JPH06164888A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To provide a facsimile equipment in which a facsimile reception can be obtained by the hook operation of an accessary telephone set. CONSTITUTION:An incoming call is present (S1), the off-hook of the accessary telephone set is operated (S2), and a communication is valid (S3). When the incoming call is the facsimile, or when the communication is ended, the on-hook of the accessary telephone set is operated (S4), the line is switched to a facsimile part, and a facsimile procedure is started (S5). One or two times of transmission of a CED and a DIS is operated (S6). Then, a DCS is detected (S7), and a reception processing is operated (S8).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile machine, and more particularly to a facsimile machine having an attached telephone.

[0002]

2. Description of the Related Art In a facsimile machine equipped with an attached telephone, a telephone call can be made and received from the attached telephone, and it can be used in the same manner as a telephone. When the incoming call picked up by the attached telephone is a facsimile communication, or when the calling side performs a facsimile transmission after a call, it is necessary to switch the facsimile apparatus to execute the facsimile communication procedure.

Conventionally, as a method of switching an incoming call from an attached telephone to a facsimile device, a method of pressing a communication button of the facsimile device in a call state on the attached telephone, or as described in Japanese Patent Publication No. 3-65067. There is also known a method of pressing a specific numeric key of a telephone in a call state.

However, each of these methods requires a specific operation before the on-hook of the attached telephone, and those who do not know this receive the facsimile communication when the attached telephone is taken up. It will not be possible.

In Japanese Unexamined Patent Publication No. 64-81562, a time keeping means is used for a certain time, in a specific example, after off-hook,
There is described a facsimile device that can switch to facsimile reception when the attached telephone is hooked on within 10 seconds. However, if the switching timing is incorrect, there is a problem that facsimile communication cannot be performed.

If the time measuring means is removed and the attached telephone can be hooked on the hook to switch to facsimile reception at any time, the above-mentioned problem of switching timing can be solved. However, even if the incoming call is not a facsimile call, if the attached telephone is on-hook at the end of the call, there is a problem that the procedure shifts to a facsimile procedure. Further, when the procedure shifts to the facsimile procedure, the receiving side sends out CED and DIS.
CCITT T. According to the 30 standard, it is necessary to transmit CED and DIS for a maximum of 30 to 40 seconds. Therefore, there is also a problem in that a facsimile procedure is always performed by on-hook.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a facsimile apparatus capable of switching to facsimile reception by a simple operation from an attached telephone. It is what

[0008]

According to the present invention, in a facsimile apparatus equipped with an attached telephone, an off-hook detecting means for detecting off-hook / on-hook of the attached telephone, and the off-hook detecting means detects the off-hook of the attached telephone. After that, when the on-hook of the attached telephone is detected, a communication procedure is started, and a control means for limiting the number of times of sending the procedure signal at the time of starting to a small number of 1 to 2 is provided. Is.

[0009]

According to the present invention, the facsimile procedure can be easily carried out by starting the communication procedure when the off-hook of the attached telephone is detected and then the on-hook of the attached telephone is detected. Further, by limiting the number of times the procedure signal is transmitted at the time of starting the facsimile procedure to a small number such as 1 to 2 times, the line can be opened in a short time even when the incoming call is not facsimile communication.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of essential parts of an embodiment in which the present invention is applied to a facsimile machine. In the figure, 1 is a line, 2 is a slave telephone connection terminal, 3 is an accessory telephone connection terminal,
Reference numerals 4 and 5 are off-hook detection circuits, 6 is a CML relay, 7 is a switching relay, 8 and 9 are transformers, 10 is a modem, 11 is a dial circuit, 12 is an incoming call detection section, 13 is a ringing voltage generation section, and 14 is a display section. , 15 is an operation unit, 16 is a ROM, 17
Is a RAM, 18 is a timer unit, 19 is a document reading unit, 20 is a recording unit, 21 is a speaker, and 22 is a main control unit (CPU).
Is.

The modem 10 of the facsimile machine is connected to the line 1 via the transformer 8 and the CML relay 6. The slave telephone and the accessory telephone are connected to the slave telephone connection terminal 2 and the accessory telephone connection terminal 3. With CML relay 6,
The connection of the line 1 to the incoming call detection unit 12 and the modem 10 is switched, and the switching relay 7 switches the slave telephone and the attached telephone to the line 1 or the ringing voltage generation unit 13. The ringing voltage generator 13 is configured as a DC voltage source, and supplies DC voltage to the auxiliary telephone and the slave telephone when they are disconnected from the telephone line, and the off-hook detection circuits 4 and 5 detect off-hook / on-hook. I am able to do it. CML relay 6 and switching relay 7 are CP
It is controlled by U22.

The dial circuit 11 sends a dial pulse corresponding to the telephone number of the other party at the time of calling. The incoming call detection circuit 12 is composed of a photo coupler and has an LED
Is connected to the line 1 side, and the ON / OFF state of the phototransistor is monitored by the CPU 22 at a predetermined sampling period, whereby the ringing signal (16 Hz) of the exchange arriving on the line 1 can be detected. . The off-hook detection circuits 4 and 5 detect the off-hook states of the attached telephone and the slave telephone, respectively, and the detection results are monitored by the CPU 22. The transformer 9 transfers the tone signal from the line 1 from the transformer 9 to the modem 10 when the CML relay 6 is switched to the incoming call detection unit 12 side.

The display unit 14 displays the state of the facsimile apparatus and the data input from the operation unit 15. The document reading unit 19 reads a transmission document or a copy document, and the recording unit 20 prints out a reception document or copy data. The speaker 21 outputs a pseudo bell sound and a warning sound. The main control unit (CPU) 22 controls the entire facsimile apparatus based on the control program and fixed data stored in the ROM 16.

FIG. 2 is a flow chart for explaining an embodiment of the incoming call operation of the facsimile apparatus of FIG.
The auxiliary telephone priority mode is selected and the flow starts. In this mode, when a slave telephone is connected in addition to the auxiliary telephone, the operation by the slave telephone can be considered to be the same as the operation of the auxiliary telephone. Therefore, in the following description, the term auxiliary telephone also refers to the slave telephone. It is included.

In the standby state, the bell sound is detected. When there is no incoming call, repeat S1 loop,
Wait for the bell. When an incoming call is received, a bell sound signal is detected by the incoming call detection unit 12 and is transmitted to the CPU 22, the incoming call state is stored in the RAM 17, and the off-hook of the attached telephone is monitored in S2. Until the attached telephone is picked up, the loop from S2 to S1 is repeated, and during that time, a bell sounds. When the operator off-hooks the attached telephone, the off-hook is detected, the loop is exited, and the process proceeds to S3. The off-hook detection circuit 4 or 5 detects the off-hook of the attached telephone by the CPU 22, but the description thereof is omitted.

When the attached telephone is off-hook, the call becomes possible in S3, and if the incoming call is a call, the call is made and the loop from S4 to S3 is repeated. If the call ends or if the incoming call is a facsimile, the attached telephone is hooked on, and the hook is detected by the off-hook detection circuit 4 or 5.

When the off-hook of the attached telephone is detected,
In step S5, the CPU 22 is instructed to switch the CML relay 6, switch the line 1 to the facsimile side, and close the line with the transformer 8. Since the time from the on-hook of the attached telephone 2 to the switching of the CML relay 6 is short, the exchange on the office side does not drop during this time. Then, in S6, the facsimile procedure is started.

When the facsimile procedure is started,
The receiving side sends out CED and DIS. CCITT T.
According to the 30 standard, it is necessary to send DIS for a maximum of 30 to 40 seconds after sending CED. In the present invention, DIS is sent once or twice after CED is sent. That is, when the attached telephone is off-hook, it is when the incoming call is found to be facsimile communication.
Even if the number of times of DIS transmission is small, the facsimile procedure can be started without any problem. Also, when the call ends and the branch telephone goes off-hook when the call is received only by the call, not by the facsimile communication, the facsimile procedure is started.
Since the number of IS transmissions is small, the line can be opened promptly.

After sending the DIS, the DCS from the sending side is sent in S7.
Is detected, the reception processing of the facsimile device is performed in S8, and at the end of the procedure, the line is released and the process returns to the start in S9. If there is no facsimile communication, after sending DIS, D
Since no CS is detected, the process immediately goes to S9, the line is released, and the process returns to the start.

In the above description of the embodiment, the attached telephone priority mode has been described. However, the operation in the attached telephone priority mode may store an incoming call, and use that as a flag to select the operation. Alternatively, the program in the attached telephone priority mode may be started. Of course, in addition to the attached telephone priority mode, an automatic reception mode or a manual reception mode which has been conventionally used may be provided side by side so that it can be selected. In the automatic reception mode and the manual reception mode, it is not necessary to shorten the procedure signal transmission such as DIS transmission.

Further, in the facsimile apparatus which simplifies the operation, only the above-mentioned attached telephone priority mode may be programmed to handle the incoming call.

[0022]

As is apparent from the above description, according to the present invention, it is possible to shift to the facsimile reception only by the hook operation of the attached telephone, so that the erroneous operation can be prevented. Further, in this case, by shortening the time of the procedure signal, there is an effect that the acquisition time of the line can be shortened.

[Brief description of drawings]

FIG. 1 is a block diagram of a main part of an embodiment in which the present invention is applied to a facsimile device.

2 is a flow chart of an embodiment of the operation of the facsimile apparatus of FIG.

[Explanation of symbols]

 1 line 2 slave telephone connection terminal 3 auxiliary telephone connection terminal 4,5 off-hook detection circuit 6 CML relay 10 modem 12 incoming call detection section 22 main control section (CPU)

Claims (1)

[Claims] 1. In a facsimile apparatus equipped with an attached telephone, an off-hook detection means for detecting off-hook / on-hook of the attached telephone, and an off-hook detection of the attached telephone after the off-hook detection means detects the on-hook of the attached telephone. The communication procedure is started at the time of
A facsimile machine having control means for limiting the number of times to a small number, such as two times.