JPS6062742A - Radio telephone equipment - Google Patents

Abstract

PURPOSE:To eliminate crosstalk by connecting selectively a public telephone set and a radio equipment at a base station to a subscriber line by means of a line changeover device. CONSTITUTION:The public telephone set 9 and the radio equipment 15 at the base station are connected to the subscriber line 8 to the exchange 1 via the line changeover device 11. The subscriber line 8 is connected normally to the public telephone set 9. When the radio equipment 15 receives a call signal from a mobile station 6, the using state of the public telephone set is supervised on a connection line 10 and when the telephone set is not used, the changeover circuit 11 connects the line 8 to the position of the radio equipment 15 Moreover, the line 8 used by the radio equipment is displayed on a display device 14 via a connecting line 13 and also the operation of the public telephone set 9 is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wireless telephone device, and more specifically, the present invention relates to a wireless telephone device, and more specifically, a telephone line between a base station wireless device and a public telephone (
This relates to the connection configuration with the subscriber line.

Conventionally, a wireless telephone device such as a cordless telephone is connected in parallel with a main telephone connected to a telephone line. However, when used in this connection configuration, since it is possible to make calls from both this telephone and the wireless telephone device, it is possible to use the wireless telephone device without knowing that a quintuplet telephone is in use, or vice versa. case.

It has the disadvantage of causing crosstalk. In particular, if the above-mentioned connection configuration is used in a public telephone set, crosstalk will occur as well, which can be a major problem.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a radio telephone device which solves these drawbacks and problems and allows a radio telephone to be connected to a subscriber line of a public switched telephone network together with a public telephone.

According to the present invention, a public telephone connected to a public telephone line, a base station wireless device connected in parallel to the public telephone, and a mobile station wireless device connected to the base station wireless device by a wireless line are connected to the public telephone line. In the radio telephone equipment including the base station radio equipment, the base station radio equipment has a public telephone line switching device function to switch and connect the public telephone line to the public telephone and the base station radio equipment, and a usage information display function to display usage information for the public telephone. However, when either a public telephone or a base station radio telephone device is used, the telephone line not in use shall be cut off by the public telephone line switching device, and the public telephone line shall be connected to the base station radio telephone device. A wireless telephone device is obtained which uses the usage information display function to inform the public telephone user that the public telephone cannot be used when the public telephone is closed.

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing the connection configuration of a conventional wireless telephone device. A base station wireless device 5 is connected to a switching network from a wired telephone exchange 1 to a telephone line (subscriber line) 2 of this telephone 4 via a telephone line connecting device 3. Furthermore, the base station wireless device 5 is also connected to the mobile station wireless device 6 via a wireless line. In such a connection configuration, since it is possible to connect to the subscriber line 2 from any of the heavy telephones, the telephone set 4, and the base station wireless device 5, there is a risk that crosstalk may occur as described above.

FIG. 2 is a block diagram showing an embodiment of the wireless telephone device according to the present invention, and FIG.
FIG. 2 is a more specific diagram of the radio and control unit 15 of FIG. A public telephone line switching circuit 1 is added to the conventional device shown in Fig. 1.
1, a usage information display device 14, and a switching control section 150 provided in the base station wireless device 5 that controls the switching circuit 11 are added. Usually, the public telephone line 8 is connected to a public telephone 9 by a switching circuit 11. When the base station radio equipment 5 receives a call signal from the mobile station radio equipment 6, it monitors the usage status of the public telephone 9 obtained from the connection line 10, and if it detects that it is not in use, the switching circuit 11 switches the line 8 to is connected to the signal line 8' on the base station radio equipment 5 side. At the same time, the connection line 13 indicates that line 8 is being used by the wireless device.
is displayed on the display device 14 via the public telephone 9, and the operation of the public telephone 9 is stopped.

In FIG. 3, the radio section 151 includes a transmitting section 16, a receiving section 18, and a hybrid transformer circuit 17. In the control unit 150 that controls the switching circuit 11, the detection circuit 2o constantly monitors the usage status of the public telephone 9 via the connection wA1o.

When the telephone 9 is not in use, the detection circuit 2° is AN
The gate of the D circuit 21 is open, and in this state, the receiving section 1
When the detection circuit 19 detects a calling signal from the mobile station 6 via the mobile station 8, the switching control section 22 is activated and switches the subscriber line 8 to the signal line 8' side of the radio section 151. circuit 11
control.

In addition, if public telephone 9 is already in use,
In response to the public telephone operation detection circuit 2o, the transmitter 16
The mobile station wireless device 6 is configured to stop the mobile station wireless device 6 and cut off the wireless line with the mobile station wireless device 6.

As explained above, according to the present invention, there is no risk of crosstalk that can occur with conventional devices, and it is possible to notify the user of a public telephone that it cannot be used using the usage information display device, making it easy to use. A mobile radiotelephone device can be obtained.

5-

[Brief explanation of the drawing]

Figure 1 is a diagram showing the connection configuration of a conventional wireless telephone device;
The figure is a block diagram showing one embodiment of the radio telephone device according to the present invention, and FIG. 3 is a detailed block diagram of the radio section and control section of the base station radio device in FIG. 2. In the figure, 1...exchange, 2...telephone line, 3...telephone line connection device, 4...
...Telephone, 5...Base station wireless device, 6...
・Mobile station radio equipment, 8...Public telephone line, 8'
...Signal line, 9...Public phone, 11
...Public telephone line switching device, 12.13...
... Control line, 14 ... Usage information display device, 1
5...Radio and control unit of base station radio device, 150...
- Switching control unit, 15]... Radio unit, 16...
...Transmitter section, 17...Hybrid transformer circuit, 18...Receiver section, 19...
Call detection circuit, 20... Public telephone operation detection circuit, 21... AND circuit, 22... Public telephone line switching device control circuit, 23... Usage information 6 One [1 11 one] - seagull

Claims (1)

[Claims] A radio telephone device including a public telephone and a base station radio device connected in parallel to one subscriber line, and a mobile station radio device connected to the base station radio device via a radio line,
a line switching means for selectively connecting the public telephone and the base station wireless device to the subscriber line; and a line switching means that detects whether the public telephone or the base station wireless device is in use. a control means for controlling the line switching means to disconnect the base station wireless device from the subscriber line; and a display means provided on the public telephone for displaying when the base station wireless device is in use. wireless telephone equipment.