JPS63313951A - Facsimile receiver - Google Patents

Abstract

PURPOSE:To swiftly switch to a telephone set by outputting ringback tone and responding the ringback tone to the caller side upon detecting push-button signals being transmitted from the caller side after the incoming of a call. CONSTITUTION:When a calling signal is detected, a callee station identification signal CED and a digital identification signal DIS are transmitted. When the caller is from a facsimile equipment, a prescribed facsimile reception processing is executed, image information is received which are outputted and recorded by a plotter 2. Also, at a push-button telephone terminals, if an operator depresses a specific push-button, signals for ringback tone from a buzzer 5 start to be outputted, and at the same time, a ringback tone generation circuit 10 is started to operate. In such a way, when push-button signals are transmitted from the caller side after the detection of an incoming call, the facsimile receiver alerts the operator and immediately enable the use of a handset 9, therefore, the waiting time on the caller side can be shortened.

Description

[Detailed description of the invention] [Technical field] The present invention relates to a facsimile receiving device.

[Prior Art] Generally, a facsimile machine connected to a public telephone line shares one line with a telephone.

Normally, when an incoming call is detected, the facsimile device is connected and a transmission control procedure for transmitting image information is started.

In this transmission control procedure, first, a called party responds with an identification signal, and when a predetermined transmission control procedure signal is transmitted from the calling party in response, one stroke information is transmitted.

Additionally, if a predetermined transmission control procedure signal is not sent from the calling party within a predetermined period of time after detecting an incoming call, the system determines that the calling party is a telephone terminal and instructs the operator to pick up the call. We are trying to issue a warning.

For this reason, conventionally, when a person tries to make a call by calling a telephone line connected to a facsimile machine, the person making the call has to wait until the facsimile machine is switched to a telephone. was occurring.

Note that the telephone line can always be connected to the telephone and the operator can manually switch to a facsimile machine if necessary, but this requires operator operations each time the facsimile machine is used, making the operator's operations complicated. This causes the inconvenience of becoming

[Objective] The present invention was made in order to eliminate the disadvantages of the prior art, and it is an object of the present invention to provide a facsimile receiving device that can quickly switch to a telephone.

[Configuration] In order to achieve this object, the present invention includes a push button signal detection means for detecting a push button signal, a ring tone output means for outputting a ring tone, and a ring back tone for generating a ring back tone. The device is equipped with a generating means, and when it detects that a push button signal is sent from the calling side after receiving a call, it outputs a ringing tone and responds to the calling side with a ringback tone.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows a facsimile receiving apparatus according to an embodiment of the present invention.

In the figure, a system control unit 1 controls the entire facsimile receiving device, a plotter 2 records and outputs received images at a predetermined resolution, and a decoder 3 converts received image information into a source. It decodes both signals.

The operation display section 4 is comprised of various operation keys and displays necessary for operating this facsimile machine, and is equipped with a buzzer 5 for outputting a ring tone or the like to alert the operator to answer the call. There is.

The communication control unit 6 is for executing a predetermined facsimile transmission control procedure to transmit images to the other party, and the modem 7 can use an analog line network such as a public telephone line as a transmission line. The network control device 8 is used to connect the facsimile device to the public telephone line network. Note that this network control device 7 is equipped with an automatic call receiving function.

The handset 9 is used by the operator for conversation, and the ringback tone generating circuit 10 generates a ringback tone to indicate that a ringing tone is being output. This ringback tone is output to the transmission signal input terminal of the network control device 8.

Also, a system control section 1, a plotter 2. The decoding section 3, the operation display section 4, the communication control section 6, the modem 7, and the network control device 8 exchange data with each other via the system bus 11. Also, the hook-on of handset 9/
The off signal is sent to the system control unit 1 via the system bus 11.
The control signal for the ringback tone generation circuit 10 that is input to the system bus 11 and output from the system control unit 1 is
transmitted via.

An example of the network control device 8 is shown in FIG.

In the figure, a DC detection circuit 81 is for detecting the DC loop current of a connected line and monitoring polarity reversal, and its detection/monitoring signal DD is output to the system control unit 1.

The transformer 82 insulates the signal on the line and converts it to DTM.
F (Dual Tone Multi Frequency
cy) is output to the detection circuit 83. DTMF
The detection circuit 83 detects a DTMF signal used as a push button signal and decodes its value, and the detection signal DT is output to the system control section l.

The calling signal detection circuit 84 receives the 16H signal output from the exchange.
The detection signal DC is used to detect the calling signal of
5 connects the line to a calling signal detection circuit 84 or transformer 8
This is for switching connection to system control unit 1.
It is controlled by the switching signal CH output from This line relay 85 is normally controlled to select the calling signal detection circuit 84.

The transformer 86 is for connecting to the 2-wire side connection end of the 2-wire/4-wire converter 87 with the line insulated. 2
The line 74 line converter 87 is for realizing bidirectional communication using a 2-wire line, and its 4-wire side connection end is
It is connected to a modem 7, a handset 9, and a ringback tone generation circuit 10.

The dial pulse sending relay 88 is for sending a dial pulse for calling the destination when making a call using the hunt set 9, and is controlled by the dial pulse control signal CP output from the system control unit 1. On/off is controlled. Note that this dial pulse sending relay 88 is always on.

With the above configuration, the system control section 1 and the communication control section 6 cooperate to perform the receiving operation as shown in FIG. 3.

That is, whether or not a call is made from any one of the exchanges and a paging signal is sent from the exchange is monitored by checking the detection signal DC output from the paging signal detection circuit 84 (No loop of judgment lot).

If the result of the judgment 101 is YES, the line relay 85 is switched to the transformer 86 side to form a DC loop (process 102), which is a standard callee station identification signal CED for notifying that the own terminal is a facsimile machine. A digital identification signal DIS is sent to notify the transmission function (process 10).
3).

Then, from the time an incoming call is detected until the T1 timer times out, it is monitored whether the calling side has sent out either the digital command signal DC3 or the push button signal for setting the transmission function. (Judgment 104
, 105, 106 No loops).

Here, when the calling party is a facsimile machine, the digital command signal DC3 is transmitted, so the result of determination 104 is YES. Thereby, a predetermined facsimile reception process (process 108) is executed to receive the image information,
The received image information is recorded and output from the plotter 2. Then, when the reception process is finished, it sends out a single line disconnection signal DCN (
Process 109), process 110) to restore the line relay 85
, returns to the initial reception standby state.

Further, when the calling party is a push button telephone terminal and the operator presses a predetermined push button, the DTMF detection circuit 83 outputs a detection signal DT.

As a result, the result of judgment 106 becomes YES, and the buzzer 5 starts outputting a ringing tone, and the ringback tone generation circuit 10 starts operating (processing 111
), L, Therefore, the operator of this facsimile receiving device hears the ringing tone and the operator of the calling party hears the ringback tone.

Then, until the T2 timer times out, it is monitored whether the handset 9 is off-hook or the polarity is reversed (No loop of decisions 112, 113, and 114).

When the operator hears the ringing tone and picks up the handset 9, off-hook is detected and the result of judgment 112 is YE.
S, the operation of the buzzer 5 and the ringback tone generating circuit 10 is stopped (process 115), and the operator waits until the operator ends the call, returns the handset 9, and goes on-hook (decision 116).

When on-hook is detected and the result of judgment 116 is YES, processing 110 is executed to restore line relay 85.

Also, if the operator is absent and the T2 timer times out (the result of decision 113 is YES), or if the operator on the calling side goes on-hook before then and a polarity reversal is detected (the result of decision 114 is YES), immediate processing 1
10 to restore the line relay 85.

Further, if the result of determination 107 is YES, the process moves to process 109.

In this way, when a push-button signal is sent from the calling party after an incoming call is detected, the facsimile receiving device calls the operator and immediately makes the handset 9 available for use, reducing the waiting time for the calling party. . Furthermore, during the call, the operator on the calling side can listen to the ringback tone and confirm the call, thereby reducing anxiety during the waiting time.

Further, when facsimile transmission is to be performed after a call between operators, by turning on the start key on the operation display section 4, it is possible to shift to a receiving operation.

Although the above-described embodiment does not include a so-called main telephone in order to realize silent incoming calls, the present invention can be applied even when a main telephone is provided.

Further, in the above embodiment, the push button signal is detected by the DTMF detection circuit, but if a circuit for detecting a 1300 Hz calling signal from the facsimile network is provided, this detection circuit may be used as the push button signal detection circuit. can be shared. In that case, the operator on the calling side operates the dial 215.8, which uses the frequency signal of 13661 (z) in the DTMF.

Furthermore, in the embodiment described above, when an incoming call is detected, the facsimile transmission control procedure signal is first responded, but it is also possible to have the operator on the calling side input a push button signal first. good.

Furthermore, the modem can be equipped with the function of a ringback tone generation circuit.

[Effects] As described above, according to the present invention, there are push button signal detection means for detecting a push button signal, ring tone output means for outputting a ring tone, and ring back tone for generating a ring back tone. Equipped with a generating means, when it detects that a push button signal is sent from the calling party after receiving a call, it outputs a ring tone and responds with a ringback tone to the calling party, so it can quickly switch to the telephone. Get the effect of being able to do something.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a facsimile receiving apparatus according to an embodiment of the present invention, FIG. 2 is a block diagram showing an example of a network control apparatus, and FIG. 3 is a flowchart showing an example of processing. l...System control unit, 4...Operation display unit. 5... Buzzer, 6... Communication control unit, 8... Network control device, 9... Handset, 10... Ring back tone generation circuit, 81... DC detection circuit, 82.8
6...Transformer, 83=DTMF (Dual Ton
e Multi Frequency) detection circuit. 84... Calling signal detection circuit, 85... Line relay,
87...2-wire/4-wire converter. Agent Patent Attorney Crest 1) Makoto ゛□Figure 1

Claims (1)

[Claims] In a facsimile receiving device equipped with an automatic call receiving function,
A push button signal detection means for detecting a push button signal, a ring tone output means for outputting a ring tone, and a ring back tone generation means for generating a ring back tone are provided. A facsimile receiving apparatus characterized in that when it detects that the facsimile has been sent, it outputs a ringing tone from the ringing tone output means and responds to the calling party with a ringback tone generated from the ringback tone generating means.