JPS63299567A - Call time warning equipment for talking equipment - Google Patents

Abstract

PURPOSE:To prevent the breakdown of a system by producing a warning signal when a prescribed time passes when the talking lasts for a long time or a handset is kept away from a talking device for a long time. CONSTITUTION:A control part 4 fetches a call time signal S from an outside line call detecting part 8 and activates a talking circuit 10 when an outside line call is confirmed. At the same time, the part 4 starts a timer 5 to count the talking time. In case the outside line call lasts for a long time or a handset 1 is kept away from a telephone 2 for a long time, the part 4 produces a warning signal by the timer 5 via an oscillator 9 when a prescribed time passes from a time point when the timer 5 is started. Then the warning is informed to outside with actuation of a sound generator 7. Thus the breakdown of a system is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a call alarm device for a communication device, and in particular to a call alarm device for a communication device such as a telephone having one telephone line and one telephone set. do.

[Technical Background of the Invention and Problems Therewith] Conventionally, this type of telephone has been composed of a telephone 2 including a handset 1 and an entrance handset 3, as shown in FIG. 2, and the telephone 2 is connected to an outside line 13. has been done.

In this telephone 6!2, in the case of an outside line call, the operation is as follows: pick up the handset 1 -> press the number of the other party using the numeric keypad 15 of the telephone 2 -> the other party picks up and the call is made to an outside line. Further, when a call is received from the outside line 13 to the telephone set 2, the user picks up the handset 1 or receives the call through the speaker 11, so that the outside line is communicated. Furthermore, it is possible that the handset 1 is detached from the telephone set 2 for some reason and left unattended.

When the above-mentioned outside call continues for a long time, or when the telephone line remains idle for a long time, the telephone line continues to be seized. In particular, if the handset 1 is disconnected from the phone va2 and left unattended, the outside line 13 will be captured, so calls will no longer be received, and even if a third party tries to call the phone 2, it will always be busy. In some cases, the telephone 2 side may not be aware that the handset 1 has been removed from the telephone 2 and has been left unattended.

In this way, if the person is far away from the telephone 2, the handset 1 may be disconnected from the telephone Ia2, and even though it appears that the handset 1 is connected to the telephone 2 normally, in reality it is not connected normally. If there is no call, it is not possible to notify those around you, so the call is not received, and the call is always busy.

[Purpose of the Invention] The present invention has been made to solve the above-mentioned disadvantages, and is intended to be used when a telephone call lasts for a long time, or when the handset is removed from the telephone device and left unattended for a long time. It is an object of the present invention to provide a call warning device for a call device that can generate a warning signal when a preset time has elapsed to call attention to the problem and prevent a system failure.

[Summary of the Invention] In order to achieve the above-mentioned objects, the call warning device for a telephone call device of the present invention includes a call detection unit connected to a line;
a call circuit connected to the call detection section; a handset connected to the call circuit; a control section that takes in the call signal from the call detection section; a timer started by the control unit;
The timer includes an oscillator that generates a warning signal when a preset time has elapsed from activation, and a sounding body that is sounded by the oscillator.

[Embodiments of the Invention] Hereinafter, a call warning device in which a preferable embodiment of the present invention is applied to a small office intercom telephone will be described with reference to the drawings.

In FIG. 1, the call warning device of the telephone 2 of the present invention includes an outside line call detection unit 8 connected to an outside line, that is, a line 13.
, a telephone call circuit 10 connected to an outside line call detection unit 8 via a changeover switch 12 , and a handset 1 connected to the telephone call circuit 10 .

Furthermore, the call warning device of the telephone 2 includes a microprocessor that receives the call signal S from the outside line call detection section 8.
A control unit 4 equipped with a unit (MPU), a timer 5 activated by the control unit 4 when the control unit 4 recognizes the call signal S, and a warning signal issued when the timer 5 elapses a preset time from activation. The device includes an oscillator 9 that generates a sound, and a sounding body 7 such as a speaker that is sounded by the oscillator 9 via an amplifier 6.

The entrance handset 3 is connected to the entrance handset communication circuit and amplifier 14 via the extension 16 to the communication circuit 1 via the changeover switch 12.
0 and constitutes a small station intercom.

In the call warning device of the telephone 20 configured as described above, in the case of an outside line call, pick up the handset l and press the number of the other party using the numeric keypad 15 of the telephone 2, and when the other party answers and the call becomes an outside line call, Furthermore, when a call is received from the outside line 13 to the telephone set 2 and the call is made to an outside line by picking up the handset 1 or receiving the call through a speaker (not shown), the handset 1 may be detached from the telephone set 2 for some reason and left unattended. When the microprocessor unit) (
The control unit 4 equipped with an MPU (MPU) takes in the call signal S from the outside line call detection unit 13. The control unit 4 receives a call signal S,
That is, when the controller 4 recognizes that it is an outside line call, it puts the call circuit 10 into operation, and activates the timer 5 to start counting. When an outside call ends within a preset time period from when the timer 5 is activated, or when the handset l has been removed from the telephone set 2 and left unattended, but the user notices this and puts it back and makes a normal call. , the control unit 4 stops counting the timer 5 and resets it, so the oscillator 9 does not generate a warning signal.

However, when making a long-distance telephone call, or when the handset 1 is detached from the telephone 2 and left unattended and the user does not notice this, the control section 4 is activated after a preset period of time has elapsed since the timer 5 was activated. The timer 5 causes the oscillator 9 to generate a warning signal, which causes the sounding body 7 to sound via the amplifier 6 to notify the outside.

Also, this timer 6 starts counting again from when the warning sound sounds, and after the set time has elapsed, the control unit 4
The timer 5 generates a warning signal in the oscillator 9, and the sounding element 7 sounds through the amplifier 6 to inform the outside that it is a long-distance call. Even if the device 1 was removed from the phone 2 and left unattended, until I noticed this, put it back in place, and made a normal call.
It continues repeatedly.

Note that when the changeover switch 12 is switched to the doorway handset 3 side, the doorway handset 3 is connected to the call circuit 10 and the control unit 4 via the extension 16, the doorway handset call circuit and the amplifier 14, and is connected to the control unit 4 for transmission and reception. You can talk to device 1 through the intercom.

The above example is equally applicable to a talking device of an intercom system.

[Effects of the Invention] As is clear from the above embodiments, according to the call warning device of the communication device of the present invention, a call detection section connected to a line, and a call circuit connected to the call detection section are provided. a handset connected to the call circuit; a control unit that receives a call signal from the call detection unit; a timer activated by the control unit when the control unit recognizes the call signal; The timer is equipped with an oscillator that generates a warning signal when a preset time has elapsed from the start of the timer, and a sounding body that is sounded by the oscillator. If the device is removed from the Dentsu packing device and left unattended for a long time, a warning signal can be generated after a preset time has elapsed to call attention, preventing calls from being captured for long periods of time and preventing people from forgetting to hang up the handset. This makes it possible to use lines efficiently. Therefore, it is possible to prevent system failure in the communication device.

[Brief explanation of drawings]

FIG. 1 is a system block diagram of a call warning device for a telephone according to an embodiment of the present invention, and FIG. 2 is a system block diagram of a conventional telephone. l... Handset/receiver 4... Control section 5... Timer 7... Sound generator 8... Call detection section 9... ...Oscillator 10...Telephone circuit 13...Line (outside line) S...Signal agent during call Patent attorney Moritani - Separation 1 Figure 2

Claims (1)

[Claims] a call detection unit connected to a line, a call circuit connected to the call detection unit, a handset connected to the call circuit, a control unit that takes in a call signal from the call detection unit, and the control unit a timer that is activated by the control unit when the timer recognizes the call signal; an oscillator that generates a warning signal when a preset time has elapsed from when the timer is activated; and a sounding body that is sounded by the oscillator. A call alert device for a call device, characterized in that: