JPH04175056A - Picture information transmission/reception system - Google Patents

Abstract

PURPOSE:To attain memory reception of a picture information data from an important opposite party by deleting an original file with less priority from a picture information storage memory when the original file with less priority is in existence in the storage memory. CONSTITUTION:When a picture information storage memory is occupied fully and the further storage resulting from the reception is disable in the case of memory reception, the priority of the receiving original file and that of the original files stored already are compared. As the result of comparison, when original files with less priority than that of the priority of the original file going to be received are stored in the memory, the original files with less priority are deleted from the picture information storage memory.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image information transmitting/receiving system such as a facsimile that transmits and receives image information data of a document.

[Conventional technology]

2. Description of the Related Art Conventionally, facsimile machines having functions of instant transmission and instant reception, and facsimile machines having functions of memory transmission and memory reception are known.

A facsimile machine that has the function of instant transmission and instant reception,
When the image information data of a document to be sent is read, it is immediately sent to the recipient, and when the image information data of the document is received from the sending side, it can be immediately printed out. There is.

Furthermore, in a facsimile machine that has memory transmission and memory reception functions, when attempting to perform memory transmission, the image information data for transmission is temporarily stored in the image information storage memory, and then transmission to the destination is started, and At the time of reception, it is possible to once store the received image information data in the image information storage memory and then start printing out the image information data.

[Problem to be solved by the invention]

By the way, in a facsimile machine having memory transmission and memory reception functions, the image information storage memory may become full as a result of sequentially storing image information data sent from the sending side during memory reception in the image information storage memory. In such a case, conventionally, there has been a problem that image information data subsequently sent from the transmitting side cannot be received.

In particular, even when image information data of a document is sent from an important party, there is a drawback that it is impossible to receive the image information data.

The present invention provides image information transmission and reception that allows image information data to be received depending on the destination even if the image information storage memory is full when attempting to receive image information data from the sending side. The purpose is to improve the system.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a priority determining means for determining a priority for a document file to be sent or received from a memory according to the destination, and a device for determining a priority when the image information storage memory is full when receiving the memory. When it is impossible to receive any more, the priority determined for the original file to be received in memory and the priority set for the original file already stored in the image information storage memory. As a result of the comparison, if there is a manuscript file with a lower priority than the priority of the manuscript file to be received in the memory, the manuscript file with the lower priority is transferred from the image information storage memory. It is characterized by comprising an erasing means for erasing.

The invention further includes retransmission requesting means for requesting retransmission to the sender of the erased original file when the predetermined original file erased from the image information storage memory by the erasing means is one that has been received by the memory. ing.

[Effect]

In the image information transmission/reception system configured as described above, a priority is determined for the original file to be sent or received from the memory according to the destination, and when the image information storage memory is full and no more data is received at the time of memory reception, When reception is impossible, the priority determined for the original file to be received in the memory is compared with the priority set for the original file already stored in the image information storage memory. As a result of the comparison, if there is a manuscript file with a lower priority than the priority of the manuscript file to be received in the memory, this is deleted from the image information storage memory and a new manuscript file is stored. be able to.

In addition, if the original file deleted from the image information storage memory is the one that was received in the memory, a retransmission request is made to the sender of the deleted original file, and if the original file is sent again from this sender. , the deleted original file can be received again.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a block diagram of an embodiment of an image information transmission/reception system according to the present invention, and FIG. 1 shows a facsimile as an example of the image information transmission/reception system.

Referring to FIG. 1, this facsimile includes a processor 1 that controls the whole, a ROM 2 in which a control program for the processor 1 is stored, a RAM 3 used as a working area for the processor 1, a telephone 8115,
Network control unit 1 functioning as an interface with line 19
4, a modem 13 that modulates and demodulates transmitted and received data, a scanner 9 that reads image information of a document for transmission, a plotter 1o that outputs the received image information on paper, and an operation section 11 that performs predetermined operations. , a clock unit 12 that functions as a timer and clock within the system, a scaling unit 16 that matches the paper size with the other party's device during transmission and reception, and a compression process (encoding process) for image information data for transmission. ),
There is also a compression/decompression unit 5 that performs decompression processing (restoration processing) on the received image information data (compressed image information data), and a line buffer in which one line of image information data is stored when outputting to a plotter 10 or the like. 6, a DMA controller 7 for controlling high-speed data transfer, that is, DMA transfer, and a first-in, first-out buffer provided to absorb the difference between the data rate of the line 19 and the data rate in the system, namely It has a FIFO buffer 8 and an image information storage memory section 4 in which image information data transmitted to the memory or image information data received by the memory is stored during memory transmission/reception. .

The operation unit 11 includes an operation board 17 and a display unit 18 such as a liquid crystal display. The operation board 17 allows you to enter transmission conditions and the telephone number of the other party, and display the operating status and the called terminal on the display unit 18. It is possible to display the identification number C3I, etc.

Further, in this embodiment, the image information storage memory section 4 is composed of a file management area FAR and an image information area SAF, as shown in FIG.

File management area FAR is sent to memory once.

Alternatively, it is an area for managing image information data in one memory reception as a manuscript file, and includes an alternate reception management area MA1 and a memory transmission management area MA2.
It is divided into a document file area MA3, and a priority registration area MA4. The image information area SAF is an area where image information data is actually accumulated, and is divided into several blocks.
In the example shown in the figure, 256 blocks with block numbers “1” to “256”
The state in which the image is divided into blocks is shown.

FIG. 3 is a diagram showing an example of the substitute reception management area MA1, and the substitute reception management area MA1 contains information on manuscript files that have already been received and stored in the image information area SAF, that is, the manuscript file identification number ID. and the priority of the original file <(first priority) PR are stored for each original file.

Further, FIG. 4 is a diagram showing an example of the memory transmission management area MA2, and the memory transmission management area MA2 contains information on the document file stored in the image information area SAF to be transmitted in the memory, that is, A manuscript file identification number ID, a calling time T1, a telephone number location of a called party, a communication result R3, and a priority PR are stored for each manuscript file.

Further, FIG. 5 is a diagram showing an example of the document file area M A3. This manuscript file area MA3 contains information regarding each manuscript file stored in the image information area SAF, that is, the storage time T2 as file information.
, total number of pages PAGE, total capacity VOL, and linear density L
DT, paper size 5IZE, compression mode MD, and used block numbers N1 to Nl in the image information area SAF are stored for each manuscript file in correspondence with the manuscript file identification number ID, and the file information of this area MA3 teeth,
It is designed to be indexed by the document file identification number ID in areas MA1 to MA2 in FIGS. 3 and 4.

Further, FIG. 6 is a diagram showing an example of the priority registration area M A 4. Priority registration area MA4
, a predetermined sending terminal identification number (recipient's telephone number) T
A priority PR is registered in advance for the SI, and when transmitting the image information data of the original to the memory, the processor 1 selects the sending terminal identification number that matches the telephone number of the called party. TSI is detected from priority registration area MA4, and the matching transmitting terminal identification number T
The priority PR registered corresponding to the SI is set as the priority of the document file to be sent to the memory.

Also, when receiving the image information data of the original in memory,
When the transmitting terminal identification signal TSI is sent from the transmitting side, the processor 1 stores the transmitting terminal identification number TSI that matches the transmitting terminal identification signal TSI in the priority registration area M.
The priority PR detected from A4 and registered corresponding to the matched sending terminal identification number TSI is set as the priority of the document file to be received in the memory. In addition, priority registration area M in Figure 6
In A4, the smaller the priority PR, the higher the priority, and the lowest priority is 1 for the sending terminal identification number that does not correspond to the registered sending terminal identification number TSI. For example, 10'' is assigned.

Further, when the processor 1 attempts to perform memory reception, the image information storage memory section 4. In other words, the image information area S
If the AP is full and no further reception is possible, determine the priority PR of the document file that you are about to receive in memory as described above, and the currently determined priority PR and image information area Priority PR of various manuscript files already stored in SAF, that is, proxy reception management area M A 1. Memory transmission management area M A
The priority PR of each manuscript file set in Z is compared, and as a result, a manuscript file with a priority PR lower than the priority PR of the file to be received in memory is detected. Sometimes, the image information data of this original file is deleted from the image information area SAF.

Furthermore, if a document file with a low priority PR is a received file and the image information data of this received file is deleted from the image information area SAF, the processor 1 notifies the sender of this file to that effect. , control such as requesting retransmission is also performed.

Next, processing operations in such a configuration will be explained.

FIG. 7 is a diagram showing an example of a transmission/reception procedure performed when the image information transmission/reception system shown in FIG. 1 is provided on the transmitting side and the receiving side, respectively. Referring to FIG. 7, when dialing is performed on the transmitting side and a call is made, the receiving side as the called station sends a called terminal identification signal CHD to the transmitting side, and the receiving side is a facsimile terminal. The sender is then notified of the non-standard function identification signal NSF (
S).

NSF (C), called terminal identification number CSR, and digital identification signal DIS are sent to the transmitting side to notify the receiving side of the reception capability of the receiving side. After that, the transmitting side determines the transmission mode and sends the non-standard function setting signal NSS (S), the transmitting terminal identification signal TSI, and the non-standard function setting signal NSS (C).
, as a digital command signal DO3, and further sends a training signal TRAIN, ) training check signal TCP to the receiving side. Upon receiving this, the receiving side sets a communication mode and sends a reception preparation confirmation signal CFR to the transmitting side.

In this way, when the receiving side sends the reception preparation confirmation signal CFR, the sending side sends the training signal RETR.
Following AIN, image information data PIX of the original is sent to the receiving side, and zero image information data PI is received on the receiving side.
When the transmission of X is finished, the transmitting side sends a procedure end signal EO.
P is sent to the receiving side, and the receiving side sends a message confirmation signal M
Upon receiving the CF, the transmitting side sends a disconnection command signal DCN to the receiving side, thereby disconnecting the line and terminating the call.

In the above procedure, to explain in detail the operation when memory reception is performed on the receiving side, if the transmitting terminal identification signal TSI is sent from the transmitting side while the image information area SAF of the image information storage memory section 4 on the receiving side is not full. , on the receiving side, the priority corresponding to the sending terminal identification number that matches this,
In other words, priority PR is 1 priority registered engineer rear MA4
Image information data PI to be extracted from and received thereafter
X, that is, set this priority PR in the file management area FAR that manages the received file.0 Next, the image information data (compressed data) P is sent from the sending side.
When IX is sent via the line 19, on the receiving side, it is taken in by the network control unit 14, demodulated by the modem 13,
The image information is stored in the image information area SAF of the image information storage memory section 4 via the FIFO buffer 8 as a document file. After that, when the plotter 10 is ready for use, the image information data stored in the image information storage memory section 4 is read out and the DM
The A controller 7 transfers the data to the compression/expansion section 5 at high speed, where it is decompressed and restored to the original image information data, which is then output to the plotter 10 via the line buffer 6. In this way, the plotter 10 can print out.

By the way, on the receiving side, when receiving the image information data PIX into the memory, the image information area SAF of the image information storage memory unit 4 is
There are cases where it is full and it becomes impossible to receive any more image information data. However, in this embodiment, by performing the processing shown in FIG.
It is possible to receive new image information data even when the memory is full. In the example shown in FIG. 8, a bit switch (not shown) is defined in, for example, RAMB of the facsimile system on the receiving side, and by turning on this bit switch in advance by the user's operation,
Even when the image information area SAP is full, it is possible to receive new image information data.

That is, on the receiving side, when receiving memory, the processor 1 first checks whether the bit switch is on (step S1). If the bit switch is on, the processor 1 checks whether the bit switch is on or not. Terminal identification signal TS
When I is sent, receive it step S2),
As described above, based on the received transmitting terminal identification signal TSI, the priority registration area MA4 is referred to to determine the priority PR of the image information data PIX to be received thereafter, that is, the received file (step S3
).

Next, the priority PR determined in step S3 and the file management area FAR, that is, the proxy reception management area MA1. 1 priority P of each original file already set in memory transmission management area M A 2
Among the priority PRs, it is searched whether there is a priority PR that is lower than the priority PR of the manuscript file that is about to be received in the memory (step S4). is detected, the image information data of this original file is deleted from the image information area SAP (step S5). As a result, an empty space is created in the image information area SAF, and the image information data P sent from the sending side is deleted.
IX can be received and newly stored in the image information area SAF as a received file (step S6).
In particular, when it is desired to receive image information data from an important recipient in memory, the user on the receiving side can receive this image information data in memory simply by turning on a bit switch.

At this time, the previously accumulated image information data of the predetermined manuscript file is stored in the image information area S in step S5.
If the document file is deleted from the AF and has been received in the memory, the contents cannot be printed out and checked. In order to avoid such a situation, in this embodiment, step S6
After storing the new received file in the image information area SAF in step S5, the source of the original document file erased in step S5 is determined using the sending terminal identification signal TSI stored at the time of receiving this original file, and the source is identified as the sending source. The recipient will be notified that the previously sent manuscript file has been deleted, and will also send a retransmission request letter as shown in Figure 9.
Step S7).

As a result, the receiving side can have the sender resend the forcibly deleted manuscript file.

On the other hand, if the bit switch is off in step S1 of FIG. 8, or if a document file with a lower priority than the document file to be received in the memory is not found in step S4, New manuscript files cannot be received.

Therefore, this embodiment is particularly useful when a document file from an important high-priority destination is reliably received in the memory, and even when the image information area SAF is full, the high-priority A document file from a high-priority destination can be received in the memory at the expense of a document file from a destination with a lower priority.

The priority registration area MA4 in FIG. 6 can be freely created by the user, and in this case, the user can pre-assign a high priority to the transmitting terminal identification number TSI of an important destination. In addition, when the importance of the other party changes, each sending terminal identification number TS
It is possible to change the priority for r, or to additionally register a new transmitting terminal identification number TSI and assign it a predetermined priority of 1.

In addition, in the example of FIG. 6, the lowest priority is pre-assigned to the transmitting terminal identification number that does not correspond to the registered transmitting terminal identification number TSI; It is also possible for the user to directly input and give a desired one priority without allocating it.

〔Effect of the invention〕

As explained above, according to the present invention, priority is determined for document files to be transmitted or received in memory according to the destination, and when the image information storage memory is full at the time of memory reception, When reception is impossible, the priority determined for the original file to be received in the memory is compared with the priority set for the original file already stored in the image information storage memory. , compare results, try to receive memory! If there is an original file with a lower priority than the original file, this original file is deleted from the image information storage memory, so if the image information storage memory is full, It is also possible to receive important image information data from the other party.

Additionally, if a specified original file that has been deleted from the image information storage memory is the one that was received in the memory, a retransmission request is made to the sender of the deleted original file. When a transmission is sent again from the transmission source, the original file from the transmission source can be received again and printed out even if it has been deleted.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of an image information transmitting and receiving system according to the present invention, FIG. 2 is a diagram showing an example of the configuration of an image information storage memory section, and FIGS. 3, 4, and 5. Figure 6 shows the proxy reception management area, memory transmission management area,
FIG. 7 is a diagram showing an example of a manuscript file area and a priority registration area, respectively. FIG. 7 is a diagram showing an example of a transmission/reception procedure performed when the image information transmission/reception system shown in FIG. 1 is provided on the transmitting side and the receiving side, respectively. , FIG. 8 is a flowchart showing the memory reception processing operation when the image information area is full, and FIG. 9 is a diagram showing an example of a retransmission request letter. 1...Processor, 2...ROM, 3...RAM
, 4... Image information storage memory section, 5... Compression/expansion section,
6... Line buffer, 7... DMA controller, 8... FIFO/(・yfa, 9... Scanner,
DESCRIPTION OF SYMBOLS 10... Plotter, 11... Operating unit, 12... Timing unit, 13... Modem, 14... Network control unit, 15...
...telephone, 16...variable magnification section, 19...line, FAR...file management area, MAl...alternative reception management area, MA2...memory transmission management area, MA3...manuscript file Area, M A 4...Priority registration area, SAF・
...Picture information area, PR...Priority, TSI...Sending terminal identification number Patent applicant Rico Co., Ltd. - Figure 8 Figure 9

Claims (1)

[Scope of Claims] 1) Priority determining means for determining a priority for a document file to be sent or received from a memory according to the destination, and a means for determining a priority for a document file to be transmitted or received from a memory, and a means for determining a priority when the image information storage memory is full at the time of memory reception. , the priority determined for the original file to be received in the memory is compared with the priority set for the original file already stored in the image information storage memory. If there is a manuscript file that has a lower priority than the priority of the manuscript file to be received in memory as a result of the comparison,
An image information transmitting/receiving system comprising: erasing means for erasing a low-priority document file from the image information storage memory. 2) In the image information transmission/reception system according to claim 1, when the predetermined original file erased from the image information storage memory by the erasing means is one that has been received by the memory, the transmission source of the erased original file is An image information transmitting and receiving system, further comprising retransmission requesting means for requesting retransmission.