JPS5925506B2 - Facsimile reception method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reception method in facsimile communication using a telephone line.

When receiving facsimile communications using conventional telephone lines, it is impossible to distinguish between incoming phone calls and incoming calls from Faxmi 9, so the telephone bell rings, a manual voice response is performed, and the switch is then switched to facsimile reception. .

In addition, when FAX 9 is set to automatic reception mode, it will automatically respond, and facsimile reception will be performed with a beat.
In this case, an incoming telephone call is not distinguished and the facsimile 9 reception operation is started, making it impossible to respond manually. As a result, the Faxmi 9 automatic reception has had to be used only when no one is available. As described above, telephone calls are answered manually, but there is a drawback that the user's wish to automatically receive facsimile 9 calls cannot be fulfilled. Another disadvantage was that the bell rang even in automatic reception mode, which was a nuisance to users. In order to eliminate the above-mentioned drawbacks, the present invention has a configuration in which one subscriber line can be used for two types, one for telephone and one for facsimile 9, and the incoming telephone and facsimile 9 calls are made independent, and the facsimile automatically responds. Furthermore, by installing a switching device, it is possible to receive incoming fax calls on the telephone terminal, allowing subscribers to receive fax calls even when
The system uses a facsimile 9 reception system that allows calls to be answered automatically or manually, and will be described in detail with reference to the drawings below.

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

1 is a telephone terminal; 2 is a facsimile device; 5 is a switching device that allows even the telephone to know when a facsimile call is received;
3 is a home line between the telephone terminal and switching device B; 4 is a home line between the facsimile device and switching device B; 7 is an exchange that accommodates subscribers; and 6 is a subscriber connected to the subscriber terminal from the exchange. It is a line.

FIG. 2 is a diagram specifically showing the switching device and the call signal sending part on the switching side. 8 is a telephone terminal, 9 is a facsimile device, 10 is a home line between the switching D switching device and the telephone terminal, 11 is a home line between the switching D switching device and the facsimile device, and 12 is a terminal for receiving both telephone calls and facsimile calls. A switching device B for selecting between ringing the telephone bell and ringing only a telephone call; 13 is a switching circuit; 14 is an interface circuit for notifying the telephone of an incoming facsimile call; 15 and 16 are switching devices 17 is a polarity inversion device for inverting the polarity of the subscriber line; 18 is a polarity inversion circuit; 19 and 20 are subscriber lines between the polarity inversion device and the exchange; 21 is an exchange that accommodates subscribers.

The switch D switching circuit 13 includes a switch consisting of a movable contact piece 22 connected to the subscriber line 15, a fixed terminal 23 connected to the interface circuit 14, and a fixed terminal 24 connected to the facsimile device 9. The switch consists of a movable contact piece 25 connected to the communication line 16, a fixed terminal 26 connected to the interface circuit 14, and a fixed terminal 27 connected to the facsimile device 9. The polarity inversion circuit 18 also includes a switch including a movable contact piece 28 connected to the subscriber line 19, a fixed terminal 29 connected to the subscriber line 15, and a fixed terminal 30 connected to the subscriber line 16; A movable contact piece 31 connected to the subscriber line 20, a fixed terminal 32 connected to the subscriber line 15, and the subscriber line 16.
The switch is composed of a fixed terminal 33 connected to the switch. That is, when receiving a call to a subscriber who has a telephone terminal 8 and a facsimile device 9, for example, in the case of a telephone call, the movable contact piece 28 of the polarity reversing circuit 18 and the fixed terminal 29 are connected, and the automatic contact piece 31 is connected. A fixed terminal 33 is connected to send a polarized signal for a calling signal to 15 telephone subscriber lines, and the bell of one telephone is rung. In the case of a facsimile call, the movable contact piece 28 of the polarity reversing circuit 18 and the fixed terminal 30 are connected, and the movable contact piece 31 and the fixed terminal 32 are connected to change the polarity for the calling signal to the 16 subscriber lines for facsimile. Sends a certain signal to notify that a facsimile call has arrived. Next, when receiving a facsimile call using an automatic facsimile answering device, the switching device 12
When the switching circuit 13 is switched to the facsimile side by connecting the movable contact piece 22 and the fixed terminal 24, and the movable contact piece 25 and the fixed terminal 27, the facsimile device 9 receives a call exclusively for facsimile, Automatically responds and automatically receives image information.

At that time, the telephone terminal 8 receives only telephone calls. When the switching circuit 13 of the switching device 12 is connected to the movable contact piece 22 and the fixed terminal 23, and the movable contact piece 25 and the fixed terminal 26 are connected to the telephone side, the telephone terminal 8 receives a facsimile call. A bell rings for all incoming telephone calls, and facsimile calls can be answered manually. In this case, the incoming facsimile call is sent to the telephone terminal 8 via the interface circuit 14.
ring the bell. The switching operation of the switching device 12 and the polarity reversing device 17 has been described above.

In this way, the polarity reversing device 1r installed on the exchange side changes the polarity of the subscriber line 1 in the case of a facsimile call and in the case of a telephone call.
The polarity of 5 and 16 is switched, but in this case,
The distinction between a facsimile call and a telephone call is made under the control of the wide exchange 21 based on incoming call information sent from the originating station to the station where the polarity reversing device 17 is installed. In addition, the switching device 12 installed on the subscriber side switches between ringing the bell only when a telephone call arrives, or ringing the bell whether it is a telephone call or a facsimile call.
The operation of the switching circuit 13 in this case is performed by the subscriber.

As explained above, when a telephone call and a facsimile call are made, the polarity of the subscriber's line is reversed on the exchange side, and the subscriber operates the switching device on the subscriber side, so that the 11 facsimile call can be received without ringing the bell. , ring the bell only for telephone calls, ring the bell for both telephone calls and facsimile calls, and ring the bell for facsimile calls as well.
The facsimile call is received by knowing the incoming call. This has the advantage that two reception modes are possible.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram specifically showing a switching device B and a call signal sending part on the exchange side. 1...Telephone terminal, 2...Facsimile device, 3,
4... Domestic line, 6... Subscriber line, 5... Switching device, 7... Exchange, 8... Telephone terminal, 9...
Facsimile machine, 10, 11...Internal line, 15, 1
6, 19, 20... subscriber line, 12... switching b switching device, 13... switching b switching circuit, 14... interface circuit, 17... polarity reversing device, 18... Polarity reversal circuit, 21...exchanger.

Claims (1)

[Claims] 1. In a facsimile communication reception system using a telephone line, a means for distinguishing between a telephone ringing signal and a facsimile ringing signal by reversing the polarity of the two subscriber lines, and A switching device is installed to ring the telephone bell for both telephone and facsimile calls when a subscriber receives an incoming call;
This facsimile receiving system is characterized by comprising a means for switching between two modes: one for ringing a telephone bell only for telephone calls, and one for entering automatic reception operation without ringing the telephone bell for facsimile calls.