JPS5915573B2 - Mobile tower telephone - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a telephone set for use in a mobile body, which restricts calls from being made and received while driving to improve safety when using the telephone on a mobile body.

In conventional mobile phones, there is no relationship between the speed of the mobile unit and the call restriction mode, and the call restriction mode can be pressed when called, or by pressing the incoming call restriction switch in advance. , when called, it enters incoming call restriction mode.

For this reason, while driving at high speeds or when the car was in motion, it was possible to restrict incoming calls, but it was not possible to restrict outgoing calls.

Additionally, if the incoming call restriction switch is not pressed while driving at high speed, the bell will ring when a call arrives, making driving operations unsafe.

The present invention combines the speedometer of a mobile object with a telephone circuit, thereby regulating the making and receiving of telephone calls based on the speed of the mobile object, thereby ensuring safe driving when using a telephone mounted on the mobile object. The purpose is to

This will be explained below along with examples.

In FIG. 1, 1 is a radio antenna for exchanging signals with a base station, 2 is a duplexer, 3 is a receiver, and 4 is a receiver.
5 is a transmitter, 5 is a receiving circuit for control signals such as calling signals and call termination signals sent from the base, 6 is a control circuit for controlling this device, 7 is a digital switch for setting the speed of the second stage, 8 is the value from switch 7 and A/D converter 10, which is AN
9 is the speedometer of the moving object; 10 is a converter for converting the analog quantity of the speedometer 9 into a digital binary code; 11 is the operation display section of the telephone; 1
Reference numeral 2 designates a switching circuit that switches the bell tone and the signal of the handset 14 according to the signal from the control circuit 6, 13 a bell, 14 a handset, 15 a signal transmission control circuit, and 16 a transmission signal oscillation circuit. 35 Fig. 2 shows the operation display section 11 of a push-button type telephone, where 1 is a telephone number display, 102 is a telephone number push button, 103 is a start switch, 104 is a clear switch, and 105 is a drive button. The medium mode switch 106 is a memory switch.

Next, the operation of this embodiment will be explained.

If the mode switch 105 "Driving" in Figure 2 has been pressed in advance, and if the moving object moves and the speedometer swings, that is, if the speed setting is in the first stage, the analog signal of the speedometer is Figure 1: The A/D converter 10 converts the signal into a digital signal, and the AND circuit 8 performs an AND operation with the signal from the "running" mode switch coming from the operation display section 11 to send a call control signal to the control circuit 6. give. At this time, even if the handset 14 is picked up and a pickup signal is applied to the control circuit 6, call control is not performed and a busy tone is emitted from the handset.

Similarly, when a call is received from the base station in the above-mentioned state, the signal of this call is received by the receiver 3 via the antenna 1 and the duplexer 2, and after being received by the signal receiving circuit 5, it is sent to the control circuit 6. Added.

Here, by determining that it is in the incoming call restriction mode,
The signal sending control circuit is operated to oscillate an incoming call restriction signal in the sending signal generating circuit 16, and the signal is sent back from the antenna 1 to the base via the transmitter 4 and the duplexer 2. Furthermore, when the speed of the moving object exceeds the speed set by the speed setting switch 7, calling and receiving calls are prohibited regardless of whether the mode switch 105 is pressed during driving.

That is, the output of A/D converter 10 shown in FIG.

The following operations are similar to those described above. As is clear from the above embodiments, according to the present invention, when a person is driving a moving object alone and there are no other passengers, pressing the "Driving" mode switch allows the moving object to be moved. , making and receiving calls are regulated, allowing safe driving.

In addition, if there is another passenger in the vehicle and the passenger can pick up the handset, set the "while driving" mode switch to 0F.
By setting F, even if the mobile object moves, if the speed is slower than the set value, the call operation can be made.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a mobile phone according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of its main parts. 6... Control circuit, 7... Speed setting switch, 9... Speed meter.

Claims (1)

[Claims] 1 In conjunction with the speedometer of the moving object, the device receives a means for regulating call origination and incoming calls according to the speed of the moving object, and the speed setting of this means is in two stages, and the mode switch is set in the first stage of low speed. A telephone for mounting on a mobile body, characterized in that the restriction is performed only when the mode switch is pressed, and in the second stage of high speed, the restriction is performed regardless of the mode switch.