JPH0440144A - Control system for call signal generator in subscriber system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Summary] This invention relates to a control method for a ringer generator of a subscriber terminal station that has a function of supplying a ringer signal (ringer) to a telephone subscriber's terminal, which saves power. The purpose of this is to provide a control method for a ringer generator, which is connected to an exchange or transmission device by an optical fiber, and by an incoming call signal inserted into the control bits of the output data of the exchange or transmission device. In a subscriber system having a control station equipped with a ringing signal generator that outputs a ringing signal to a subscriber telephone connected to the control station, receiving and detecting an incoming call signal, and detecting an incoming call signal. The control station is equipped with a control unit that outputs a control signal to operate the power supply of the paging signal generator only when the control unit detects an incoming call signal. Configure it to output to a mobile phone.

[Industrial application field]

The present invention provides a ringer for a subscriber terminal station that has the function of supplying a ringer to a telephone subscriber's terminal.
This paper relates to improvements in the generator control method.

Conventionally, a ringer is supplied to a subscriber's terminal via a metal telephone line from an exchange at a telephone office connected to the subscriber or from a subscriber's remote terminal equipment.

Recently, in consideration of the diversification of communication services, the concept of using optical fiber to connect subscriber lines to the subscriber's home, rather than the conventional metal telephone line, is becoming more concrete.

In this case, the optical fiber passes only digital signals and does not transmit ringer, which is an analog signal with a frequency of 20 Hz, for example, so it is no longer possible to receive ringer from the exchange or remote terminal equipment. It is necessary to provide separate ringer generators. At this time, it is desired to reduce the power used to operate the ringer generator as much as possible.

[Conventional technology]

FIG. 3 is a block diagram showing the configuration of a first conventional subscriber system.

FIG. 4 is a block diagram showing the configuration of a second conventional subscriber system.

FIG. 3 shows how a metal telephone is connected between the subscriber's telephones 6-1 to 6-n and the subscriber's remote terminal equipment 4, or between the telephone exchange 1 of the telephone office and the subscriber's remote terminal equipment 4. This figure shows the configuration of a subscriber system when a telephone line is used, and the supply of ringing signals (ringer) to telephones 6-1 to 6-n is carried out by a ringer generator 3 connected to the exchange 1 or by a subscriber system. This is carried out from a ringer generator 5 connected to a remote terminal device 4 via a metal telephone line.

Further, FIG. 4 shows a case where the subscriber remote terminal equipment 4 and the subscriber terminal stations 7-1 to 7-n of each subscriber are connected by optical fibers. In this case, the subscriber terminal stations 7-1 to 7-n are installed outdoors, on the outer wall, etc. of the subscriber's house, and include an interface unit for providing communication services such as telephones, a ringer generator, and operating these. It consists of a power supply device generated from a household AC power supply necessary for this purpose, a rechargeable battery used in the event of a power outage, a charger, etc.

Normally, communication services and battery charging were performed using electric power obtained by rectifying household AC power, and in the event of a power outage, communication services were maintained using the electric power stored in the batteries.

[Problem to be solved by the invention]

However, in the control method of the ringer generator in the second conventional example mentioned above, power is constantly supplied to the ringer generator (even when not in use), which increases the power consumption and significantly increases the cost. There was a problem with that.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a ringer generator control method that saves power.

[Means to solve the problem]

The above problem is solved by the configuration of the device shown in FIG.

That is, in FIG. 1, the exchange 100 or the transmission device 400
The subscriber telephone 600 connected to the switch 100 or the transmission device 400 by an optical fiber and connected to the control station 700 receives the calling signal by the incoming call signal inserted into the control bit of the output data of the switch 100 or the transmission device 400.
A control station 70 equipped with a calling signal generator 180 that outputs to
0, 160 is provided in the control station 700, receives and detects an incoming call signal, and activates the paging signal generator 18 only when the incoming call signal is detected.
This is a control unit that outputs a control signal for operating the power supply.

Then, the configuration is such that only when the control section 160 detects an incoming call signal, the ringing signal generator 180 is operated and the ringing signal is output to the subscriber telephone 600.

[Function] In FIG. 1(a) or (b), in the control unit 160 provided in the control station 700, the switching equipment 100 or the transmission device 4
It receives the output data of 00 and detects the incoming call signal inserted into the control bit. Then, only when an incoming call signal is detected, a control signal for operating the power supply of the paging signal generator 180 is output.

A control signal output from the control section 160 turns on a contact point of a switch connected to a power source for operating the calling signal generator 180, for example, to supply power to the calling signal generator 180. Then, only when the control section 160 detects an incoming call signal, the ringing signal generator 180 is operated to output the ringing signal to the subscriber telephone 600.

As a result, by simply adding a simple circuit, it is possible to save power by operating the paging signal generator 180 only when necessary.

(Embodiment) FIG. 2 is a block diagram showing the configuration of a subscriber terminal station according to an embodiment of the present invention.

The same reference numerals indicate the same objects throughout the figures.

The present invention differs from conventional examples in that the telephone station inserts the incoming call signal into the signaling data bits included in the communication data, and the subscriber terminal station detects this to control the ringer generator. This is to realize power saving.

In Figure 2, when it becomes necessary to transfer a ringing signal (ringer) to a subscriber's telephone in an exchange (not shown), the incoming call signal is inserted into the signaling data bits and sent out to a transmission line made of optical fiber. do. Signaling data bits have traditionally been commonly used in telephone and other services to convey call control information such as subscriber call origination, dialing signal incoming call, etc.

The signal from the optical fiber transmission line is transmitted to the optical/electrical interface unit 8 of the subscriber terminal station 7.
It is received by an electrical/optical converter (hereinafter referred to as 0/E-Elo) 9, converted into an electrical signal, and output to a signaling data/bit detection/insertion section 10. Signaling data/
The bit detection/insertion unit 10 detects the incoming call signal and outputs it to the relay drive circuit 16.

On the other hand, the power supply used in the subscriber terminal station 7 requires a household AC (alternating current) power supply in addition to the power supply device 12.
DC) source, charger 13 and relay contact 1
5 to the relay drive circuit 16 and to the interface unit 8. Charger 13 uses the above D in case of power outage.
The battery 14 is charged by the C power source, and in the event of a power outage, the power stored in the battery 14 is used to maintain communication service.

When the relay drive circuit 16 described above receives an incoming call signal, the relay drive circuit 16 operates and the relay contact 17 is activated.
Turn on (short). As a result, the necessary power is supplied from the power supply device 12 to the ringer generator 18 via the relay contact 15, and the ringer generator operates to output ringer. This ringer is supplied to the subscriber's telephone 6 via the subscriber interface circuit 11.

The subscriber interface circuit 11 has functions such as on/off hooking of a telephone set and detection of a dialing signal.

As a result, it is possible to save power by operating the ringer generator only when necessary.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to save power by operating the ringer generator only when necessary by simply adding a simple circuit.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the principle of the present invention. FIG. 2 is a block diagram showing the configuration of a subscriber terminal station according to an embodiment of the present invention. FIG. 3 is a diagram showing the configuration of a subscriber system according to the first conventional example. Block Diagram FIG. 4 is a block diagram showing the configuration of a second conventional subscriber system. In the figure, a control section is shown. (α) Value〉 Illustration of the principle of the present invention 1 time

Claims (1)

[Scope of Claims] A switch (100) or a transmission device (400), which is connected to the switch (100) or the transmission device (400) by an optical fiber;
A ringing signal generator (18) outputs a ringing signal to a subscriber telephone (600) connected to a control station (700) according to an incoming call signal inserted into the control bit of the output data of 00).
0), which receives and detects the incoming call signal, and operates the power supply of the paging signal generator (180) only when the incoming call signal is detected. A control unit (160) that outputs a control signal for controlling the control station (7)
00), and operates the ringing signal generator (180) only when the control unit (160) detects the incoming call signal, and outputs the ringing signal to the subscriber telephone (600). A control method for a paging signal generator in a subscriber system, characterized in that: