JPH089087A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To reduce th communication time and to attain the convenience of use by selecting the transmission of a CRP signal or the waiting of re- transmission of a DCS group or the like when a designated option signal cannot be received. CONSTITUTION:A control circuit 36 controls it to be informed to an opposite equipment in terms of a digital command signal (DCS signal) as to whether a reception command signal includes a sub address signal or a password signal. Then the information of a signal line 50a is received to read information of the selection circuit 50 and when the digital instruction signal representing the presence of an option signal but the designated option signal cannot be received, which of re-transmission of the initial identification signal, or the transmission of the CRP signal or the awaiting of the re-transmission of the reception instruction signal is selected is discriminated and the control is implemented based on the selected operation. Thus, a delay in a communication procedure or disable communication is avoided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile machine capable of transmitting multiframes.

[0002]

2. Description of the Related Art In a conventional facsimile communication, for example, a DIS signal, a DCS signal, and a DTC signal are each composed of a multi-frame to provide a frame for an option signal, in which a sub-address signal, a password signal, or a selective signal is provided. It is performed that an optional signal such as a polling signal is included and transmitted.

[0003]

However, in the conventional facsimile communication, for example, DIS signal, DC
Even if the S signal and the DTC signal are transmitted in multi-frames, the fact cannot be notified by including them in the FIF (facsimile information field) of the DIS signal, the DCS signal, and the DTC signal.

Therefore, for example, when the transmitter transmits a DCS signal containing a sub-address signal (hereinafter referred to as a SUB signal), the receiver of the other party determines that it is performing the operation designated by the SUB signal. On the other hand, if the receiver cannot receive the SUB signal and can receive the DCS signal, the DCS
Since the signal does not include information as to whether or not the SUB signal is transmitted, only the DCS signal is correctly received, and the SU
It is judged that there is no B signal. Due to the above, there is a drawback that the transmitter and the receiver are misjudged and malfunctions occur.

In addition, for example, the transmitter uses an NSS signal and a DC signal.
When the S signal is transmitted and a certain mode is determined by these two signals, and the receiver can only receive the DCS signal, the mode determined by the transmitter and the receiver is confused and malfunctions. There was a drawback that it would end up.
For example, when the standard and fine modes are determined by the DCS signal and the super fine mode is determined by the NSS signal, in the above case, the linear densities determined by the transmitter and the receiver are different, and the image spreads. Problems such as being recorded will occur.

On the other hand, the applicant of the present application is March 2, 1994.
Patent application filed on the 4th (Japanese Patent Application No. 6-078,025)
No.) and a patent application filed on May 12, 1994 (Japanese Patent Application No. 6-123,127), the receiver side or polling is performed by including the presence or absence of an option signal in the reception command signal or the transmission command signal. We proposed a facsimile machine that retransmits the initial identification signal when the transmitter receives the option signal but cannot receive the specified option signal frame.

However, when the initial identification signal is retransmitted, the transmitter side receives PWD / SUB / NSS /
Send TSI / DCS signal, or polling receiver side again PWD / SEP / NSC / CIG / DTC
Since the signal is transmitted, the procedure time becomes long.

Further, according to the German standard, when the polling receiver transmits the DTC group signal and then the polling transmitter does not send the DCS group signal, the polling transmitter receives the DCN signal when it receives the DIS group signal. It had the drawback of sending and interrupting communication.
That is, the facsimile of Japan is the polling sender,
When a facsimile in Germany is the polling receiver, there is a drawback that communication is disabled.

According to the present invention, when the presence or absence of the option signal is designated by the reception command signal or the transmission command signal and communication is performed, the receiver side or the polling transmitter side receives the notification indicating that the option signal is present. Another object of the present invention is to provide a facsimile apparatus that can avoid delay in communication procedure and communication failure when a frame of an optional signal cannot be received.

[0010]

The first invention of the present application is
In a facsimile machine having a function of notifying a partner machine by a digital command signal (DCS signal) of whether the received command signal includes an option signal, the receiver side receives the digital command signal with the option signal. , If the specified option signal cannot be received,
It has means for retransmitting the initial identification signal, transmitting the CRP signal, or waiting for the retransmission of the reception command signal to select one of them. As a result, the receiver can select the control when it receives the digital command signal with the option signal but cannot receive the specified option signal, and transmits the CRP signal or waits for the retransmission of the DCS group. As a result, the communication time can be shortened.

The second invention of the present application notifies the partner machine of whether or not the reception command signal of the first invention includes a sub-address signal or a password signal by a digital command signal. Further, according to the third invention of the present application, whether or not the reception command signal of the first invention includes a non-standard function setting signal or a transmission terminal identification signal is notified to the partner device by a digital command signal.

The fourth invention of the present application is a facsimile machine having a function of notifying a partner machine of whether or not an option signal is included in a transmission command signal by a digital transmission command signal. , Received a digital transmission command signal with optional signal,
When the designated option signal cannot be received, it has means for retransmitting the initial identification signal, transmitting the CRP signal, or waiting for the retransmission of the transmission command signal. As a result, the polling transmitter can select the control when the digital command signal with the option signal is received, but the specified option signal cannot be received, and the DIS group signal is retransmitted for immediate communication. It will not be impossible, and CR
By waiting for the transmission of the P signal or the retransmission of the DTC group, the communication time can be shortened.

The fifth invention of the present application notifies the partner machine of whether or not the transmission command signal of the fourth invention includes the password signal or the selective polling signal by the digital transmission command signal. Further, according to a sixth aspect of the present application, whether or not the transmission command signal according to the fourth aspect of the invention includes a non-standard function command signal or a calling station identification signal is notified to the partner device by a digital transmission command signal. .

A seventh invention of the present application is the above invention, wherein the receiver side receives a digital command signal with an option signal, but cannot receive the designated option signal, or a polling transmitter. When the side receives the digital transmission command signal with the option signal but cannot receive the designated option signal, the operation for receiving the reception command signal or the transmission command signal is changed according to the number of receptions. Furthermore, an eighth invention of the present application is the above-mentioned seventh invention, wherein although the option signal is specified, if the option signal cannot be received, the reception command signal or the transmission command signal is received.
It is characterized in that the RCP signal is transmitted up to the second time, or the retransmission of the reception command signal or the transmission command signal is waited for, the third time the initial identification signal is retransmitted, and these three operations are repeated.

As a result, when the receiver receives the digital command signal with the option signal but cannot receive the designated option signal, the control is limited to the first two times, and the communication time can be shortened. When no response or RCP signal was transmitted for the third time, the transmitter made an error after three retransmissions, but this also disappeared. Also, when the polling transmitter receives the digital transmission command signal with the option signal but cannot receive the specified option signal, the control is limited to the first two times, and the communication time is shortened and the DIS group signal is retransmitted. , Communication will not be lost immediately, no response or RCP for the third time
When the signal was transmitted, the transmitter made an error after retransmitting three times, but this also disappeared.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of a facsimile apparatus including a main structure used in each embodiment of the present invention.

The NCU (network control unit) 2 is connected to the terminal of the line in order to use the telephone network for data communication and the like,
It controls the connection of the telephone switching network, switches to the data communication path, and holds the loop. If the signal level (signal line 36a) from the control circuit 36 is "0", the NCU 2 connects the telephone line 2a to the telephone 4 side, and if the signal level is "1", the telephone line 2a is connected. It is connected to the facsimile machine side.
In the normal state, the telephone line 2a is connected to the telephone 4 side.

The hybrid circuit 6 separates the transmission system signal and the reception system signal, sends the transmission signal from the addition circuit 16 to the telephone line 2a via the NCU 2, and receives the signal from the other side via the NCU 2. , V29 demodulator 20 and V21 demodulator 18 via signal line 6a.

The V21 modulator 8 is a modulator for performing the modulation based on the well-known ITU-T recommendation V21, modulates the procedure signal (signal line 36b) from the control circuit 36, and adds it through the signal line 8a. To be sent to.

The reading circuit 10 sequentially reads an image signal for one line in the main scanning direction from the transmission original, creates a signal string representing binary values of white and black, and sends this data from the signal line 10a to the encoding circuit 12. It is sent by an image pickup device such as a CCD (charge coupled device) and an optical system. Here, when the signal "0" is output to the signal line 36c, the standard mode reading is performed, and when the signal "1" is output, the fine mode reading is performed and the signal "2" is output. When output, it reads in super fine mode.

The encoding circuit 12 receives the read data output to the signal line 10a and encodes it (MR of K = 8).
(Encoding) and output from the signal line 12a.

Under the control of the signal line 36h, the memory circuit 38 stores the MR coded data of K = 8 output to the signal line 12a, and also outputs the stored information to the signal line 38a.

The decoding / scaling / encoding circuit 40 receives the MR coded data of K = 8 output to the signal line 38a, decodes it once as needed, scales it, and codes it again. The converted information is output to the signal line 40a.

The V27ter or V29 modulator 14 inputs the coded data from the signal line 40a, and the known ITU
Modulation based on -T recommendation V27ter (differential phase modulation) or V29 (quadrature modulation) is performed, and this modulation data is output to the addition circuit 16 through the signal line 14a.

The adder circuit 16 is a circuit for adding the outputs of the modulators 8 and 14. The output of the adder circuit 16 is sent to the hybrid circuit 6.

The V21 demodulator 18 performs demodulation based on the well-known ITU-T recommendation V21. The demodulator 18 receives the procedure signal from the hybrid circuit 6 through the signal line 6a, performs V21 demodulation, and sends the demodulated data to the control circuit 36 through the signal line 18a.

The V27ter or V29 demodulator 20 performs demodulation based on the well-known ITU-T recommendation V27ter or V29. The demodulator 20 receives the modulated image signal from the hybrid circuit 6, demodulates it, and sends the demodulated data to the decoding circuit 22 through the signal line 20a.

The decoding circuit 22 outputs the signal line 20 when the signal of the signal level "0" is output to the signal line 36d.
When the information output to a is input and the signal of the signal level "1" is output to the signal line 36d, the signal line 2
The information output to 6a is input, and the decoded (MH-decoded or MR-decoded) data is output to the encoding circuit 24 or the recording circuit 28 through the signal line 22a.

The encoding circuit 24 inputs the signal output to the signal line 22a, performs MR encoding of K = 8,
This encoded data is output to the memory circuit 26 via the signal line 24a.

Under the control of the signal line 36e, the memory circuit 26 stores the encoded data output to the signal line 24a, and outputs the stored data to the decoding circuit 22 via the signal line 26a.

The recording circuit 28 is in the standard mode when the signal "0" is output to the signal line 36f, and the signal "1" is output.
Is output in the fine mode, and when the signal "2" is output in the super fine mode, the data output to the signal line 22a is input, and recording is sequentially performed line by line.

The memory storage selection button 30 is a button used when the transmitter specifies that the receiver should store the memory. When the button 30 is pressed, a pressing pulse is generated on the signal line 30a.

The memory storage designation lamp 32 is a lamp that lights up when the transmitter side designates memory storage on the receiver side. The lamp 32 is extinguished when a clear pulse is generated on the signal line 36g, and thereafter, lighting-off-lighting is repeated every time a pressing pulse is generated on the signal line 30a. Then, when the light is off, the signal of the signal level "0" is output to the signal line 32a, and when the light is on, the signal of the signal level "1" is output to the signal line 32a.

The box number designating circuit 42 is a circuit for designating in which memory box the memory storage designation lamp 32 stores data when the receiver side designates storage in the memory. Is output to the signal line 42a. From the transmitter to the receiver, the receiver side specifies in which memory box the receiver stores.

The memory information output instruction button 34 is a button used when outputting the information stored in the memory circuit 26. When the button 34 is pressed, a pressing pulse is generated on the signal line 34a.

The designating circuit 44 is a circuit for designating the box number of the memory box to which the information stored in the memory is to be output when the memory information output instruction button 34 is selected to output the information stored in the memory. The designated box number is output to the signal line 44a.

The designation circuit 46 is a circuit for designating a box number for performing memory polling transmission when performing memory polling reception, and the designated box number is output to the signal line 46a. The selective polling signal notifies the memory polling receiver side to the memory polling transmitter side.

The setting circuit 48 is a circuit for setting the password signal of the own device, and when the password is set,
At the time of transmission and at the time of memory polling reception, the password is transmitted, and at the time of reception and at the time of memory polling transmission, when the password signal is received from the other device, it is compared with the password set in the own device,
If they match, reception and memory polling transmission are executed. If the password is not set, the password signal is not transmitted at the time of transmission and at the time of memory polling reception. Here, the password signal is output to the signal line 48a.

The selection circuit 50 receives a digital command signal with an option signal or a digital transmission command signal on the receiver side or the polling transmitter side, but when the specified option signal cannot be received,
The initial identification signal is retransmitted or the CRP signal is transmitted. Alternatively, either waiting for the signal from the other device 1
Is a circuit for selecting one of the two, and the selected information is the signal line 5
It is output to 0a.

In the same case as the selecting circuit 50, the setting circuit 52 selects the operation (resending the initial identification signal or transmitting the CRP signal) corresponding to the number of times of receiving the digital command signal or the digital transmission command signal. This is a circuit for setting transmission (or waiting for a signal from the other device), and the set information is output to the signal line 52a.

In the first embodiment of the present invention, the control circuit 36 determines whether the received command signal includes a sub address signal or a password signal by a digital command signal (DC).
Control is performed to notify the other device by (S signal). Then, the receiver receives the DCS signal indicating that the sub-address signal or the password signal is included, and if it does not receive the designated sub-address signal or the password signal, it again sends out the signal of the DIS group, or C
The control is performed based on the operation selected from transmitting the RP signal or waiting for the retransmission of the reception command signal.

Next, FIGS. 2 to 7 are flow charts showing the operation of the control circuit 36 in this embodiment.

First, in S42, a signal of signal level "0" is output to the signal line 36a to turn off the CML. next,
In S44, a clear pulse is generated on the signal line 36g to clear the memory storage designation lamp 32. In this embodiment,
When the lamp 32 is turned on, the sub address signal designates that the reception information is stored in the memory box number designated by the designation circuit 42.

In S46, the information of the signal line 34a is input, and it is determined whether or not the output of the information stored in the memory circuit 26 is selected. When the output is selected, the process proceeds to S48 and the output is selected. If not, the process proceeds to S50.

In S48, the signal of the signal level "1" is output to the signal line 36d, and the information of the memory box number designated by the circuit 44 stored in the memory circuit 26 is output via the signal line 36e. . After the recording is completed, the signal of the signal level "0" is output to the signal line 36d.

In S50, it is determined whether or not reception is selected. If reception is selected, the process proceeds to S60, and if reception is not selected, the process proceeds to S52.

In S52, it is determined whether or not the transmission is selected. If the transmission is selected, the process proceeds to S116, and if the transmission is not selected, the process proceeds to S54 and other processes are performed.

In S60, a signal of signal level "1" is output to the signal line 36a to turn on the CML, and in S62,
Set the timer T1 to 35 seconds.

At S64, NSF / CSI / DIS signals are transmitted. Here, the 47th bit (with selective polling reception function), the 49th bit (with subaddress reception function), and the 50th bit (with password reception function) of the FIF of DIS are set to 1.

In S66, the T4 timer is set to 4.5 seconds for a manual incoming call and 3 seconds for an automatic incoming call. And
In S68, PWD / SUB / NSS / TSI / DCS
It is determined whether or not a signal is received, and if it is received, S72
If not, the process proceeds to S70.

In S70, it is determined whether or not the T4 timer has timed out. If the T4 timer has timed out, the process proceeds to S74. If the T4 timer has not timed out, the process proceeds to S68.

In S72, it is judged whether or not the DCS signal is received. When the DCS signal is received, the process proceeds to S78 and D
If the CS signal is not received, the process proceeds to S74.

In S74, it is determined whether or not the T1 timer has timed out. When the T1 timer has timed out, the process proceeds to S76, and when the T1 timer has not timed out, the process proceeds to S64.

In S76, a signal of signal level "0" is output to the signal line 36a to turn off the CML. And S
Return to 46.

In S78, it is determined whether or not the 49th bit or the 50th bit of the FIF of the DCS signal is 1. If YES, the process proceeds to S80, and if NO, S98.
Proceed to.

In S80, it is determined whether the 49th bit of the FIF of the DCS signal is 1 and the 50th bit is 0, that is, whether subaddress reception is designated and password reception is not designated. In the case, the process proceeds to S82, and in the case of NO, the process proceeds to S92.

In the ITU-T acceleration recommendation, it is decided to set all 47th, 49th and 50th bits of the FIF of the DCS signal to 0. However, in this embodiment, when the 49th bit of the FIF of the DCS signal is 1,
The SUB signal also indicates that the SUB signal is transmitted as a multi-frame, and when 0 indicates that the SUB signal is not transmitted as a multi-frame. In addition, the FIF of the DCS signal
When the 50th bit of is 1, the PWD signal is also transmitted as a multiframe, and when it is 0, PWD signal is transmitted.
It means that the WD signal is not transmitted as a multi-frame. I promise the above.

In S82, it is judged whether or not the SUB signal is received. When the SUB signal is received, S8
When the memory reception is performed after 4 and the SUB signal is not received, it is determined that the reception of the SUB signal has failed, and the process proceeds to S180.

At S84, the remaining pre-procedures are performed, and S86 is performed.
Then, the received information is stored in the memory circuit 26 of the memory box designated by the SUB signal via the signal line 36e. Then, in S88, a post-procedure is performed, and in S90,
The signal of the signal level "0" is output to the signal line 36a and the CM
The L is turned off, and the process returns to S46.

Further, in S92, it is determined whether the 49th bit of the FIF of the DCS signal is 0 and the 50th bit is 1, that is, whether there is no designation of subaddress reception and designation of password reception, and YES. If NO, the process proceeds to S94, and if NO, the process proceeds to S112.

In S94, it is determined whether or not the PWD signal is received. When the PWD signal is received, the process proceeds to S96, and when the PW signal is not received, it is determined that the PWD signal reception has failed, and S180 Proceed to.

At S96, the PWD signal and the receiver circuit 4
It is determined whether or not the passwords set in 8 match, and if they match, the process proceeds to S98, and if they do not match, the process proceeds to S106.

In S98, the remaining pre-procedures are performed, and S10 is executed.
At 0, image signals are received and recorded. And S1
In 02, a post-procedure is performed, and in S104, the signal line 36a.
Output a signal of signal level "0" to the CML to turn off,
Return to S46.

In step S106, the remaining pre-procedure is performed.
Here, since the passwords do not match, it is notified that the communication will be interrupted. Then, in S108, a signal having a signal level "0" is output to the signal line 36a to turn off the CML, and S1
In 10, the fact that the communication is interrupted because the passwords do not match is recorded in the communication result report.

In S112, it is determined whether or not the PWD signal is received, and if the PWD signal is received, S114.
If the PWD signal is not received, it is determined that the PWD signal reception has failed, and the process proceeds to S180.

In S114, it is determined whether or not the PWD signal and the password signal set in the receiver circuit 48 match. If they match, the process proceeds to S82, and if they do not match, the process proceeds to S106. .

In S180, the information of the signal line 50a is input, the information of the circuit 50 is read, and the digital command signal with the option signal is received, but when the specified option signal cannot be received, the initial identification signal is retransmitted. To do
Alternatively, when it is determined which operation is selected from the transmission of the CRP signal or the retransmission of the reception command signal and the retransmission of the initial identification signal is selected, the process proceeds to S64 of FIG. If waiting for a signal from the other party is selected, the process proceeds to S68 in FIG. 3. If it is selected to transmit the CRP signal, the CR is performed in S182.
After transmitting the P signal, the process proceeds to S68 in FIG.

In S116, a signal of signal level "1" is output to the signal line 36a to turn on the CML, and in S118, the timer T1 is set to 35 seconds.

In S120, it is determined whether or not the NSF / CSI / DIS signal is received, and the NSF / CSI / DIS signal is received.
When the signal is received, the process proceeds to S126 and NSF / CSI /
If the DIS signal is not received, the process proceeds to S122.

In S122, it is determined whether or not the timer T1 has timed out. If the timer T1 has timed out, the process proceeds to S124. If the timer T1 has not timed out, the process returns to S120.

In S124, a signal of signal level "0" is output to the signal line 36a to turn off the CML, and the process returns to S46.

In S126, it is determined whether the password is set in the circuit 48 and the password communication is selected. If the password communication is selected, the process proceeds to S128. If the password communication is not selected, the process proceeds to S138. move on.

At S128, the FIF of the DIS signal is set to 50.
It is determined whether the bit is 1, that is, whether or not the password reception function is provided. If YES, the process proceeds to S136,
If NO, the process proceeds to S130.

At S130, the remaining pre-procedures are performed. Here, it is notified that the password communication cannot be performed. S132
Then, the signal of the signal level "0" is output to the signal line 36a to turn off the CML. Then, in S134, the fact that password communication is not possible is recorded in the communication result report, and S4
Return to 6.

In S136, the FIF of the DCS signal is set to 50.
The bit is set to 1 so that the receiver is notified that the PWD signal is to be transmitted, and the PWD signal is to be transmitted.

In S138, it is determined whether the sub-address communication is selected, that is, specifically, the lamp 32 is turned on and the storage box number is designated by the circuit 42. Then, if YES, the process proceeds to S140, and if NO, the process proceeds to S150.

In S140, the FIF of the DIS signal is set to 49.
It is determined whether or not the bit is 1, that is, whether or not the partner receiver has a sub-address receiving function, and YES
If NO, the process proceeds to S148, and if NO, the process proceeds to S142.

At S142, the remaining pre-procedures are performed. Here, it is notified that the sub-address communication cannot be performed. Then, in S144, the signal of the signal level "0" is output to the signal line 36a to turn off the CML, and in S146, the fact that the sub-address communication cannot be performed is recorded in the communication result report,
Return to S46.

In S148, the 49th bit of the DCS signal is set to 1 to notify the receiver that the SUB signal will be transmitted, and the SUB signal will be transmitted. Then, in S150, based on S136 and S148, P
It transmits WD / SUB / NSS / TSI / DCS signals. Further, in S152, the remaining pre-procedure is performed, and S
At 154, the image signal is read and transmitted. After this,
In S156, the post-procedure is performed, and in S158, the signal line 3
A signal of signal level "0" is output to 6a to turn off CML, and the process returns to S46.

In the above first embodiment, the PWD and SUB signals are transmitted as the reception command signal, and at this time, the DC signal is transmitted.
It was considered to notify that fact by the FIF of the S signal. However, as the second embodiment of the present invention, the PWD and SEP signals may be sent to the transmission command signal, and at this time, the fact that these signals are being sent may be notified by the FIF of the DTC signal. Here, whether or not the PWD signal is present is determined by the DTC.
The signal is assigned to the 65th bit of the FIF, and the presence or absence of the SEP signal is assigned to the 66th bit of the FIF of the DTC signal.

Also in this case, as in the first embodiment, in the facsimile apparatus capable of notifying the partner machine by the digital transmission command signal (DTC signal) whether or not the transmission command signal includes the option signal, When the polling transmitter receives the digital transmission command signal with the option signal but cannot receive the designated option signal, it retransmits the initial identification signal or transmits the CRP signal. Alternatively, any one can be selected from waiting for the retransmission of the transmission command signal. And in the following description,
It is assumed that the partner machine is notified by the digital transmission command signal whether or not the transmission command signal includes the password signal or the selective polling signal.

8 to 12 are flow charts showing a part of the control of the third embodiment which is different from that of the first embodiment (FIGS. 2 to 7).

In FIG. 8, S190 is S66 of FIG.
Is represented. Next, in S192, PWD / SEP
It is determined whether or not the / NSC / CIG / DTC signal is received. If it is received, the process proceeds to S196, and if it is not received, the process proceeds to S194.

In S194, it is determined whether or not the T4 timer has timed out. If the T4 timer has timed out, the flow proceeds to S198 (S74 in FIG. 3). If the T4 timer has not timed out, the flow proceeds to S192.

In S196, it is determined whether or not the DTC signal is received. When the DTC signal is received, the process proceeds to S200,
If the DRC signal is not received, the process proceeds to S198.

In S200, the FTC of the DTC signal is set to 65.
It is determined whether the 1st bit or the 66th bit is 1, and if YES, the process proceeds to S202, and if NO, the S
Proceed to 218.

In step S202, the FIF of the DTC signal 66
It is determined whether the bit is 1 and the 65th bit is 0, that is, whether selective polling communication is designated and password communication is not designated. If YES, the process proceeds to S204, and if NO, Advances to S212.

The 47th, 49th, and 50th bits of the FTC of the DTC signal indicate presence / absence of selective polling ability, subaddress ability, and password ability, respectively. When 1 is set, each signal can be received, and when 0, each signal is received. The signal cannot be received. Then, the FTC of the DTC signal 66
When the 1st bit is 1, it means that the SEP signal is also transmitted as a multiframe, and when it is 0, it means that the SEP signal is not transmitted as a multiframe. Also, when the 65th bit of the FTC of the DTC signal is 1,
The PWD signal also indicates that it is transmitted as a multi-frame, and when it is 0, it indicates that the PWD signal is not transmitted as a multi-frame. I promise the above.

In S204, it is determined whether or not the SEP signal is received. When the SEP signal is received, the SEP signal is received.
After 206, memory polling transmission of information in the memory box designated by the SEP signal is performed, and S
When the EP signal is not received, it is determined that the reception of the SEP signal has failed, and the process proceeds to S226.

At S206, the remaining pre-procedures are performed. Then, in S208, memory polling transmission of information stored in the memory circuit 38 of the memory box designated by the SEP signal is performed via the signal line 36h. After this, the process proceeds to S210 (S88 in FIG. 3).

Further, in S212, the FTC of the DTC signal is
The 66th bit is 0 and the 65th bit is 1, that is, whether selective polling communication is not specified and password communication is specified, the process proceeds to S214 if YES, to S222 if NO. move on.

In S214, it is determined whether or not the PWD signal is received. When the PWD signal is received, S216 is performed.
When the PW signal is not received, it is determined that the reception of the PWD signal has failed, and the process proceeds to S226.

In S216, it is determined whether or not the PWD signal and the password set in the circuit 48 on the polling transmitter side match. If they match, the process proceeds to S218, and if they do not match, S106 in FIG. Proceed to.

In S218, the remaining pre-procedures are performed, and S2
At 20, the information in the memory box 0 of the memory circuit 38 is polled and transmitted. Then, the process proceeds to S210.

In S222, it is determined whether or not the PWD signal is received, and if the PWD signal is received, S224.
If the PWD signal is not received, the process proceeds to step S210, and the process proceeds to step S210.

In S224, it is determined whether or not the PWD signal and the password signal set in the circuit 48 on the polling transmitter side match, and if they match, the process proceeds to S204. 4 to S106.

In S226, the information of the signal line 50a is input, the information of the circuit 50 is input, and the digital transmission command signal with the option signal is received, but when the specified option signal cannot be received, the initial identification signal is sent. When it is selected to retransmit the initial identification signal by judging which operation is selected from among retransmitting, transmitting the CRP signal, and waiting for the retransmission of the reception command signal. If it is selected to wait for a signal from the other party in S64 of 2 and proceed to S230 (S192 of FIG. 8), and if it is selected to transmit a CRP signal, S
After transmitting the CRP signal at 228, the process proceeds to S230.

In S232, S48 in FIG. 2 is represented. Next, in S234 and S236, polling transmission,
Alternatively, it is determined whether polling reception is selected, and if polling transmission is selected, the process proceeds to S238 (S60 in FIG. 2), and if polling reception is selected, S24.
0 (S116 in FIG. 6), and if neither is selected, the process proceeds to S242 (S54 in FIG. 2).

S244 represents YES in S128 of FIG. In S246, the FTC of the DTC signal is set to 65.
The bit is set to 1, and the polling transmitter is notified that the PWD signal is to be transmitted, and the PWD signal is transmitted.

In S248, it is determined whether or not the selective polling communication is selected, that is, specifically, the box number for memory polling is designated in the circuit 46. If YES, proceed to S250, NO
In case of, it progresses to S262.

In S250, the FIF of the DIS signal is set to 47.
Whether the bit is 1 or not, that is, the partner receiver is SE
Judge whether or not it has a P signal reception function, and
If NO, the process proceeds to S260, and if NO, the process proceeds to S252.

At S252, the remaining pre-procedures are performed. Then, during this procedure, the fact that selective polling communication cannot be performed is notified. Then, in S254, the signal of the signal level "0" is output to the signal line 36a to turn off the CML, and in S256, the fact that selective polling communication cannot be performed is recorded in the communication result report, and in S258 (S46 in FIG. 2). Return.

In S260, the 66th bit of the DTC signal is set to 1 to notify the polling transmitter side that the SEP signal is to be transmitted, and the SEP signal is to be transmitted. Then, in S262, S246 and S260.
Based on the above, the PWD / SEP / NSC / CIG / DTC signal is transmitted. Furthermore, the remaining pre-procedure is performed in S264, and polling reception is performed in S266. Here, when the SEP signal is transmitted, the polling transmission side transmits the information of the memory box designated by the SEP signal.

As a third embodiment of the present invention, in the configuration of the first embodiment, it is determined whether the received command signal includes a non-standard device setting (NSS) signal by the digital command signal (DCS). For example, the 67th bit of the FIF may notify the other device.

For example, it is effective when the standard or fine mode is designated by the DCS signal and the super fine mode is designated by the NSS signal.

FIG. 13 is a flow chart showing the part of the control in this case that is different from the first embodiment.

First, S160 represents YES in S72. Then, in S162, F of the DCS signal is
It is determined whether the 67th bit of the IF is 1, that is, whether the NSS signal is also transmitted. If YES, the process proceeds to S164, and if NO, the process proceeds to S168 (S78 above).

In S164, it is determined whether or not the NSS signal is received. If the NSS signal is received, the process proceeds to S168 (above S78), and if the NSS signal is not received, the S1 signal is received.
66 (S74).

Further, S170 is YES in the above S120.
Is represented. Then, in S172, it is determined whether or not the NSF signal is received. If the NSF signal is received, the process proceeds to S174, and if the NSF signal is not received, the process proceeds to S178 (S126 above).

In S174, it is determined whether or not the NSS signal is transmitted. When the NSS signal is transmitted, the process proceeds to S176, and when the NSS signal is not transmitted, the process proceeds to S178 (S126 above).

In step S176, the FIF of the DCS signal is set to 67.
The bit is set to 1, the sending of the NSS signal is specified to the receiver of the other party, and the NSS signal is set to be sent.

Further, as a fourth embodiment of the present invention, in the first embodiment, the receiving command signal includes the transmitting station identification (TSI).
Digital command signal (DCS) whether signal is included or not
For example, the other device may be notified by the 68th bit of FIF. The operation in this case is the same as the third operation shown in FIG.
The description is omitted because it is almost the same as the embodiment.

As a fifth embodiment of the present invention, the initial identification signal is applied to the third and fourth embodiments, and a non-standard device (NSF) signal or a called station identification signal (CS) is applied.
I) is included in the digital identification signal (DI
The other machine may be notified in S). For example, the presence or absence of NSF is the 67th bit of the FIF of DIS, and the presence or absence of CSI is DIS.
The 68th bit of the FIF is used.

As a sixth embodiment of the present invention, a transmission command signal is applied to the third and fourth embodiments to apply a non-standard device command (NSC) signal or a calling station identification (CI).
G) A digital transmission command (D
The other device may be notified by a TC) signal. For example, NSC
The presence / absence of the DTC FIF is used for 67th bit, and the presence / absence of CIG is used for the 68th bit of DTC FIF.

Next, as a seventh embodiment of the present invention, in the control of the above-mentioned embodiment, when the receiver side receives the digital command signal with the option signal but cannot receive the designated option signal, or When the polling transmitter receives the digital transmission command signal with the option signal but cannot receive the specified option signal, the operation for receiving the reception command signal or the transmission command signal may be changed according to the number of receptions. .

Specifically, when the option signal is specified, but the option signal cannot be received, the reception command signal or the transmission command signal is received up to the second time when the reception command signal or the transmission command signal is received. Resend. Three
At the first time, the initial identification signal is retransmitted, and these three operations are repeated. As a result, DIS is sent in response to the reception of the DTC signal, and the line is disconnected at least for the second time, and the communication time for these two times can be shortened. And DCS
If the signal does not respond to three retransmissions, a communication error will occur.
For the third DCS signal, a DIS signal is sent,
Communication can be secured.

FIGS. 14 and 15 are flowcharts showing a part of the control at the time of receiving the DCS signal in the seventh embodiment, which is different from the first embodiment (FIGS. 2 to 7). In addition, FIG. 16 shows the DTC in the seventh embodiment.
13 is a flowchart showing a part different from the second embodiment (FIGS. 8 to 12) in the control at the time of receiving a signal.

First, in FIG. 14, in S276, D
It is assumed that the circuit 52 is set as follows as an operation corresponding to the number of times the CS group signal or the DTC group signal is received. That is, as a specific example,
It waits for the signal of the other party for the first and second times and sends DIS for the third time. This operation is repeated three times.

Further, in S278, YE in S50 of FIG.
Represents S. Then, in S280, a DCS reception counter that indicates the number of times DCS is received is set to zero.
After that, in S282, the process proceeds to S60 and subsequent steps in FIG.

Next, in FIG. 15, S284 and S28
6, S288 represent NO of S82 of FIG. 3, NO of S94 of FIG. 4, and NO of S112 of FIG. 4, respectively.

In step S290, since DCS has been received, the value of the DCS reception counter is incremented by 1. Next, in S292, S294, S296, and S298, the operation is set based on the setting information of the circuit 52. In this case, if the reception counter of the DCS is 1 or 2, the signal of the other party is set, so S294 ( S in FIG.
68), if the DCS reception counter is 3, D
Since the IS signal is set to be retransmitted, the process proceeds to S296 and DC
After clearing the S reception counter, S298 (S64 in FIG. 2)
Proceed to.

Further, in FIG. 16, S300 and S30
2 and S304 represent NO of S204 of FIG. 8, NO of S214 of FIG. 9, and NO of S222 of FIG.

Next, in S306, since the DTC has been received, the value of the DTC reception counter is incremented by one. After this, S308, S310, S312, S314
Determines the operation based on the setting information of the circuit 52. In this case, if the reception counter of the DTC is 1 or 2, the signal of the other party is set.
192), if the DTC reception counter is 3,
Since the DIS signal is set to be retransmitted, the DTC reception counter is cleared (S312) and then the process proceeds to S314 (S64 in FIG. 2).

Further, S316 is YES in S50 of FIG.
Is represented. Then, in step S318, the DTC reception counter is cleared. After this, in S320, S in FIG.
Go to 60 or later.

[0125]

As described above, according to the first invention of the present application, control is performed when the receiver receives the digital command signal with the option signal but cannot receive the designated option signal. By making it possible to select, and waiting for the transmission of the CRP signal or the retransmission of the DCS group, the communication time can be shortened and it becomes easy to use.

According to the second and third inventions of the present application, the option signal for designating the presence or absence of the digital command signal has been clarified.

Further, according to the fourth invention of the present application, it becomes possible to select the control when the polling transmitter receives the digital transmission command with the option signal but cannot receive the designated option signal. , The DIS group signal will be retransmitted, and communication will not be lost immediately.
Further, by waiting for the transmission of the CRP signal or the retransmission of the DTC group, the communication time can be shortened and it becomes easy to use.

According to the fifth and sixth aspects of the present application, the option signal for designating the presence / absence of the digital transmission command signal has been clarified.

Further, according to the seventh and eighth inventions of the present application, the control in the case where the receiver receives the digital command signal with the option signal but cannot receive the designated option signal is the first. The communication time can be shortened only for the second time, and if no response is made or the RCP signal is transmitted for the third time, the transmitter retransmits three times and an error occurs.

Further, when the polling transmitter receives the digital transmission command signal with the option signal but cannot receive the designated option signal, the control can be shortened only for the first two times. become. And
Retransmission of DIS group signals prevents immediate communication interruption, no response for the third time, or RCP
When the signal was transmitted, the transmitter retransmitted three times and an error occurred, but such inconvenience disappeared.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a facsimile apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the first embodiment of the present invention.

FIG. 3 is a flowchart showing the operation of the first embodiment.

FIG. 4 is a flowchart showing the operation of the first embodiment.

FIG. 5 is a flowchart showing the operation of the first embodiment.

FIG. 6 is a flowchart showing the operation of the first embodiment.

FIG. 7 is a flowchart showing the operation of the first embodiment.

FIG. 8 is a flowchart showing the operation of the second embodiment of the present invention.

FIG. 9 is a flowchart showing the operation of the second embodiment.

FIG. 10 is a flowchart showing the operation of the second embodiment.

FIG. 11 is a flowchart showing the operation of the second embodiment.

FIG. 12 is a flowchart showing the operation of the second embodiment.

FIG. 13 is a flowchart showing the operation of the third embodiment of the present invention.

FIG. 14 is a flowchart showing the operation of the seventh embodiment of the present invention.

FIG. 15 is a flowchart showing the operation of the seventh embodiment.

FIG. 16 is a flowchart showing the operation of the seventh embodiment.

[Explanation of symbols]

 2 ... NCU, 4 ... Telephone, 6 ... Hybrid circuit, 8, 14 ... Modulator, 10 ... Read circuit, 12, 24 ... Encoding circuit, 16 ... Addition circuit, 18, 20 ... Demodulator, 22 ... Decoding circuit , 26 ... Memory circuit, 28 ... Recording circuit, 30 ... Memory storage selection button, 32 ... Memory storage designation lamp, 34 ... Memory information output instruction button, 36 ... Control circuit, 38 ... Memory circuit, 40 ... Decoding / magnification / Encoding circuit, 42, 44, 46 ... Box number designating circuit, 48 ... Password setting circuit, 50, 52 ... Setting circuit.

Claims (8)

[Claims] 1. In a facsimile apparatus having a function of notifying a partner machine of whether a received command signal includes an option signal by a digital command signal, the receiver side receives a digital command signal with an option signal. Has a means for selecting any one of retransmitting an initial identification signal, transmitting a CRP signal, or waiting for retransmission of a reception command signal when the designated option signal cannot be received. And a facsimile machine. 2. The facsimile apparatus according to claim 1, wherein the receiving command signal is notified to the partner machine by a digital command signal whether the sub-address signal or the password signal is included. 3. The facsimile apparatus according to claim 1, wherein the reception command signal includes a non-standard function setting signal or a transmission terminal identification signal to notify the partner machine by a digital command signal. 4. A facsimile apparatus having a function of notifying a partner machine by a digital transmission command signal of whether or not the transmission command signal includes an option signal, wherein the polling transmitter side has a digital transmission command signal with an option signal. If the specified option signal is not received but the initial identification signal is retransmitted, the CRP signal is transmitted, or the transmission command signal is retransmitted, there is provided means for selecting any one of them. A facsimile device characterized by the above. 5. A facsimile apparatus according to claim 4, wherein the partner machine is notified of whether or not the transmission command signal includes a password signal or a selective polling signal by a digital transmission command signal. 6. A facsimile apparatus according to claim 4, wherein whether or not the transmission command signal includes a non-standard function command signal or a calling station identification signal is notified to the partner machine by a digital transmission command signal. . 7. The method according to claim 1, wherein the receiver side receives a digital command signal with an option signal but cannot receive the designated option signal, or the polling transmitter side receives the option signal. A facsimile machine characterized in that, when a designated digital transmission command signal is received but a designated option signal cannot be received, the operation for receiving the reception command signal or the transmission command signal is changed according to the number of times of reception. 8. The option signal is specified in claim 7, but when the option signal cannot be received, the RCP signal is transmitted up to the second time when the reception command signal or the transmission command signal is received, or the reception command is received. A facsimile apparatus, which waits for a signal or a transmission command signal to be retransmitted, retransmits an initial identification signal for the third time, and repeats the operation three times.