JP3491916B2 - Facsimile machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile machine, and more particularly to a facsimile machine which can retransmit from an erroneous page.

[0002]

2. Description of the Related Art In a conventional facsimile apparatus capable of resending from an erroneous page, a transmitter notifies a receiver that re-sending from an erroneous page is possible, or resending from an actually erroneous page. When doing
It did not notify that by the procedure signal.

[0003] Here, it has been proposed that when the page is retransmitted from an error page, a part of the image information should be sent with the information included. However, since the procedure signal was not included to that effect, the receiver could not recognize whether it was a normal reception operation or retransmission from the page in error.

[0004]

However, since the receiver could not recognize whether it was the retransmission from the erroneous page, the error communication (reception) and the retransmission communication (reception from the erroneous page were received. ), Other communication (reception) is included, and the user cannot recognize at a glance that these two communication (reception) are the same communication (reception), and there is a disadvantage in that they cannot be distributed correctly. It was

[0005]

According to the present invention, when a communication error occurs, in a facsimile apparatus capable of re-sending from an erroneous page, when it operates as a transmitter, the other receiver receives from the erroneous page. In the pre-procedure, the notifying means is used to notify the receiver of the other party of the fact that the re-transmission is possible, and on the other hand, when operating as a receiver, a means for storing reception information is provided. When the reception information is stored in the storage means by using the communication device, and the storage of the reception information in the storage means for one communication is completed, the recording operation is started using the recording means, and the reception is notified from the transmitter. When an error occurs during reception, the communication is terminated and the reception is also permitted from the other party, and when the reception information from the other party is stored in the storage means for one communication, the reception information is order When the data is recorded and retransmitted from the page that has an error within a predetermined time, the number of pages is continuously stored in the storage unit, and error-free reception information is stored in the storage unit for one communication. When recording is started and no error page is retransmitted within the predetermined time,
It is characterized in that it is processed as a communication error and the information received so far is output from the storage means.

[0006]

[0007]

[0008]

[0009]

[0010]

[0011]

[0012]

(Embodiment 1) The present invention will be described in detail below with reference to an embodiment shown in the drawings.

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

In FIG. 1, numeral 2 denotes a telephone network used for data communication and the like. Therefore, the telephone is connected to a terminal of the line to control connection of the telephone switching network, switch to a day communication path, and loop. Network control unit NCU (Network)
ork Control Unit). Signal line 2
a is a telephone line. The NCU 2 inputs the signal on the signal line 40a, and if the signal level is "0", connects the telephone line to the telephone side, that is, the signal line 2a to the signal line 2b. If the signal on the signal line 40a is input and the signal level is "1", the telephone line is connected to the facsimile machine side, that is, the signal line 2a is connected to the signal line 2c. In a normal state, the telephone line is connected to the telephone side.

Reference numeral 4 is a telephone.

Reference numeral 6 is a hybrid circuit for separating a transmission system signal and a reception system signal. That is, the signal line 20a
Is transmitted to the telephone line through the signal line 2c and the NCU2. Further, the signal sent from the other party is output to the signal line 6a after passing through the NCU 2 and then the signal line 2c.

Reference numeral 8 is a modulator for performing the modulation based on the well-known CCITT recommendation V21. The modulator 8 uses the signal line 40
The procedure signal of b is input, modulation is performed, and the modulation data is also output to the signal line 8a.

Reference numeral 10 denotes a reading circuit, which is used for reading a transmission original.
The image signals for one line in the main scanning direction are sequentially read to create a signal train representing binary black and white. It is composed of an image pickup device such as a CCD (charge coupled device) and an optical system. The black and white binarized signal train is output to the signal line 10a.

Reference numeral 12 inputs the read data output to the signal line 10a, and outputs encoded data (MR (Modified Read) encoding of K = 8) to the signal line 12a.

Reference numeral 14 is a memory circuit, which is a signal line 40c.
The encoded data output to the signal line 12a is stored in the memory circuit 14 according to the control of 1), and the data stored in the memory circuit 14 is output to the signal line 14a according to the control of the signal line 40c.

Reference numeral 16 decodes the information output to the signal line 14a according to the control of the signal line 40d as necessary, scales it according to the receiver of the other party, and again encodes the encoded information. A decoding, scaling, and encoding circuit for outputting to the signal line 16a.

Reference numeral 18 is a known CCITT recommendation V27te.
It is a modulator that performs modulation based on r (differential phase modulation) or V29 (quadrature modulation). The modulator 18 uses the signal line 1
The signal 6a is input, modulation is performed, and the modulated data is output to the signal line 18a.

Reference numeral 20 denotes an adder circuit which inputs the signals of the signal line 8a and the signal line 18a and outputs the addition result to the signal line 20a.

Reference numeral 22 is a demodulator for performing demodulation based on the well-known CCITT recommendation V21. The demodulator 22 receives the signal on the signal line 6a, performs V21 demodulation, and outputs the demodulated data to the signal line 22a.

Reference numeral 24 is a known CCITT recommendation V27te.
It is a demodulator that performs demodulation based on r (differential phase modulation) or V29 (quadrature modulation). The demodulator 24 receives the signal on the signal line 6a, demodulates it, and outputs demodulated data to the signal line 24a.

In accordance with the control of the signal line 40e, the reference numeral 26 inputs the information outputted to the signal line 24a, decodes it once, and again, the data encoded by the MR of K = 8 is inputted to the signal line 26a. This is a decoding / encoding circuit that outputs the output and decoded data to the signal line 26b.

Reference numeral 28 denotes a memory circuit, which is a signal line 40f.
The encoded data output to the signal line 26a is stored in the memory circuit 28 under the control of 1), and the data stored in the memory circuit 28 is output to the signal line 28a according to the control of the signal line 40f.

Reference numeral 30 is for inputting the signal output to the signal line 28a for decoding and MR (modified read).
The decoding circuit outputs the decoded data to the signal line 30a.

Reference numeral 32 is a recording circuit (LBP) for inputting the data output to the signal line 30a and sequentially recording one line at a constant speed.

Reference numeral 34 is an automatic calling circuit, which is a signal line 40.
When a call command pulse is generated at h, the telephone number information output to the signal line 40g is input and the selection signal is sent to the signal line 2
output to b.

Reference numeral 36 is a circuit for storing the other party to which an error is retransmitted. When the communication error occurs in the circuit 36 and the destination to be retransmitted is to be stored, the destination number (10 communications from 00 to 09) is considered in the signal line 36a. 00), space, and communication number (any one from 0000 to 9999 1
, For example, 1000, space, and communication start date and time (for example, April 15, 1992 1 April 1)
In the case of 0:10, 9204151010), a space, and a destination telephone number (for example, 03-
3758-2111), the control circuit 40 generates a write pulse on the signal line 40i. Further, when reading the information stored in the circuit 36, the signal line 36a
After outputting the destination number (for example, 00), the control circuit 40 generates a read pulse to the control circuit 40j. Then, the communication number (for example, 1000) registered corresponding to the destination number (for example, 00), the space, the communication start date and time (for example, 9204151010), the space, and the destination telephone number (for example, 9204151010) , 03
-3758-2111) to the signal line 36a.

Reference numeral 38 denotes a communication partner to whom the transmitter side is notified when the error occurs during the communication and the information that the page to be retransmitted is to be retransmitted when the error occurs during the communication. This is a circuit that stores the telephone number, communication number, and communication start time notified from the destination number destination. When registering in the circuit 38, consider the destination number (10 communication from 00 to 09, for example, 0
1), space, telephone number of communication side (03-3481-1111), space, communication number of transmission side (for example, 1111), space and communication start time (92) April 15
At 10:20 on the day, 9204151020) is output to the signal line 38a, and then a write pulse is generated on the signal line 40k. Further, when reading the information registered in the circuit 38, the transmission destination number (for example, 0
After outputting 1), a read pulse is generated on the signal line 40l. Then, the telephone number (03-348) on the transmitter side registered corresponding to the destination number (for example, 01).
1-1111), the space, the communication number of the transmission side (for example, 1111), the space, and the communication start time (for example, 9204151020) are output to the signal line 38a.

When a communication error occurs, a facsimile device 40 is capable of re-sending from an erroneous page. In the pre-procedure, the transmitter first notifies the counterpart receiver of that fact. Here, the receiver does not record the error page during the communication when the communication error occurs from the transmitter and the fact that the error page can be retransmitted. If occurs, the predetermined time is
Receiving is rejected except for re-sending from the page with the error, which is the other party with the error. Further, when the transmitter is retransmitting from the page in error, this is notified to the receiver by a procedure signal. The control circuit mainly performs the above control.

FIG. 2 shows a control flow chart of the control circuit 40 shown in FIG.

In FIG. 2, step S50 represents the beginning.

In step S52, the signal line 40a
The signal of the signal level "0" is output to and the CML is turned off.

In step S54, it is determined whether reception is selected. If reception is selected, the process proceeds to step S60, and if reception is not selected, the process proceeds to step S56.

In step S56, it is determined whether transmission is selected. If the transmission is selected, the process proceeds to step S114 (FIG. 5). If the transmission is not selected, the process proceeds to step S58 and other processing is performed.

In step S60, the signal line 40a
Then, the signal of the signal level "1" is output and the CML is turned on.

Step S62 represents a pre-procedure. Here, when the error-retransmitted information is received, it is notified that it has a function of continuously receiving the retransmission from the errored page of the embodiment.

In step S64, when an error occurs, the transmitter determines whether or not it has the resending function from the erroneous page of the present embodiment, and if it has the resending function from the erroneous page. Advances to step S70, and when the function of retransmitting from an error page is not included, the process advances to step S66.

Step S66 represents reception / recording of the image signal.

Step S68 represents a post-procedure.

In step S70, the telephone number, the communication number, and the communication start time notified from the transmitter are stored in the circuit 38 corresponding to the destination number.

In step S72, the image signal memory circuit 2
8 and the recording from the memory circuit 28 is shown.

In step S74, it is determined whether the reception of one page is completed. When the reception of one page is completed, the process proceeds to step S78, and when the reception of one page is not completed, the process proceeds to step S76.

In step S76, it is determined whether or not an error has occurred. If an error occurs, the process proceeds to step S90 (FIG. 3). If no error occurs, the process proceeds to step S72.

Step S78 represents an intermediate procedure. Here, recording of the page information being recorded continues.

In step S79, it is determined whether an error has occurred. If an error occurs, the process proceeds to step S90 (FIG. 3). If no error occurs, the process proceeds to step S80.

In step S80, it is determined whether or not there is a next page. If there is a next page, the process proceeds to step S72. If there is no next page, the process proceeds to step S8.
Go to 2.

Step S82 represents a post-procedure.
Here, the recording of the page information being recorded continues.

In step S84 (FIG. 3), the signal of signal level "0" is output to the signal line 40a to turn off the CML.

Step S86 represents recording all information of unrecorded pages.

In step S88, since communication is completed without any error, the telephone number, communication number, and communication start time notified from the transmitter registered in step S70 in correspondence with the destination number are transmitted. to erase.

In step S90, the signal line 40a
Then, the signal of the signal level "0" is output and the CML is turned off.

Step S92 represents recording the information up to the previous page having an error.

In step S94, the timer T1
It means that 5 minutes is set.

In step S96, it is determined whether or not there is an incoming call. If there is an incoming call, the process proceeds to step S98, and if there is no incoming call, the process proceeds to step S102.

In step S98, the signal line 40a
Then, a signal of signal level "1" is output and the CML is turned on.

Step S100 represents a pre-procedure. Here, when the error-retransmitted information is received, it is notified that the function of receiving the retransmitted information from the errored page of the present embodiment is activated.

In step S102, the timer T
It is judged whether or not 1 has timed out and timer T1
It is determined whether the time has passed. Timer T
If 1 is over, the process proceeds to step S104, and if it is not over, the process proceeds to step S96.

In step S104, there is error communication, but since there is no retransmission within a predetermined time, the fact that error communication has occurred is displayed, and in step S70, the destination number is sent to the circuit 38 as the destination number. Delete the telephone number, communication number, and communication start time notified from the correspondingly registered transmitter.

In step S106 (FIG. 4), the information registered in the circuit 38 is compared with the information just received, and it is judged whether or not the information is received from the other party who has the error communication. If affirmative, the process proceeds to step S108, and if negative, the process proceeds to step S112.

In step S108, it is determined whether or not there is a notification from the transmitter side that the error page has been retransmitted. If it is the retransmission from the error page, the process proceeds to step S110. If it is not the retransmission from the error page, step S112.
Proceed to.

In step S110, the information registered in the circuit 38 is input, and it is judged whether or not the communication number designated by the transmitter is the same as the communication number of the error information, and it is the same. In this case, step S72
(FIG. 2), and if different, proceeds to step S112.

In step S112, the fact that the reception is rejected is displayed. At this time, the telephone number of the other party is also displayed.

In step S114 (FIG. 5), the signal of signal level "1" is output to the signal line 40a to turn on the CML.

Step S116 represents a pre-procedure.

In step S118, when the receiver receives the error-retransmitted information, it is determined whether or not the receiver has the function of continuously receiving the retransmission information from the errored page in this embodiment. When step S120
If not, step S160 (FIG. 6)
Proceed to.

Step S120 represents the remaining pre-procedure. Here, the fact that it has a function of resending from an error page, and the telephone number and communication number of the transmitter are notified.

In step S122, the communication number, the communication start time, and the destination telephone number are stored in the circuit 36 in correspondence with the destination number of the called party.

In step S124, the image signal is stored in the memory circuit 14 and the information stored in the memory circuit 14 is transmitted.

In step S126, it is determined whether or not the transmission of one page is completed. If the transmission of one page is completed, the process proceeds to step S128, and if the transmission of one page is not completed, It proceeds to S124.

Step S128 represents an intermediate procedure.

In step S130, it is determined whether or not the process has ended in error. If the process has ended in error, the process proceeds to step S138. If not, the process proceeds to step S132.

In step S132, it is determined whether or not there is a next page, and if there is a next page, step S132.
If the process proceeds to step 124 and there is no next page, the process proceeds to step S134.

Step S134 represents a post-procedure.

In step S136, since the communication is completed without any error, the communication number, the communication start time and the destination telephone number registered in the circuit 36 in correspondence with the destination number are erased in step S122.

In step S138, the number of pages in error is stored. Then, step S158
In the image signal communication subsequent to (FIG. 6), retransmission is performed from this page.

In step S140, the signal line 40
A signal of signal level "0" is output to a and the CML is turned off.

Step S142 represents waiting for 1 minute.

In step S144, 3 is stored as the number of redials.

In step S146 (FIG. 6), the information of the telephone number of the communication partner having the error is input from the circuit 36 to make a call.

In step S148, it is determined whether or not the destination is busy. If the destination is busy, the process proceeds to step S150, the value of the number of redials is decremented by 1, and the destination is busy. If not, the process proceeds to step S156.

In step S152, it is determined whether or not the number of redials is 0, and if it is 0,
If not 0 in step S136, the process proceeds to step S154 to wait for 1 minute.

In step S156, the signal line 40
A signal of signal level "1" is output to a and the CML is turned on.

Step S158 represents a pre-procedure. Here, the fact that the communication is from the error page of the communication in error, and the telephone number and communication number of the transmitter are notified.

Step S160 represents the remaining pre-procedure.

Step S162 represents the reading and transmission of the image signal.

Step S164 represents a post-procedure.

(Second Embodiment) In the second embodiment, when an error occurs during communication, it is considered that the resending from the error page is performed until the end of the communication, without any error. However, the number of times of this retransmission may be limited.

(Third Embodiment) In the third embodiment, when an error ends in the middle, the receiver makes an error in the same destination (telephone number match) and the same communication number (communication number sent from the transmitter). It is the same as the retransmission before and after the error) and considered to allow the reception only when the notification of the error retransmission is given. However, the conditions for refusing the reception may be two of these or may be other conditions.

(Embodiment 4) In the above embodiment, when transmission is selected, when the partner receiver does not have the function of the above embodiment, when a communication error occurs, the error page is not retransmitted. I thought about that. However, even in this case, when a communication error occurs, the page may be retransmitted from the error page.

(Embodiment 5) When the receiver has means for storing the reception information, the reception information is stored in the storage means,
When the storage for one communication is completed, the recording operation is performed, and when the receiver receives a communication error from the transmitter, it is in the middle of the reception that is notified that the error page can be retransmitted. If an error occurs, even if the other party
When reception is permitted and one communication portion is stored in the storage means, recording is sequentially performed, and when retransmission is performed from an error page, the number of pages is continuously stored in the storage means. When the data is stored in the storage unit for one communication, recording is started. Then, if an error occurs in the middle, or if there is no retransmission from the error page within a predetermined time, it is processed as a communication error, and the information received up to now is output from the storage means.

Specific examples of the above control are shown in FIGS.
Only the different parts of the control of FIG. 6 are shown.

In FIG. 7, step S72 in FIG. 2 is changed to "storing image signal in memory circuit 28".

Further, in steps S78 and S82 of FIG. 2, both are set to control "no recording operation".

In step S86 of FIG. 3, "record all pages"
Change to.

Step S170 represents step S62 of FIG.

In step S172, it is determined whether or not the error communication has been retransmitted. If it is retransmission, the process proceeds to step S176, and if it is not retransmission,
The process proceeds to step S174 (FIG. 2, step S64).

A step S176 successively stores information in the memory circuit 28 corresponding to the designated communication destination transmission communication number.

Step S178 is the same as step S72 of FIG.
Is represented.

Step S180 represents step S90 of FIG.

In step S182, the communication is
The fact that an error has occurred is stored in the circuit 38. Further, control is performed so that the received information can be continuously stored in the memory circuit 28.

Step S184 is shown in FIG. 2, step S52.
Is represented.

Step S186 (FIG. 8) represents step S58 of FIG.

In step S188, the circuit 38 determines whether or not the erroneous communication remains. If there remains an error communication, step S190
If there is no error communication, go to step S.
Then, the process proceeds to 196 (step S54 in FIG. 2).

In step S190, it is determined whether or not 30 minutes or more have passed from the start of reception of the communication remaining after the error, and if 30 minutes or more have passed,
The process proceeds to step S192, and if not elapsed, the process proceeds to step S196.

In step S192, the information stored in the memory corresponding to the error communication is output to display the error communication.

Step S194 is step S104 in FIG.
Then, the information of the communication number is deleted from the circuit 38.

(Embodiment 6) In a facsimile machine capable of retransmitting from the first page when a communication error occurs,
During the pre-procedure, the other receiver is notified of that fact. Also, when the retransmission from the first page is being performed, the communication device notifies the receiver of that fact. Here, when the receiver has a unit for storing the reception information, the reception information is stored in the storage unit, and when the storage for one communication is completed, the recording operation is performed, and the receiver is set to the transmitter. When a communication error occurs, it is received that re-transmission from the first page is possible, and when an error occurs in the middle, the received information is deleted from the storage means.

A specific example of the above control is shown in FIG. 9 only for the part different from the control shown in FIGS.

In FIG. 9, first, steps S62 (FIG. 2), S64 (FIG. 2), S118 (FIG. 5) and S120.
(FIG. 5) and S158 (FIG. 6) are all changed to “retransmission from the first page” instead of retransmission from the error page.

Step S200 is shown in FIG. 7, step S18.
Represents 0.

In step S202, the fact that the communication has failed is stored in the circuit 38. On the other hand, the halfway received information stored in the memory circuit 28 is erased from the memory.

Step S204 is shown in FIG. 2, step S52.
Is represented.

Step S206 is step S172 in FIG.
Yes.

Step S208 represents storing the reception information in the memory circuit 28 corresponding to the designated communication number.

Step S210 is shown in FIG. 2, step S72.
It means to proceed to.

Further, the control in step S196 is deleted from step S186 in FIG. 8 (Embodiment 7) In the embodiment 6, in the case where the receiver transmits from the transmitter, the retransmission from the first page is performed. When an error occurs in the middle of receiving the notification that it is possible, only the first page of the received information is left in the storage unit, other pages are erased, and the first page is retransmitted within a predetermined time. If there is not, it is processed as a communication error and the information of the first page is output according to the communication result report and the like.

A specific example of this control is shown in FIG. 10 only for the part different from the control in FIG.

In FIG. 10, step S202 of FIG.
Is erased from the memory circuit 28 so that only the first page is left in the memory.

From step S186 to step S
Restore control of 196.

[0124]

As described above, according to the present invention,
When there is an error communication and the error page is retransmitted, it is possible for the receiver to continuously record without recording other received information between these two communications (reception). As a result, the user can properly distribute the received information. And the function of re-sending from the error page can be used more effectively than before.

[Brief description of drawings]

FIG. 1 is a block diagram of a facsimile apparatus of this embodiment.

FIG. 2 is a flowchart of a control circuit of this embodiment.

FIG. 3 is a flowchart of a control circuit of this embodiment.

FIG. 4 is a flowchart of a control circuit of this embodiment.

FIG. 5 is a flowchart of a control circuit of this embodiment.

FIG. 6 is a flowchart of a control circuit of this embodiment.

FIG. 7 is a flowchart of Example 5.

FIG. 8 is a flowchart of the fifth embodiment.

FIG. 9 is a flowchart of Example 6.

FIG. 10 is a flowchart of Example 7.

[Explanation of symbols]

2 NCU 4 Telephone 6 Hybrid circuit 8 V21 modulator 10 Reading circuit 12 Encoding circuit 14 Memory circuit 16 Decoding / transformation / encoding circuit 18 V27ter or V29 modulator 20 Adder circuit 22 V21 demodulator 24 V27ter or V29 demodulation Device 26 Decoding / encoding circuit 28 Memory circuit 30 Decoding circuit 32 Recording circuit 34 Automatic calling circuit 36 Recipient storage circuit for error resending 38 Recipient, communication number, communication start time storage circuit having an error during communication 40 control circuit

Claims (2)

(57) [Claims] 1. When a communication error occurs, in a facsimile device capable of re-sending from an erroneous page, when operating as a transmitter, the other receiver is notified that re-sending from an erroneous page is possible. In the pre-procedure, the notification means is used to notify the counterpart receiver to that effect. On the other hand, when operating as a receiver, the reception information is stored in the storage means by using the means for storing the reception information. Then, when the storage of the received information for one communication is completed,
If a recording operation is started using the recording means and an error occurs during the reception of the notification received from the transmitter, the communication is ended and the reception is permitted from the other party, When the information received from another party is stored in the storage means for one communication, the received information is sequentially recorded, and when the error page is retransmitted within a predetermined time, the number of pages is stored in the storage means. Is continuously stored, recording is started when reception information having no error is stored in the storage unit for one communication, and if there is no retransmission from the error page within the predetermined time, it is treated as a communication error. The facsimile device is characterized in that the information received up to now is output from the storage means. 2. A facsimile apparatus according to claim 1, further comprising means for, when retransmitting from an error page from a transmitting side to a receiving side, notifying the fact from a transmitter to a receiver.