JPH11178072A - Portable mobile radio telephone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable mobile radio telephone system by which dialing/ call reception and a speech during automobile driving are surely inhibited. SOLUTION: When an engine key of an automobile is inserted at an accessory or on position, power is supplied to a transmitter 3 via a cigar socket 1. Then a radio wave transmission circuit section 4 starts transmission of a radio wave 5. In general, a portable radio telephone set 6 possessed by the driver is carried by the driver in a cabin or placed in the vicinity of the driver. A radio wave reception circuit 7 of the portable mobile radio telephone set 6 received a radio wave from the transmitter 3. When the radio wave reception circuit 7 receives the radio wave, the radio wave reception circuit 7 informs a dialing/call reception inhibit circuit section 8 of it. The dialing/call reception inhibit circuit section 8 inhibits the operation of a dialing/call reception circuit section 9, in response to the notice of the radio wave reception.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable mobile radio telephone which can be prohibited from being used while driving a car.

[0002]

2. Description of the Related Art With the spread of mobile phones, traffic accidents caused by using a mobile phone while driving a car, for example, a drop in consciousness of driving a car due to outgoing / incoming calls and calls, and a traffic accident caused by carelessness and driving aside. Increase is a problem. Another problem is that the use of a mobile phone in a place where many people gather, such as in a train, causes inconvenience to others.

[0003] The act of refraining from using a mobile phone while driving a car must be initiated intentionally by the user in principle. Therefore, if the driver forgets to turn off the power switch of the mobile phone, an incoming call may occur during driving. Some mobile phones can set a power on / off time in advance. In this case, for example, the power is set to be turned off at the scheduled operation start time, or the power is set to be turned on at the scheduled operation end time. However, driving a car is not always performed at a fixed time every day, and even with such a method of use, use of a mobile phone while driving a car cannot be completely prohibited.

[0004]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a portable mobile radio telephone device capable of reliably prohibiting incoming and outgoing calls and calls during driving a car.

Japanese Patent Laying-Open No. 57-92933 discloses a technique for controlling a portable mobile radio telephone apparatus in accordance with the state of an engine key switch of a car. A mechanism for avoiding the problem and prohibiting the use of the mobile phone while driving a car is not disclosed.

[0006] Japanese Patent Application Laid-Open No. Hei 7-245782 discloses an apparatus for prohibiting the use of a portable telephone when passing through a ticket gate to enter a station. While such technology is effective in prohibiting the use of mobile phones in places where people gather, such as stations, it is effective in prohibiting the use of mobile phones in places such as cars. Cannot be applied.

[0007]

SUMMARY OF THE INVENTION A portable mobile radio telephone device according to the present invention includes a transmitter for transmitting radio waves in conjunction with a state where an accessory power supply of a car is turned on and a state where an engine of the car is running. And a portable mobile radiotelephone having a transmission / reception prohibition circuit unit that prohibits transmission / reception when a radio wave from the transmitter is received. The transmitter may be configured to be connected to a cigar socket of a vehicle and transmit radio waves when receiving power from the cigar socket. Further, the transmitter may be configured to transmit radio waves with electric power that reaches the vicinity of the driver's seat of the automobile. The transmission / reception prohibition circuit may be configured to permit transmission / reception when no radio wave from the transmitter is received.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an example of a portable mobile radio telephone device according to the present invention. As shown in the figure, a transmitter 3 installed in an automobile is used by being connected to a cigar socket 1 provided in the automobile by a power cord 2. The transmitter 3 has a radio wave transmitting circuit 4 for transmitting a weak radio wave 5 reaching the front seat, and an antenna (not shown). In this embodiment, the portable mobile radiotelephone 6 includes, in addition to an original call circuit (not shown) and an originating / receiving circuit unit 9 for controlling originating / receiving of an original call,
An antenna (not shown) for receiving a radio wave from the transmitter 3 and a radio reception circuit unit 7; a transmission / reception prohibition circuit unit 8 for prohibiting the operation of the transmission / reception circuit unit 9 when the radio wave reception circuit unit 7 receives a radio wave; Is provided.

Next, the operation will be described with reference to the flowchart of FIG. It is assumed that the driver carries the portable mobile radio telephone 6 and gets on the car. It is also assumed that the driver has turned on the power of the portable mobile radio telephone 6 (step S11). The radio wave transmission circuit unit 4 of the transmitter 3 transmits a radio wave of a predetermined frequency when power is supplied. The transmitter 3
The vehicle is connected to a cigar socket 1 of a car by a power cord 2. Therefore, when the vehicle engine key is inserted and is in the accessory or ON position (step S2).
1) Power is supplied to the transmitter 3 via the cigar socket 1. Therefore, the radio wave transmission circuit unit 4 starts transmitting the radio wave 5 (Step S22).

[0010] The portable mobile radiotelephone 6 carried by the driver is generally carried by the driver in the vehicle or is placed near the driver. Therefore, the radio wave receiving circuit unit 7 of the portable mobile radio telephone 6 receives the radio wave from the transmitter 3. When the radio wave receiving circuit unit 7 receives the radio wave (step S12), the radio wave receiving circuit unit 7 notifies the transmission prohibition circuit unit 8 to that effect. The transmission / reception prohibition circuit unit 8 prohibits the operation of the transmission / reception circuit unit 9 in response to the notification of the radio wave reception (step S14). For example, the power supply to the transmission / reception circuit unit 9 is controlled to be stopped. Therefore, the portable mobile radiotelephone 6 cannot receive an incoming call from the base station. Further, the driver cannot make a call using the portable mobile radio telephone 6.

As described above, while the accessory power supply of the automobile is turned on or the engine of the automobile is running, transmission and reception of the portable mobile radiotelephone 6 are automatically prohibited. Therefore, without automatically turning off the power switch of the portable mobile radiotelephone 6 at the start of driving a car, it is possible to automatically make outgoing / incoming calls while driving a car. It is possible to prevent traffic accidents due to caution and driving aside.

If the driver sets the engine key to the OFF position, that is, if the vehicle is completely stopped, power is not supplied to the transmitter 3, so that the radio wave transmission circuit 4 of the transmitter 3 Stop sending (step S2
4). The radio wave receiving circuit unit 7 of the portable mobile radiotelephone 6 allows the transmitter 3 to transmit the signal even when the transmitting / receiving circuit unit 9 is in the operation prohibited state.
Monitors radio waves from. Therefore, when the engine of the automobile is stopped, the radio wave receiving circuit unit 7 of the portable mobile radio telephone 6 is set to a state of not receiving the radio wave from the transmitter (step S14).

The radio wave receiving circuit section 7 informs the transmission / reception inhibiting circuit section 8 of this state. Outgoing / incoming call prohibition circuit 8
Releases the operation prohibition of the calling / receiving circuit unit 9 in response to the notification. Therefore, the portable mobile radio telephone 6 can make and receive calls (step S13).

As described above, when it is desired to make a call using the portable mobile radio telephone 6, the driver only needs to stop the car at a safe position. When the car is stopped and the engine key is turned off, the portable mobile radio telephone 6 can automatically make and receive calls.

According to this embodiment, the portable mobile radio telephone 6 can make and receive calls only by stopping the vehicle without stopping the engine. FIG. 3 is a flowchart for explaining such a method of use.

The radio transmission circuit section 4 of the transmitter 3 transmits radio waves with an output that allows radio waves to reach when the portable mobile radiotelephone 6 is carried by the driver in the vehicle or placed near the driver. doing. Therefore, even when the engine of the car is operating and the radio wave receiving circuit unit 7 of the portable mobile radio telephone 6 can receive the radio wave from the transmitter 3, the driver stops the car at a safe position, If the user carries the portable mobile radio telephone 6 and gets off the car, the radio wave from the transmitter 3 does not reach the radio wave receiving circuit section 7.
Even in such a state, the transmission / reception inhibition circuit unit 8 releases the operation inhibition of the transmission / reception circuit unit 9. Therefore, the portable mobile radio telephone 6 can make and receive calls (step S15).

As described above, in this embodiment, a radio wave for prohibiting the outgoing / incoming call of the portable mobile radiotelephone 6 reaching the vicinity of the driver's seat is transmitted in conjunction with turning on the accessory power of the automobile and operating the engine. Is done. Therefore, even when the power switch of the portable mobile radiotelephone 6 is turned on, the outgoing / incoming of the portable mobile radiotelephone 6 is automatically prohibited while the vehicle is running. When the engine of the automobile is turned off, the portable mobile radio telephone 6 automatically returns to a state where transmission and reception are possible.
Further, even if the driver does not turn off the engine of the car, the driver automatically returns to a state where the portable mobile radio telephone 6 can make and receive calls when the driver carries the mobile radio telephone 6 and gets off the car. it can.

For example, if an attempt is made to apply the technique described in Japanese Patent Application Laid-Open No. Hei 7-245782, an unspecified number of drivers are prohibited from using a portable telephone carried while driving, so that the use of mobile phones is prohibited. Transmitters for transmitting high-power radio waves must be provided everywhere. On the other hand, in this embodiment, it is possible to prohibit the use of the portable mobile radiotelephone 6 during driving only by connecting the transmitter 3 for transmitting the radio wave of weak electric power to the cigar socket 1 of the automobile.

[0019]

According to the present invention, a portable mobile radio telephone apparatus includes a transmitter for transmitting radio waves in conjunction with a state where an accessory power supply of a car is turned on and a state where an engine of the car is running. Since it is configured to prohibit the transmission and reception of the portable mobile radio telephone when receiving a radio wave from the transmitter, there is an effect that the use of the portable mobile radio telephone while driving a car can be surely prohibited. If the transmitter is connected to the car's cigarette socket and is configured to emit radio waves when power is supplied from the cigarette socket, the portable mobile radiotelephone is automatically driven by the simple configuration. There is an effect that use can be prohibited. In addition, since the transmitter is configured to transmit radio waves with enough power to reach the vicinity of the driver's seat of the car, it is possible to reliably prohibit the use of the portable mobile radio telephone while driving the car by using an inexpensive transmitter. it can. Since the transmission / reception prohibition circuit unit is configured to permit transmission / reception when the radio wave from the transmitter is not received, the engine of the vehicle may be turned off, or the driver may carry the portable mobile radio telephone and carry the vehicle. By getting off the vehicle, it is possible to automatically return to a state where the portable mobile radio telephone can make and receive calls.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an example of a portable mobile radio telephone device according to the present invention.

FIG. 2 is a flowchart showing an example of use of the portable mobile radio telephone device according to the present invention.

FIG. 3 is a flowchart showing another example of use of the portable mobile radio telephone device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cigar socket 3 Transmitter 4 Radio transmission circuit part 6 Portable mobile radiotelephone device 7 Radio reception circuit part 8 Transmission / reception inhibition circuit part 9 Transmission / reception circuit part

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04M 1/66 H04M 1/66 C H04B 7/26 H

Claims (4)

[Claims] 1. A transmitter for transmitting a radio wave in conjunction with a state where an accessory power supply of a vehicle is turned on and a state where an engine of the vehicle is running, and prohibiting transmission and reception when receiving a radio wave from the transmitter. A portable mobile radio telephone device comprising: a portable mobile radio telephone having a transmission / reception inhibition circuit unit. 2. The portable mobile radio telephone device according to claim 1, wherein the transmitter is connected to a cigarette socket of the automobile, and transmits a radio wave when power is supplied from the cigarette socket. 3. The portable mobile radio telephone device according to claim 1, wherein the transmitter transmits radio waves with electric power that reaches the vicinity of the driver's seat of the automobile. 4. The portable mobile radio telephone device according to claim 1, wherein the transmission / reception inhibition circuit unit permits transmission / reception when no radio wave from the transmitter is received.