JPH0478066B2 - - Google Patents

Description

[Detailed description of the invention]

Technical field to which the invention pertains The present invention relates to a non-standard communication mode communication system,
In particular, the present invention relates to a communication mode discrimination method for facsimile devices. Description of Prior Art Conventionally, facsimile equipment, especially CCITT
In addition to the standard communication mode recommended by CCITT, the G3 aircraft is equipped with a manufacturer's own non-standard communication mode.The method for implementing this is to use standard digital identification as an initial identification signal from an automatic call receiving or manual receiving device. In addition to the signal (DIS), a non-standard function signal (NSF) is transmitted, and when the automatic calling or manual transmitting device receives the NSF and identifies that the other party has a non-standard communication mode, , had adopted a method of proceeding with a non-standard communication mode. However, as the number of manufacturer-specific non-standard functions increases, in order to identify them, it is necessary to lengthen the NSF and add new non-standard functions to it.
It is necessary to add new NSFs and display new non-standard functions within them, resulting in the problem that it takes time to identify the communication mode. The conventional technology will be explained below with reference to the drawings. FIG. 1 shows a communication procedure up to determining the communication mode in a conventional facsimile device. FIG. 3 is a functional block diagram related to communication mode determination of a conventional facsimile device. The automatic calling or manual transmitting device T is connected to the line after the line connection timing TCML, the control unit 1 sets the logical switches S1 and S2 to side a, and the tonal signal transmitting unit 2 transmits the call recommended by CCITT. A call station identification signal CNG is always or optionally transmitted.
In the automatic call receiving or manual receiving device R, after a delay of 1.8 to 2.5 seconds after the line connection timing RCML, the control unit 1 sets the logical switches S1 and S2 to the a side and sends out a tonal signal. The called station identification signal CED is sent from the section 2 for 2.6 to 4.0 seconds, and then the control section 1 sets the logical switches S1 and S2 to the b and a sides, respectively, and the binary signal sending section 3
As the initial identification signal from the non-standard function signal NSF
1, 2 and a standard digital identification signal DIS. After sending out the calling station identification signal CNG, the automatic calling or manual transmitting device T has the control unit 1 switch the logical switch S2 to the b side, and the binary signal receiving unit 4 receives this and sends the non-standard function signal NSF1. and/or 2, the control unit 1 switches the logical switches S1 and S2 to b and a, respectively, and outputs the non-standard function from the binary signal sending unit 3. The receiving command signal NSS is sent out, and the non-standard procedure is proceeded from then on. When the automatic calling or manual transmitting device T receives only the digital identification signal DIS as an initial identification signal, it sends out a standard reception command signal DCS and thereafter proceeds with standard procedures. The calling station identification signal CNG and the called station identification signal CED described above do not have a direct effect on determining the communication mode of the facsimile, and the initial identification signal sent by the automatic call receiving or manual receiving device R determines the communication mode. Contributes to decisions. Table 1 relates the communication procedure shown in FIG. 1 to the operations of the logical switches S1 and S2 in the facsimile machines T and R shown in FIG. In Table 1, the x mark indicates that either a or b may be used.

[Table] OBJECT OF THE INVENTION The present invention has been made to eliminate the above-mentioned problems inherent in the conventional technology, and therefore, an object of the present invention is to ensure that even if a non-standard communication mode is added, the communication mode remains the same as the standard communication mode. The object of the present invention is to provide a new communication method that does not require time to identify non-standard communication modes. Structure of the Invention The above object of the present invention is to provide a non-standard calling center identification signal (NCNG) to an automatic call receiving or manual receiving device when a facsimile device makes an automatic call or manually sends a call.
, and if an initial identification signal containing a non-standard function signal (NSF) is received, a non-standard reception command signal is sent, the non-standard procedure is proceeded, and the non-standard function signal (NSF) is not included. When an initial identification signal is received, the facsimile device is configured to send a standard reception command signal and proceed with a standard procedure, and when the facsimile device automatically receives a call or receives a manual call, it sends an initial identification signal. If the NCNG is received from an automatic calling or manual transmission device, an initial identification signal that does not include a digital identification signal (DIS) is sent; if the NCNG is not received, a digital identification signal (DIS) is sent. ), and is configured to transmit an initial identification signal containing an automatic call or manual transmission device, and proceed with subsequent standard or non-standard procedures depending on whether the received command signal from the automatic calling or manual transmitting device is standard or non-standard. Achieved by communication mode communication method. DESCRIPTION OF EMBODIMENTS OF THE INVENTION Hereinafter, the present invention will be specifically described with reference to a preferred embodiment thereof with reference to the drawings. FIG. 2 shows the communication procedure between the facsimile devices according to the present invention until a non-standard mode is determined as the communication mode, and FIG. 4 shows the functions related to determining the communication mode of the facsimile device according to the present invention. It is a block diagram. In the automatic call or manual transmission device T, the control unit 1 sets all logical switches S1, S2, and S3 to a.
The tonal signal transmitter 2 sends out a manufacturer's own non-standard calling station identification signal NCNG instead of CNG as the calling station identification signal. Automatic call receiving or manual receiving device R is line connection timing
After RCML, the control unit 1 controls the logical switches S1 and S2 in the same way as before, and outputs the called station identification signal CED.
At the same time, the logical switch S3 is set to the b side, and the tonal signal receiving section 5 receives the calling station identification signal NCNG. Since the automatic call receiving or manual receiving device R has received the calling station identification signal NCNG before the sending of the called station identification signal CED is completed, the control unit 1 switches the logical switch S1,
S2 and S3 are switched to the b, a, and a sides, respectively, and the binary signal sending section 3 sends out the non-standard function signal NSF as an initial identification signal. After sending the calling station identification signal NCNG, the automatic calling or manual transmitting device T has the control unit 1 switch the logical switch S2 to the b side, and the binary signal receiving unit 4 receives this, and the received non-standard function It is identified from the signal NSF that the automatic incoming call or manual receiving device R has a non-standard function, and the logical switches S1 and S2 are switched to sides b and a, respectively, and a non-standard reception command signal is sent from the binary signal sending unit 3.
After sending the NSS, non-standard procedures proceed.
Automatic call receiving or manual receiving device R receives calling station identification signal
If NCNG is not detected, the non-standard function signal NSF1, as shown in Figure 1, is used as the initial identification signal.
Of course, the communication procedure similar to the conventional one is carried out with the automatic calling or manual transmitting device T by transmitting the digital identification signal DIS or only the digital identification signal DIS. Table 2 relates the communication procedure shown in FIG. 2 to the operations of logical switches S1, S2, and S3 in facsimile machines T and R shown in FIG. In Table 2, the x mark indicates that either a or b may be used.

[Table] In this embodiment, the automatic call receiving or manual receiving device R is
The non-standard function signal NSF was sent after waiting until the conventional timing to send the initial identification signal, but the calling station identification signal from the automatic calling or manual transmitting device T
It is clear that the communication mode can be determined even more quickly if the non-standard function signal NSF is sent immediately after receiving the NCNG. Effects of the Invention As explained above, the present invention determines a non-standard communication mode more quickly than before by configuring an automatic calling or manual transmission device to notify the presence of a non-standard function using an identification signal. The effect is that it can be done.

[Brief explanation of drawings]

FIG. 1 is a diagram illustrating a communication procedure for determining a non-standard communication mode in the prior art, and FIG. 2 is a diagram illustrating a communication procedure for determining a non-standard communication mode in an embodiment of the present invention. T...Automatic calling or manual transmission device, R...Automatic call receiving or manual receiving device, TCML...T line connection timing, RCML...R line connection timing, CNG...standard calling station identification signal ,NCNG
...Calling station identification signal of the present invention, CED...Called station identification signal, NSF, NSF1, 2...Non-standard function signal, DIS...Digital identification signal, NSS...Non-standard reception command signal, Third FIG. 4 is a functional block diagram related to communication mode determination of a conventional facsimile device, and FIG. 4 is a functional block diagram related to communication mode determination of a facsimile device in an embodiment of the present invention. 1...Control unit, 2...Tonal signal sending unit, 3
...Binary signal sending section, 4... Binary signal receiving section, 5... Tonal signal receiving section, S1, S2,
S3...Logical switch.

Claims (1)

[Claims] 1. In mutual communication between formal communication devices that can support either standard communication mode or non-standard communication mode, if the formal communication device makes an automatic call or manual transmission, it sends a non-standard calling station identification signal to the other party's terminal. If a non-standard function signal is received as an initial identification signal during this sending gap, a non-standard reception command signal is sent out, and thereafter, the non-standard procedure is advanced, and the initial identification signal without a non-standard function signal is When the identification signal is received, a standard reception command signal is sent, and the standard procedure is then proceeded, and when the above-mentioned remote reception device automatically receives a call or receives a manual call, a predetermined reception command signal is sent out based on the line connection timing connected to the line. If the non-standard calling station identification signal is detected within the specified time, an initial identification signal that does not include a digital identification signal is sent, and if the non-standard calling station identification signal is not detected, a digital identification signal is sent. An initial identification signal containing a signal or an initial identification signal containing only a digital identification signal is transmitted, and if a non-standard reception command signal is received during the transmission interval of the initial identification signal, the non-standard procedure is advanced and the standard reception is performed. A non-standard communication mode communication method characterized by proceeding with standard procedures when a command signal is received.