JPH0779386B2 - Counterparty model identification method for automatic telephones - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] The present invention relates to a destination telephone type identification method for an automatic telephone capable of identifying the telephone model of the other party to communicate with. With the function of identifying, for the purpose of providing an automatic telephone that enables smooth communication, an automatic transmission means for making a call to a connected line,
An automatic telephone receiving means for receiving an incoming call, a telephone transmitting / receiving means, an automatic telephone equipped with a modem function for performing data communication using a carrier, a line monitor for detecting a signal on the line and a level of the signal, A phase inversion signal transmission circuit for generating and transmitting a signal with the phase of the received line signal inverted, and an incoming response circuit for generating an incoming response signal for an incoming call.

[Industrial application field]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a destination telephone type identification system of an automatic telephone capable of identifying the telephone model of the other party to communicate with.

Ordinary telephones commonly used in homes and offices and automatic telephones having a data communication function and a function as an ordinary telephone are connected to the same line for communication and communication.

If the two telephones communicating with each other are of the same type, they can utilize each other's functions to establish a smooth connection and communicate.

However, if the models are different, the handling of calls differs from each other, which may cause operational discrepancies at the time of connection, and even the connection of the telephone may become impossible.

Therefore, there is a demand for a method in which an automatic telephone having an automatic call-in / out function can smoothly connect to a normal telephone and make a call.

[Problems to be solved by conventional technology and invention]

Conventionally, a terminal device that performs data communication has a function to automatically make and receive an incoming call. The receiving side sends a carrier from a modem for an incoming call, and the calling side detects the carrier and recognizes the line connection. Then, the communication data is transmitted.

That is, there is no human intervention in connecting and communicating both devices.

However, when an automatic telephone equipped with such a data communication function is used to make a call and the ordinary telephone receives the call, the ordinary telephone usually has no expected voice response means and has no choice but to disconnect the line.

The present invention was created in view of the above circumstances, and an object of the invention is to provide an automatic telephone having a function for the automatic telephone to identify the model of the other party's telephone and enabling smooth communication. There is.

[Means for solving problems]

In order to achieve the above-mentioned object, an automatic transmission means, an automatic reception means, a transmission / reception means of an ordinary telephone, an automatic telephone equipped with a modem function, and a line monitor for detecting a signal on a line and a level of the signal. , A phase inversion signal transmission circuit for generating and transmitting a signal with the phase of the line signal inverted, and an incoming response circuit for generating an incoming response signal.

[Action]

When the automatic telephone becomes the calling side, first, when a call is made and the other party sends some response signal, the phase inversion signal sending circuit generates and sends the phase inversion signal of the answer signal.

Signals of normal and reverse phases cancel each other out on the line and the signal level suddenly changes and drops.

If the other party is an automatic telephone, this change is detected by the line monitor and the carrier is transmitted. Therefore, it is possible to identify the other party as the automatic telephone by detecting this carrier.

If the other party is an ordinary telephone, voice is input as the response signal and no carrier is sent even if the inverted signal is sent, so if the carrier is not detected within the specified time, the other party Identify it as an ordinary telephone.

Then, when the automatic telephone becomes the receiving side, the incoming response circuit sends a response signal to the incoming call, and when the line monitor detects a sudden change in the signal level on the line, the other party uses the automatic telephone. Identify as present.

Also, when the incoming call response signal is transmitted and the line monitor does not detect a sudden drop in the signal level on the line, the other party is identified as an ordinary telephone.

〔Example〕

FIG. 1 is a block diagram showing the configuration of one embodiment of the other party model identification system for an automatic telephone according to the present invention.

As shown in FIG. 1, as the internal configuration of the automatic telephone 10,
A control circuit 1 controls the functional elements in the telephone.

Reference numeral 2 denotes an NCU, which has an automatic transmission means 21 and an automatic reception means, that is, means for automatically executing a transmission / reception procedure such as on-hook, off-hook operation, dial operation, and the like. Switch connection of line signals.

3 is a line monitor, which constantly monitors the line,
The presence or absence of a signal or the signal level is monitored.

Reference numeral 4 denotes a phase inversion signal sending circuit, which inverts the phase of the signal on the line and sends it to the line.

A modem 5 has a function of transmitting a carrier, modulating communication data to be transmitted with the carrier, and transmitting the modulated communication data.

Reference numeral 6 denotes a voice generation circuit which generates a synthesized human voice as an incoming call response signal or reproduces a recorded voice.

Reference numeral 7 denotes a transmission / reception means having the same transmission / reception function as a normal telephone.

Then, the automatic telephone is connected to the other party's telephone through the exchange or the exchange.

The operation of the automatic telephone shown in FIG. 1 will be described below with reference to the flowchart of the operation of the automatic telephone shown in FIG.

Fig. 2 (a) shows the case where the automatic telephone is the originating side.
a) The NCU 2 automatically goes off-hook by the automatic transmission means 21 and transmits a dial signal.

(2a) The line monitor 3 waits for an incoming call response signal from the other party to detect an incoming call.

(3a) The phase inversion signal transmission circuit 4 generates and transmits an opposite phase signal of the incoming response signal from the other party.

(4a) The line monitor 3 waits for the transmission of the calling carrier from the other party, and when the calling carrier is detected, it is determined that the other party's telephone is an automatic telephone.

Then, the modem 5 sends out a calling carrier to start data communication.

(5a) A predetermined time from the time when the incoming call response signal was sent, eg 900m
If S is monitored and no carrier is detected on the line monitor 3, it is determined that the destination telephone is an ordinary telephone.

Then, the transmitting / receiving means 7 makes a call as an ordinary telephone.

Fig. 2 (b) shows the case where the automatic telephone is the receiving side.
b) NCU2 detects the call signal from the exchange.

(2b) The automatic call receiving means 22 automatically goes off hook.

(3b) The voice generation circuit 6 sends an incoming call response signal.

(4b) The line monitor 3 detects that the signal level suddenly changes and drops.

By detecting a sudden change in the signal level, it is determined that the other party's telephone is an automatic telephone.

Then, when the calling carrier is transmitted and the calling carrier from the partner is detected, the data communication is started.

(5b) Sending an incoming call response signal for a predetermined time, for example, 700m
If the carrier is not detected on the line monitor 3 by monitoring S, it is determined that the destination telephone is an ordinary telephone.

Then, the transmitting / receiving means 7 makes a call as an ordinary telephone.

Next, with reference to FIGS. 3 (a) to 3 (c), the operation of the automatic telephone which identifies and communicates with the model of the destination telephone will be described in more detail.

FIG. 3 (a) shows a case where the automatic telephones are connected to each other. When the calling automatic telephone sends a dial signal, the exchange station selects the called party and a call signal is sent.

The receiving side detects the calling signal and automatically performs on-hook operation.

Then, the voice generation circuit 6 sends a voice such as “Yes, XX section” as a response signal to the line.

On the transmitting side, the line monitor 3 detects a voice response on the line, and the phase inversion signal transmission circuit 4 generates a reverse phase signal of this voice response and transmits it to the line.

The signal level on the line drops sharply due to this anti-phase signal.

The line monitor 3 on the receiving side detects that the signal level on the line is lowered and determines that the other party is an automatic telephone.

Therefore, the receiving side connects the line to the modem 5 and sends out the carrier.

The calling side detects the carrier and determines that the called side is an automatic telephone.

As described above, both automatic telephones are connected to each other, and data transmission and reception are started mutually.

FIG. 3 (b) shows a case where the calling side is an automatic telephone and the receiving side is an ordinary telephone.

The calling party performs the above operation.

The called party detects the call signal and a person performs an off-hook operation.

Then, normally, a response such as "Hello" is given.

The calling party performs the above operation.

The called party hears his voice from the transmitter on the receiver,
No problem.

Since the carrier has not been detected even if the carrier has passed for a certain period of time, it is determined that the other party is an ordinary telephone.

Both phones talk as ordinary phones.

FIG. 3 (c) shows a case where the calling side is an ordinary telephone and the receiving side is an automatic telephone.

When the dialing signal is sent from the calling side ordinary telephone, the exchange side selects the called side and the calling signal is sent out.

The receiving side detects the calling signal and automatically performs on-hook operation.

Then, a voice such as "Yes, XX section" is sent from the voice generating circuit to the line as a response signal.

Even if this response signal arrives at the transmission side, since the phase inversion signal transmission circuit 4 is not provided, the line monitor on the reception side cannot detect a decrease in the signal level on the line.

Therefore, the receiving side determines that the destination is an ordinary telephone.

The voice generation circuit 6 sends out a voice signal for a time connection such as "please wait for a while", while emitting a ringing tone from its own telephone.

Both phones talk as ordinary phones.

〔The invention's effect〕

As described above, according to the present invention, regardless of whether the communication between the automatic telephone and the ordinary telephone is the originating side or the terminating side, it is possible to make a smooth call without causing any discomfort on the ordinary telephone side. It is possible and industrially extremely useful.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a destination model identification system of an automatic telephone according to an embodiment of the present invention, FIG. 2 is an operation flowchart of FIG. 1, and FIG. 3 is an operation of the automatic telephone. It is a figure explaining. In the figure, 1 is a control circuit, 2 is an NCU, 3 is a line monitor, 4 is a phase inversion signal generation circuit, 5 is a modem, 6 is a voice generation circuit, and 7 is a circuit.
Is a transmitting / receiving means, 21 is an automatic transmitting means, and 22 is an automatic receiving means.

Claims (1)

[Claims] 1. Automatic transmission means (21) for making a call to a connected line and automatic reception means (22) for an incoming call.
And a line monitor (3) for detecting a signal on the line and a level of the signal in an automatic telephone equipped with a transmitting / receiving means (7) of a normal telephone and a modem function (5) for performing data communication using a carrier. ), A phase inversion signal transmission circuit (4) for generating and transmitting a signal in which the phase of the received line signal is inverted, and an incoming response circuit (6) for generating an incoming response signal for an incoming call, If the phone is calling,
The presence or absence of a carrier transmitted from the other party is detected, and when the incoming call is received, the presence or absence of a change in the signal level on the line by the phase inversion signal transmission circuit (4) is detected and the other party's telephone is identified as an automatic telephone or an ordinary telephone. The other party model identification method for automatic telephones.