JPH0797793B2 - Facsimile device supporting multiple inputs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a facsimile machine having a built-in answering machine.

[Conventional technology]

Facsimile machines have made rapid progress in recent years, but recently there have been built-in automatic reception devices, or one that can use one telephone line for both facsimile and telephone. However, each of them has advantages and disadvantages in terms of practical use, and it has been the situation until now that the user is confused about the choice.

[Problems to be solved by the invention]

Problems when selecting both fax and telephone by common telephone line, both for issuing a reply-only message and for recording the other party's message when used in connection with an automatic response device Separately existing problems In order to save time while these are operating, FA
There are a lot of problems to solve the problems when you want to operate X immediately, and the problems that can deal with CNG signals.

[Means for solving problems]

The present invention detects a call signal of a telephone, automatically closes a telephone line, transmits a response message, and then records a message from a caller, and cannot record a message from a caller due to an accident or the like. In the case, an off-hook telephone device for sending only a message dedicated to response is provided, and an off-hook detecting means for detecting off-hook of the handset of the telephone,
A means for restoring the answering machine when the detection signal is output from the off-hook detecting means during operation of the answering machine, and a predetermined line which is transmitted from the calling side or the called side after the telephone line is closed. Means for detecting a specific signal, CNG signal receiving means for detecting a CNG signal sent from the facsimile machine on the caller side after the telephone line is closed, and outputting a start signal for activating the facsimile machine, and detecting the specific signal When a specific signal is detected by the means, and after recording a message from the caller or after ending the message dedicated to the response, a means for outputting a start signal for activating the facsimile device is provided, and when a call is received, first The answering machine answers the call, and when the operation of the answering machine ends, the facsimile machine is activated to enable facsimile communication. CN coming into the turn telephone equipment operating
It is possible to switch to facsimile communication by G signal or by a predetermined specific signal.

〔Example〕

 The structure and operation of the embodiment of the present invention will be described below.

The figure shows the overall configuration of the fax machine according to the present embodiment, in which L1 and L2 are telephone line terminals, TEL is a telephone section, and 1 is a ringing circuit for detecting a ringing signal. It has a caller's on-hook detection means and a telephone TEL's off-hook detection means. Further, the off-hook detecting means is disabled during the operation (busy state) of the FAX processing unit described later. 2 is a one-chip CPU
Although not shown in the figure, it has a built-in ROM in which a program is stored. In this CPU2, I-1 to I-
Reference numeral 4 is an input port, and O-1 to O-5 are output ports.
A keyboard (not shown) for operating the CPU 2 is connected to the CPU 2.

3 is a solid-state memory capable of recording and reproducing a response message (OGM) and 4 message messages (ICM-1 to ICM-4), 4 and 5 are analog switches, 6, 7, 8 and 14 are amplification circuits, 9 Is a tone decoder for decoding the PB tone (DTMF) sent by the caller to start the fax, as will be described later, and 10 is a fax processing unit, which is set to the receiving mode by the keyboard (not shown). When set, if an image signal comes in after the H-level signal (start signal) is applied to the START terminal, the image is recorded on the recording paper (not shown). During this recording operation, the BUSY terminal is at the H level, and its output is added to the above ringing circuit (described later). 11 is a CNG signal receiver, 1
Reference numeral 2 is a bidirectional amplifier circuit, and 13 is a hybrid circuit, which prevents a response message applied to the input terminal IN from flowing around to the output terminal OUT, and outputs the voice of the caller input through the line transformer LT. Is configured. 15 is a speaker.

This device is composed of the above-mentioned parts, and its specific operation will be described below.

As shown in the figure, the solid-state memory 3 is divided into five parts, and a response message OGM is pre-recorded in a part thereof. Further, the apparatus is set to the reception mode by the keyboard (not shown).

When a ringing signal is input to the telephone lines L1 and L2 in the standby state described above, this ringing signal is detected by the ringing circuit 1 and the relay Y-1 is held in the ON state via the input port I-1 of the CPU2. . This is the contact y1-1 of relay Y-1,
The telephone lines L1 and L2 are closed via the line transformer LT. At this point, the ringing signal stops and the phone is in a call state.

Then, the output port O-3 of the CPU 2 becomes H level by the program, and the analog switch 4 is turned on. Further, the reproduction of the response message OGM is started by the code transmitted through the output port O-2, and is transmitted to the caller through the amplifier circuit 6, the hybrid circuit 13 and the line transformer LT.

When the caller has no message in the fax and there is room for recording the message (ICM) in the solid-state memory 3, the end of the response message OGM is detected via the input port I-3 of the CPU2. Then, the analog switch 4 is turned off, and the analog switch 5 is connected via the output port O-4.
Turn on. Furthermore, the memory range for the first message message ICM-1 is indicated via the output port O-2. Therefore, the caller's message is line trans L
It is recorded at the position of ICM-1 on the solid-state memory 3 through T, the hybrid circuit 13, the amplifier circuit 7, and the analog switch 5.

Even if the caller does not have a message in the fax as described above, the recording end of the message described above is terminated by the input port I-2 of the CPU2.
When it is detected through the output port O-5, an H-level signal is output from the output port O-5, which is applied to the START terminal of the FAX processing unit 10 to start the FAX processing unit 10.

When the FAX processing unit 10 is started, a known identification signal (for example, a CED signal) is sent to the caller through the SIGNAL terminal and the amplifier circuit 12. However, as mentioned above, the caller has no need to fax, so when the above signal is heard, the telephone is put on-hook.

The on-hook is detected through the ringing circuit 1 and the input port I-1 of the CPU2, and turns off the relay Y-1 that was on, and restores the apparatus to the standby state.

The above operation is repeated, and the solid state memory 3 is issued with a message.
When the message becomes full, the message cannot be recorded any more, and when the call arrives, it becomes a response only. At this time, the reply message can be switched to a reply-only message. In any case, when there is an incoming call and the sending of the response message OGM ends, this end is detected via the input port I-3, and the FAX processing unit 10 is started via the output port O-5 as described above. , The fax identification signal will be sent to the caller.

If the caller has no business to fax, the caller's telephone set will be on-hook as a matter of course because it will be understood that the message cannot be recorded when the above identification signal is heard. Due to this on-hook, the apparatus returns to the standby state as described above.

Next, the respective embodiments in the case where the caller has a requirement for FAX will be sequentially described below.

(I) [Standard fax on the caller side] In this case, after the caller calls this device as described above and listens to a response message or records a message, Caller side after hearing the identification signal
If you press the communication button of FAX (not shown), the FAX on the calling side will be displayed.
A predetermined tone is sent and received, and if the training results match, the mutual faxes are in communication and the original can be sent and received. Since this part is known, it is not shown.

(Ii) [The FAX on the calling side has a means for sending a CNG signal] In this case, the FAX on the calling side calls this device, and as described above, the CNG signal ( 1100Hz) comes in. This CNG signal is detected by the CNG signal receiving unit 11 via the line transformer LT and the amplifying circuit 12, and the FAX processing unit 10 detects the same as the start signal described above.
Is started, and the above-mentioned identification signal is transmitted from the FAX processing unit 10 to establish a mutual FAX communication state.

(Iii) [Reciprocal F
What the AX enters into a communication state] The specific signal in this case is a signal that can be changed by the user of the FAX. Occurs at this time when the caller calls the device and sends the response message as described above, or presses the # button on the caller's telephone (PB tone type) after recording the message. Do #
The tone is decoded by the tone decoder 9 via the line transformer LT and the amplifier circuit 8, and when it matches the one programmed in advance, the FAX processing unit 10 is started via the output port O-5 as described above, and the mutual operation is started. The FAX can be put in the communication state.

(Iv) [After the calling side and the called side have contacted each other by FA
What switches to the X communication state] When a caller receives an incoming call as described above, this device sends a response message OGM and then records the caller's message. While sending this response message or recording the message, the caller's voice is
It can be monitored through the hybrid circuit 13, the amplifier circuit 7, the amplifier circuit 14, and the speaker 15. Therefore, if the calling party wants to talk to the called party, the telephone TEL is taken off-hook. This off-hook is detected by the ringing circuit 1 and turns off the relay Y-1 via the input port I-1. Therefore, the contact point y1-1 opens, and the operation of the answering machine is canceled. At the same time above phone
TEL off-hook detection output is CPU2 input port I-5
The relay Y-2 is turned on via the contact Y2-1 and the resistor R1 and the capacitor C1 are connected via the contact y2-1 as illustrated.

After the above-mentioned call, if the caller wants to communicate by FAX, send # tone from the caller side as described above,
This signal is resistor R1, capacitor C1, line transformer LT
The detected fax starts as described above via. Relay Y-1 is turned on at the same time when FAX operates, and contact y1-1
Keeps the telephone line closed, and the fax processing unit 10 BUSY
The signal from the terminal releases the above-mentioned closed state of the telephone line by the telephone TEL.

〔The invention's effect〕

According to the present invention, the facsimile machine can be activated automatically after the caller's message has been recorded or the response-only message has been sent, or by the CNG signal or the specific signal. Also, the facsimile communication can be applied to any type of facsimile apparatus, and the practical effect is great.

[Brief description of drawings]

 The figure is a circuit diagram showing the principle of the present invention.

Claims (1)

[Claims] 1. A telephone call signal is detected, a telephone line is automatically closed, a response message is transmitted, a message from a caller is recorded, and a message from the caller is recorded due to an accident or the like. If it is not possible, if the answering machine outputs only a response-only message, the off-hook detecting means for detecting the off-hook of the handset of the telephone, and the off-hook detecting means outputs a detection signal while the answering machine is operating. A means for restoring the above answering machine, a means for detecting a predetermined specific signal transmitted from the calling side or the called side after the telephone line is closed, and a means for the calling side after the telephone line is closed. Specified by the CNG signal receiving means that detects the CNG signal sent from the facsimile machine and the activation signal that activates the facsimile machine, and the means that detects the specific signal When a message is detected, and after the message from the caller has been recorded or the message dedicated to the response has been completed, means for outputting a start signal for starting the facsimile machine, and a facsimile machine supporting multiple inputs .