JPS63204966A - Telephone system with duration of call informing function - Google Patents

Abstract

PURPOSE:To detect time since both a calling side and a callee side take up handsets till one side puts the handset, and to make an opposite side or himself know a duration of call, during a call by using the inversion of the polarity of a telephone circuit for detecting the duration of call. CONSTITUTION:When the call is started, the polarity of the circuit 1 is inverted, and (a) comes to -, and (b) comes to +, and the output of a comparator 2 comes to Low, and the collector of a transistor 3 comes to High, and a clock 4 and the control input (c) of a voice composing part 6 come to High. and the clock 4 and the voice composing part 6 start to operate. When the clock 4 starts to operate, it transmits a start signal (f) to a counter 5. The counter 5 transmits the signal (g) to the clock 4 at every prescribed time, and the clock 4 converts said signal into the signal of an elapsed time, and transmits it to the voice composing part 6. The voice composing part 6 converts the signal of the time from the clock 4 into a voice, and the sound signal (h) is transmitted to the circuit 1 or to a speaker 14, and it can be heard by the opposite side or by himself. Thus, the actual duration of call can be informed by a voice.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides a telephone device with a call time notification function that uses reversal of the polarity of a telecommunications line to detect the call time and uses a voice synthesizer to notify the call time. It is related to.

BACKGROUND OF THE INVENTION With the enforcement of the Telecommunications Business Law, the installation of terminal equipment has been liberalized, and as a result, many telephones have been equipped with various functions.

Conventional telephone terminal devices that notify the call time start calculating the call time from the time the receiver is hung up or the dial is pressed, and either display the time or emit a dial tone after a certain period of time has elapsed. Ta.

Problems to be Solved by the Invention However, in the conventional configuration, the time point at which calculation of the call time starts is different from the start time of the actual call, resulting in a difference between the call time and the actual call time. Furthermore, when the call time is displayed on, for example, a liquid crystal display, the size of the telephone becomes large, making it difficult to apply this method to small-sized telephones such as foldable telephones. In addition, the #l configuration in which a dial tone is generated after a certain period of time has elapsed has the disadvantage that it is difficult to determine the duration of the call.

The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a telephone device that can measure the actual call time and transmit the time to the transmitting side or the receiving side by voice. do.

Means for Solving the Problems To achieve this object, the telephone device of the present invention includes a telephone line polarity reversal detector for detecting the actual call time;
It consists of a clock section that calculates the call time, and a voice synthesis section that converts the call time into voice and transmits it to the transmitter and receiver.

Effect: With this configuration, the actual call time can be transmitted to the transmitting and receiving sides by voice.

EXAMPLE An example of the present invention will be described below with reference to the drawings.

The figure shows a telephone device 9 circuit for notifying the call time by voice in the unfired-〇-embodiment. In the figure, 1 is a telecommunications equipment (telephone line), 2 and 3 are polarity reversal detectors of the telecommunications equipment 1, and 4 and 6 are controlled by the output signal of the detector 3 described above. This is a clock and voice synthesis section. 5 is a counter controlled by a signal from clock 4; A and 8 are switches for switching whether the audio signal from the audio synthesis section 6 is transmitted to the transmitting side or to the receiving side. Reference numeral 9 denotes an amplifier for sending the signal from the voice synthesis section 6 to the speaker 14 on the receiving side. 11 is a transmitting microphone, and the signal is sent to the telephone line 1 through an amplifier 12 and a coupling transformer 10. Also,
The audio signal from the line passes through the amplifier 13 and then flows to the speaker 14.

The operation of this embodiment configured as above will be described below.

In the telephone line 1, when not making a call, a is + and b is -. Therefore, the comparator 2 as a detection section outputs a high signal, and the collector of the transistor 3 is grounded to turn on the transistor 3. υ, clock 4
and the speech synthesizer e does not work. At this time, the + output of the comparator 2 is also input to the clock 4 and the reset terminal d of the speech synthesis section 6, and the clock 4 and the speech synthesis section e maintain their initial states. When a call is started, the polarity of line 1 is reversed, and a or b becomes 10. Therefore, the output of the comparator 2 becomes low, the collector of the transistor 3 becomes high, the clock 4 and the control input C of the speech synthesis section 6 become high, the clock 4 and the speech synthesis section 6 become high.
starts working. When the clock 4 starts operating, it sends a start signal f to the counter 5. The color/receiver 5 sends a signal g to the clock 4 at regular intervals. The clock 4 converts the signal into an elapsed time signal and sends it to the speech synthesis section 6. At this time, the audio synthesis section 6 converts the time signal from the clock 4 into audio and outputs it as an audio signal. The audio signal is transferred to line 1 by switch 7.8.
or to the speaker 14, and can be heard by the other party or by yourself. When the call ends, the polarity of the line 1 is reversed again, and the clock 4 and the voice synthesizer 6 are reset to their initial states after transmitting a call time signal.

In addition, by attaching a switch to the clock 4 and counter 6 and using the switch when the person in question wants to know the duration of the call, it is possible to output the duration of the call by voice.

As described above, according to this embodiment, by detecting the polarity reversal of the telephone line and using the clock and voice synthesis, it is possible to notify the actual call time by voice.

Effects of the Invention The present invention utilizes the reversal of the polarity of the telephone line to detect the duration of a call, thereby making it possible to detect the time from when both the transmitting and receiving parties pick up the handset until when one party hangs up the handset. Furthermore, by linking the voice synthesis and the clock, it is possible to realize an excellent call time notification function that allows the other party or yourself to know the call time during a call.

[Brief explanation of the drawing]

The drawing is a circuit diagram of a telephone device with a call time notification function according to an embodiment of the present invention. 1... Telephone line, 2, 3... Reverse change detector, 4, 5... Clock circuit, 6...
...Speech synthesis, memory and its control device. Name of agent: Patent attorney Toshio Nakao and one other person I
-Electronic rA communication fτy: Bei (telephone line 92.3-i-sense test field 4.5- clock circuit 6- voice synthesis route a, b - circuit C, d, f, '!- Glock , ↑A joint bath m signal

Claims (1)

[Claims] A detector that detects polarity changes in the DC voltage of a telecommunications line, a clock circuit that operates based on the input of the detection output signal of this detector, and a control device that extracts information from the speech synthesis memory using the output signal from this clock circuit. and a voice synthesizer that sends a voice signal to telecommunications terminal equipment or a telecommunications line in response to input of a control signal from the control device; 1. A telephone device with a call time notification function, characterized in that the telephone device is configured to transmit the time as an audio signal every time a certain period of time elapses.