JP3170200B2 - Facsimile communication apparatus and facsimile communication method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention particularly relates to a SUB signal,
The present invention relates to a facsimile communication device and a communication method capable of communicating an SEP signal and a PWD signal.

[0002]

2. Description of the Related Art Conventionally, a sub address (SUB) signal, a selective polling (SEP) signal, and a password (PWD) signal have been used in such a manner that a method of use is determined in advance on both a transmitting side and a receiving side. I have. That is, it is possible to execute a specific function by setting the values of the SUB, SEP, and PWD signals based on unique rules determined by the transmitting side and the receiving side.

[0003]

By the way, theoretically, SUB, SEP, and PWD can be used for a very wide range of applications. In communication, SUB, S
EP and PWD were not used flexibly, and there were few manufacturers that supported them.

[0004] It is an object of the present invention to provide a facsimile communication apparatus and a communication method that can effectively use a SUB signal and a SEP signal.

[0005]

According to the first, second, fifth, and sixth aspects of the present invention, a receiver notifies a transmitter of a usable application of a sub-address signal to a transmitter by a DIS signal. From receiver to receiver to use DCS
By designating with a signal, a sub-address signal whose use method is not defined at present can be defined by the DIS and DCS signals, so that the sub-address signal is more practical and can be effectively used.

According to the third, fourth, seventh and eighth aspects of the present invention, a polling transmitter notifies a polling receiver of a usable use of a selective polling signal by a DIS signal, and the polling receiver polls. By designating the use of the selective polling signal in the transmitter using the DTC signal, the selective polling signal, which currently has no usage specification, can be defined by the DIS and DTC signals, thereby enhancing the practicality of the selective polling signal and effectively using it. Becomes possible.

[0007]

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

An NCU (network control unit) 2 connects to a terminal of the line in order to use the telephone network for data communication and the like.
It controls connection of a telephone exchange network, switches to a data communication path, and holds a loop. The NCU 2 connects the telephone line 2a to the telephone 4 when the signal level (signal line 20a) from the control circuit 20 is “0”, and connects the telephone line 2a when the signal level is “1”. It is connected to the facsimile machine side.
In a 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 12 to the telephone line 2a via the NCU 2, and transmits the signal from the other party via the NCU 2. The signal is received and sent to the modem 8 via the signal line 6a.

The modulator / demodulator 8 is based on ITU-T Recommendation V. 8,
V. 21, V.I. 27ter, V.I. 29, V.I. 17, V.I.
34, and performs modulation and demodulation based on
Each transmission mode is designated by the signal line 20c. The modulator / demodulator 8 receives a signal output on a signal line 20b, outputs modulated data on a signal line 8a, receives a received signal output on a signal line 6a, and outputs demodulated data on a signal line 8b. Output.

The ANSam sending circuit 10 is a circuit for sending an ANSam signal. When a signal of signal level "1" is output to the signal line 20d, the ANSam sending circuit 10 sends the ANSam signal to the signal line 10a and sends it to the signal line 20d. When the signal of the signal level “0” is being output, no signal is output to the signal line 10a.

The addition circuit 12 receives the information of the signal line 8a and the information of the signal line 10a, and adds the result of the addition to the signal line 12a.
a. The reading circuit 14 reads an image of a document and outputs the read image data to a signal line 14a. The recording circuit 16 is for sequentially recording information output to the signal line 20e line by line.

The memory circuit 18 is used for storing raw information of read data or coded information, and also for storing received information or decoded information.

The selection key 22 is a key for selecting an application of the sub address communication. Each time the key 22 is pressed, a pressing pulse is generated on the signal line 22a.

Specifically, as subaddress communication, S
The UB signal and the SEP signal are included.
Specifies the number of the memory box by the SUB signal or the SEP signal. For example, at the time of transmission, which memory box stores the received information is specified by the SUB signal, and at the time of polling reception, which memory box information is to be polled and transmitted is specified by the SEP signal.

The application 2 assumes a system in which a plurality of terminals are connected via a LAN.
Which terminal is to be displayed is specified by the SUB signal, and at the time of polling reception, which terminal from the LAN is desired to be transmitted by polling is specified by the SEP signal. Hereinafter, use 1 is referred to as designation of a memory box, and use 2 is referred to as designation of a terminal.

The display circuit 24 is a circuit for displaying the purpose of sub-address communication. When a clear pulse is generated on the signal line 20g, "display of memory box" is displayed.
Every time a press pulse is generated on the signal line 22a, the display of “designation of terminal” → “designation of memory box” → “designation of terminal” is repeated. Then, when "designation of memory box" is displayed, a signal of signal level "0" is output to the signal line 24a, and when "designation of terminal" is displayed,
The signal of the signal level "1" is output to the signal line 24a.

The signal line 20f is a LAN interface through which the first terminal 26, the second terminal 2
8, the third terminal 30, the fourth terminal 32, the fifth terminal 3
4, sixth terminal 36, seventh terminal 38, eighth terminal 40
Is connected.

The control circuit 20 controls the entire facsimile apparatus. In this embodiment, in a normal facsimile communication, a plurality of uses of the SUB signal from the receiver to the transmitter in the normal facsimile communication are performed by the DIS signal. And a process of designating the usage of the SUB signal from the transmitter to the receiver using the DCS signal. At the time of polling communication, the polling transmitter notifies the polling receiver of the usable use of the SEP signal by the DIS signal, and the polling receiver specifies the use of the SEP signal to the polling transmitter by the DTC signal. Perform the following processing.

FIGS. 2 to 8 are flowcharts showing the control flow of the control circuit 20 in this embodiment.
FIG. 3 is an explanatory diagram showing a specific example of a FIF of DIS, DCS, and DTC signals used in the present embodiment.

First, the operation is started in S0, and in S2, a signal of signal level "0" is output to the signal line 20a to output the CML.
Turn off. In S4, a signal of signal level "0" is output to the signal line 20d, and the ANSam signal is not transmitted.

At S6, S8, and S10, it is determined in order whether incoming, transmission, and polling reception are selected. If an incoming call is selected, the process proceeds to S14, and if transmission is selected, S8 is selected.
The process proceeds to S6, and if polling reception is selected, the process proceeds to S118, and if none is selected, the process proceeds to S12 to perform other processing.

In S14, a signal of signal level "1" is output to the signal line 20a to turn on the CML, and in S16,
The timer T1 is set to 35 seconds.

Next, at S18, an NSF / DIS signal is transmitted. Here, the FIF of the DIS signal 47, 4
The bits 9, 50, X, and X + 1 are set to 1. Also, S20
Then, the timer T4 is set to 3.0 seconds for an automatic incoming call and 4.5 seconds for a manual incoming call.

Next, in S22 and S24, PWD / SU
B / NSS / TSI / DCS signal or PWD / S
It is determined whether an EP / NSC / CIG / DTC signal has been received. If a PWD / SUB / NSS / TSI / DCS signal has been received, the process proceeds to S30, where PWD / SEP / NS
When the C / CIG / DTC signal is received, the process proceeds to S58,
If neither is received, the process proceeds to S26.

In S26, it is determined whether or not the time of the T4 timer has expired.
Proceed to S22, and when the time is over, proceed to S28, T1
It is determined whether or not the timer has timed out. If the time is over, the process proceeds to S2, and if not, the process proceeds to S18.

In S30, it is determined whether or not the 49th bit of the FIF of the DCS signal is 1, that is, whether or not the transmission of the SUB signal is designated. If the transmission of the SUB signal is designated, the process proceeds to S38 and proceeds to S38. If no signal transmission is specified, S
Go to 32.

At S32, the remaining pre-procedures are performed, and at S34, image signals are received / recorded. Then, a post-procedure is performed in S36, and the process proceeds to S2.

In S38, it is determined whether or not the SUB signal has been received.
If the UB signal has not been received, the process proceeds to S18.

In S40, it is determined whether the X bit of the DCS signal FIF is 1, that is, whether the use of the SUB signal is a memory box or not. If the use is a memory box, the process proceeds to S46, and if the X bit of the FIF of the DCS signal is 0, that is, if the use of the SUB signal is not a memory box, the process proceeds to S42.

At S42, X + 1 of the FIF of the DCS signal
It is determined whether the bit is 1, that is, whether or not the use of the SUB signal is terminal designation. If the X + 1 bit of the FIF of the DCS signal is 1, that is, if the use of the SUB signal is terminal designation, the process proceeds to S52, and the DCS If the X + 1 bit of the signal FIF is 0, that is, if the purpose of the SUB signal is not terminal designation,
Proceed to S44.

In S44, it is determined whether the operation is selected when the use is not specified. If the memory box is selected as the use of the SUB signal, the process proceeds to S46, and if the terminal is specified, the process proceeds to S52. .

At S46, the remaining pre-procedures are performed, and at S48, the memory reception to the memory box designated by the SUB signal is performed. Then, in S50, a post-procedure is performed, and in S2
Proceed to.

At S52, the remaining pre-procedures are performed.
At 54, the received information is displayed on the terminal specified by the SUB signal via the LAN. Then, in S56, a post-procedure is performed, and the process proceeds to S2.

In S58, it is determined whether the 47th bit of the FTC of the DTC signal is 1, that is, whether or not the SEP signal is transmitted, and the 47th bit of the FTC of the DTC signal is 1, that is, the SEP signal is determined. Is sent, S6
Then, if the 47th bit of the FTC of the DTC signal is 0, that is, if the SEP signal is not transmitted, the process proceeds to S60.

In S60, the remaining pre-procedure is performed, and in S62, polling transmission of information stored in the common memory is performed. Then, in S64, a post-procedure is performed, and the process proceeds to S2.

In S66, it is determined whether or not the SEP signal has been received.
Proceeding to 68, if no SEP signal has been received, proceeding to S18.

In S68, it is determined whether the X-th bit of the DTC signal FIF is 1, that is, whether the use of the SEP signal is to designate a memory box. That is, if the purpose of the SEP signal is to designate a memory box, the process proceeds to S74, and the DTC
If the X bit of the signal FIF is 0, that is, if the purpose of the SEP signal is not the designation of a memory box, the process proceeds to S70.

At S70, the X + 1 of the DTC signal FIF
It is determined whether the bit is 1, that is, whether the use of the SEP signal is a designation of the terminal or not.
If the X + 1 bit of the IF is 1, that is, if the use of the SEP signal is the designation of the terminal, the process proceeds to S80, where the FTC of the DTC signal is
If the X bit of the IF is 0, that is, if the purpose of the SEP signal is not the designation of the terminal, the process proceeds to S72.

In S72, it is determined whether the operation is selected when the use is not specified. If the use is selected for the memory box, the process proceeds to S74, and if the use specified for the terminal is selected, the process proceeds to S80.

At S74, the remaining pre-procedures are performed, and at S76, polling transmission of information of the memory box designated by the SEP signal is performed. Then, a post-procedure is performed in S78, and the process proceeds to S2.

In S80, the remaining pre-procedures are performed.
At 82, polling transmission of information on the terminal specified by the SEP signal is performed. Then, in S84, a post-procedure is performed, and the process proceeds to S2.

In S86, a signal of signal level "1" is output to the signal line 20a to turn on the CML. In S88, the timer T1 is set to 35 seconds. Next, in S90, it is determined whether or not the NSF / CSI / DIS signal has been received. If the signal has been received, the process proceeds to S94.
Proceed to S92.

In S92, it is determined whether or not the timer T1 has timed out. If the time has elapsed, the process proceeds to S2, and if not, the process proceeds to S90.

In S94, it is determined whether or not transmission of a SUB signal has been selected. If so, the flow proceeds to S96, and if not, the flow proceeds to S98.

In S96, it is determined whether or not the 49th bit of the FIF of the DIS signal is 1, and if it is 1, the process proceeds to S10.
The process proceeds to S98, and if it is 0, the process proceeds to S98.

At S98, an NSS / TSI / DCS signal is transmitted. Here, DCS signal FIF 47, 4
The bits 9, 50, X, and X + 1 are all set to 0. next,
In S100, the remaining pre-procedure is performed, and in S102, the image signal is transmitted. Then, in S104, a post-procedure is performed.
Proceed to 2.

In S106, the information of the signal line 24a is input to determine the use of the sub-address communication. If the memory box is designated, the flow advances to S108 to set the 47, 50, and X + 1 bits of the FIF of the DCS signal to 0. , 49, and X bits transmit 1 SUB / NSS / TSI / DCS signal, and the process proceeds to S112.

If the designation is for a terminal, the process proceeds to S110, where 47 and 50 and the X bit of the FIF of the DCS signal are 0,
49, X + 1 bit is 1 SUB / NSS / TSI / D
A CS signal is transmitted, and the process proceeds to S112.

At S112, the remaining pre-procedures are performed.
In step 4, the image signal is transmitted. Then, in S116, a post-procedure is performed, and the process proceeds to S2.

In S118, a signal of signal level "1" is output to the signal line 20a to turn on the CML, and in S12
At 0, it is determined whether an NSF / CSI / DIS signal has been detected. If not detected, the process proceeds to S122, where it is determined whether or not the timer T1 has timed out.
If the time is over, the process proceeds to S2, and if not, the process proceeds to S120.

When the detection is made, the process proceeds to S124 and SE
It is determined whether transmission of the P signal has been selected. If the transmission has been selected, the process proceeds to S126. If the transmission has not been selected, the process proceeds to S126.
Proceed to 128.

At S126, the FIF 47 of the DIS signal
It is determined whether the bit is 1 or not, and if it is 1, S1
Proceed to S36, and if it is 0, proceed to S128.

In step S128, the DTC signal FIF
, 49, 50, X, and X + 1 bits are all 0, and an NSC / CIG / DTC signal is transmitted.

Next, in S130, the remaining pre-procedures are performed.
In S132, polling reception and recording are performed. And S
At 134, a post-procedure is performed, and the process proceeds to S2.

In S136, the information of the signal line 24a is input, and the purpose of the selective polling communication is determined. If the memory box is designated, the flow advances to S138 to set the 49, 50 and X + 1 bits of the DTC signal FIF to 0, 47, X
Bit is set to 1 SEP / NSC / CIG / DT
The C signal is transmitted, and if it is designated by the terminal, the process proceeds to S140, where 49, 50, X bits of the FTC of the DTC signal are set to 0, 47, and X + 1 bit is set to 1 in SEP / NS.
The C / CIG / DTC signal is transmitted.

Thereafter, in S142, the remaining pre-procedure is performed, and in S144, polling reception and recording are performed. Then, in S146, a post-procedure is performed, and the process proceeds to S2.

As described above, in the present embodiment, the designation of the memory box and the designation of the terminal, which are the uses of the SUB signal and the SEP signal in the sub-address communication, are designated by the DIS signal, the DCS signal, and the DTC signal. The function of the sub-address communication can be used effectively. Of course, it is needless to say that the functions of the present invention can be similarly used for uses other than the designation of the memory box and the terminal.

[0059]

As described above, according to the present invention,
Currently, SUB signals without usage rules are DIS, DC
Since it can be specified by the S signal, the practicality is enhanced and the SUB
Effective use of signals becomes possible. Further, since the SEP signal whose use method is not specified at present can be specified by the DIS and DTC signals, the practicality is improved and the SEP signal can be effectively used.

[Brief description of the drawings]

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

FIG. 2 is a flowchart showing the operation of the embodiment.

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

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

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

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

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

FIG. 8 is a flowchart showing the operation of the embodiment.

FIG. 9 shows DIS, DCS and DTC used in the above embodiment.
FIG. 4 is an explanatory diagram showing a specific example of a signal FIF.

[Explanation of symbols]

 2 ... NCU, 4 ... telephone, 6 ... hybrid circuit, 8 ... modulator / demodulator, 10 ... ANSam sending circuit, 12 ... addition circuit, 14 ... reading circuit, 16 ... recording circuit, 18 ... memory circuit, 20 ... control circuit, 20f ... LAN interface, 22 ... selection key, 24 ... display circuit, 26-40 ... terminal.

Claims (8)

(57) [Claims] 1. A means for notifying a usable use of a sub-address signal from a receiver to a transmitter by a DIS signal,
From the transmitter to the receiver, specify the usage of the subaddress signal.
Facsimile communication device having means for designating with a CS signal. 2. The facsimile communication apparatus according to claim 1, wherein the subaddress signal notified by the DIS signal can be used for a plurality of uses. 3. A polling transmitter transmits a selective polling signal to a polling receiver.
A facsimile communication apparatus comprising: means for notifying by an IS signal; and means for designating a use purpose of a selective polling signal from a polling receiver to a polling transmitter by a DTC signal. 4. The facsimile communication apparatus according to claim 3, wherein the selective polling signal notified by the DIS signal can be used for a plurality of purposes. 5. A facsimile machine wherein the receiver notifies the transmitter of the use of the sub-address signal by a DIS signal, and the transmitter specifies the use of the sub-address signal to the receiver by a DCS signal. Communication method. 6. The facsimile communication method according to claim 5, wherein there are a plurality of uses of the sub-address signal notified by the DIS signal. 7. A polling transmitter sends a polling receiver to a polling receiver, the use of which selective polling signal can be used.
A facsimile communication method in which a polling receiver notifies the polling transmitter of the use of the selective polling signal by using a DTC signal. 8. The facsimile communication method according to claim 7, wherein there are a plurality of uses of the selective polling signal notified by the DIS signal.