JP3258616B2 - Image communication system, control method therefor, and storage medium - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a main unit for reading and recording an image, and a communication unit for transmitting and receiving image information, which are independent from each other as a main unit and a communication device. The present invention relates to an image communication system having a direct transmission function of transmitting image information to a destination terminal, a control method thereof, and a storage medium.

[0002]

2. Description of the Related Art Conventionally, in a direct transmission operation in a facsimile apparatus having a direct transmission function in which a main unit and a communication unit are independent, the main unit (main unit) is managed by being divided into blocks of a predetermined size. A memory block is secured in a memory, an image is stored in the memory block, and when an image information transfer request is received from a communication unit (communication device), the memory block is divided into a predetermined number, and the divided size is set. Check if it has been stored, and if not, send a request to the communication unit to wait,
If it has been stored, it is transferred by the divided size, and then, when an image information transfer request is received from the communication unit, it is checked whether or not it has been stored by the next divided size, and the transfer is performed. This was repeated for the memory block. Further, even when image information is stored in a plurality of memory blocks, the same processing is repeated for the next memory block.

[0003]

However, in the above-described conventional example, the memory block is divided into a predetermined number, and it is determined whether the memory block has been stored by the divided size and whether to transfer the memory block is determined. Since the transfer is not started until the data is accumulated by the size, the communication must be extended in the communication unit during that time, and there is a problem that the communication time is unnecessarily extended.

An object of the present invention is to enable a smooth direct transmission operation to be obtained in an image communication system in which image information is transferred from a main unit to a communication unit and transmitted.

[0005]

According to the present invention, there is provided an image communication system including a main unit and a communication device, wherein the main unit includes a reading unit for reading an image on a document, and a memory having a block of a predetermined size. A main body memory management unit that divides and manages the image information for each image, a main body memory unit that stores image information read by the reading unit in a memory using the main body memory management unit, and receives an image information transfer request from a communication device. When an image information transfer request is received by the transfer request receiving unit and the transfer request receiving unit, the memory unit is managed by the memory management unit, and the number of blocks of the stored image information is reduced to a predetermined number in block units. Transfer means for dividing and transferring to the communication device, and direct transmission means for operating the communication device and the main unit in synchronization with each page; The apparatus includes: a transfer request transmitting unit that requests the main unit to transfer a transmission image; a receiving unit that receives image information transferred from the main unit as a result of the transfer request transmitting unit; and a memory having a block of a predetermined size. Communication memory management means for dividing and managing each image data, communication memory means for storing image information received by the reception means in a memory using the communication memory management means, and image information stored in the communication memory means. Image transmitting means for transmitting through a communication line, and direct transmitting means for operating the communication device and the main unit in synchronization with each page, further comprising:
In the transfer unit of the main unit, a determination unit that determines whether image information corresponding to a size divided into a predetermined number in block units is stored, and when the determination unit determines that image information is not stored, Transfer control means for further dividing the image information of the predetermined number into the predetermined number and transferring the image information.

According to the present invention, there is provided a control method of an image communication system comprising a main unit and a communication device, wherein the control method of the main unit includes a reading step of reading an image on a document, and a memory having a predetermined size. A main memory management step of dividing and managing each block, a main memory step of storing image information read in the reading step in a memory using the main memory management step, and an image information transfer request from the communication device. A transfer request receiving step of receiving, and when an image information transfer request is received in the transfer request receiving step, a predetermined number of blocks of image information managed and stored in the memory by the memory management step in block units. And a direct transmission step of operating the communication device and the main unit in synchronization with each other on a page-by-page basis. A control method of the communication device, a transmission request transmission step of requesting the main apparatus to transmit a transmission image, and a reception step of receiving image information transferred from the main apparatus as a result of the transmission request transmission step, A communication memory management step of dividing and managing the memory for each block of a predetermined size, a communication memory step of storing image information received in the receiving step in the memory using the communication memory management step, and storing the image information in the memory An image transmission step of transmitting the obtained image information through a communication line, and a direct transmission step of operating the communication device and the main unit in synchronization with each page, and further, in the transfer step in the main unit, A determining step of determining whether image information corresponding to a predetermined number of divided sizes is stored, and determining whether the image information is not stored by the determining unit. If it is determined,
And a transfer control step of further dividing the image information of the predetermined number and transferring the image information.

According to the present invention, there is provided a computer-readable storage medium storing a program for controlling an image communication system including a main body device and a communication device, wherein the main body device reads an image on a document. A main memory management step of dividing the memory into blocks of a predetermined size and managing the same; a main memory step of storing the image information read in the reading step in the memory using the main memory management step; A transfer request receiving step of receiving an image information transfer request from the device, and a block of image information stored and managed in the memory by the memory management step when an image information transfer request is received in the transfer request receiving step. Is divided into a predetermined number in block units, and is transferred to the communication device. Direct transmission means for operating in synchronization with the main device, further, in the transfer step in the main body device, a determination step of determining whether image information of a size divided into a predetermined number in block units is stored A program for executing a transfer control step of further dividing the image information having the size divided into the predetermined number and transferring the image information in the predetermined number when the judgment means judges that the image information is not stored. It is characterized by the following.

[0008]

In the above arrangement, the image information to be transmitted is stored in a memory block of a predetermined size, and the memory block is divided into a predetermined size. If the divided memory is divided into a predetermined number and the image information of the divided size is stored, the communication time must be unnecessarily extended in the communication device by transferring the size. Such a problem is prevented as much as possible.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic block diagram showing a configuration example of an image communication system according to the present invention.

The image communication system includes a main unit (main device) for reading and recording an image, transmitting image information,
The communication units (communication devices) that perform reception are independent of each other, and have a direct transmission function of transmitting image information to a destination terminal while reading an image.

The main body includes a first CPU (central processing unit) 1
Performs various processes related to image reading, recording, operation, transmission of information with the communication unit, and the like.
U1 has a first ROM (read only memory) 2,
First RAM (random access memory) 3, display 4, keyboard 5, first image memory 6, read control gate array 7, recording control gate array 9, second encoding device (codec) 11, first Centronics i / F12 is connected. Although not shown in the drawing, the first encoding device 11 includes an encoding unit, a decoding unit, a reading unit, a recording unit, a buffer memory, and the like.

A contact sensor 8 is connected to the read control gate array 7, and a laser printer 10 is connected to the recording control gate array 9.

The first CPU 1 executes various processes corresponding to the flowcharts shown in FIGS. 3 and 4 while controlling other components according to various programs preset in the first ROM 2. At this time, the first CPU 1
The RAM 3 is used as a work area. Note that the first C
Part of the program for the PU1 to execute the control is a floppy disk, hard disk, optical disk, C
The program is stored in a storage medium such as a D-ROM or a memory card, and the program is read and taken into the main body.
It may be executed by the first CPU 1.

The contact sensor 8 is constituted by a photoelectric conversion element such as a CCD, and converts an optically read original image into an electric signal under the control of the read control gate array 7 at the time of image reading, and outputs the converted image as image information. 1 to the encoding device 11.

The first encoding device 11 compresses and encodes the image data and stores it in the first image memory 6. At this time, the first image memory 6 is managed by being divided into 16 Kbyte size blocks. When storing image information in the first image memory 6, one block is first secured from the first image memory 6, and the memory block is stored. To be stored. When the secured memory block is full of image information, the next memory block is secured and stored.

At the time of image transmission, the communication unit is notified of the image transmission via the first Centronics i / f12, and after the facsimile communication protocol is established, the communication unit sends an image transfer request command to the first Centronics i / f12. Can be The main unit acquires the image information to be transferred to the communication unit in block units, divides the memory block into eight, and divides the memory block into eight every time an image transfer request command is received, that is, the first Centronics i every 2 Kbytes.
/ F12 to the transmission unit.

Here, the memory block to be transmitted is divided and transferred by the first Centronics i / f1.
2 and the second Centronics i / f 16 so as not to occupy only the image information transfer. Then, when the transfer of all the acquired memory blocks is completed, that is, when the transfer of all 16 Kbytes is completed, the memory block is released, and the same operation is repeated if there is a next memory block to be transmitted. Also, data such as a transmission instruction, a destination terminal telephone number, and a transmission result are communicated between the main unit and the communication unit via the first Centronics i / f12.

On the other hand, the communication unit performs various processes such as transmission, reception, and transmission of information to and from the main unit with the second CPU 13 as a core.
4, the second RAM 15, the second Centronics i / f 16,
Second image memory 17, second encoding device 18, modem 1
9 is connected. Also, the second Centronics i / f
Reference numeral 16 is connected to the first Centronics i / f 12 of the main unit by an IEEE1284-compliant cable, and transmits and receives various information.

The second CPU 13 executes various processes while controlling other components according to various programs preset in the second ROM 14. At this time, the second CP
U13 uses the second RAM 15 as a work area. A part of the program for the second CPU 13 to execute the control is stored in a storage medium such as a floppy disk, a hard disk, an optical disk, a CD-ROM, and a memory card. The program is read and taken into the main body. , May be executed by the second CPU 13.

At the time of an image signal, information of transmission and information such as a telephone number of a hand-held terminal are received via the second Centronics i / f 16, and a call is transmitted to the network control device 20 via the modem 19. Then, the line is connected to the transmission partner terminal device, a transmission image information transfer request command is sent to the main unit through the second Centronics i / f 16, and the transmission image information is received. Further, the received transmission image information is temporarily stored in the second image memory 17 and then transferred to the second encoding device 18 in order to change to the compression method obtained by communication with the transmission destination terminal. And the modem 19
At the line N via the network controller 20.
Is output to

On the other hand, the line N, the network controller 20
Is received by the modem 19 under the control of the second CPU 13 to check and correct errors in the data, and is decoded by the decoder in the second encoder 18 to obtain the second image. After being compressed by encoding into a compression method for storage in the memory 17 and stored in the second image memory 17, it is transmitted to the main unit through the second Centronics i / f 16.

In the main body, under the control of the first CPU 1,
The first Centronics i / f 12 receives the image information from the communication unit and temporarily stores it in the first image memory 6. When recording a received image, the received image information stored in the first image memory 6 is decoded by a decoder in the first encoding device 11 and the laser printer 10 is controlled under the control of the recording control gate array 9. Is printed.

Although not shown, the keyboard 5 has ten keys for inputting a destination report (telephone number), a timer transmission time, and the like, and a transmission mode for instructing memory transmission to be performed asynchronously with direct transmission for synchronizing reading and transmission. Various function keys such as a key, a start key for instructing a transmission start, a registration key for registering registration data used for various operations of the apparatus, and a key for switching a mode of the apparatus standby state, that is, a copy state standby mode and a facsimile state A mode key for switching the standby mode and the like are arranged, and these also operate under the control of the first CPU 1.

The display 4 is a liquid crystal display (LCD)
And information corresponding to the operation keys of the keyboard 5, clock information, device status information, and the like are controlled by the CPU 1 under the control of the CPU 1.
CD, message, symbol, or LED
Is displayed by turning on and off of.

Next, an operation of transferring image data at the time of direct transmission in the image communication system having the above configuration will be described with reference to FIG.

Normally, on the main unit side, the memory is 16 Kbytes.
The data is divided into blocks e and managed, and at the time of direct transmission, a vacant block is secured from the memory, and the compressed read image information is accumulated in the memory block.
When an image transfer request is received from the communication unit, the memory block storing the image information to be transmitted is stored in 8 memory blocks.
The division, that is, whether or not 2 Kbytes have been accumulated, is transferred to the communication unit for 2 Kbytes, and the next request is waited for.
When the next request is received, it is checked whether or not the next 2 Kbytes have been stored, and the data is transferred.

On the other hand, when the reading section is not located between the communication sections, that is, when image information of 2 Kbytes is not stored, 2 Kbytes are further divided into eight, that is, 2 Kbytes.
Check if / 8 Kbytes have been stored and send 2
/ 8 Kbytes are transferred. At this time, the communication unit is also notified of the transfer size. Similarly, this 2 Kbyte is transferred every 2/8 Kbyte.

Next, the operation of transferring image information for one page on the main body side during direct transmission under the above-described image information transfer method will be described with reference to the flowcharts of FIGS.

First, at the start of page transfer, various parameters are initialized (S301). Where i is 2Kbytes
Indicates the number transferred and j is further 2 / 8K
The number indicates the number of data divided and transferred, and the mode is a flag indicating whether or not the data is divided into 2/8 Kbytes and transferred.

Next, an image information transfer request from the communication unit is waited for (S302). When the request is received, it is confirmed whether or not the image information of the transfer requested page has already been read and stored (S303). Confirm (S304, S3
05).

The page accumulation has not been completed (S30).
3) If the mode is not ON (S304), that is, at the time of 2Kbyte divided transfer, it is checked whether the transferred number i of 2Kbyte divided transfer is 8 (S305). i is 8
If not, the process proceeds to S307, and if i is 8, 2K
byte has been transferred 8 times, ie 16K
The byte memory block has been transferred, and the information of the next memory block is obtained (S306), and then S30
Go to 7.

Note that tb shown in S307 is a number indicating the memory block to which the image information to be transferred next belongs, and rb is a number indicating the memory block which is currently reading and storing the image information.

If the two memory blocks have different numbers in S307, all the memory blocks to which the image information to be transferred next belong can be transferred, and the flow advances to S318. Also,
If the two memory blocks have the same number in S307, it is checked whether 2K bytes can be transferred (S30).
8). If 2K bytes can be transferred, the process proceeds to S318, and if not, it is checked whether 2/8 K bytes can be transferred (S309). If 2/8 Kbytes cannot be transferred, a delay message indicating that the reading unit is delayed is sent to the communication unit (S314), and the image storage is continued while waiting for the next image information transfer request (S302). If 2/8 Kbyte transfer is possible in S309, mode is turned on, j is set to 0 (S310), and the process proceeds to S318.

When the mode is ON in S304, that is, at the time of 2/8 Kbyte divided transfer, it is checked whether the number of transferred j of the 2/8 Kbyte divided transfer is 8 (S31).
1). If j is not 8, the process proceeds to S312. If j is 8, it means that 2/8 Kbytes have been transferred eight times, that is, 2 Kbytes have been transferred, and mode is turned OFF to confirm whether the next 2 Kbytes can be transferred. One is added to the number i of 2 Kbytes (S317), and the process proceeds to S303.

If j is not 8 in S311, the number of the memory block to which the image information to be transferred next belongs is compared with the number of the memory block currently reading and storing the image information (S312). If the numbers are different, all the memory blocks to which the image information to be transferred next belongs can be transferred, and the process proceeds to S318.

If the two memory blocks have the same number in S312, it is checked whether ／ Kbyte transfer is possible (S313). If 転 送 Kbyte transfer is possible, the process proceeds to S318. If not, a delay message indicating that the reading unit is delayed is sent to the communication unit (S31).
4) While waiting for the next image information transfer request (S302), image accumulation is continued.

If the page accumulation is completed in S303, it is checked whether the mode is ON (S315), and m
If the mode is not ON, the process proceeds to S318, and when the mode is ON, that is, 2 / 8K at the time of 2 / 8Kbyte division transfer.
It is checked whether the transferred number j of the byte division transfer is 8 (S316). If j is not 8, the process proceeds to S318. If j is 8, it means that 2/8 Kbytes have been transferred eight times, that is, 2 Kbytes have been transferred, and mode is turned off to confirm whether the next 2 Kbytes can be transferred. 2Kby
One is added to the number i of te (S317), and the process proceeds to S303.
The above is the part that determines whether or not to transfer image information to the communication unit and how to divide the image information when transferring.

Next, S318 and subsequent steps correspond to a part for actually transferring image information. In step S318, whether the mode is ON, that is, whether the transfer is of 2 Kbyte size or 2/8 Kby
It is confirmed whether or not to perform the operation by te (S319, S32)
6). If mode is ON (S318) and i is 8 (S319), the memory block currently reserved for transfer has already been transferred, and the next memory block to be transferred is reserved (S320), and the transfer is performed. The released memory block is released (S321). Next, the first の Kbyte image information of the newly acquired memory block is transferred to the communication unit (S322), and 0 is set to i and 1 is set to j (S).
323), and proceed to S333. Here, the reason why 0 is set to i is that 2 Kb
ye image information has not been transferred,
Setting 1 to j indicates that similarly, only one ／ Kbyte image information has been transferred.

Mode is ON (S318) and i is 8
If not (S319), the next ８ Kbyte is transferred (S324), 1 is added to j, and the transferred ８ Kb is transferred.
The number of yes is increased (S325), and the process proceeds to S333.

If the mode is not ON (S31)
8) If i is 8 (S326), the memory block currently reserved for transfer has already been transferred, and the next memory block to be transferred is reserved (S32).
7), the released memory block is released (S32).
8).

Next, the image information of the first 2 Kbytes of the newly acquired memory block is transferred to the communication unit (S32).
9) Set 1 to i (S323), and proceed to S333. Here, setting i to 1 indicates that only one 2 Kbyte image information has been transferred to the currently secured memory block.

When the mode is not ON (S31)
8) If i is not 8 (S326), the next 2 Kb
is transferred (S327), 1 is added to i, and the number of transferred 2 Kbytes is increased (S325), and S333 is performed.
Proceed to.

Finally, in S333, it is confirmed whether or not the transfer of one page of the read image information has been completed. If not completed, the process waits for the reception of the next transfer request from the communication unit, and repeats the same processing. Repeat until the transfer for the page is completed.

FIG. 5 is an explanatory diagram showing a state in which the processing programs of the main unit and the communication unit as described above are stored in a storage medium. In other words, this storage medium is divided into a main body storage medium storing a program for controlling the main unit and a communication storage medium storing a program for controlling the communication unit.

At the time of direct transmission, a notification is sent from the direct transmission step (S406) of the main body storage medium to the direct transmission step (S412) of the communication storage medium.
Place a call to the destination. After the line is connected, the reading step (S40
The image is read in 1), and is stored in the memory managed in a predetermined block by the main body memory management step (S402) by the main body memory step.

If a command requesting image transfer is received in the transfer request transmitting step (S404) in the transfer request transmitting step (S407) of the communication storage medium during the accumulation,
In the transfer step, the block is divided into a predetermined number, it is confirmed whether image information of the divided size can be transferred, if possible, transferred, if not possible, further divided into a predetermined number,
Similarly, it is confirmed whether transfer is possible, and if possible, the transfer is made to the communication storage medium (S405).

In the communication storage medium, the received image information is accumulated in the memory managed in the communication memory management step (S409) by the communication memory step (S410). Then, the stored image information is transmitted to the transmission partner terminal in the image transmission step (S411).

Therefore, the effects of the present invention can be easily obtained by reading the program provided on the storage medium as described above into an existing image communication system and executing the above-described processing.

[0050]

As described above, according to the present invention,
In an image communication system composed of a main device and a communication device, image information to be transmitted is stored in a memory block of a predetermined size, the memory block is divided into a predetermined size, and the divided blocks are stored by the divided size. If not, further divide the divided memory into a predetermined number,
If the image information of the further divided size is stored, by transferring the image information by the size, it is possible to minimize the need to unnecessarily extend the communication time in the communication unit at the time of direct transmission. Can be.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram illustrating a configuration example of an image communication system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a transfer path of image data at the time of direct transmission of the system shown in FIG. 1;

FIG. 3 is a flowchart showing an image data transfer operation during direct transmission of the system shown in FIG. 1;

FIG. 4 is a flowchart showing an image data transfer operation during direct transmission of the system shown in FIG. 1;

FIG. 5 is an explanatory diagram showing contents of a storage medium storing a control program in the system shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... 1st CPU, 2 ... 1st ROM, 3 ... 1st RAM, 4 ... Display, 5 ... Keyboard, 6 ... 1st image memory, 7 ... Read control gate array, 8 ... Contact sensor, 9 ... Recording control gate array, DESCRIPTION OF SYMBOLS 10 ... Laser printer, 11 ... 1st encoding device (codec), 12 ... 1st Centronics i / f, 13 ... 2nd CPU, 14 ... 2nd ROM, 15 ... 2nd RAM, 16 ... 2nd Centronics i / f, 17 ... Second image memory, 18 ... Second encoding device (codec), 19 ... Modulator / demodulator, 20 ... Network controller.

Claims (6)

(57) [Claims] 1. An image communication system comprising a main body device and a communication device, wherein the main body device includes a reading unit for reading an image on a document,
A main body memory management unit that divides and manages the memory into blocks of a predetermined size, and a main body memory unit that stores image information read by the reading unit in the memory using the main body memory management unit; Transfer request receiving means for receiving an image information transfer request; and when the image information transfer request is received by the transfer request receiving means, a block of image information managed and stored by the memory management means in the memory means. The communication device includes a transfer unit that divides the communication device into a predetermined number in block units and transfers the communication device to the communication device, and a direct transmission unit that operates the communication device and the main device in synchronization with each page. Transfer request transmitting means for requesting image transfer, receiving means for receiving image information transferred from the main device as a result of the transfer request transmitting means, Communication memory management means for dividing and managing a memory for each block of a predetermined size, communication memory means for storing image information received by the reception means in the memory using the communication memory management means, and communication memory means Image transmission means for transmitting the image information stored in the communication line via a communication line, and direct transmission means for operating the communication device and the main unit in synchronization with each page, further, in the transfer means of the main unit, Determining means for determining whether image information corresponding to the size divided into a predetermined number in block units is stored; and determining that the image information is not stored by the determining means, Transfer control means for further dividing the image information into a predetermined number and transferring the image information. 2. A method for controlling an image communication system comprising a main body device and a communication device, comprising: a reading step for reading an image on a document; and a memory for each block of a predetermined size. A main body memory management step of dividing and managing, a main body memory step of storing image information read in the reading step in a memory using the main body memory management step, and a transfer request for receiving an image information transfer request from the communication device When receiving the image information transfer request in the receiving step and the transfer request receiving step, the memory is managed by the memory management step in the memory, and the blocks of the stored image information are divided into a predetermined number in block units, A transmission step of transferring the communication apparatus and the main body apparatus in synchronization with each other for each page; The control method includes: a transfer request transmitting step of requesting the main unit to transfer a transmission image; a receiving step of receiving image information transferred from the main unit as a result of the transfer request transmitting step; A communication memory management step of dividing and managing each block of size, a communication memory step of storing image information received in the receiving step in a memory using the communication memory management step, and an image information stored in the memory An image transmitting step of transmitting the communication device via a communication line, and a direct transmitting step of operating the communication device and the main unit in synchronization with each page, further, in the transfer step in the main unit,
A judging step of judging whether image information corresponding to the size divided into a predetermined number in block units is stored, and, if the judging means judges that the image information is not stored, A transfer control step of further dividing the image information into a predetermined number and transferring the image information. 3. A computer-readable storage medium storing a program for controlling an image communication system including a main body device and a communication device, wherein: in the main body device, a reading step of reading an image on a document; A main body memory management step of dividing and managing each block of a predetermined size; a main body memory step of storing image information read in the reading step in a memory using the main body memory management step; A transfer request receiving step of receiving a transfer request; and, when an image information transfer request is received in the transfer request receiving step, the blocks of image information managed and stored in the memory by the memory management step in block units. A transfer step of dividing the data into a predetermined number and transferring the data to the communication device; and operating the communication device and the main unit in synchronization with each page. And a direct transmission means for, further, in the transfer step in the main unit,
A judging step of judging whether image information corresponding to the size divided into a predetermined number in block units is stored, and, if the judging means judges that the image information is not stored, And a transfer control step of further dividing the image information into a predetermined number and transferring the divided information, and a program for executing the following. (4) Receive transmission request of transmission image from communication device
And an image communication system for transferring an image to the communication device.
In the main unit, Reading means for reading an image on a document; Book that manages memory by dividing it into blocks of a predetermined size
Body memory management means; The image information read by the reading means is stored in the memory tube.
Memory means for storing the data in the memory using the processing means; Transfer request reception for receiving image information transfer request from communication device
Means; An image information transfer request is received by the transfer request receiving means.
If the memo is managed by the memory management
Block image information blocks stored in
A transfer unit that divides the data into predetermined units and transfers the data to the communication device
When; Synchronize the communication device and the image communication device for each page
Direct transmission means to operate with; In the above transfer means, it is divided into a predetermined number in block units
To determine whether image information for the specified size is stored
Means for determining; If it is determined by the above determination means that the data is not stored,
The image information of the size divided into a predetermined number is further
Transfer control means for dividing and transferring the number; Main body of image communication system characterized by having
Place. (5) A main unit and a transmission image to the main unit.
A communication device comprising a transfer request transmitting unit for requesting transfer;
In the image communication system configured by Reading means for reading an image on a document,
Book that manages memory by dividing it into blocks of a predetermined size
Body memory management means, and an image read by the reading means.
Image information is stored in memory using the memory management unit
Main body memory means to perform image information transfer request from communication device
Transfer request receiving means for receiving Transmission request receiving means
When an image information transfer request is received by the
Is managed and stored by the memory management means.
Image information block is divided into a predetermined number of blocks
Transfer means for transferring the data to the communication device;
Direct sender that synchronizes the operation for each page
And a step, In the above-mentioned transfer means of the above-mentioned main unit,
Image information for the size divided into a predetermined number is stored.
Determination means for determining whether or not If it is determined by the above determination means that the data is not stored,
The image information of the size divided into a predetermined number is further
Transfer control means for dividing and transferring the number; An image communication system comprising: 6. Receive transmission request of transmission image from communication device
Image communication system for transferring an image to the communication device
In the method of controlling the main device, A reading step of reading an image on a document; Book that manages memory by dividing it into blocks of a predetermined size
Body memory management process; The image information read in the reading step
Main memory process to store in memory using re-management process
When; Transfer request reception for receiving image information transfer request from communication device
Process; An image information transfer request is received in the transfer request receiving step.
The memory is managed by the memory management process.
Blocks of stored image information
Transfer step of dividing into a predetermined number and transferring to the communication device
When; Synchronize the communication device and the main unit with each page
Direct transmission process to make; In the transfer step in the main unit,
Image information is accumulated for the size divided into a predetermined number of units.
Judging step of judging whether or not it has been performed; If it is determined by the above determination means that the data is not stored,
The image information of the size divided into a predetermined number is further
A transfer control step of dividing and transferring the number; Main device of image communication system characterized by having
Control method.