing call ticket 1F circuit 40 is the NOT group 1 to 42.
, OR gate 44, transistor 46, relay coil 4
8, the circuit 40 is composed of a contact point 49, and the same circuit 40 is connected to the reverse detector 1
0, the digital signals from the transistor 36 and the transistor 38 are input, and based on these signals, it is determined whether or not to supply power to the car phone 200 from the battery power supply B.

The car phone 200 includes an antenna 202, a transmitting and receiving unit 204, a received wave amplifying unit 206, a receiving unit 208, a local oscillator for transmitting and receiving 210, a transmitting unit 212, a transmitted wave amplifying unit 214, a control unit 216, a transmitting and receiving foil 218, It has a 4R configuration consisting of a hook switch 220, an operating section 222, a power supply section 224, and a terminal 226, and is supplied with power from an incoming/outgoing call prohibition circuit 40 for making calls.

In addition, when the hook switch 220 picks up the handset 218,
A low level signal (hereinafter referred to as an L level signal) when the handset is not picked up.

), and the operation section 222 operates dial buttons, switches, display sections, etc., and the power supply section 224 supplies power to the antenna 202 and the operation section 222.

The configuration of this embodiment has been explained above, and now the operation of this embodiment will be explained. To simplify the explanation, we will explain separately the case where only one driver is on board and the case where there is a passenger in the passenger seat or rear seat.

First, when only one driver is on board, the contacts 32 and 34 are open, so the transistors 36 and 38 are turned on, and upper level signals are output to the OR gate 44, respectively.

Also, when the gear is changed to the reverse position for traveling backwards, a 1 rubel signal is output from the reverse detector 10, and the N
It is converted into an L level signal by the OTOR gate 44, and this L level signal is input to the OR gate 44.

Therefore, since the OR gate 44 outputs an L level signal to the transistor 46, the transistor 44 is rendered non-conductive. Therefore, the relay coil 4 is not energized and the contact 49' is closed, and the power supply section 224 is not supplied with power from the battery, making the mobile telephone 200 unusable.

On the other hand, when the gear A7 is changed to the reverse position and there is an occupant in the front passenger seat or the rear seat when the vehicle is traveling in reverse, the contact 32 or the contact 34 is closed, so the transistor 36 or the transistor 38 is non-conductive, and the OR gate 44 is at least One 1-level signal is output.

In the above case, regardless of whether gear A7 is in the backward or forward position, 1 is sent from the OR gate to the transistor 46.
- Since the level signal is output, the transistor 46 is turned on. Therefore, the relay coil 48 is energized and the contact 4
9 is closed, power from the battery is supplied to the power supply unit 224, and the car phone 200 becomes usable.

As described in detail above, due to the configuration of this embodiment, when the driver is the only occupant and the vehicle is traveling backwards, the power supply to the power supply unit 224 is stopped, making it impossible to receive or make calls from the car phone. be done.

Furthermore, when a passenger is seated in the front passenger seat or the rear seat, it is possible to receive and make calls, and the driver can concentrate on driving since the passenger in the front passenger seat or the rear seat can make a call.

Next, a second embodiment of the present invention will be described. FIG. 3 shows the basic configuration of this embodiment.

The configuration of this embodiment is almost the same as that of the first embodiment, but the incoming call prohibition circuit 50 includes an OR gate 44, a transistor 46, a relay coil 48, a contact The difference is that a NOR gate 43 is included instead of 49.

Further, output signals from the NOTOR gate 44, transistor 36, and transistor 38 are input to the NOR gate 43, and a signal is output from the gate 43 to the OR gate 228.

Then, the car phone 300 is ORed to the car phone 200.
One input terminal of the two-man OR gate 228 is N.

A signal from the R gate 43 is input, and a signal from the hook switch 220 is input to the other input terminal. A signal is then output from the OR gate 228 to the control section 216. Note that the configuration may be such that the signal is directly output from the NOR gate 43 to the control section 216.

Next, the operation of this embodiment will be explained. This embodiment is configured so that only the incoming call function is prohibited while the vehicle is running backwards. That is, when only one driver is driving in reverse, the signals input to the NOR gate 43 are all torque signals, so the NOR gate 43 outputs the torque signal. Therefore, regardless of whether the fuel receiver 218 is picked up or not, in other words, regardless of whether the signal from the hook switch 220 is a 1-level signal or a 1-level signal, the OR gate 22
A 1-level signal is output from 8 to the control section 216. Therefore, a busy signal is output to the transmitter/receiver common unit 204 via the transmitter/receiver common unit vibrator 210, the transmitter 212, and the transmitted wave amplification unit 214, and no ringing sound indicating an incoming call is generated.

On the other hand, when the automobile is traveling backwards and there is an occupant in the front passenger seat or rear seat, a torque signal is output from the transistor 36 or 38, so at least one torque signal is outputted to the NOR gate 43. Therefore, the trubel signal is outputted from the NOR gate 43 to the OR gate 228, and the input/output of the busy signal is determined depending on whether or not the transmit/receive call gi3is is picked up. That is, the car telephone 300 is in a normal call receiving state.

Due to the configuration of this embodiment as described above, when only one driver is driving in reverse, the ringer sound does not indicate the incoming call status from the outside and the incoming call is stopped, and if there are other occupants, the incoming call is stopped. It is possible to receive calls, allowing other passengers to make calls, and the driver can concentrate on driving.

[Effects of the Invention] As explained above, the car telephone device according to the present invention is configured to at least prohibit incoming calls while the car is running backwards.

Therefore, while the vehicle is traveling backwards, the driver does not hear the ringing sound as there is no indication of the incoming call status.

Therefore, the driver is less likely to be distracted by the ringing sound while the vehicle is traveling backwards, so there is an effect that the driver can concentrate on driving.

[Brief explanation of drawings]

FIG. 1 is a basic configuration diagram of the present invention, FIG. 2 is a basic configuration diagram of a car telephone device showing a first embodiment of the present invention, and FIG.
A basic configuration diagram of an example is shown. 10...Reverse running detector 30...Occupant detector 40...Incoming/outgoing prohibition circuit 50...Incoming call prohibition circuit 32.34.49...Contact 36.38.46...Transistor 42 ...NOT gate 43...NOR gate 44.228...OR gate 200.300...Car phone agent Patent attorney Tsutomu Sadatsu and 1 other person Figure 1

Claims (1)

[Scope of Claims] Reverse travel detection means for detecting reversing of the automobile; telephone communication means connected to a subscriber line via a wireless line for making a telephone call; 1. A car telephone device comprising at least means for interrupting incoming calls.