JP2007047980A - Data transfer device, operation display device using the same and image formation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a data transfer device and an operation display device using it and an image formation apparatus for generating a plurality of rectangular image data at once in a data storage part at the destination of transfer, and for reducing the storage capacity of the data storage part at the origin of transfer. <P>SOLUTION: This data transfer device for transferring image data stored in a first data storing means to a second data storage means is provided with a rectangle setting means for setting four corners to be read from the first data storage means, spaces among the four corners, the read start address and read data extent of the rectangular image data of each rectangle at a center surrounded by the four corners and the spaces among the four corners, four corners written in the second data storing means, spaces among the four corners and the write start address and write data extent of the rectangular image data of each rectangle at a center surrounded by the four corners and the spaces among the four corners and a size changing means for repeating image data read from the first data storage means when the read data extent of each rectangle is different from the size of the write data extent, and for generating the write address of the second data storage means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a data transfer apparatus, and an operation display apparatus and an image forming apparatus using the same, and more particularly, a data transfer apparatus that transfers image data stored in a first data storage means to a second data storage means. The present invention also relates to an operation display device and an image forming apparatus using the same.

  There is a data transfer device that takes out one piece of designated data from a data storage device and transfers it to the data storage device. In such a data transfer device, it is widely used that image data taken out from the data storage device is transferred to the data storage device after editing such as expansion, repetition, and data replacement. As described above, when image data taken out from the data storage device is edited and transferred, it is desired that editing can be performed more easily and desired data can be transferred.

  Patent Document 1 discloses that when data is transferred from a first memory array to a second memory array, a data start address and a data transfer end address of the first memory array, a second memory array data transfer end address, or a second memory It is described that the transfer start address and transfer end address of the array are stored, a necessary address is calculated from them, and data transfer is performed.

  Further, Patent Document 2 has a repetitive output function of calculating a transfer destination image data address when performing image transfer, and returning to the image data start address when transfer to the image data end address is completed. It is described that it has means for bit-extending image data and transferring the image data to a transfer destination, and the image data to be stored can be reduced.

Japanese Patent Application Laid-Open No. 2004-228561 describes that when data transfer is performed, the data format is converted and transferred to determine whether the image can be transferred to the transfer destination area.
JP2003-015948A Japanese Patent Application Laid-Open No. 08-237695 JP 2004-343157 A

  In the apparatus described in Patent Document 1, although a circuit is simplified by sharing a register for storing address data necessary for data transfer, there are no simultaneous image data transfer functions or image data editing functions during transfer. There was a problem.

  Further, in the apparatus described in Patent Document 2, when image data is created, only image data of a single image can be transferred at a time, and a number of image data simultaneous transfer functions and image data editing at the time of transfer can be performed. There was a problem that there was no function.

  Further, the apparatus described in Patent Document 3 has a problem that there is no countermeasure that can reduce the capacity of the image storage unit, and one data cannot be created from a plurality of data during data transfer.

  The present invention has been made in view of the above points, and a data transfer device capable of generating a plurality of rectangular image data at once in a transfer destination data storage unit and reducing the storage capacity of the transfer source data storage unit, and a data transfer device therefor It is an object of the present invention to provide an operation display device and an image forming apparatus used.

  In order to solve the above problems, a data transfer apparatus according to the present invention is a data transfer apparatus for transferring image data stored in a first data storage means to a second data storage means, wherein the first data Read from the storage means, between the four corners, the read start address and the read data range of each rectangular image data of the center rectangle enclosed between the four corners and the four corners, and the second data storage means Rectangle setting means for setting the writing start address and the writing data range of the rectangular image data of each of the rectangular images in the center surrounded by the four corners to be written, between the four corners, and between the four corners and the four corners, When the read data range and the write data range of each rectangle are different, the image data read from the first data storage unit is repeated, and the write address of the second data storage unit is generated. Having a size change means for.

  In the present invention, the writing start address and the writing data range of each rectangular image data of each rectangle are set, and when the size of the reading data range and the writing data range of each rectangle is different, the reading from the first data storage means is performed. By repeating the image data and generating the write address of the second data storage means, a plurality of rectangular image data can be generated at a time in the transfer destination second data storage unit, and the transfer source first data The storage capacity of the storage unit can be reduced.

  The operation display device of the present invention is configured using the data transfer device described above.

  Further, an image forming apparatus of the present invention has the above operation display device.

  According to the present invention, a plurality of rectangular image data can be generated at a time in the transfer destination data storage unit, and the storage capacity of the transfer source data storage unit can be reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Configuration of data transfer device>
FIG. 1 shows a block diagram of an embodiment of a data transfer apparatus of the present invention. The data transfer apparatus 100 shown in the figure includes a data transfer unit 101, data storage apparatuses 102 and 103, a system control apparatus 104, a read address designation apparatus 105, a read size designation apparatus 106, a write address designation apparatus 107, and a write size designation. It comprises a device 108, a data repetition device 109, a data editing device 110, an address calculation device 111, and a rectangular data transfer device 112.

<System operation of data transfer device>
The data storage device 102 stores image data such as images, characters or character strings, and graphics. The data transfer unit 101 designates the reading start address of the data range to be read in the data storage device 102 storing the image data by the reading address designating device 105 and the reading data range by the reading size designating device 106. specify.

  The data transfer unit 101 transfers image data in the data range specified by the reading address specifying device 105 and the reading size specifying device 106 to the data editing device 110, and performs data conversion processing such as bit expansion in the data editing device 110. In order to transfer the image data edited by the data editing device 110 to the data storage device 103, the writing start address of the data storage device 103 is specified by the write address specifying device 107 and written by the write size specifying device 108. Specify the data range.

  The data transfer unit 101 transfers the image data edited by the data editing device 110 to the write data range of the data storage device 103 specified by the write address specifying device 107 and the write size specifying device 108. The system controller 104 performs the above operation control.

  In the data transfer process, if the read data range and the write data range are different, the data size specified by the read size specifying device 106 and the data size specified by the write size specifying device 108 are sent to the address calculation device 111. The arithmetic processing is performed to generate the write address of the data storage device 103. If the write data size is smaller than the read data size, the read image data is thinned out to transfer the read image data up to the write data size to the data storage device 103, and the write data size is larger than the read data size. For example, the read image data is repeatedly transferred to the data storage device 103 by the data repeater 109 so as to fit in the write data range.

  When the data editing apparatus 110 is instructed to extend the bit at the time of data transfer, the data is read from the data storage apparatus 102 with respect to the image data specified and read by the reading address specifying apparatus 105 and the reading size specifying apparatus 106. The editing device 110 performs bit expansion and transfers the data to the data storage device 103.

  When the data repeater 109 repeatedly performs the transfer, the read image data can be stored in the internal cache 113 without repeatedly reading the image data in the data storage device 102. Further, when it is desired to fill the designated range with the same data, the image data read from the data storage device 102 is not read, and the filled image data designated by the painting device 114 is repeatedly transferred to the designated range of the data storage device 103.

  Further, when creating rectangular data, the rectangular data transfer device 112 provided in the data transfer unit 101 sets the read start address and read data range of the rectangular image data in the data storage device 102. Further, in order to synthesize the rectangular image data set to be read, the writing start address and the writing data range of each rectangular image data 103 in the data storage device 103 are set in the rectangular data transfer device 112. After this writing setting, the data transfer unit 101 can transfer each rectangular image data to the data storage device 103 and transfer each rectangular image data at a time to generate a plurality of rectangular image data at a time. .

  As described above, when data is transferred from the data storage device 102 to the data storage device 103, the reading start address and the read data range are set in order to specify an arbitrary data range from the data storage device 102. In order to designate a range in which data is written, a write start address and a write data range are set, and by automatically controlling the address at the time of data transfer, data can be repeated or cut and transferred.

  Here, the data storage device 102 stores rectangular image data for each of the upper left, upper, upper right, left, center, right, lower left, lower, and lower right shown in FIG. The rectangular data transfer device 112 provided in the data transfer unit 101 has the rectangular image data transfer settings for the upper left, upper, upper right, left, center, right, lower left, lower and lower right shown in FIG. And can set the read start address and read data range of each rectangular position in the data storage device 102, and the write start address and write data range of each rectangular position in the data storage device 103. All setting processes can be performed.

  Further, when the rectangular image data at each position is transferred, it is repeatedly transferred using the data repeating device 109, and rectangular image data of an arbitrary size can be created in the data storage device 103 as shown in FIG.

  When creating image data for display with a substantially rectangular shape such as button data for operation input, the rectangular image data is divided into four corners (upper left, upper right, lower left, lower right) and between the four corners (upper, left, right, lower). ) And classify them into a total of nine places in the center and store them in the storage device 102. When transferring to the storage device 103, the four corners (upper, left, right, and lower) are characteristic and remain as they are, and the image data is repeated only between the four corners (upper, left, right, and lower) and the center. Thus, display image data having a large size of the storage device 103 shown in FIG. 3 can be easily created from a small amount of image data in the storage device 102 shown in FIG. In FIG. 3, the upper, left, center, right, and lower rectangular image data are enlarged so as not to overlap each other by repeated transfer.

  As described above, the rectangular data transfer device 112 that can perform the rectangular data creation processing is provided, and the setting portion has the rectangular image data transfer setting unit of the upper left, upper, upper right, left, center, right, lower left, lower, lower right. This improves the degree of freedom to make any size, improves the work efficiency by setting and transferring a plurality of rectangular image data at once, reduces setting errors, and reduces the data storage capacity of the data storage device 102. can do.

<First Embodiment of Rectangle Transfer Processing>
FIG. 4 shows a flowchart of the first embodiment of the rectangular transfer process. In the figure, rectangular image data transfer setting is started in step S1. In steps S2 and S3, the rectangular data transfer device 112 sets a reading start address and a reading data range of the rectangular image data in the data storage device 102. In steps S4 and S5, the rectangular data transfer device 112 sets a write start address and a write data range in the data storage device 103.

  Thereafter, it is determined whether or not the start address and data range setting of all the rectangular image data required in step S6 are completed. If not completed, the process proceeds to step S2 to repeat steps S2 to S6. If completed, the process proceeds to step S7, and the transfer of the rectangular image data to the data storage device 103 is started.

<Second Embodiment of Rectangle Transfer Processing>
FIG. 5 shows a flowchart of the second embodiment of the rectangular transfer process. In the figure, rectangular image data transfer setting is started in step S11. In steps S12 and S13, the rectangular data transfer device 112 sets the reading start address and the reading data range of the rectangular image data in the data storage device 102. In steps S14 and S15, the rectangular data transfer device 112 sets a write start address and a write data range in the data storage device 103.

  Thereafter, it is determined whether or not the start address and data range setting of all the rectangular image data required in step S16 are completed. If not completed, the process proceeds to step S12 and steps S12 to S16 are repeated.

  If completed, the process proceeds to step S17 to determine whether or not the rectangular image data transfer setting is normal. Here, when the rectangular image data of each of the upper left, upper, upper right, left, center, right, lower left, lower, lower right is transferred, whether the shape of the rectangular image data formed in the data storage device 103 is abnormal, The address calculation device 111 detects an abnormality such as the transfer of a plurality of rectangular image data set to the same address from the address in the data storage device 103 and notifies the rectangular data transfer device 112 of the abnormality.

  If the transfer setting is abnormal in step S17, the rectangular data transfer device 112 gives an error notification in step S18, proceeds to step S12, and repeats steps S12 to S17. If the transfer setting is normal, the process proceeds to step S19, and the transfer of the rectangular image data to the data storage device 103 is started.

  In this way, when setting the transfer destination range to the upper left, upper, upper right, left, center, right, lower left, lower, lower right, which is the setting unit for creating rectangular data, notify that there was an error Thus, setting mistakes at the time of transfer can be reduced.

<Third Embodiment of Rectangle Transfer Processing>
FIG. 6 shows a flowchart of the third embodiment of the rectangular transfer process. In the figure, rectangular image data transfer setting is started in step S21. In steps S22 and S23, the rectangular data transfer device 112 sets a reading start address and a reading data range of the rectangular image data in the data storage device 102. In steps S24 and S25, the rectangular data transfer device 112 sets a write start address and a write data range in the data storage device 103.

  Thereafter, in step S26, it is determined whether or not all the rectangular image data required for reading and writing have been set for the start address and data range. If not completed, the process proceeds to step S22, and steps S22 to S26 are repeated.

  If completed, it is determined in step S27 whether bit extension has been set. If the bit extension setting has been made, the process proceeds to step S28, where the read rectangular image data from the data storage device 102 is transferred to the data editing device 110, and, for example, 8-bit data is bit-extended to 16-bit data. Thereafter, transfer of the rectangular image data bit-extended in step S29 to the data storage device 103 is started.

  If the bit expansion setting is not set in step S27, the process proceeds to step S29 as it is, and the transfer of the read rectangular image data from the data storage device 102 to the data storage device 103 is started.

  Thus, at the time of data transfer, each data width of the read rectangular image data is bit-extended and transferred to the storage device 103, so that the storage capacity of the storage device 102 can be reduced and the amount of read data is small. Speed can be improved and operation load can be reduced.

<Explanation of repeated transfer and painting>
When the data repeater 109 repeatedly performs transfer, the read image data A from the data storage device 102 is stored in the internal cache 113 as shown in FIG. Then, the read image data A is repeatedly transferred from the internal cache 113 to the designated range of the data storage device 103.

  As described above, by having the internal cache 113 for repetitive data in the data transfer device 100, the image data can be read from the storage device 102 only once, so that the processing speed can be improved and the operation load can be reduced. it can.

  When it is desired to fill a certain range with the same image data, the image data is not read from the data storage device 102, the painting image data B is designated by the painting device 114, and as shown in FIG. The designated range is filled by transferring the filled image data B to each address of the designated range of the data storage device 103.

  As described above, by having the painting device 114 for painting the designated range of the writing destination with the same image data, it is not necessary to read the image data to the storage device 102, so that the processing speed is improved and the operation is improved. The load can be reduced.

<Hardware configuration of image forming apparatus>
FIG. 9 is a hardware configuration diagram of an embodiment of an image forming apparatus to which the data transfer apparatus of the present invention is applied. In this image forming apparatus, the functions of each device such as a printer, a copy, a facsimile, and a scanner are housed in a single housing. A display unit, a printing unit, an imaging unit, and the like are provided in a single housing. Four types of software corresponding to the copy, facsimile, and scanner are provided, and the software is switched to operate as a printer, copy, facsimile, and scanner.

  In the figure, the image forming apparatus includes a controller 160, an operation display device 170, a fax control unit (hereinafter referred to as FCU) 180, a USB device 190, an IEEE 1394 device 200, and an engine unit 210.

  The controller 160 includes a CPU 161, a MEM-P 162, a north bridge (hereinafter referred to as NB) 163, a south bridge (hereinafter referred to as SB) 164, an ASIC 166, a MEM-C 167, and an HDD 168.

  The operation display device 70 is connected to the ASIC 166 of the controller 160. The FCU 80, the USB device 90, the IEEE 1394 device 100, and the engine unit 110 are connected to the ASIC 166 of the controller 160 via a PCI bus.

  In the controller 160, the MEM-C 167, the HDD 168, and the like are connected to the ASIC 166, and the CPU 161 and the ASIC 166 are connected via the NB 163 of the CPU chip set. In this way, if the CPU 161 and the ASIC 166 are connected via the NB 163, it is possible to cope with a case where the interface of the CPU 161 is not disclosed.

  Note that the ASIC 166 and the NB 163 are not connected via a PCI bus, but are connected via an AGP (Accelerated Graphics Port) 165. As described above, in order to execute and control one or more processes forming an application or a platform, the ASIC 166 and the NB 163 are connected via the AGP 165 instead of the low-speed PCI bus to prevent the performance from being deteriorated.

  The CPU 161 performs overall control of the image forming apparatus. The CPU 161 has an SCS (system control service), SRM (system resource manager), ECS (engine control service), MCS (memory control service), OCS (operation display control service), FCS and NCS on the OS (operating system). (Network Control Service) is started and executed as a process, and a printer application, a copy application, a fax application, a scanner application, a net file application, a process inspection application, a Web page application, and a document management application that form the application are started. To execute.

  The NB 163 is a bridge for connecting the CPU 161, the MEM-P 162, the SB 164, and the ASIC 166. The MEM-P 162 is a system memory used as a drawing memory of the image forming apparatus. The SB 164 is a bridge for connecting the NB 163 to a ROM, a PCI bus, and peripheral devices.

  The MEM-C 167 is a local memory used as a copy image buffer and a code buffer. The ASIC 166 is an IC for image processing applications having hardware elements for image processing. The HDD 168 is a storage for storing image data, document data, programs, font data, and forms.

  The operation display device 170 is an operation unit that receives an input operation from an operator and performs display for the operator. In the operation display device 170, the data transfer device of the present invention shown in FIG.

  The data storage device 102 corresponds to the first data storage means, the data storage device 103 corresponds to the second data storage means, the rectangular data transfer device 112 corresponds to the rectangle setting means, and the data The repeater 109 and the address calculator 111 correspond to size changing means, the internal cache 113 corresponds to holding means, steps S17 and S18 correspond to abnormality detecting means, the data editing device 110 corresponds to bit expanding means, The painting device 114 corresponds to painting means.

It is a block diagram of one embodiment of a data transfer device of the present invention. 3 is a diagram illustrating rectangular image data in the data storage device 102. FIG. 3 is a diagram illustrating rectangular image data in a data storage device 103. FIG. It is a flowchart of 1st Embodiment of a rectangle transfer process. It is a flowchart of 2nd Embodiment of a rectangle transfer process. It is a flowchart of 3rd Embodiment of a rectangle transfer process. It is a figure for demonstrating repetitive transfer. It is a figure for demonstrating painting. 1 is a hardware configuration diagram of an embodiment of an image forming apparatus to which a data transfer apparatus of the present invention is applied.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Data transfer apparatus 101 Data transfer part 102,103 Data storage apparatus 104 System control apparatus 105 Read address designation apparatus 106 Read size designation apparatus 107 Write address designation apparatus 108 Write size designation apparatus 109 Data repetition apparatus 110 Data editing apparatus 111 Address Computing device 112 Rectangular data transfer device

Claims (7)

A data transfer device for transferring image data stored in a first data storage means to a second data storage means,
Read start addresses and read data ranges of the four corners to be read from the first data storage unit, the four corners, the rectangular image data of the respective central rectangles surrounded by the four corners, and the second data Rectangles for setting the writing start address and the writing data range of the rectangular image data of each of the four corners to be written in the data storage means, between the four corners, and each rectangular image data in the center surrounded by the four corners Setting means;
Resizing means for repeating the image data read from the first data storage means and generating a write address of the second data storage means when the read data range and the write data range of each rectangle are different A data transfer device comprising: The data transfer device according to claim 1, wherein
A data transfer apparatus comprising holding means for holding image data read from the first data storage means and repeatedly transferred to the second data storage means. The data transfer device according to claim 1 or 2,
An abnormality detection means for detecting an abnormality in each of the rectangular image data written in the second data storage means, between the four corners, and in the center surrounded by the four corners. Data transfer device. The data transfer device according to any one of claims 1 to 3,
A data transfer apparatus comprising bit extension means for performing bit extension of image data read from the first data storage means and transferring the image data to the second data storage means. The data transfer device according to any one of claims 1 to 4,
A data transfer apparatus comprising paint means for transferring the same image data to each address in a designated range of the second data storage means.   An operation display device comprising the data transfer device according to any one of claims 1 to 5.   An image forming apparatus comprising the operation display device according to claim 6.

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