JP2001053928A - Apparatus and system for communicating data - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data communication apparatus capable of shortening the communication time of data and surely communicating the data. SOLUTION: The data communication apparatus is provided with a central control part 300, an operating part 109, a reading part 301, a print part 303, an address storage pat 307 for storing the address of the transmission destination, a memory part 309 for storing a control program or transmission/reception data, a communication control part 305 for transmitting/receiving data through an arbitrary line while being connected to plural lines and a data control part 311 for applying prescribed processing to the transmission/reception data. In this case, the data control part 311 encodes data to be transmitted, divides them by a prescribed method later and sends them to a communication control part 305. Besides, a plurality of prescribed encoded data received by the communication control part 305 are synthesized and decoded later. Therefore, the prescribed divided data can be parallel-transmitted or received.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data communication device and a data communication system, and more particularly, to a data communication device and a data communication capable of communicating data through a plurality of communication lines such as an Internet line in addition to a telephone line. About the system.

[0002]

2. Description of the Related Art In recent years, with the development of a communication infrastructure, data communication apparatuses represented by Internet facsimile apparatuses, which can use not only a public telephone line but also a plurality of lines such as an Internet line and a LAN line, have become widespread.
This Internet facsimile apparatus can use a line according to the case, such as performing communication via a vacant Internet line if a telephone line is in use, thereby increasing the reliability of data communication. It was possible.

[0003] However, even in such a data communication apparatus in which a plurality of lines can be used, only one line is used for data transmission to a certain destination, and the other free lines are not used. . Therefore, the same communication time as in the related art using only a single wire is required.

In consideration of such a situation, Japanese Patent Application Laid-Open No.
No. 304170 discloses a technique related to data communication in which data is transmitted in parallel using a plurality of lines in order to reduce communication time. That is, the communication time is reduced by dividing a large amount of document data into pages and transmitting the divided page data in parallel through a plurality of lines.

[0005]

However, in the data communication apparatus disclosed in Japanese Patent Laid-Open No. Hei 10-304170, since data is transmitted in units of pages for each line, if data cannot be received from one line, , The data of the entire page cannot be received. Therefore, a page that cannot be received cannot be restored, and only data corresponding to that page is lost. This has been a major problem in terms of the reliability of data transmission.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a data communication apparatus and a data communication system capable of shortening data communication time and reliably performing data communication. To provide.

[0007]

According to an aspect of the present invention, there is provided a data communication apparatus capable of performing data communication through M (M ≧ 2) lines. Encoding data to be encoded based on an encoding unit to be encoded and a result encoded by the encoding unit.
An encoded data dividing unit for dividing the encoded data into (N ≦ M) encoded data, and dividing each of the divided N encoded data by M
A data parallel transmission unit for transmitting data to the same destination in parallel using N different lines among the lines.

According to the present invention, the coded data is divided into N and transmitted in parallel through N different lines, so that the communication time can be reduced. In addition, since the data is divided so that the original data can be restored to some extent from the data of another line even if the data of one line is not received based on the encoded result, In addition, it is possible to provide a data communication device capable of reliably performing data communication.

Preferably, the data communication device includes a destination specifying unit for specifying a destination, a storage unit for storing a plurality of addresses of the destination, and N data units corresponding to the destination specified by the storage unit. An acquisition unit for acquiring an address is further provided, and the data parallel transmission unit transmits the divided N encoded data to the acquired N addresses.

Thus, data is transmitted to N addresses corresponding to N lines only by the user designating the transmission destination. Therefore, high-speed data transmission can be easily performed with a simple operation.

Preferably, in the data communication apparatus, the coded data division unit divides the data into 2 (N = 2) coded data.

According to this, since the number of divisions is two and the division of the coded data can be easily performed, it is possible to more reliably perform high-speed data transmission.

Still preferably, in the data communication device, the encoding unit encodes the data according to the frequency component of the data, and the encoded data division unit converts the encoded data into the encoded data of the high frequency component. It is characterized by being divided into encoded data of frequency components.

According to this, the encoded data is divided into high-frequency components and low-frequency components, so that the data can be divided more easily.

According to another aspect of the present invention, M (M
.Gtoreq.2) A data communication apparatus capable of performing data communication through the number of lines, when predetermined N (N.ltoreq.M) encoded data are received in parallel from different N lines, respectively. , An encoded data synthesizing unit that synthesizes the received N pieces of encoded data, and a decoding unit that decodes the synthesized encoded data.

According to the present invention, since N data are received in parallel from different lines, the time required for data communication can be reduced. The N data are divided based on the result of encoding so that the original data can be restored to some extent from the data of another line even if the data of one line is not received. Therefore, data can be easily restored. Therefore, it is possible to provide a data communication device capable of performing reliable data reception.

Preferably, when one of the predetermined N encoded data is not received, the data communication apparatus interpolates the remaining (N-1) encoded data. And a supplementary data generating means for producing supplementary data of one piece of encoded data which has not been received, and wherein the encoded data synthesizing means comprises the supplementary data generated and the remaining (N-1) codes And coded data.

According to this, even if one piece of encoded data is not received, the supplementary data is easily generated, so that a situation in which the data cannot be reproduced can be avoided.
Therefore, it is possible to provide a data communication device that can reliably receive data.

Further, according to another aspect of the present invention, a data communication system includes a coded data division unit for dividing coded data based on a decoded result and a parallel transmission unit. And a data communication device according to any one of the above, comprising a decoding unit and an encoded data combining unit.

According to the present invention, N data divided on the basis of the encoded result are transmitted and received in parallel via different lines. Therefore, high-speed data communication can be performed, and the original data can be easily restored. Therefore, it is possible to provide a data communication system capable of performing high-speed and reliable data communication.

According to another aspect of the present invention, M (M
.Gtoreq.2) A data communication device capable of performing data communication through the number of lines includes a data dividing unit for dividing data into N (N.ltoreq.M) data based on the contents of the data, N encoding units for encoding each of the N pieces of data, and each of the N pieces of encoded data,
A data parallel transmission unit that transmits data to the same destination in parallel using N different lines out of the M lines.

According to the present invention, the coded data is divided into N and transmitted in parallel through N different lines, so that the communication time can be reduced. Also, based on the content of the data to be transmitted, the data is divided so that the original data can be restored to some extent from the data on another line even if the data on one line is not received. In addition, it is possible to provide a data communication device capable of reliably performing data communication.

Preferably, the data communication device includes a destination specifying unit for specifying a destination, a storage unit for storing a plurality of addresses of the destination, and N storage units corresponding to the specified destination from the storage unit. And an acquisition unit that acquires the address of the divided N encoded data. The data parallel transmission unit transmits the divided N encoded data to the acquired N addresses.

Thus, data is transmitted to N addresses corresponding to N lines only by the user designating the transmission destination. Therefore, high-speed data transmission can be easily performed with a simple operation.

Preferably, in the data communication apparatus, the data division unit divides the data into 2 (N = 2) data.

According to this, since the number of divisions is two and the division of the encoded data can be easily performed, high-speed data transmission can be performed more reliably.

Preferably, the data communication device further includes an area determining unit for determining an area of data,
The data dividing unit divides based on a region determination result by the region determining unit.

Thus, the data is divided on the basis of the result of the area determination, so that division and encoding suitable for each area can be performed, and optimum and higher-speed communication can be performed.

According to another aspect of the present invention, M (M
.Gtoreq.2) A data communication apparatus capable of performing data communication through the number of lines, when predetermined N (N.ltoreq.M) encoded data are received in parallel from different N lines, respectively. , N decoding units for decoding the received N encoded data, and a decoded data synthesizing unit for synthesizing the N decoded data.

According to the present invention, N encoded data are received in parallel from different lines, so that the time required for data communication can be reduced. The N coded data are divided based on the content of the image data so that the original data can be restored to some extent from the data of another line even if the data of one line is not received. Therefore, data can be easily restored. Therefore, it is possible to provide a data communication device capable of performing reliable data reception.

Preferably, the data communication device interpolates the remaining (N-1) encoded data when one of the predetermined N encoded data is not received. And a supplementary data generation unit for producing supplementary data of the one piece of encoded data that has not been received, wherein the N decoding units are configured to generate the supplementary data and the remaining (N-1) Are respectively decoded.

According to this, even if one piece of encoded data is not received, the supplementary data is easily generated, so that a situation in which the data cannot be reproduced can be avoided.
Therefore, it is possible to provide a data communication device that can reliably receive data.

Further, according to another aspect of the present invention, the data communication system according to any one of the above, comprising a data division unit for dividing data based on data contents and a data parallel transmission unit. And a data communication device according to any one of the above, comprising a decoding unit and a decoded data synthesizing unit.

According to the present invention, N pieces of data divided based on the contents of data are transmitted and received in parallel via different lines. Therefore, high-speed data communication can be performed, and the original data can be easily restored. Therefore, it is possible to provide a data communication system capable of performing high-speed and reliable data communication.

[0035]

Next, embodiments of the present invention will be described with reference to the drawings. [First Embodiment] FIG. 1 is a diagram showing an appearance of a data communication apparatus 1 according to a first embodiment of the present invention. Referring to FIG. 1, data communication device 1 includes a document feed tray 101 for supplying a document image for transmission, and a document discharge tray 103 for discharging a document image after reading.
And a recording paper supply tray 107 for supplying recording paper for printing out received data, a recording paper discharge tray 105 for discharging printed out recording paper, and operating the data communication device 1. And an operation panel 109.

FIG. 2 is a diagram showing an example in which the data communication apparatuses 1 according to the first embodiment of the present invention are mutually connected to form a data communication system. For the sake of convenience in distinguishing the two, the data communication device on the left is referred to as “data communication device 1”, and the data communication device on the right is referred to as “data communication device 2”.

Referring to FIG. 2, data communication device 1 (FA
X1) and the data communication device 2 (FAX2) are connected by a public telephone line and an Internet line via a LAN, and data communication can be performed between these two lines. ing. Here, a case where data is transmitted from the data communication device 2 to the data communication device 1 is considered.

As shown in the lower half of FIG. 2, "FAX1" for identifying the data communication device 1 is stored in the memory of the data communication device 2 in association with the "FAX1". Phone number "XXX-X"
XX-AAAAA "and a second address, Internet address" fax1. foo. xx. zzz "is stored.

Therefore, the data communication device 2 divides the data to be transmitted into two parts, transmission data 1 and transmission data 2, and transmits the transmission data 1 to the first address via a public telephone line, The transmission data 2 is transmitted in parallel to the second address via the Internet line.

FIG. 3 is a block diagram schematically showing an overall configuration of data communication device 1 according to the embodiment of the present invention. The data communication device 1 has a central control unit 300 for controlling the entire device, an operation unit (operation panel) 109 for designating a transmission destination, setting various modes, and the like, and for reading a document image at a predetermined resolution. , A communication control unit 305 for transmitting and receiving data, a printing unit 303 for outputting data received by the communication control unit 305 at a predetermined resolution, and a transmission registered with a one-touch dial key or the like. An address storage unit 307 for storing a destination (destination) address (Internet address, telephone number, etc.) and a work area of the central control unit 300 which stores a control program, received data, data to be transmitted, and the like. 309 for transmitting data or data for converting received data into a predetermined format And a control unit 311.

Here, the communication control unit 305 is connected to a public telephone line and an Internet line via a LAN, and selects one or both lines as appropriate depending on the case. Data transmission / reception is performed using the selected line. Therefore, when transmitting and receiving the divided data in parallel, both lines are used.

FIG. 4 is a functional block diagram for explaining the operation of the data control unit 311 in FIG. Referring to FIG. 4, data control unit 311 includes an encoding unit 401 for encoding image data read by reading unit 301 according to a frequency component, and data encoded by encoding unit 401. And an encoded data division unit 403 for dividing the encoded data into high frequency component encoded data and low frequency component encoded data. Therefore, the encoded data is sent to the communication control unit 305 after being appropriately divided. Then, from here, each encoded data is transmitted in parallel to the destination.

The data control section 311 further includes an encoded data synthesizing section 405 for synthesizing predetermined data received in parallel, and an encoded data synthesized by the encoded data synthesizing section 405 into one. And a decoding unit 407 for decoding. Therefore, when predetermined data that is appropriately divided is received in parallel, it is possible to restore the original data by combining and decoding the divided data.

Next, FIG. 5 is a flowchart showing a flow of processing when the data communication device 1 according to the present embodiment performs parallel transmission of data. Here, for the sake of concreteness, the flow of the transmission process of the data communication device 2 when transmitting data from the data communication device 2 to the data communication device 1 shown in FIG. 2 is shown.

Referring to FIG. 5, first, in step S501, the data communication device 2 is operated by the user through the operation unit 1 by the user.
09, etc., the data communication device 1 as the transmission destination is designated (here, “FAX1” for identifying the data communication device 1 is input).

Then, in step S502, a search in the address storage unit 307 is performed to obtain a destination address corresponding to the specified transmission destination. Then, two address data of address 1 “XXX-XXX-AAAAA” and address 2 “fax1.foo.xx.zzz” are obtained.

Next, in step S503, encoding processing of image data to be transmitted is performed. Here, for example, an encoding process based on the frequency of the image data is performed. Then, in step S504,
The encoded data is transmitted data 1 and transmitted data 2
Is divided into two. In this case, the low frequency component is set as the transmission data 1 and the high frequency component is set as the transmission data 2 so as to be divided.

Finally, in step S505, the data divided in step S504 is
Data parallel transmission processing of transmitting data to the data communication device 1 is performed. That is, the transmission data 1 as the low frequency component is transmitted to the address 1 through the telephone line, and in parallel with this, the transmission data 2 as the high frequency component is transmitted to the address 2
It is transmitted to the Internet via the Internet line (+ LAN).

According to the above transmission processing, since data can be appropriately divided and transmitted in parallel, the communication time can be reduced.

FIG. 6 is a flowchart showing the flow of processing when data communication device 1 in the present embodiment performs parallel data reception. Here, for the sake of concreteness, the flow of the receiving process of the data communication device 1 when the data communication device 1 receives data from the data communication device 2 shown in FIG. 2 will be described.

Referring to FIG. 6, first, in steps S601 and S602, data communication apparatus 1 performs a parallel reception process of the divided data transmitted from data communication apparatus 2. That is, step S6
In step 01, transmission data 1 transmitted through the telephone line to address 1 is received, and in parallel with this, transmission data 2 transmitted through the Internet line to address 2 is received in step S602.

Next, in step S603, it is determined whether the divided data has not been received in either step S601 or step S602. If both of them can be normally received in parallel, in step S605, the encoded data combining unit 405 combines the received data (transmission data 1 and transmission data 2) into one.

Finally, in step S 606, the encoded data combined in step S 605 is decoded by the decoding unit 407 collectively.

Therefore, in this case, as shown in FIG. 7, the transmission image (a) in the data communication device 2 on the transmission side is transmitted.
Is transmitted as received data in the data communication device 1 on the receiving side, so that the transmitted image (a) is restored as the received image (b) without deterioration.

On the other hand, if it is determined in step S603 that one of the lines could not be communicated due to a failure or the like, then in step S604, a process of compensating for the unreceivable data is performed. That is, by interpolating the received data, for example, the transmission data 1, interpolation data for the unreceivable data, for example, the transmission data 2, is generated.

The received data and the compensated data are combined into one by the combining process in step S605. In step S606, the combined encoded data is collectively processed by the decoding unit 407. Decrypted.

FIG. 8 illustrates an image obtained when one of the divided data transmitted from the data communication device 2 cannot be received in step S601 or step S602 in FIG. FIG.

As shown in the figure, for example, address 1
Transmission data 1 (data of low frequency components) transmitted through the telephone line to the address 2 is normally received, and transmission data 2 transmitted through the Internet line to the address 2
When (high-frequency component data) is not received, the transmission image data obtained for the transmission image (a) in the transmission-side data communication device 2 is obtained as it is in the reception-side data communication device 1 as received data. is not.

However, one of the received image data is missing
Since the image is deteriorated but the approximate information is transmitted (received image (c)), it is possible to generate supplementary data of the data that could not be easily received from the data that could be received.
Therefore, the transmission image can be restored to some extent using the supplementary generation data.

According to the above processing, when appropriately divided data is received in parallel, the original data can be easily restored, and even if any one of the data cannot be received, the received data can be received. The original data can be restored to some extent on the basis of the generated data. Therefore, high-speed and reliable data communication can be performed.

[Second Embodiment] Next, a data communication device 3 according to a second embodiment of the present invention will be described. The external configuration of the data communication device 3 is the same as that of the data communication device 1 shown in FIG. 1, and the overall configuration is almost the same as that of the data communication device 1 shown in FIG. However, the processing operation of the data control unit 311 ("312" in the data communication device 3) shown in FIG. 3 is slightly different.

FIG. 9 is a functional block diagram for explaining the operation of the data control unit 312 of the data communication device 3 according to the second embodiment of the present invention. Referring to FIG. 9, data control unit 312 has determined that image data read by reading unit 301 is a region determination unit 901 for determining regions such as a character region, a photograph region, and a graphic region. A data division unit 902 that divides image data based on a region, and an encoding unit 903 that encodes the data divided by the data division unit 902 by a suitable method.
And Therefore, the data appropriately divided based on the area determination result is encoded and then transmitted by the communication control unit 305 to the transmission destination in parallel.

The data control unit 312 further includes a decoding unit 905 for decoding predetermined coded data received in parallel, and the data respectively decoded by the decoding unit 905 into one. And a decoded data synthesizing unit 907 for synthesizing. Therefore, when predetermined data that has been appropriately divided is received in parallel, the original data can be restored by decoding and combining the divided data.

FIG. 10 is a diagram showing an example in which the data communication devices 3 according to the second embodiment of the present invention are mutually connected to form a data communication system. For the sake of convenience in distinguishing the two, the data communication device on the left is referred to as “data communication device 3”, and the data communication device on the right is referred to as “data communication device 4”.

Referring to FIG. 10, data communication device 3 (F
The AX 3) and the data communication device 4 (FAX 4) can mutually communicate data using a public telephone line and an Internet line via a LAN, as in the case shown in FIG. It is possible. Here, a case where data is transmitted from the data communication device 4 to the data communication device 3 is considered.

As shown in the lower half of FIG.
In the memory of the data communication device 4, "FAX3" for identifying the data communication device 3 is associated with a telephone number "XX" which is the first address of the data communication device 3.
X-XXX-BBBB "and the Internet address" fax3. foo. xx. zz
z "is stored.

Therefore, the data communication device 4 divides the data to be transmitted into the first transmission data and the second transmission data and divides the data into the first address via the public telephone line to the first address. Data and second transmission data are transmitted in parallel to the second address via the LAN + Internet line.

Next, FIG. 11 is a flowchart showing the flow of processing when the data communication device 3 according to the present embodiment transmits data in parallel. Here, in order to make the description concrete, the flow of the transmission process of the data communication device 4 when transmitting data from the data communication device 4 to the data communication device 3 shown in FIG. 10 is shown.

Referring to FIG. 11, data communication device 4 includes:
In step S111, the destination data communication device 3 is specified (here, “FAX3” for identifying the data communication device 3 is input). In step S112, the address storage unit 307 is searched and specified. Address (address 1 "X) corresponding to the destination
XX-XXX-BBBB "and address 2" fax3. f
oo. xx. zzz ″) is obtained.

Next, in step S113, the data to be transmitted is divided into the first transmission data and the second transmission data based on the determination result by the area determination unit 901. For example, the area determination unit 901 determines a character area, a photograph area, a graphic area, and the like, and uses a division method suitable for each of the determined areas. Therefore, for example, in a photographic area, data of 8 bits per pixel is divided into upper 4 bits and lower 4 bits, and in a character area, each pixel data is divided into even-numbered data and odd-numbered data.

Subsequently, in step S114, encoding processing is performed on each piece of transmission data divided in step S113. Therefore, in each area, the first transmission data is encoded into the first encoded data, and the second transmission data is encoded into the second encoded data.

Then, in step S115, a data parallel transmission process of transmitting the respective data encoded in step S114 to the data communication device 3 in parallel is performed. That is, the first encoded data is transmitted to the address 1 through the telephone line, and in parallel, the second encoded data is transmitted to the address 2 via the Internet line (+
LAN).

As described above, since the encoding process and the like are further reduced by appropriately dividing the data, higher-speed communication can be performed.

FIG. 12 is a flowchart showing the flow of processing when data communication device 3 in this embodiment performs parallel data reception. Here, for the sake of concreteness, the flow of the receiving process of the data communication device 3 when the data communication device 3 receives data from the data communication device 4 shown in FIG. 10 will be described.

Referring to FIG. 12, data communication device 3 includes:
First, in steps S121 and S122, parallel reception processing of the divided data transmitted from the data communication device 4 is performed. That is, step S
At 121, the first coded data sent through the telephone line to address 1 is received, and in parallel with this,
In step S122, the second encoded data sent via the Internet line to address 2 is received.

Next, in step S123, it is determined whether the divided data has not been received in either step S121 or step S122. If both of them can be normally received in parallel, in step S125, the decoding unit 905 decodes the respective encoded data. That is, the first encoded data is decoded as first decoded data, and the second encoded data is decoded as second decoded data.

Then, in step S126, the first
And the second decoded data are combined into one to restore the original image data.

On the other hand, if it is determined in step S123 that one of the lines could not be communicated due to a failure or the like, then in step S124, a process of compensating for the unreceivable data is performed. In other words, by interpolating the received data, for example, the first coded data, interpolation data for the unreceived data, for example, the second coded data is generated.

Then, in step S125, the received encoded data and the compensated data are respectively decoded, and in step S126, the decoded data are combined into one by the decoded data combining unit 907. Is done.

If the appropriately divided data is received in parallel by the above processing, the original data can be restored more quickly and easily by performing appropriate decoding. Even if any one of the data cannot be received, the original data can be restored to some extent based on the received data, so that high-speed and reliable data communication can be performed.

In the data communication apparatuses 1 and 3 in the embodiment shown this time, the number of data to be transmitted (or received) in parallel is two, but the number is not limited to this, and may be changed depending on the case. It may be divided into three or more. Increasing the number of divisions enables higher-speed communication.

In FIG. 5 and the like showing the transmission process of the data communication apparatus 1 according to the first embodiment of the present invention, the encoding is performed according to the frequency component. However, the present invention is not limited to this. May be performed.

In FIG. 11 and the like showing the transmission process of the data communication device 3 according to the second embodiment of the present invention, the area such as characters, pictures, figures, etc. is determined from the original image data by the area determination section. However, other areas may be determined. Furthermore, the optimal division method based on each determined area is not limited to the method shown here.

The embodiments disclosed this time are illustrative in all respects, and should not be construed as limiting. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an appearance of a data communication device 1 according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an example in which the data communication devices 1 according to the first embodiment of the present invention are mutually connected to form a data communication system.

FIG. 3 is a block diagram schematically illustrating an overall configuration of the data communication device 1 according to the first embodiment of the present invention.

FIG. 4 is a functional block diagram for explaining an operation of a data control unit 311 in FIG. 3;

FIG. 5 is a flowchart showing a processing flow when the data communication device 1 according to the first embodiment of the present invention performs parallel transmission of data.

FIG. 6 is a flowchart showing a processing flow when the data communication device 1 according to the first embodiment of the present invention performs parallel data reception.

FIG. 7 shows steps S601 and S6 in FIG.
FIG. 2 is a diagram for explaining an image obtained when the divided data transmitted from the data communication device 2 can be normally received in parallel in 02.

FIG. 8 shows step S601 or step S6 in FIG.
FIG. 2 is a diagram for explaining an image obtained when any one of the divided data transmitted from the data communication device 2 cannot be received in 02.

FIG. 9 is a functional block diagram for explaining an operation of a data control unit 312 of the data communication device 3 according to the second embodiment of the present invention.

FIG. 10 is a diagram illustrating an example in which the data communication devices 3 according to the second embodiment of the present invention are mutually connected and a data communication system is constructed.

FIG. 11 is a flowchart illustrating a flow of processing when the data communication device 3 performs parallel transmission of data according to the second embodiment of the present invention.

FIG. 12 is a flowchart showing a flow of processing when the data communication device 3 according to the second embodiment of the present invention performs parallel data reception.

[Explanation of symbols]

1 data communication device, 101 document feed tray, 103
Document output tray, 105 Recording paper output tray, 10
7 recording paper supply tray, 109 operation unit (operation panel), 300 central control unit, 301 reading unit, 303
Printing unit, 305 communication control unit, 307 address storage unit, 309 memory unit, 311 data control unit, 40
1 Encoding unit, 403 Encoded data division unit, 405
Encoded data synthesis unit, 407 decoding unit.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5C062 AA29 AB38 AB40 AC07 AC24 AC31 AC38 AE14 BD09 5C075 AB90 CA90 CD07 CD25 FF02 FF04 5K034 AA01 AA05 CC01 CC02 CC04 DD01 EE07 EE10 EE11 EE12 EE13 HH01 HH02 KKH MM05 NN03 NN06 QQ07 TT04 TT05 VV05

Claims (14)

[Claims] 1. A data communication device capable of performing data communication through M (M ≧ 2) lines, comprising: encoding means for encoding data; and a result encoded by the encoding means. Coded data dividing means for dividing the coded data into N (N ≦ M) coded data based on
A data communication device comprising: data parallel transmission means for transmitting data to the same destination in parallel using N different lines among the lines. 2. A destination designation unit for designating a destination, a storage unit for storing a plurality of addresses of a destination, and an N corresponding to the designated destination from the storage unit.
And acquiring means for acquiring the plurality of addresses, wherein the data parallel transmitting means transmits the divided N encoded data to the acquired N addresses, respectively. A data communication device as described. 3. The coded data dividing means according to claim 1, wherein 2 (N =
3. The data communication device according to claim 1, wherein the data communication device is divided into 2) pieces of encoded data. 4. The encoding means encodes data according to a frequency component of the data, and the encoded data dividing means encodes the encoded data into encoded data of a high frequency component and encoded data of a low frequency component. The data communication device according to claim 3, wherein the data communication device is divided into: 5. A data communication device capable of performing data communication through M (M ≧ 2) lines, wherein predetermined N (N ≦ M) coded data are transmitted in different N And coded data combining means for combining the received N pieces of coded data when received in parallel from the line, and decoding means for decoding the combined coded data. Also, a data communication device. 6. One of said predetermined N encoded data
Data is generated by interpolating the remaining (N-1) pieces of coded data when no pieces of coded data are received, so as to generate supplementary data of the one piece of non-received coded data. 6. The data communication apparatus according to claim 5, further comprising: a means for combining the generated supplementary data and the remaining (N-1) pieces of coded data. 7. The data communication device according to claim 1, comprising: the data communication device according to claim 5;
Data communication system. 8. A data communication device capable of performing data communication through M (M ≧ 2) lines, wherein said data is converted into N (N ≦ M) data based on data contents. Data dividing means for dividing; N encoding means for encoding each of the divided N data; and N encoding data which is encoded by each of the M lines Data parallel transmission means for transmitting to the same destination in parallel using N different lines,
Data communication device. 9. A destination designation unit for designating a destination, a storage unit for storing a plurality of addresses of the destination, and a N corresponding to the designated destination from the storage unit.
The acquisition means for acquiring the plurality of addresses, wherein the data parallel transmission means transmits the divided N encoded data to the acquired N addresses, respectively. A data communication device as described. 10. The data dividing means is 2 (N = 2).
The data communication device according to claim 8, wherein the data communication device is divided into pieces of data. 11. The data according to claim 8, further comprising area determination means for determining an area of data, wherein said data division means divides based on an area determination result by said area determination means. Communication device. 12. A data communication device capable of performing data communication through M (M ≧ 2) lines, wherein predetermined N (N ≦ M) coded data are transmitted in different N N pieces of decoding means for decoding the received N pieces of encoded data when they are received in parallel from one another, and decoded data for combining the decoded N pieces of data. A data communication device comprising: a synthesizing unit. 13. When one encoded data of the predetermined N encoded data is not received, the received (N-1) encoded data is interpolated by interpolating the remaining (N-1) encoded data. The apparatus further comprises supplementary data generating means for producing supplementary data of one piece of encoded data that has not been provided, wherein the N decoding means comprises: the generated supplementary data and the remaining (N-1) encodings. The data communication device according to claim 12, wherein the data communication device decodes the data and the data, respectively. 14. A data communication system comprising: the data communication device according to claim 8; and the data communication device according to claim 12 or 13.