JPS5836869B2 - telephone - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a telephone set in which, when the called party is busy, the telephone automatically re-dials the same called party at regular intervals until the called party picks up.

Conventionally, when a telephone automatically re-dials and the other party picks up the handset, a lamp attached to the caller's telephone is turned on to notify the caller of this fact.

However, it is difficult to know when the communication path is connected.
Furthermore, if the receiver is slow to pick up the receiver after the call is connected, there is an inconvenience that the beginning of the receiver's voice cannot be heard by the caller.

Therefore, the present invention provides a telephone that can eliminate the above-mentioned drawbacks.

An embodiment of the present invention will be described below based on the drawings.

1 is an input device, which has push buttons for numbers 0 to 9 and for repeat.

2 is a memory that stores the string of numbers dialed by operating the input device 1, 3 is a controller for automatic dialing, and 4 is a receiver 5 is a voice response device that, for example, outputs the sound "I got a call" in the form of PCM. The digital signal is digitally coded and stored in a digital memory, etc., and read out from the digital memory as needed. The digital signal is converted to the original analog audio waveform via a digital-to-analog converter.
is configured to output .

6 and 7 are amplifiers, 8 is a speaker, 9 is a microphone,
Reference numeral 10 is a certain transmission path from an exchange, etc., and 11 is a receiver telephone, which has the same structure as the caller telephone set configured from 1 to 9 above.

First, when the receiver 4 of the caller's telephone is picked up (ready to make a call), the receiver's telephone number is input using the push-tone buttons O to 9 of the input device 1, and the input telephone number is sent to the transmission line 10. Upon sending, the memory 2 is directed by the controller 3 to store the entered telephone number.

The exchange of the transmission line 10 into which the telephone number has been input calls the recipient telephone corresponding to the telephone number.

If the recipient telephone 11 is busy, the caller operates the repeat push button on the input device 1 and then hangs up the receiver 4.

Then, the controller 3 reads the telephone number from the memory 2 at predetermined time intervals and sends it to the transmission path 10 until the receiver's telephone receiver is picked up, and attempts to call the receiver's telephone 11 which was busy. .

After that, when the handset of the recipient telephone 11 is picked up,
The transmission line 10 between the caller's telephone and the receiver's telephone becomes available for communication.

At this time, the voice response device 5 starts working when the receiver of the receiver's telephone is picked up, and outputs a loud voice saying "I'm on call" through the amplifier 6 and the speaker 8 in order to inform the caller that the call is available. Output as voice and also transmit through transmission line 10
When the recipient's telephone 11 becomes ready for conversation, it is configured to amplify the voice transmitted from the recipient's telephone 11 via the amplifier 6 and the speaker 8.

Furthermore, the microphone 9 and the amplifier 7 are configured to be able to reject the caller's voice with high sensitivity and transmit it to the receiver's telephone 11 when the transmission line 10 becomes ready for communication.

In the meantime, when the handset 4 of the caller's telephone is picked up, the operating forces of the amplifiers 6 and 7 are dynamically shifted to a stopped state, and the handset 4 and the receiver's telephone 1
The communication path is switched to enable conversation between one handset.

FIG. 2 shows a specific circuit example of the controller 3, with 20, 2
3 is an AND gate, 21 is a one-shot multi-by-break, 22 is an R-S flip-flop, 24 is an inverter, 25 is a terminal for outputting a trigger signal for starting operation of the voice response device, 26 is an amplifier 6, a transmission line 10, and an amplifier. 7 is a terminal that outputs a signal to close a switch (not shown) interposed between the receiver 4 and the transmission line 10;
and a switch (not shown) interposed between the transmission line 10 and the transmission line 10.
Terminal 28 outputs a signal to close the transmission line 10.
29 is a terminal to which a signal indicating that the telephone line is in a connected state is input from the exchange of the transmission line 10; 29 is a terminal to which a signal indicating that the repeat push switch of the input device 1 is being operated; 30 is logic level "1" when the handset 4 is placed on the caller's telephone body.
' is input terminal, 31 is R-S flip-flop 2
A reset pulse is input to the reset terminal 2 when the telephone conversation ends and the handset 4 is hung up.

Because of this structure, when a call is busy, the caller will be automatically dialed repeatedly, and when the caller is connected, the caller will be notified of this via voice or voice, and the call will be automatically dialed and the call path will be established. Once connected, it is possible to communicate via the loudspeaker 8 and microphone 9 until the caller picks up the handset of the caller's phone, so it is possible to reliably notify the caller that the phone is ready for a call. It is also possible to prevent interruptions in the call until the caller picks up the receiver.

As explained above, according to the present invention, automatic dialing means repeatedly calls the recipient telephone when the communication path is busy; means for amplifying the voice from the recipient telephone until the receiver picks up the handset of the caller telephone when the call path is connected, and the call path between the receiver telephone and the caller telephone is connected. When this happens, we have provided a means to transmit the voice input through the microphone installed on the caller's phone to the recipient's phone until the caller picks up the handset. When the communication path is connected by making a call, the communication can be continued even before the caller picks up the handset, thereby preventing interruptions in the communication.

Further, by configuring the system so that the connection state of the communication path is announced by the voice response means, it is possible to clearly inform the caller that the communication is possible.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a telephone system configuration diagram, and FIG. 2 is a specific circuit diagram of a control section in FIG. 1. 1...!・Input device, 2...Memory, 3.
...Controller, 4...Receiver, 5.
...Voice response device, 6,7...Amplifier,
8...Speaker, 9...Microphone, 10...Transmission line, 11...Recipient telephone.

Claims (1)

[Scope of Claims] 1. automatic dialing means for repeatedly calling a receiver's telephone when a communication path is busy; amplifying means for amplifying the voice from the receiver telephone until the caller telephone picks up the handset when the call path is in a connected state; and a speech path between the receiver telephone and the caller telephone is in a connected state. The present invention is characterized by providing means for transmitting the voice input through a microphone disposed on the caller's telephone to the receiver's telephone until the caller's telephone receiver picks up the handset. telephone. 2. The telephone according to claim 1, characterized in that the connection state of the communication path between the receiver's telephone and the caller's telephone is announced by voice response means.