JPS63306754A - Facsimile equipment with telephone/fax remote switching function - Google Patents

Abstract

PURPOSE:To turn on a buzzer to alarm for an operator and to restart a facsimile equipment by constituting the titled equipment so that it detects a second dial signal from a bush-button telephone set during a waiting time for a response signal from the opposite after the automatic in coming of facsimile equipment. CONSTITUTION:In a waiting state, a subscriber's line is connected to a telephone set 11 via an NCU 12; the telephone set 11 is disconnected when a ringer signal is inputted, and a call arrives at the facsimile equipment to operate a modulator/ demodulator circuit 14. A signal (a) received during the waiting time for a response from the opposite is outputted to a DTMF tone detection circuit 22. When the signal (a) is recognized as an effective DTMF tone signal,a DTMF detection signal (c) is turned on, and a pertinent dial number code signal (b) is outputted. The signals (b), (c) are analized by a control part 21, and when the operation mode is determined, a response signal transmission request (f) is issued to inform the opposite office of that a second dial signal has been recognized. Thereafter, a monitor circuit control signal (d) or a buzer circuit control signal (e) is turned on.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile machine, and more particularly to a facsimile machine having an automatic M-mail function 1&:.

[Conventional technology]

Conventionally, facsimile machines with this type of automatic receiving function detected a ringer signal and automatically activated the facsimile machine to receive a call. The configuration was such that only communication was possible.

[Problem that the invention seeks to solve]

As mentioned above, the conventional facsimile machine with automatic call reception function detects a ringer signal and automatically receives the signal after t. Convey messages to friends,
There was no way to call an operator on the phone.

For this reason, when using one telephone line for both a facsimile and a telephone, it is unclear whether the caller's M1 line is intended for facsimile communication or for a telephone call, so the automatic call receiving function is enabled. The problem was that it was not available for use.

[Means to solve all problems]

A facsimile device with a telephone/FAX remote switching function according to the present invention, a push-button telephone with a digital
A multi-7 frequency (DTMF) dial tone detection circuit, a buzzer ringing circuit to call the operator, a speaker circuit to monitor the voice of the other operator, and a DTMF
MF) -7 Analyzes the number on the second dial from the detection circuit and extracts it from the control section that drives the buzzer sounding circuit and speaker circuit.

〔Example〕

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

FIG. 1 is a block diagram of an embodiment of the present invention.

In the figure, 11 is a telephone, 12 is a network control unit (NCU), 13ti is a no-brit circuit (HYB), and 14 is a modulation/demodulation circuit (MDM). This is the circuit configuration. Further, 21 is a control unit (CNT), 22
tiDTMF)-on detection circuit (DE'r), 23 is a monitor circuit R (AMP), 24 is a monitor speaker, 25 is a buzzer anti-1 path (BU), 26 is a buzzer, and these 21
26 are circuit configurations for the present invention. The respective blocks are all known circuits, for example, the L)TMF)-on detection circuit 22 (DE'l') is one that is widely used in conversion a town.

Next, the operation of this block diagram will be explained.

In the standby state, the subscriber line is connected to the iE 1iKffl through the NCU 12t, and when a ringer signal is input, the telephone 11tvJ is released and a facsimile arrives and the modulation/demodulation circuit 14 begins to operate. When waiting for a response from the other party, receive 1! The received signal a is a DTMF)-on detection circuit 22.
Here, when the DTMF detection signal is recognized as a valid signal, the DTMF detection signal is ONt, .
The dial number code signal at that time is output. Once the bee signal is analyzed by the control unit 21 and the operation mode is determined, a response signal (ACK) transmission request ft-0N is sent to the modulation/demodulation circuit 14 to notify the other station that the second dial signal t- has been recognized. . Thereafter, if circuit monitoring is to be performed depending on the operating mode, the monitor circuit control signal di-ON is turned ON, and if an operator is to be called, the buzzer circuit control signal e is turned ON.

FIG. 2 is an enlarged diagram showing the operation of the DTMF)-on detection circuit 22. FIG. As mentioned above, DTMF is applied to input signal a)-
DTMF detection signal)
8 is turned on and the recognized dial number code signal is output. However, since the DTMF tone detection circuit 22 may malfunction with voice signals or facsimile signals, the second dial is determined based on a combination of two or more digits. Here, if you want the calling buzzer to sound, dial ""1" +
1", and 12 when operating the monitor/speaker.
If you want to restart facsimile reception, use @3"+1". If the first digit is recognized and the statement is written, the second digit cannot be recognized within a certain period of time. , the input at this time is invalidated.

Next, the actual operation will be explained using FIG. 1 as an example and the signal flows shown in FIGS. 3 to 5.

FIG. 3 shows the retransmission sequence of initial identification signals (NSF, C8I, DIS) when a facsimile machine automatically receives a call. Note that the facsimile control procedure conforms to the communication control procedure of CCITT Recommendation 10.

Generally, the response signal waiting time from the calling station side (A), (B
).

(q is fixed at 3 sec, but in this section DT
Since the MF detection circuit 22 detects the DTMF)-on of the second dial, the time (5) until the first retransmission is 5.9 seconds.
Consideration should be given to making it easier to make calls using the second dial. The calling party only has to dial the second dial between the initial identification signals of the automatically received facsimile.

Figure 4 (al) and (b) are the signal flow of the ringing buzzer operation, (a) is when the operator answers the ringing buzzer, and (b) is the facsimile that the operator issues again using the second dial. When resuming communication, the caller receives the first initial identification signal (NSF, C8I).

DIS)", and while waiting for the response signal, press the push button to press the second dial 11" + 1" gold dial. The DTMF detection circuit 22 of the called station facsimile detects this, the control unit 21 recognizes the dial number 1r, and ACKs)
-n' (from i-modulation/demodulation circuit 14) IYB13°NCU
12 to the calling station, and the calling buzzer 26 is sounded. :When the operator answers the call (hook-off) at the M call station, the ringing buzzer is stopped and the call is switched to the St-telephone side, allowing the operator to talk.

If you wish to resume facsimile communication (Fig. 4 (b)), the calling station should press the button 1 and press the second dial 13''+1*''. Dial. The called station facsimile then ACKs)
The machine sends a message to the calling station, stops the ringing buzzer, and sends the initial identification signal again to become ready for facsimile communication.

Figures 5 (a) and (b) show the signal flow of the monitor/speaker operation, and (a) shows the signal flow when the operator hears the monitor/speaker operation and answers the call.
-Ta gives out.

This is a case where facsimile communication is resumed using the second dial.

When the calling station dials the second dial 12"+1*" to the facsimile response signal waiting area, the called station 7 recognizes this, sends an ACK tone, and relays the transmission of the facsimile signal and monitors it.・Turn on the speaker and monitor the line.

In this state, the voice of the caller on the telephone can be monitored through the speaker. (One-way call) When monitoring the line, the operator on the call center side is 1! When you pick up the conversation, it becomes a talking state (Figure 5 (
a)). Resumes facsimile communication issued by the operator at the shoulder station* If IAb, the calling station uses the pushbutton/button IE
Dial the second dial g"3" + 1 year old on the t fortune teller.

The layer calling station facsimile machine recognizes this and sends an ACK) to the calling station, and again sends an identification signal to enter the facsimile communication ready state.

〔Effect of the invention〕

As explained above, the present invention calls the operator by detecting the second dial (DTMF) of the push-button telephone during the wait time for a response signal from the other party after the 7-ac milli device automatically receives a call. Sound the buzzer or set the monitor speaker to (1) for one-way communication.
After L7t, facsimile communication can be resumed.

Therefore, if you set the facsimile device to your own IJIJJ, if the other party is for facsimile communication, the facsimile IJ communication 1d is OT function, and if the other party is for telephone communication, you can use the pushbutton/button phone. By dialing the second dial, the call buzzer or monitor speaker is operated, and the operator can easily switch to a telephone call.

[Brief explanation of drawings]

Figure 1 shows block 1 of an example S of the present invention, and Figure 42 shows block 1.
A timing chart diagram showing the operation of the L)TMF)-on detection circuit used in the figure, FIG. 3 is an initial identification signal retransmission 7
- Signal flow diagrams showing signals, Figure 4 (a), (b)
) are the signal flow diagrams for the call buzzer operation, and FIGS. 5-) and (b) are the signal flow diagrams for the line monitor operation, respectively. 11...'l1lE phone, 12...
・Network control (NCU), 13-”...
...Hybrid circuit (HYB), 14...Modulation/demodulation circuit (MDM), 21...Control unit (CNT
), 22 Kawakawa DTMF)-on detection circuit (DET), 23
・Old...Monitor circuit (AMP), 24...Monitor speaker, 25...Buzzer circuit Figure 3 Procedure amendment (method) 62 .9.17 1988 Hinoki - Director-General of the Office of Patents 1, Incident Indication 1988 Patent Application No. 14361
No. 0 2, Title of the invention Telephone/FAX with remote switching function 3, Person making the amendment 77 / '/ S")"1
Relationship to the case Applicant: 33-1-4 Shiba 5-chome, Minato-ku, Tokyo; Agent: Sumitomo San, 37-8 Shiba 5-chome, Minato-ku, Tokyo 108
I] Birushi 1 No. & Date of amendment order August 25, 1986 (shipping date) 6, Page 6 L of the specification subject to amendment Replace page 6 of the specification of contents of amendment with the attached document.

Claims (1)

[Claims] For facsimile machines with automatic call receiving function, push
A circuit that detects the two-frequency signal tone of the button/dial, a buzzer circuit that calls the operator, a speaker circuit that monitors the voice of the other operator, and a circuit that detects the two-frequency signal tone of the button/dial. Means for controlling the buzzer ringing circuit to ring a buzzer by analyzing the second dial number, or controlling the speaker circuit to monitor the voice of the calling station operator from the speaker by analyzing the number. A facsimile device with a telephone/FAX remote switching function.