JPS61276459A - Reservation display telephone system - Google Patents

Abstract

PURPOSE:To give the right of talking start to the called party by providing a reception circuit and a control circuit or the like for a polarity inverting pulse or an MF signal to a telephone set and allowing a converter to transfer a caller data to a called party according to a signal from a subscriber in the form of a polarity inversion pulse or an MF signal thereby informing the presence of a call and its content to the called party. CONSTITUTION:The telephone number of a caller is sent in the form of a polarity inversion pulse of an MF signal by the hooking-off of a telephone set. The signal is received by a reception circuit 4a and stored in an additional memory 8a. A control circuit 6a reads a signal stored in the memory 8a, inputs the signal to a latch circuit 10 and displays on a display device 12 via a drive circuit 11 or raises a buzzer 13 to inform the incoming call to a called party. Further, the control circuit 6a lights a lamp 7a in a button matrix when the telephone number of the caller stored in the additional memory is a telephone number stored in the memory 8. Thus, it is possible for the called party to reply or not depending on its convenience.

Description

[Detailed Description of the Invention] [Summary] A two-wire signal transmitting/receiving circuit connects a telephone and an exchange, and the exchange transmits the calling party's telephone number to the called party. By adding a function that can recognize and display the information, the called party can know whether there is a called party and the telephone number of the calling party, and the called party can start a conversation.

[Industrial application field]

The present invention relates to a telephone capable of displaying reservations.

Conventional telephone systems have the disadvantage that the call is initiated unilaterally based on the convenience of the caller, without any consideration being given to the convenience of the called party, and improvements in this area have been strongly desired.

[Conventional technology]

FIG. 3 is a diagram showing an example of a conventional telephone equipped with functions such as automatic dialing.

In the figure, 1 is a subscriber line, 2 is a hook switch, 3 is a hybrid, 3A is a balanced circuit, 4 is a calling signal receiving circuit, and 5
1 is a signal sending circuit, 6 is a control circuit, 7 is a button matrix, 8 is a memory, 9R is a receiver, and 9T is a transmitter. The same symbols represent the same objects throughout all the figures below.

The subscriber line 1 is a two-wire line consisting of an A line and a B line, and receives speech current and voice signals from the exchange, and transmits voice signals from the telephone set.

When the hook switch 2 is closed, the subscriber line 1 is connected to the handset 9R1 and the transmitter 9T via the hybrid 3, so that a call can be made.

The ringing signal receiving circuit 4 is called a telephone bell circuit or tone ringer, and has a voltage of 20 to 1611z, 70 to 90Vrms.
This device rings in response to a signal such as, and notifies the called party of the presence or absence of an incoming call. ' As for the auto dial function, when the telephone number of the other party is stored in the memory 8 in advance and the button of the button matrix 7 is pressed, the control circuit 6 is activated and the telephone number of the other party is pre-stored in the memory 8.
is driven to send a calling signal to the subscriber line 1. Therefore, by pressing one button, the calling operation is completed.

In the above-mentioned conventional telephone system, as is well known, a call begins when the calling party dials the telephone number of the called party, and the exchange receives this dialing signal, calls the called party, and then calls the called party. After receiving a response from the caller, a communication path is established with the caller, and a conversation is made.

[Problem that the invention seeks to solve]

As described above, in conventional telephone systems, a call is initiated unilaterally based on the caller's convenience, and the callee's convenience is not taken into account at all.

Therefore, from the perspective of the called party, there is a problem in that even when the called party is busy, he or she must interrupt work and respond.

There is also the problem of having to dial a called party many times when the called party is absent from the calling party's point of view.

The object of the present invention is that when a telephone set and an exchange are connected by two wires, the exchange sends a called party not a ringing signal but an inverted pulse, an M
The called party is contacted by the caller by calling with an F signal, etc., sending the caller's phone number and data, and adding a function to the telephone to receive, store and display the signal. To provide a reservation display telephone system capable of notifying the called party of the call and giving the called party the right to start a call.

(Means for solving problems) The above problem is solved by the following means.

In other words, the telephone is equipped with a receiving circuit (4
a), an additional memory (8a) and a display (12) are provided, and the exchanger is equipped with a transmission circuit (23) for transmitting polarization pulses or MF signals, etc.
), and when a call is made from the telephone, the exchange transmits the telephone number of the calling telephone and data from the calling telephone to the called telephone using the transmission circuit (23) of the polarization pulse or MF signal, etc. In the called telephone, the telephone number of the calling telephone and data from the calling telephone are received by the receiving circuit (4a) for the polarization pulse or MF signal, etc., and the telephone number is added to the telephone. After storing it in the memory (8a), the display device (12)
to notify the called telephone and display the reservation.

[Effect]

According to the present invention, a telephone set is provided with a receiving circuit, a memory circuit, a control circuit, etc. for polarity inversion pulses or MF signals, and the exchange transmits the data of the calling party to the called party using the polarity inversion pulse or the like. By transmitting the information in the form of a signal such as , MF signal, etc., it is possible to notify the called party of the presence or absence of a call and its contents, thereby giving the called party the right to initiate a call. An effect is produced.

〔Example〕

FIG. 1(a) is a block diagram of one embodiment of a telephone according to the present invention.

In the figure, 4a is a signal receiving circuit, 6a is a control circuit, 7a is a button matrix 7 built-in lamp, 8a is an additional memory, 10
is a latch circuit, 11 is a drive circuit, 12 is a display,
13 is a buzzer.

Making a call with this telephone is exactly the same as with a conventional telephone, but when receiving a call, the ringing signal mentioned in the section of the prior art is not sent from the exchange, and instead the caller's telephone The number is sent in the form of a polarization pulse or MF flaw signal.

The signal receiving circuit 4a is a receiving circuit for the above signal, and an additional memory 8
a is a circuit that stores the above signal.

Further, the control circuit 6a according to the present invention not only controls the operation of the signal sending circuit 5, the signal receiving circuit 4a, the memory 8, the additional memory 8a, the button matrix 7, etc., but also controls the above-mentioned signals stored in the additional memory 8a. is read out and input to the latch circuit IO, and then sent to the display 12 via the drive circuit 11.
It also has the function of notifying the called party of the incoming call by sounding the buzzer 13.

The control circuit 6a can also turn on the lamp 7a built into the button matrix 7 if the caller's telephone number stored in the additional memory 8a is the same as the telephone number stored in the memory 8.

Therefore, the called party can answer or not at his own convenience. Of course, it is possible to respond at the same time as the call arrives, or it is also possible to press the button matrix 7 later to drive the signal output path 5 and make a call for response.

At this time, the caller's telephone number displayed on the display 12 is automatically deleted.

As explained above, it is possible to start a call at the convenience of the called party, and it is possible to reserve and confirm the call without going off-hook from the receiver common to both the calling party and the called party.

FIG. 1(b) is a diagram showing an outline of an exchange according to the present invention.

FIGS. 2A to 2C are transmission and reception signals of the exchange according to the present invention.

In the figure, 20 is an exchange according to the present invention, 21a, 21b
.

21c and 21d are telephones according to the present invention, 22 is a conventional subscriber circuit, and 23 is a polarity reversal pulse (or MF flaw signal transmitting circuit).

The exchange 20 according to the present invention is also the same as the conventional exchange.
1c, 21d, etc.), but a polarity reversal pulse (or MF flaw signal transmitting circuit 23 is added to the subscriber circuit 22 and a call is made from any telephone, and the destination signal "D" ( When a dial signal (dial signal) arrives, it performs the same operation as a conventional exchange, and finally, instead of sending a ringing signal to the called party, it sends out a calling party signal "A" (calling party's telephone number).

At this time, the exchange 20 operates the polarity reversal pulse (or MF flaw signal transmission circuit 23 to convert it into a polarity reversal pulse (or MF flaw signal) and sends it to the subscriber line.

The present invention does not stop at the caller's phone number in the car, but also allows
As shown in Figure 2 (fb), the system receives data signals from the caller, such as the desired time for a response, a simple message, etc., and sends these signals as shown in Figure (C). Caller signal “A”
” and sends it to the called party and displays it on the other party's display 1.
2, increasing the flexibility of reservation methods.

〔Effect of the invention〕

As explained in detail above, according to the present invention, the called party can initiate a call at his or her own convenience, and the calling party does not have to dial an absent called party many times, which is a great effect. be.

[Brief explanation of the drawing]

FIG. 1(a) is a block diagram of one embodiment of a telephone according to the present invention. FIG. 1(b) is a diagram showing an outline of an exchange according to the present invention. FIGS. 2(a) to 2(c) show the transmitted and received signals of the exchange according to the present invention. FIG. 3 is a diagram showing an example of a conventional telephone equipped with functions such as automatic dialing. In the figure, l is a subscriber line, 2 is a hook switch, 3 is a hybrid, 3A is a balanced circuit, 4 is a calling signal receiving circuit, and 5
is a signal sending circuit, 6 is a control circuit, 7 is a button matrix, 8 is a memory, 9R is a receiver, 9T is a transmitter, 4a is a signal receiving circuit, 6a is a control circuit, 7a is a lamp built into the button matrix 7, 8a is a Additional memory, 10 is a latch circuit,
11 is a drive circuit, 12 is a display, 13 is a buzzer,
20 is an exchange according to the present invention, 21a, 21b, 21
c and 21d are telephones according to the present invention, 22 is a conventional subscriber circuit, and 23 is a polarity reversal pulse (or MF signal etc. transmission circuit. #tU<h)

Claims (1)

[Claims] A receiving circuit (4a) for receiving a polarity reversal pulse or MF signal, etc. in a telephone.
, an additional memory (8a), a display (12), and a transmission circuit (23) for polarity reversal pulses or MF signals, etc., in the exchange, and when a call is made from the telephone, the exchange receives the telephone number of the calling telephone. and sends the data from the calling telephone to the called telephone using the transmission circuit (23) such as the polarization pulse or MF signal, and the called telephone transmits the telephone number and the telephone number of the calling telephone. The data from the calling telephone is received by the receiving circuit (4a) for the polarity inversion pulse or MF signal, and is stored in the additional memory (Ba).
) is stored in the display device (12) and displayed on the display device (12).