JPH05344319A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To reduce the possibility of the generation of a memory full which constrains a storing operation in a picture information storage memory, and to transmit picture information according to the line density and recording width capability of the destination of transmission decided by a communication procedure. CONSTITUTION:A resolution and original size decided by the communication procedure with the other party facsimile, set value stored in a picture information management file 17 at the time of storage, and the actually stored original size and resolution are compared, and picture data obtained by converting the picture information stored in a picture information storage memory 14 by a transmission original size/resolution conversion processing part 21 so that the most appropriate resolution and original size can be obtained at the time of transmission are transmitted to a reception terminal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile apparatus having storage means for temporarily accumulating and storing image information.

[0002]

2. Description of the Related Art FIG. 13 is a schematic block diagram showing a conventional facsimile machine disclosed in Japanese Patent Laid-Open No. 62-227268. In the figure, 1 is a photoelectric conversion processing unit for converting a document into read image information, 2 is an image information storage memory for accumulating and storing the image information read by the photoelectric conversion processing unit 1, and 3 is a display and input for urging operation. An operation unit equipped with a switch for receiving, 4 is a communication control unit that controls communication procedures, 5 is a line control unit that controls outgoing and incoming calls to a communication line, and 6 is a partner device such as resolution obtained from communication history A partner device capability information file, which stores the capability of, is a control unit that controls the entire facsimile device and that stores the image information obtained by the photoelectric conversion processing unit 1 in the image information storage memory 2.

Next, the operation will be described. First, when the number of originals, the linear density, and the destination information are input from the operation unit 3 and designated, the control unit 7 is required to store the originals based on these information and the partner device capability information read from the partner device capability information file 6. Then, the calculated memory capacity is compared with the free capacity of the image information storage memory 2. As a result of the comparison, when the capacity of the image information storage memory 2 is larger than the calculated memory capacity required for document storage, the image information is stored in the image information storage memory 2 at the designated linear density. vice versa,
When the calculated memory capacity required for document storage is large, the image information is stored with a line density that is coarser than the specified line density. Then, when the storage and storage are completed, the image information is transmitted to the partner device via the communication control unit 4 and the line control unit 5.

[0004]

The conventional facsimile machine is constructed as described above, and calculates the memory capacity required for document storage from the resolution information obtained from the communication history information and the number of documents, and When the remaining amount of the information storage memory 2 is smaller than the above calculation result, the line information is stored in the image information storage memory 2 at a coarser line density than the specified line density, so the capability of the partner terminal is changed. I can't handle it. Further, when the facsimile device has a function of sequentially broadcasting image information stored in the image information storage memory 2 and sequentially transmitted to a plurality of facsimile terminals, it is necessary to select the line densities of the plurality of terminals in the communication history. Therefore, there is a high possibility that data will be read at a linear density almost equal to the specified linear density, the required memory capacity will be larger than the free space in the image information storage memory 2, and the risk of memory full being unavoidable. was there.

The present invention has been made in order to solve the above-mentioned problems, and reduces the possibility that a memory full that restricts the operation accompanied by accumulation in the image information storage memory will occur and is determined by the communication procedure. It is an object of the present invention to provide a facsimile apparatus capable of transmitting image information according to the linear density and recording width capability of the transmission destination, that is, the capability of resolution and document size.

[0006]

SUMMARY OF THE INVENTION A facsimile apparatus according to the present invention comprises a document reading unit for reading a document and converting it into image information, an image information storage memory for temporarily storing and storing the read image information, and image information. Input document size and resolution conversion processing unit that converts the resolution and paper size of image information when storing and storing the image information, the capacity to newly store and store the image information in the image information storage memory, and the original document to be read. If the capacity that can be stored and stored is small, compare the size and resolution with the original size and resolution of the image information to be stored and stored so that the image size is less than the set resolution and original size. A means for accumulating and storing the image information in the image information storage memory after resolution conversion, and a means for storing the image information data between the receiving terminal through the communication line. And a communication means for receiving.

Then, a transmission document size and resolution conversion processing unit for converting the resolution and document size of the image information when transmitting the image information stored and stored in the image information storage memory, and a document size and resolution conversion process during storage. Performs comparison by comparing the set values stored and stored, the resolution and original size when the original scanning operation was set, with the resolution and original size determined by the communication procedure at the time of transmission, and seems to be optimal for transmission. A resolution document size selecting means for selecting a resolution and a document size to be selected, and an image information complement processing unit, so that the image information stored in the image information storage memory has the selected resolution and document size. After the resolution conversion process, the image information is complemented and the image data is transmitted to the receiving terminal through the communication line.

Further, a recording document size and resolution conversion processing unit for converting the document size and resolution when recording the received image information, the document size and resolution set at the time of reading, and the document size actually stored. , Resolution and
Notify the receiving terminal by the communication procedure at the time of transmission, and
A means for sending the image information stored in the image information storage memory to the receiving terminal as it is, and a communication procedure for determining the document size and resolution at the time of operation setting and the document size and resolution stored in the image information storage memory from the sending end. And a means for storing the communicated information as it is in the image information storage memory when notified by
The image information is recorded after performing the resolution conversion process from the document size and resolution when the image information is stored in the image information storage memory to the document size at the time of operation setting and resolution.

[0009]

The facsimile machine constructed as described above is
If the image information storage memory memo is smaller than the memory capacity required to store the image information, the linear density determined by the operator and the original density detected are stored in the image information storage memory with a coarser linear density and a smaller original size. The probability that a memory full will occur can be reduced.

Further, when the image information is stored in the image information storage memory, the resolution and the document size can be changed independently of the other party's ability to send the image information. It can be converted to any resolution and document size and stored.

Further, since the image information stored in the image information storage memory is enlarged, reduced, and complemented according to the document size and resolution determined by the communication procedure, and then sent to the other terminal, the other end is almost untouched. Image information can be received with an image quality equivalent to the image quality set at the time of document storage or set according to the communication procedure.

[0012]

EXAMPLES Example 1. FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention. Reference numeral 11 is a photoelectric conversion processing unit as a document reading unit for reading a document and converting it into an electric signal, and 12 is connected to the photoelectric conversion processing unit 11. The input document size and resolution conversion processing unit 13 for changing the linear density of the read image signal to reduce the size of the document are connected to the document size and resolution conversion processing unit 12, and the read redundancy is high. An encoding processing unit that performs compression encoding processing of image data, 14 is an image information storage memory that is connected to the encoding processing unit 13 and stores and stores encoded image information, and 15 is a paper sheet of a document read by the photoelectric conversion processing unit 11. A paper size sensor for detecting the size (original size), 16 is a display means for displaying the resolution and other information at the time of reading the original to the operator, and an operation desired by the operator. An operation unit 17 having an input unit for inputting the input, a paper size 17 at the time of reading an original for each page of image data accumulated in the image information storage memory 14, a resolution set by the operation unit 16, and This is an image information management file that manages and stores the paper size, the resolution, and the memory capacity of the image data that have been actually stored.

Reference numeral 18 indicates in advance how much memory capacity is required according to the original size and resolution, calculates how much the memory capacity can be reduced by changing the original size and resolution, and reads the original of the original to be read. By giving the size, the resolution, and the remaining memory capacity of the image information storage memory 14, the document size and the resolution suitable for accumulating in the image information storage memory 14 are given in the form of a table or have a function of calculating and indicating. It is an input resolution and reduction rate change table. The input resolution / reduction rate change table 18 is
Paper size information of the original document which is connected to the paper size sensor 15, the operation unit 16 and the image information management file 17, and is currently being read by the paper size sensor 15, the resolution set by the operator set by the operation unit 16, and , The resolution and the paper size at which the document to be read will be actually stored are determined based on the information such as the memory capacity capable of storing the current image information provided from the image information management file 17, and the input document size and the resolution conversion process are performed. It serves to request the section 12 to change the document size and resolution.

Further, 19 is connected to the image information management file 17 and is transmitted by the paper size and resolution determined by the communication procedure when transmitting the original and the information stored in the image information management file 17. Transmission resolution and reduction rate change table for determining the resolution and the paper size at the time, 20
Is a decoding processing unit that decodes the encoded image information accumulated in the image information storage memory 14, 21 is connected to the transmission resolution / reduction rate change table 19 and the decoding processing unit 20, and the transmission resolution and reduction rate A transmission document size and resolution conversion processing unit for enlarging and reducing the image information accumulated in the image information storage memory 14 to the resolution and paper size set by the change table 19, which constitute a resolution document size selecting unit. ing.

Reference numeral 22 denotes a complementing processing unit, which is connected to the transmission document size / resolution conversion processing unit 21 and complements a discontinuous point generated at an edge or the like of image data generated by enlargement processing or the like.
3 is connected to the complementing processing unit 22, and is a communication encoding processing unit that encodes image information according to the code rule determined by the communication procedure. Reference numeral 24 is connected to the communication encoding processing unit 23 and communication that controls the communication procedure. The control unit 25 is a line control unit that is connected to the communication control unit 24 and controls the connection of communication lines.
Communication coding processing unit 23, communication control unit 24, line control unit 2
Reference numeral 5 constitutes data communication means for transmitting / receiving data such as image information to / from a receiving terminal through a communication line.

FIG. 2 is a table showing the management information of the image information stored in the image information management file 17. Reference numeral 26 indicates the top of the image information when the image information is stored page by page in the image information storage memory 14. An image information address indicating an address, 27 is an image information amount indicating the amount of accumulated image information for each page, 28
Is an operation setting original size that stores the original paper size detected by the paper size sensor 15, and 29 is the operation unit 1
The operation setting resolution which stores the resolution desired to be transmitted by the operator set by 6, 6 is the input resolution,
A reading original size that stores the original size determined by the reduction rate change table 18, 31 is an input resolution, a reading resolution that stores the resolution determined by the reduction rate change table 18, and 32 is image information management. This is a page management area in which information for each page stored in the file 17 is configured as a document.

FIG. 3 is a diagram showing an example of a communication procedure according to CCITT Recommendation T.30, the transmission control character CNG indicates that the calling station is a non-voice terminal, and the transmission control character C
ED indicates that the called station is connected to the line as a facsimile, and similarly, (NFS) (CSI) DIS transmits the ability of the called station as a facsimile to the calling station side (TSI). DCS transmits to the transmitting side that the calling station compares and transmits the capabilities of the called station, TCF checks the line status, and CFR informs the receiving side that the receiving side has successfully received the TCF. It means that PIX is image data to be transmitted from the transmitting side to the receiving side.
Indicates that the transmitted PIX is the end of the document, MCF is a response to EOP when reception is normal, and DCN requests the receiver to disconnect the line.

FIG. 4 is a table showing an example of the input resolution / reduction rate changing table 18, 33 is a remaining memory capacity table showing a memory capacity capable of storing image information in the image information storing memory 14, and 34 is a remaining memory. The input setting table corresponding to the original size and the resolution at the time of each operation setting corresponding to the capacity table 33, and 35 denotes the reading original size and the reading resolution corresponding to the input setting table 34 according to the remaining memory capacity. It is a recorded image information setting table.

Next, the operation of the first embodiment will be described with reference to FIGS.
This will be described with reference to FIG. First, it is judged whether or not the transmission document is set in this facsimile device (step S
1) Then, it is determined whether or not a transmission start instruction is set in the operation unit 16 by the operator (step S).
2). When set, the internal management information for performing the reading operation is stored in the page management area 32, and the paper size sensor 1
The paper size (original size) of the original document to be read by No. 5 is set to the operation original size 28 according to internal management information.
Set to. At the same time, the resolution set by the operator on the operation unit 16 is set as the operation setting resolution (steps S3 to S5).

Next, the image information amount 27 of all the image information which has been accumulated so far, which is managed by the image information management file 17, is stored.
Is added and subtracted from the total capacity of the image information storage memory 14 to calculate the remaining memory capacity (steps S6 to S6).
7). The remaining memory capacity and the images of the input setting table 34 to the input setting table 34 and the remaining memory capacity table 33 corresponding to the input setting original size 28 and the operating setting resolution 29 stored in the image information management file 17 are changed. Document size 30 when reading from the information setting table 35
Image resolution management file 1
7 (steps S8 to S9).

Next, from the image information address 26 and the image information amount 27 which have been stored in the image information management file 17 up to now, the first encoded image information can be stored in the image information storage memory 14. Find the address, image information management file 1
7 is stored in the image information address 26 (step S1).
0).

The input document size and resolution conversion processing unit 12 are set based on the operation setting document size 28, the operation setting resolution 29, the reading document size 30, and the reading resolution 31 stored in the image information management file 17. In step S11), the photoelectric conversion processing unit 11 starts photoelectric conversion,
The image data obtained by photoelectric conversion is input document size, and the resolution conversion processing unit 12 reduces and converts the resolution based on the set value. The reduced and resolution-converted image data is encoded by the encoding processing unit 13. The encoded image data is stored in the image information storage memory 14 from the image information address 26 of the image information management file 17, and it is determined whether or not the storage of all data is completed (steps S12 to S13). 1
When reading of pages is completed, image information storage memory 1
The amount of encoded image information for one page stored in 4 is searched and recorded in the image information amount 27 of the image information management file 17 (step S14). After that, if there is a document requiring a reading operation subsequently, the internal management information is newly changed, and the page management area 3 of the image information management file 17 is changed.
2, the above operation is repeated thereafter. When the original is the last page and the reading operation is unnecessary, the operation for waiting for the setting of the original to be transmitted is executed (steps S14 to S15, step S3, step S1). ..

Next, the transmission operation will be described. According to the above operation, it is determined whether or not the conditions for storing in the image information storage memory 14 and the conditions for transmission are met (step S20).
In the case of ES, first, the line control unit 25 interfaces with a communication line, a telephone network, or the like, connects the partner terminal and the communication line, and determines whether or not the line is connected (step S21). When the connection with the partner terminal is confirmed, the communication controller 24 transmits the transmission control character CNG to the partner terminal via the line controller 25 (step S22). When the other party's terminal is, for example, a G3 facsimile, the other party's terminal receiving the CNG is CED and (NFS) (CS
I) Send DIS. Next, in step S23, the communication control unit 24 determines whether or not (NFS) (CSI) DIS is received, and the communication control unit 24 (NFS) (CSI).
The transmission resolution / reduction rate change table 19 is notified of the document size and resolution information that can be received by the other party in the DIS (step S24).

The transmission resolution / reduction ratio change table 19 is
When the reading document size 30 and the reading resolution 31 of the image information management file 17 are equal to the maximum receivable paper size on the receiving side in the (NFS) (CSI) DIS and the most detailed resolution, the following operation is performed. Do (Step S
25).

The transmission resolution / reduction ratio changing table 19 is
The transmission resolution of (TSI) DCS and the reading resolution 31 and the reading document size 30 are set in the communication control unit 24, and the transmission document size, the resolution conversion processing unit 21 and the complement processing unit 22 are set to the image information. Make a setting that does not change anything.

The communication control unit 14 sends (TSI) DCS according to the reading resolution and the document size in step S26, and then in step S27, the transmission document size, the resolution conversion processing unit 21 and the complement processing unit 22 only transfer. After setting and transmitting the TCF, it is judged whether or not the CFR is received (step S28). When the CFR is received, the address of the image information address 26 of the image information management file 17 is sent to the decoding processing unit 20. Transfer and decryption processing unit 20
Sends the decoded image information to the transmission document size / resolution conversion processing unit 21. The transmission document size / resolution conversion processing unit 21 transfers this to the complement processing unit 22 without changing the image information, and the complement processing unit 22 similarly modifies the image information. The image data is transferred to the communication encoding processing unit 23 without it. The communication encoding processing unit 23 transfers the image data as PIX data to the communication control unit 24. When the decoding processing unit 20 has transferred the encoded image data in the image information storage memory 14 by the amount of the image information amount 27, the decoding process is terminated, and at the same time, the transmission document size and the resolution conversion processing unit. The respective units 21, 21, the complementary processing unit 22, and the communication encoding processing unit 23 also end the processing when the image data has been transferred to the communication control unit 14. Communication control unit 24
Sends EOP at the end of the transfer of image information to the receiving end and then receives DCN after receiving MCF.
Disconnects the line at the end of sending the
A series of processing is ended together with the line control unit 25 (steps S29 to S36).

When reading the image information management file 17, the original document size 30 and the reading resolution 31 are (NFS) (CS
I) If the maximum paper size that can be received by the receiving side in the DIS is different from the most detailed resolution, the determination in step S25 is NO, so the process proceeds to step S37 in FIG. 7 and the operation described below is performed. ..

The present facsimile machine sets the manuscript size 28 for operation setting to the maximum paper size receivable at the receiving end which is equal to or larger than the manuscript size 28 for operation setting, and (NFS) (CSI) in other cases. ) The maximum paper size that can be received by the receiving terminal side in the DIS is notified to the transmission document size, the resolution conversion processing unit 21, and the communication control unit 24, respectively.

Similarly, in the present facsimile apparatus, the most detailed resolution that can be received by the receiving terminal is the resolution 2 when the operation is set.
If it is equal to 9 or is detailed, the resolution at operation setting 29
Otherwise, the most detailed resolution that can be received by the receiving terminal in the (NFS) (CSI) DIS is notified to the transmission document size, the resolution conversion processing unit 21 and the communication control unit 24.

Transmission original size / resolution conversion processing section 21
Sets the image information having the read document size 30 and the read resolution 31 in the image information management file 17 to the resolution and document size notified to the transmission resolution / reduction ratio change table 19 (step S37). ~ S
38, step S40).

The communication control unit 14 sends the resolution of the image data transmitted by the (TSI) DCS and the transmission resolution as the information of the document size, and the resolution and the document size notified to the reduction ratio changing table 19, (TSI). DCS and T
If the CFR is received after sending the CF, it is transferred from the address of the image information address 26 of the image information management file 17 to the decoding processing unit 20, and the decoding processing unit 20 sends the decoded image information to the transmission document size. , To the resolution conversion processing unit 21.

Transmission original size / resolution conversion processing unit 21
Is the reading resolution 31 and the reading document size 30.
Image information having a transmission resolution / reduction ratio change table 19
The image data is changed so as to have the resolution and the document size notified from, and the image data is transferred to the complement processing unit 22.

The complementing processing section 22 has a reading resolution 31.
Is coarser than the resolution notified from the transmission resolution / reduction rate change table 19, complement processing is performed. In other cases, nothing is performed and the image data is transferred to the communication encoding processing unit 23. The communication encoding processing unit 23 sends a P to the communication control unit 24.
The image data is transferred as IX data. The decoding processing unit 20 ends the decoding processing when the encoded image data in the image information storage memory 14 has been transferred up to the image information amount 27. At the same time, the transmission document size / resolution conversion processing unit 21, the complementation processing unit 22, and the communication coding processing unit 23 also complete the processing when the image data has been transferred to the communication control unit 24. The communication control unit 24 transmits EOP at the time point when the transfer of the image information to the receiving side terminal is completed, then receives DCF to the receiving side terminal after receiving MCF, and then ends with the line control unit 25. Yes (steps S28 to S36,
Step S39).

The operation from the setting of the document to the storage of the encoded image information in the image information storage memory 14 (steps S1 to S19) and the disconnection of the communication line after the conditions for transmission are met. Up to (steps S20 to S
40) may be synchronous or asynchronous, and the part that processes the image signal may be hardware, software, or electrical,
Alternatively, it may be optical. Furthermore, the series of operations may be performed only when the operation unit 16 is requested by the operator.

Example 2. The configuration of the second embodiment of the present invention will be described below with reference to FIG. In the figure, 11, 1
2, 14 to 16 are in accordance with the first embodiment. Reference numeral 13 denotes an encoding processing unit which is connected to the input side of the outputs of the input document size resolution conversion processing unit 12 and the communication encoding processing unit 36 and which encodes the input image information and outputs it to the image information storage memory 14. The paper size at the time of reading the original for each page of the image data accumulated so far in the image information storage memory 14, the resolution set by the operation unit 16, and the paper size and the resolution receiving operation in which the actual accumulation operation is performed are displayed. This is an image information management file that manages and stores the paper size, the resolution, and the memory capacity of the image data determined by the communication procedure when the operation is performed.

Reference numeral 18 calculates in advance how much memory is required according to the document size and resolution, calculates how much the memory capacity can be reduced by changing the document size and resolution, and calculates the document size and resolution of the document to be read. It is an input resolution / reduction ratio change table given as a function of displaying or calculating a document size and resolution suitable for accumulating in the image information storage memory 14 when the memory remaining amount of the image information storage memory 14 is given. The input resolution reduction rate change table 18 is connected to the paper size sensor 15, the operation unit 16, and the information management file 17, and information on the paper size of the original document currently being read by the paper size sensor 15
Depending on the resolution desired by the operator set by the operation unit 16 and the information such as the memory capacity capable of accumulating the current image information of the image inertia information management file 17, the resolution and the paper for actually accumulating the original document to be read from now on. Determine the size, input document size, resolution conversion processing unit 1
It functions to request 2 to change the document size and resolution.

Reference numeral 20 is connected to the image information storage memory 14,
The decoding processing unit 23 for decoding the encoded image information accumulated in the image information storage memory 14 is connected to the decoding processing unit 20 and encodes the image information according to the encoding rule determined by the communication procedure. The communication encoding processing unit, 24 is connected to the communication encoding processing unit 23, and controls the communication procedure.
A line control unit 5 is connected to the communication control unit 24 and controls the connection of communication lines. Further, 36 is the communication control unit 24.
Is connected to the communication decoding processing unit for decoding the received encoded image data, 37 is connected to the decoding processing unit 20, and converts the document size and resolution of the image information according to the information of the image information management file 17. The size of the document to be processed
A resolution conversion processing unit, 38 is connected to the recording original size / resolution conversion processing unit 37, and a recording complementation processing unit for complementing discontinuous points occurring at edges of image data generated by enlargement processing and the like, 39 is a recording complementation process. The recording unit is connected to the unit 38 and prints the image information transferred from the recording complement processing unit 38 based on the document size and the resolution based on the information of the image information management file 17.

FIG. 10 is a table showing the management information of the image information stored in the image information management file 17, and 26 to 3 are shown.
2 is the same as that of the first embodiment shown in FIG. 40
Is a transmission / reception attribute that stores information for distinguishing whether the image information stored in the image information storage memory 14 is stored at the time of reception or document information.

Next, the operation of the second embodiment will be described with reference to FIGS. 5 to 12, taking as an example the case where one original is communicated. First, in step S1 of FIG. 5, it is determined whether or not a transmission document is set in this facsimile device, and Y
In the case of ES, the process proceeds to step S2, and it is determined whether or not a transmission start instruction is set in the operation unit 16 by the operator. If YES, the process proceeds to step S3 to manage the internal management information for reading operation by page management. The paper size of the original stored in the area 32 and read by the paper size sensor 15 is the original size 28 when the operation setting is performed according to the internal management information.
The transmission / reception attribute 40 of the image information management file 17 is set to the transmission attribute. At the same time, the operating unit 16 is operated by the operator.
The resolution set to is stored in the operation setting resolution 29 (steps S4 to S5). Next, image information management file 1
The image information amount 27 of all the image information that has been stored so far, which is managed by 7, is all added and subtracted from the total capacity of the image information storage memory 14 to calculate the remaining memory capacity (step S6). ~ S7). The remaining memory capacity, the input resolution according to the operation setting document size 28 and the operation setting resolution 29 stored in the image information management file 17, the reduction ratio changing table 18 to the remaining memory capacity table 33, the input setting table 34, and The document size 30 at reading and the resolution 31 at reading are obtained from the image information setting table 35 and stored in the image information management file 17 (step S8).
~ S9).

Next, by calculating the free space address of the storable memory from the image information address 26 and the image information amount 27 which are now stored in the image information management file 17, the image information storage memory 14 is next encoded. The top address that can store the extracted image information is obtained and stored in the image information address 26 of the image information management file 17 (step S10).

Based on the operation setting document size 28, the operation setting resolution 29, the reading document size 30, and the reading resolution 31, which are stored in the image information management file 17,
After setting the input document size and resolution conversion processing unit 12,
The reading operation of the document is started by the photoelectric conversion action of the photoelectric conversion processing unit 11 (step S12). Then, the input document size and resolution conversion processing unit 12 performs reduction and resolution conversion on the obtained image data based on the set value. The reduced and resolution-converted image data is encoded by the encoding processing unit 13, and the encoded image data is stored in the image information storage memory 14 from the image information address 26 of the image information management file 17. When the reading of one page is completed, the amount of encoded image information for one page stored in the image information storage memory 14 is searched and recorded in the image information amount 27 of the image information management file 17 (step 12 to 1
3). After that, if there is a document that needs to be read subsequently, the internal management information is newly changed and written in the page management area 32 of the image information management file 17, and the above-described operation is repeated. Also, the manuscript is the final page,
When the reading operation is unnecessary, the operation of waiting for the setting of the original to be transmitted is performed (steps S14 to S15, step S3, step S1).

Next, the transmission operation will be described. Image information is accumulated in the image information storage memory 14 by the above operation,
It is determined whether the conditions for transmission have been met (step S2
0), if the determination is YES, first, the line control unit 25 interfaces with a communication line, a telephone network, etc., and connects the line to the other end (step S21). When the connection with the other terminal is confirmed, the communication control unit 24 causes the line control unit 2
When CNG is sent to the partner terminal via 5 (step S22), the partner terminal receives CNG and sends CED and (NFS) (CSI) DIS. Then, when the communication control unit 24 receives the (NFS) (CSI) DIS (step S23) and the information in the (NFS) (CSI) DIS indicates that the receiving terminal has the function of the second embodiment, The communication control unit 24 uses the image information management file 17
Document size 28 when operation settings are made, resolution 29 when operation settings are made,
Information of the reading document size 30 and the reading resolution 31 is sent to the partner terminal as the contents of (TSI) DCS, and then the TCF is sent (steps S41 to S4 in FIG. 9).
2).

The communication control section 24 carries out step S28 in FIG.
It is determined whether or not the CFR has been received in step S6, and if the CFR is received, the image information address 26 of the image information management file 17
From the address to the decoding processing unit 20, and the decoding processing unit 20 transfers the decoded image information to the communication encoding processing unit 23 as image data. The communication encoding processing unit 23 transfers the image data as PIX data to the communication control unit 24. When the decoding processing unit 20 completes the transfer of the encoded image data on the image information storage memory 14 by the amount of the image information amount 27, the decoding process ends, and at the same time, the communication encoding processing unit 23 also creates the image. The process ends when the data has been transferred to the communication control unit 24. The communication control unit 24 sends an EOP to the receiving side terminal when the transfer of the image information is completed,
Next, when the DCN has been transmitted to the receiving side terminal after receiving the MCF, the process ends together with the line control unit 25 (steps S29 to S36).

Next, the receiving operation of the apparatus of this embodiment will be described with reference to FIG. 11 by taking the case of receiving one original as an example. The line control unit 25 that has detected the line closure notifies the communication control unit 24 that the line has been closed. The communication control unit 24 receives the CNG from the transmitting terminal side and then performs the CED
Is transmitted, and then the receiving terminal notifies the transmitting side by (NFS) (CSI) DIS that the receiving end having the function according to the second embodiment is not present (steps S43 to S46).

When the (TSI) DCS is received from the transmitting side, the operation setting document size 28, the operation setting resolution 29, the reading document size 30, and the reading resolution 31 of the (TSI) DCS are stored in the image information management file 17. In order to store the image information to be written and to be received, the address of the image information storage memory 14 where the image information has been stored so far is obtained, and the image information address 26 and the transmission / reception attribute 40 indicate that the received image information is received. Store. After that, if the TCF is received and no error occurs, the CFR is notified to the transmitting side (steps S47 to S50).

When the PIX is received from the transmitting side, the communication control unit 24 passes the coded image information to the communication decoding processing unit 36, and the communication decoding processing unit 36 decodes it according to the coding method determined by the communication procedure. Then, in order to convert into a code suitable for storage in the image information storage memory 14, the encoding processing unit 1
Image information is transferred to 3. The encoding processing unit 13 encodes the transferred image information, and accumulates the encoded image information from the address at the image information address 26. EO from sender
Upon receiving P, the communication control unit 24 causes the communication decoding processing unit 3
6 is completed, and the communication decoding processing unit 36 and the encoding processing unit 23 are also completed after transferring all the data. When all the image information is stored in the image information storage memory 14, the image information amount generated by the reception up to that point is calculated, and the result is stored in the image information amount 27. After that, the line is disconnected when DCN is received (steps S51 to S57).

Next, the recording operation of the apparatus of this embodiment will be described with reference to FIG. When the image information received by the above operation is accumulated in the image information storage memory 14 and becomes convenient for recording, the recording document size / resolution conversion processing unit 37 causes the operation information document of the image information management file 17 to be set. By referring to the size 28, the operation setting resolution 29, the reading original size 30, and the reading resolution 31, the image information of the reading original size 30 and the reading resolution 31 becomes the operation setting original size 28 and the operation setting resolution 29. The settings are made so that (steps S58 to S59).

Thereafter, the image information is transferred to the decoding processing section 20 from the image information address 26 of the image information storage memory 14, and the encoded image information is transferred to the recording document size / resolution conversion processing section 37. Recorded document size and resolution conversion processing unit 3
7 is converted into image information of the operation setting document size 28 and the operation setting resolution 29 as set values, and the recording complement processing unit 38
Transfer to. The recording complement processing unit 38 smoothes unnecessary edges and the like generated at the time of enlargement, and the recording unit 39 prints image information on recording paper. When the amount of image information is transferred from the image information storage memory 14 to the decoding processing unit 20 and the processing of all the image information is completed, the decoding processing unit 20 stops its operation. Similarly, all the image information associated with the current recording operation is transferred to the recording unit 39, and when the recording unit 39 finishes printing, the recording operation ends (steps S60 to S63).

[0049]

As described above, according to the present invention, based on the memory remaining amount of the image information storage memory capable of accumulating the current image data at the start of reading the original, and the original size and resolution of the original to be read. , When changing the document size and resolution of the image information to be stored in the image information storage memory and reducing the image information before storing it in the image information storage memory and sending it, The determined resolution and original size are compared with the paper size of the original stored during detection and storage when reading the original, the resolution set by the operator, and the actual stored paper size and resolution of the original, and the most appropriate for transmission. To get the resolution and document size you think
Since it is configured to expand and complement the accumulated image information and send it out, it reduces the possibility of memory full that restricts the operation that accompanies the accumulation of image information in the memory, and the transmission determined by the communication procedure. It is possible to obtain image quality according to the linear density and recording width capability of the other party.

Further, if it is constructed as in claim 2,
Not only is the probability that memory full will occur during the reading operation on the sending side, the probability that memory full will occur on the receiving side will be reduced, and there will be no restrictions on operation, and the original that the sending side wishes to read The image quality of size and resolution can be easily obtained.

[Brief description of drawings]

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

FIG. 2 is a table showing an example of an image information management file according to the first embodiment of the present invention.

FIG. 3 is a CCIT for explaining the first embodiment of the present invention.
It is a sequence diagram which shows the communication procedure by T recommendation T * 3O.

FIG. 4 is a table showing an example of an input resolution / reduction ratio change table according to the first embodiment of the present invention.

FIG. 5 is a flowchart showing a reading operation according to the first embodiment of the present invention.

FIG. 6 is a flowchart showing a transmission operation according to the first embodiment of the present invention.

FIG. 7 is a flowchart showing a transmission operation according to the first embodiment of the present invention.

FIG. 8 is a block diagram showing a configuration of a second embodiment of the present invention.

FIG. 9 is a flowchart showing a transmission operation according to the second embodiment of the present invention.

FIG. 10 is a table showing an example of an image information management file according to the second embodiment of the present invention.

FIG. 11 is a flowchart showing a receiving operation according to the embodiment of the present invention.

FIG. 12 is a flowchart showing a recording operation according to the embodiment of the present invention.

FIG. 13 is a block diagram showing a configuration of a conventional facsimile apparatus.

[Explanation of symbols]

 11 photoelectric conversion processing unit 12 input document size, resolution conversion processing unit 13 encoding processing unit 14 image information storage memory 15 paper size sensor 16 operation unit 17 image information management file 18 input resolution, reduction rate change table 19 transmission resolution, reduction rate Change table 20 Decoding processing unit 21 Transmission document size / resolution conversion processing unit 22 Complementary processing unit 23 Communication encoding processing unit 24 Communication control unit 25 Line control unit 26 Image information address 27 Image information amount 28 Operation setting document size 29 Operation Setting resolution 30 Reading original size 31 Reading resolution 32 Page management area 33 Remaining memory capacity table 34 Input setting table 35 Image information setting table 36 Communication decoding processing section 37 Recording original size, resolution conversion processing section 38 Recording complement processing section 39 recording section 40 sending and receiving attributes

Claims (2)

[Claims] 1. A document reading unit for reading a document and converting it into image information, an image information storage memory for temporarily storing and storing the read image information, a resolution of image information and a paper when storing and storing the image information. In a facsimile apparatus equipped with an input document size / resolution conversion processing unit for performing size conversion processing and a data communication means for transmitting / receiving data such as image information to / from a receiving terminal through a communication line, When the capacity for newly storing and storing image information is compared with the document size and resolution of the original to be read, and if the capacity for storing and storing is small, the document size and resolution of the image information to be stored and stored are set to the set resolution. The image information is stored in the image information storage memory after the document size and resolution are converted so that the image information is generated less than the document size. Means, a transmission document size and resolution conversion processing unit that converts the resolution and document size of the image information when transmitting the image information stored and stored in the image information storage memory, and performs the document size and resolution conversion processing during storage. The resolution that seems to be optimal for transmission by comparing the stored setting values with the resolution and original size when the original scanning operation was set and the resolution and original size determined in the communication procedure at the time of transmission. And a resolution document size selecting means for selecting a document size, and an image information complementing processing unit, and a document size for the image information stored in the image information storage memory to have the selected resolution and document size.
A facsimile apparatus, characterized in that after the resolution conversion processing, the image information is complemented and the image data is transmitted to a receiving terminal through a communication line. 2. An original reading unit for reading an original and converting it into image information, an image information storage memory for temporarily storing and storing the image information, and a resolution and a paper size of the image information when storing and storing the image information. In a facsimile apparatus equipped with an input document size / resolution conversion processing unit for performing conversion processing and a data communication unit for transmitting / receiving data such as image information to / from a receiving terminal through a communication line, image information is stored in an image information storage memory. When the capacity that can be stored and stored is small, the original size and resolution of the image information that is stored and stored are compared with the set resolution and the original size. A means for accumulating and storing the image information in the image information storage memory after converting the document size and resolution so that the generation of the image information is smaller than the size. The recorded document size and resolution conversion processing unit that converts the document size and resolution when recording the received image information, the document size and resolution set at the time of reading, and the document size and resolution actually stored A means for notifying the receiving terminal by the communication procedure at the time of transmission and sending the image information stored in the image information storage memory to the receiving terminal as it is, and the document size, resolution and image information storage memory for operation setting. When the original size and resolution at the time of transmission are notified by the communication procedure from the sending end, the information is separately stored, and means for accumulating the communicated information as it is in the image information storage memory is provided. Image information is recorded after performing resolution conversion processing from the original size and resolution when the information was stored in the image information storage memory to the original size and resolution at the operation setting. Facsimile apparatus characterized by being configured to.