JPS63244963A - Telephone set - Google Patents

Abstract

PURPOSE:To save a telephone charge, by setting and storing an arbitrary speech limit time on a telephone set, and generating alarm when a call exceeding the speech limit time is performed. CONSTITUTION:Firstly, the speech limit time is registered in a data memory 25 in advance. Meanwhile, a control part 21, when detecting off-hook, performs the same outgoing control as that of an ordinary telephone set, and also, afterwards, when detecting the response of an opposite subscriber, reads out the speech limit time from the data memory 25, and stores it in the working register of a working memory 27, then, starts up a timer circuit 28. And the control part 21 compares the value of the working register in the working memory 27 with the count value of the timer circuit 28 at every counting of a speech time, and at the time when the value of the count value of the timer circuit 28 exceeds the value of the working register, an alarm generator 30 is started up, then, the alarm is generated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a telephone, and more particularly to a telephone having a device 1m that generates an alarm when a preset call time limit is exceeded.

[Conventional technology]

Conventionally, telephones with this type of alarm function, for example, in public telephones, calculate the available call time at the exchange center based on the amount of money inserted and the charge system of the destination area.
There is an example in which an alarm is issued from the switching center when the remaining talk time after deducting the call time during a call is less than 30 seconds, but the telephones themselves have such a function built-in. do not have.

[Problem that the invention seeks to solve]

The conventional telephones mentioned above do not have a function to measure call time and issue an alarm when the call time exceeds a preset call control time, so callers can talk freely without being aware of the call time. However, there is a disadvantage that the call time becomes longer than necessary and the telephone usage charges increase.

[Means for solving problems]

The telephone set of the present invention includes an internal memory for storing call time limit data, a registration button for registering the call time limit in this internal memory, and a delete button for deleting the call time limit, and the internal memory after pressing the register button. an input button for inputting arbitrary call time limit data, a timer for measuring the call time during a call, a display for displaying the output of this timer, an alarm generator for generating an alarm, and and a control section that compares the time with the call time limit data in the internal memory and generates an alarm from the alarm generator when it is detected that the call time exceeds the call time limit.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a perspective view showing an example of the structure of this embodiment.

In FIGS. 1 and 2, the telephone of this embodiment has a registration button 22 for registering call control time, a delete button 23 for deleting call control time, and a dial number for inputting a dial number and an arbitrary call limit time. a data memory 25 that stores a call limit time, a program memory 26 that stores a control program, a working memory 27 that stores a work register, and a hook-off detector that detects the start of a call and measures the call time. A timer circuit (hereinafter referred to as a timer circuit) 28, a display device 29 that displays call time, and an alarm generator 30 that generates an alarm.
, a dial signal generation output path (hereinafter referred to as dial output circuit) 31 , a speech network circuit 32 , a registration button 22 , a delete button 23 . A data memory 251, two displays, an alarm generator 30. It has a control unit 21 that controls outputting signals to a dial sending circuit 31, and as shown in FIG. 2, a handset 12, a registration button 22, a deletion button 23, and A keyboard 24 and two displays are mounted.

Next, the operation of this embodiment will be explained.

First, a method for registering a call time limit will be explained.

In order to activate the alarm function, a call time limit of 1 second or more, for example, is registered in advance in the data memory 25. Zero is written in the data memory 25 as initial data, and when making a call in this state, the alarm function does not work.When the registration button 22 is pressed, the control unit 21 detects this and enters the input state. become. At this time, the display 29
, the call limit time registered in the data memory 25 is output.Next, input the desired call limit time from the keyboard 24 and display it on the display 29, and then press the registration button 22 again. , the input data of the call limit time is written into the data memory 25.

Next, a method of deleting the call limit time registered in the data memory 25 will be explained. When the delete button 23 is pressed, the control unit 21 detects this and initial data zero is written in the data memory 25. . In addition to this method, the result will be the same even if zero is input using the call limit time registration button 22.

Next, implementation of the alarm function will be explained.

If the signal from the timer circuit 28 is valid after off-hook detection, the control unit 21 receives and receives a dial signal from the keyboard 24, displays the dial number on the display 29, and generates a dial signal corresponding to each key on the keyboard 24. The dial signal is sent to the dial sending circuit 31 to be converted into a dial signal, and the dial signal is sent to the telephone line through the speech network circuit 32. In other words, it performs the same dialing operation as a normal telephone. After that, when the control unit 21 detects an incoming call, it reads out the call limit time from the data memory 25, stores it in the work register in the working memory 27, starts the timer of the timer circuit 28, and sets the call time to 1 second. Count each time. working memory 27
When the value of the work register in the working memory 27 is not zero, the value of the work register in the working memory 27 and the count value of the timer circuit 28 are compared each time the call time is counted. At this time, if the count value of the timer circuit 28 becomes larger than the value of the work register in the working memory 27, the control unit 21 replaces the value of the work register in the working memory 27 with zero, and sends it to the alarm generator 30. issue a command to issue an alarm. Alerts from alarm generator 30 are sent to handset 12 via speech network circuit 32.

〔Effect of the invention〕

As explained above, the present invention sets and stores an arbitrary call limit time on the telephone, and when the caller attempts to make a call beyond the call limit time, an alarm is generated, so the caller can You can notify the caller that the call time limit has expired and consciously urge the caller to end the call.
As a result, there is an effect that telephone usage charges can be saved.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a perspective view showing an example of the structure of this embodiment. 11...Telephone body, 12...Handset, 21...
- Control unit, 22... Registration button, 23... Delete button, 24... Keyboard, 25... Data memory,
26...Program memory, 27...Working memory, 28...Timer circuit, 29...Display device, 3
0...Alarm generator, 31...Dial sending circuit, 32...Speech network circuit.

Claims (1)

[Claims] an internal memory for storing call time limit data; a registration button for registering the call time limit in the internal memory; and a delete button for deleting the call time limit; an input button for inputting time data; a timer for measuring the call time during a call; a display for displaying the output of this timer; an alarm generator for generating an alarm; and a control section that generates an alarm from the alarm generator when it is detected that the call time exceeds the call limit time by comparing the call time limit data with the call time limit data.