JPH06237355A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To reduce the communication time and to save the line utility charge and to improve the operability by using memory transmission of the facsimile equipment efficiently. CONSTITUTION:A memory residual capacity of its own equipment is reported to a terminal equipment of a sender station together with a communication control procedure signal (NSP) at the time of reception. When the reception station informs of substitute reception of a transmission original at the time of transmission, the facsimile equipment stores memory residual data sent with the communication control procedure signal (steps 101, 102) and compares the data quantity of picture information sent by itself with the memory residual data and when the data quantity exceeds the memory residual capacity of the reception station terminal equipment (step 103), the facsimile equipment releases immediately a line (step 104). Furthermore, in the case of other than substitute reception, the usual transmission is controlled for execution.

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 suitable for effectively utilizing a memory transmission function.

[0002]

2. Description of the Related Art Conventionally, in a memory storage communication type facsimile apparatus, if the memory capacity of the receiving side is smaller than the image information storage amount of the transmitting side, an error occurs during the communication and the communication ends. As measures against this, for example, JP-A-2-21697
As described in Japanese Unexamined Patent Publication No. 2 (1994), the receiving side adds the amount of data that can be stored in the memory to a communication control procedure signal (for example, NSF) and transmits it, and the transmitting side sends image information according to the memory capacity of the receiving side. A method of sending is proposed. In this method, the receivable memory capacity is checked in page units, so if the receiving memory capacity is insufficient when sending a page in the middle, the process ends without sending, and the call is reissued after a certain period of time. Resending from the page in the middle.

[0003]

In the above prior art, the receiving side declares that confidential reception / relay reception is possible in the NSF when the remaining memory capacity is equal to or more than the predetermined threshold value. If is sent, it cannot be stored and a communication error occurs. Also, if communication is re-established due to a reception error and the remaining memory capacity is the same as before, the same procedure is executed from the beginning again and a communication error occurs, resulting in a waste of communication time and the line usage fee. Further, in the method described in Japanese Patent Laid-Open No. 2-216972, it is difficult for the receiving side to recognize that the first transmission and the second transmission are obtained by dividing the same document. Also, no consideration is given to the case where the transmission data amount of the transmission document and the receivable capacity are almost the same and the transmission data amount is slightly large, and the transmission of the information is possible even with the transmission data of the receivable capacity. . An object of the present invention is to improve such problems and to control whether to transmit image information or stop transmission according to the remaining memory capacity of the other party to efficiently use memory transmission. An object of the present invention is to provide a facsimile apparatus suitable for shortening the time and saving the line usage fee. Another object of the present invention is to change the data amount of a document according to the remaining memory capacity on the receiving station side so that the document can be transmitted.
Further, when the remaining memory capacity on the receiving station side is insufficient, it is an object to make it possible to change the transmission setting of the transmission standby document by operation.

[0004]

In order to achieve the above object, the facsimile apparatus of the present invention comprises a communication control means (see FIG. 2).
Communication control section 7), a memory for storing image information (image memory 4), and a means (reception station memory information management section 10) for storing the memory remaining amount data sent together with the communication control procedure signal. By the system control unit 11,
At the time of reception, the communication control procedure signal (N
(SF) so that the terminal on the transmitting station side is notified, and at the time of transmission, when the receiving station side is notified of the proxy reception of the transmitted document, the memory remaining amount data sent together with the communication control procedure signal, and the own device. Compared with the data amount of the image information transmitted by, if the data amount exceeds the remaining memory amount of the receiving station side terminal, the image information is transmitted according to the remaining memory amount of the receiving station side terminal. There is. That is, the image information reduced by the operation is transmitted without causing a transmission failure or a communication error even when the remaining memory capacity is insufficient. Further, the transmitting station side terminal stores the remaining memory capacity of the receiving station side terminal, and outputs the image information (up to which part can be transmitted) which can be transmitted from itself by the output means (plotter 2, operation display unit 8). Is characterized by visually notifying the user. Also, compare the remaining memory capacity of the receiving station side terminal at the time of re-transmission with the previous remaining memory capacity, and if the remaining memory capacity of the receiving station side is increasing, send the original according to the increased memory size. It is characterized by changing and sending. Also, if the original cannot be sent because the remaining memory on the receiving station side is insufficient, select one of the following: operation to reduce the remaining memory on the receiving station side before transmission, send by normal procedure, or delete. Is characterized by.

[0005]

In the present invention, only when the memory transmission is performed, the line is released based on the memory remaining amount data previously added to the NSF if the memory remaining amount is insufficient. As a result, it is possible to prevent waste of communication time and line usage fee due to a communication error. Furthermore, at the time of re-transmission, it is possible to compare the remaining memory amounts obtained this time and the previous time, and change the data amount of the original document according to the result and then transmit, so that it is possible to transmit only a part of the original document. . Therefore, it is possible to efficiently use memory transmission and increase the possibility of normal transmission.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a block diagram of a facsimile apparatus according to an embodiment of the present invention. In FIG. 2, a scanner 1 reads out image information of a predetermined resolution from a document image, and a plotter 2 records the image information on recording paper. The encoding / decoding unit 3 also encodes image information to be transmitted and decodes the received image information. Further, the image storage memory 4 temporarily stores the image information to be transmitted in the case of the storage transmission, and stores the image information in the substitute reception. With this, it is possible to refer to the current remaining memory capacity. Further, the network control device 5 performs a predetermined calling operation and receiving operation by supplementing the line, sending a selection signal which is a destination telephone number, detecting an incoming call, and the like. Further, the modem 6 modulates and demodulates the image information and transmits it, and also transmits various procedure signals in the transmission control procedure. Further, the communication control unit 7 controls the network control unit 5 and the modem 6 to realize facsimile transmission by a predetermined transmission control procedure based on the G3 standard of CCITT recommendation. The operation display unit 8 also displays operation guidance and the like, and causes the facsimile apparatus to execute various operations for executing predetermined transmission / reception processing in accordance with the guidance. Also,
The registration / transmission management information storage unit 9 is a RAM area for storing registration information and job files. Further, when the file (image information) stored in the image memory 4 is transmitted, the receiving station memory information management unit 10 stores and stores the memory remaining amount information of the receiving station in association with the file. The system control unit 11 is a microcomputer including a CPU, a ROM, a RAM, and the like, and controls each of the above units to realize a predetermined operation of the facsimile apparatus. The system bus 13 is a signal line for exchanging data between the respective units.

Next, the facsimile communication operation of this embodiment will be described. FIG. 1 is a flow chart showing a transmission process at the time of making a first call of a facsimile apparatus according to an embodiment of the present invention, and FIG. 3 is a sequence diagram showing a facsimile communication procedure according to an embodiment of the present invention. In this embodiment, it is assumed that the device on the transmitting station side always performs memory transmission. Also, the device on the receiving station side notifies N of the machine function.
It is assumed that a bit declaring that the function of notifying the remaining memory amount is provided on the SF in advance, and the remaining memory amount information is provided to the transmitting station side. First, the facsimile device B of the receiving station, when receiving the CED from the facsimile device A of the transmitting station, declares “with the memory remaining amount notification function” to the NSF and maps the memory remaining amount in byte unit to the NSF. To do. When the facsimile device A finds "with memory remaining amount notification function" during NSF analysis (step 101), it reads the memory remaining amount data mapped in the same signal and stores the receiving station memory information of its own station. Part 1
It is stored in 0 (step 102) and compared with the size of image information to be transmitted (step 103). As a result, if the size of the image information to be transmitted is larger, DCN is transmitted and the line is released (step 104). On the contrary, when the remaining memory capacity of the receiving station is larger, the processing is continued in the normal transmission procedure. That is, the setup data (CCITT
(Specification), the modem training signal (TCF) is sent, and the modem training success (CFR) is received from the facsimile apparatus B, the image information in the image memory 4 is sent, and PPS_EOM is sent to complete the normal reception ( MC
(F / PPR) is notified, DCN is sent to FAX
/ Switch TEL. The facsimile machine A is
In the case of NO in step 103, a report visually notifying the user how much image information can be transmitted with the remaining memory of the receiving station by the plotter 2 and the display of the operation display unit 8 shown in FIG. Is output. At this time, in addition to the method of outputting the information that can be transmitted when the normal transmission is performed, for example, the document is reduced or the linear density is converted (8 lines / mm → 4 lines / m
It is also possible to output the information that can be sent when m). With this report, the user can obtain a received document image at the receiving station when the transmitted document is scraped to a size equivalent to the memory remaining amount of the receiving station. It is also conceivable that the user can select the transmission method of the document in the transmission standby state. For example, even if a manuscript that has been deleted to the same extent as the remaining memory of the receiving station does not interfere with the meaning of information transmission, resend the contents output from the report. When the resend is selected in this manner, the facsimile device A calls the facsimile device B again to acquire the remaining memory amount information again.

Next, the facsimile communication operation in the case of a re-call will be described. FIG. 4 is a flow chart showing the processing on the transmitting side when a call is reissued in one embodiment of the present invention. In this embodiment, the NSF from the facsimile of the receiving station is analyzed even when the call is reissued (step 401) and the remaining memory amount information is acquired. Next, the memory remaining amount information stored in the receiving station memory information storage unit 10 of the own station at the time of the previous transmission is read (step 402), and the memory remaining amount information obtained by the current transmission is similarly stored. (Step 40
3). Then, they are compared (step 404), 2
If the remaining memory capacity for the second time exceeds that for the first time, the size of the transmission original is transmitted according to the size of the remaining memory capacity obtained for the second time (step 405). On the contrary, if it is found that the remaining memory capacity of the receiving station has decreased in the second communication (step 404), DCN is sent again (step 406), the above-mentioned report is output, and the operation It waits for instructions and goes into a standby state.

If the original cannot be sent due to insufficient memory remaining on the receiving station side, the operation is automatically performed to reduce the remaining memory on the receiving station side to send, send normally, or delete. It is also conceivable to set in advance so as to selectively select and process. When this method is adopted, when the call is reissued, the NSF from the receiving station facsimile is analyzed in the same manner as above to acquire the remaining memory amount information,
Compare with the size of the image information to be sent. As a result, if the remaining memory capacity is insufficient, it is further checked whether or not the transmission method has been selected in the operation, and the originals are reduced according to the selection and transmitted, or normal communication (transmission with complete original) )
Specify to do. If you want to reduce the number of manuscripts and send, if the current memory capacity is less than the last time,
Is sent to release the line, and conversely, if the current memory remaining amount is larger than the previous memory remaining amount (memory remaining amount stored in the receiving station memory information storage unit 10), the reduced document is transmitted. Further, when performing normal transmission, if the remaining memory capacity this time is less than the amount of image data to be transmitted, DCN is sent to release the line, and the remaining memory capacity this time satisfies the amount of image data to be transmitted. Only send when.

[0010]

According to the present invention, the possibility that a document can be normally transmitted becomes higher by determining whether or not the transmitting station can receive data based on the remaining memory capacity of the receiving station. Also, even if a reception error occurs due to insufficient memory capacity, transmission will not be performed if the memory capacity on the receiving station side exceeds the number of image information data of the transmitted document, so time is saved and the line is used. It is possible to save money. Also, by reducing the number of originals and transmitting according to the remaining memory capacity on the receiving station side, if there is no problem even if some images are missing from the viewpoint of information transmission, the content of the image information will be Is flexible. Furthermore, if the remaining memory capacity on the receiving station side does not change or decreases even after re-calling, more flexible response is possible by allowing the user to change the transmission settings of the document waiting to be transmitted. Operability is improved.

[Brief description of drawings]

FIG. 1 is a flowchart showing a transmission process at the time of making a first call of a facsimile apparatus according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a facsimile apparatus according to an embodiment of the present invention.

FIG. 3 is a sequence diagram showing a fax communication procedure in one embodiment of the present invention.

FIG. 4 is a flow chart showing processing on the transmitting side when a call is reissued according to an embodiment of the present invention.

[Explanation of symbols]

 1 Scanner 2 Plotter 3 Encoding / Decoding Section 4 Image Memory 5 Network Control Device 6 Modem 7 Communication Control Section 8 Operation Display Section 9 Registration / Transmission Management Information Storage Section 10 Receiving Station Memory Information Storage Section 11 System Control Section (CPU ROM RAM ) 13 system bus

Claims (4)

[Claims] 1. A facsimile apparatus comprising a communication control means, a memory for accumulating image information, and a means for storing the remaining memory amount data sent together with a communication control procedure signal, in a facsimile device at the time of reception. A means for controlling the remaining memory capacity to be notified to the terminal on the transmitting station side together with the communication control procedure signal, and a message to be sent together with the communication control procedure signal when the receiving station side is notified of the reception of the transmission original at the time of transmission. The memory remaining amount data is compared with the data amount of the image information transmitted by the own device, and if the data amount exceeds the memory remaining amount of the receiving station terminal, the image reduced according to the memory remaining amount is displayed. A facsimile apparatus comprising: a means for controlling to transmit information. 2. A facsimile apparatus equipped with a communication control means, a memory for accumulating image information, and a means for storing remaining memory amount data sent together with a communication control procedure signal, in a facsimile device at the time of reception. Based on the means for controlling the remaining memory capacity to be notified to the terminal on the transmitting station side together with the communication control procedure signal, and on the basis of the remaining memory capacity data sent together with the communication control procedure signal from the receiving station side during transmission. And a unit that outputs the amount of data that can be transmitted in the image information transmitted by the facsimile machine. 3. A facsimile apparatus comprising a communication control means, a memory for accumulating image information, and a means for storing the remaining memory amount data sent together with a communication control procedure signal, in a facsimile device at the time of reception. A means for controlling the remaining memory capacity to be notified to the terminal on the transmitting station side together with the communication control procedure signal, and a message to be sent together with the communication control procedure signal when the receiving station side is notified of proxy reception of the transmitted document at the time of retransmission. The remaining memory data is compared with the previously notified memory remaining data, and if the currently notified memory remaining is large, the image information changed according to the remaining memory is transmitted. A facsimile apparatus comprising: a control unit. 4. A facsimile apparatus comprising a communication control means, a memory for accumulating image information, and a means for storing the remaining memory amount data sent together with a communication control procedure signal, in a facsimile device at the time of reception. A means for controlling so as to notify the terminal on the transmitting station side of the remaining memory amount together with the communication control procedure signal, and at the time of transmission, from the remaining memory amount data sent together with the communication control procedure signal from the receiving station side, the own device transmits If the memory remaining on the receiving station side for the image information is insufficient, reduce the image information according to the remaining memory and transmit,
A facsimile apparatus, comprising: a means for controlling to select either transmission or deletion in a normal procedure.