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    • 2. 发明授权
    • Data transform apparatus
    • 数据变换装置
    • US08554004B2
    • 2013-10-08
    • US13071023
    • 2011-03-24
    • Reiko FujinoTadayoshi Nakayama
    • Reiko FujinoTadayoshi Nakayama
    • G06K9/46
    • H04N19/42H04N19/18H04N19/60
    • This invention decreases the count of access to a memory which stores image data regarding orthogonal transform, and quickly generates orthogonal transform coefficients. An apparatus includes a storage unit which stores image data, a memory controller which reads each block from the storage unit, a first transforming unit which receives and orthogonally transforms the input block, and calculates only one DC component, a selector which selects and outputs one of the block read out via the memory controller, and data of DC components from the first transforming unit that are equal in number to pixels included in the block, a second transforming unit which orthogonally transforms data that have been output from the selector and are equal in number to pixels included in the block, and outputs either one DC component or a plurality of AC components, and a controller which controls the memory controller, selector, and second transforming unit.
    • 本发明减少对存储关于正交变换的图像数据的存储器的访问次数,并且快速地生成正交变换系数。 一种装置,包括存储图像数据的存储单元,从存储单元读取每个块的存储器控​​制器,接收并正交变换输入块并仅计算一个DC分量的第一变换单元,选择并输出一个 通过存储器控制器读出的块的数据和来自第一变换单元的DC分量的数据与块中包括的像素的数量相等;第二变换单元,其对从选择器输出的数据进行正交变换 并且输出一个DC分量或多个AC分量,以及控制器,其控制存储器控制器,选择器和第二变换单元。
    • 3. 发明申请
    • DATA TRANSFORM APPARATUS
    • 数据变换装置
    • US20110255798A1
    • 2011-10-20
    • US13071023
    • 2011-03-24
    • Reiko FujinoTadayoshi Nakayama
    • Reiko FujinoTadayoshi Nakayama
    • G06K9/36
    • H04N19/42H04N19/18H04N19/60
    • This invention decreases the count of access to a memory which stores image data regarding orthogonal transform, and quickly generates orthogonal transform coefficients. An apparatus includes a storage unit which stores image data, a memory controller which reads each block from the storage unit, a first transforming unit which receives and orthogonally transforms the input block, and calculates only one DC component, a selector which selects and outputs one of the block read out via the memory controller, and data of DC components from the first transforming unit that are equal in number to pixels included in the block, a second transforming unit which orthogonally transforms data that have been output from the selector and are equal in number to pixels included in the block, and outputs either one DC component or a plurality of AC components, and a controller which controls the memory controller, selector, and second transforming unit.
    • 本发明减少对存储关于正交变换的图像数据的存储器的访问次数,并且快速地生成正交变换系数。 一种装置,包括存储图像数据的存储单元,从存储单元读取每个块的存储器控​​制器,接收并正交变换输入块并仅计算一个DC分量的第一变换单元,选择并输出一个 通过存储器控制器读出的块的数据和来自第一变换单元的DC分量的数据与块中包括的像素的数量相等;第二变换单元,其对从选择器输出的数据进行正交变换 并且输出一个DC分量或多个AC分量,以及控制器,其控制存储器控制器,选择器和第二变换单元。
    • 4. 发明申请
    • SCAN CONVERSION APPARATUS, IMAGE ENCODING APPARATUS, AND CONTROL METHOD THEREFOR
    • 扫描转换装置,图像编码装置及其控制方法
    • US20120177298A1
    • 2012-07-12
    • US13203719
    • 2010-04-13
    • Reiko Fujino
    • Reiko Fujino
    • G06K9/36H04N1/04
    • H04N1/41H04N19/129H04N19/176H04N19/60H04N19/64
    • This invention enables parallelly sorting data in substantially M blocks though statistical information is updated. In the first scan conversion, (15) input transform coefficients of a two-dimensional array are read out and output in accordance with scan order information ScanOrder[ ], thereby outputting sorted one-dimensional array data. At this time, a significant coefficient detection unit determines whether the sorted data is a significant coefficient. Upon receiving a notification that the sorted data is a significant coefficient, a statistical information update unit updates statistical information ScanTotals[x] at a corresponding position. When the relationship between statistical information ScanTotals[x] and immediately preceding statistical information ScanTotals[x−1] is an ascending order, ScanOrder[x−1] and ScanOrder[x], and ScanTotals[x−1] and ScanTotals[x] are swapped respectively. A second scan conversion unit starts scan conversion of transform coefficients with a delay of at least two transform coefficients from a first scan conversion unit.
    • 本发明能够通过更新统计信息来平均地对基本上M个块中的数据进行排序。 在第一扫描转换中,根据扫描顺序信息ScanOrder []读出输出二维阵列的输入变换系数,从而输出排序的一维阵列数据。 此时,有效系数检测单元确定分类数据是否是有效系数。 统计信息更新单元收到排序数据是有效系数的通知后,更新相应位置的统计信息ScanTotals [x]。 当统计信息ScanTotals [x]和紧接在前的统计信息ScanTotals [x-1]之间的关系为升序时,ScanOrder [x-1]和ScanOrder [x],ScanTotals [x-1]和ScanTotals [x] 分别互换。 第二扫描转换单元开始对来自第一扫描转换单元的至少两个变换系数的延迟的变换系数的扫描转换。
    • 5. 发明授权
    • Image processing apparatus, image processing method, control program, and recording medium
    • 图像处理装置,图像处理方法,控制程序和记录介质
    • US07268915B2
    • 2007-09-11
    • US10313028
    • 2002-12-06
    • Reiko Fujino
    • Reiko Fujino
    • G06F15/00H04N1/36
    • H04N1/506
    • An object of this invention is to provide an image processing apparatus capable of preventing any color misregistration in printing even when the image processing apparatus is divided into a plurality of semiconductor integrated circuits. An image processing apparatus is used for an image forming apparatus for sequentially printing image processing results of color components by a plurality of photosensitive drums separated by predetermined distances in correspondence with the colors. In the image processing apparatus, a plurality of image processing sections for the respective color components are divided into a plurality of semiconductor integrated circuits. At least two of the plurality of image processing sections have storage sections which adjust the printing timings of the color components corresponding to the distances between the photosensitive drums. The image processing apparatus includes a synchronization circuit which synchronizes, with an image processing clock for image processing, a print request signal from a printer controller. The print request signal synchronized by the synchronization circuit is commonly used to adjust the read timings of the storage sections of the plurality of image processing sections.
    • 本发明的目的是提供一种图像处理装置,即使在将图像处理装置分割为多个半导体集成电路时也能够防止印刷中的任何颜色不对齐。 图像处理装置用于图像形成装置,用于通过与颜色相对应地分开预定距离的多个感光鼓来顺序打印彩色分量的图像处理结果。 在图像处理装置中,用于各种颜色分量的多个图像处理部分被分成多个半导体集成电路。 多个图像处理部分中的至少两个具有调节与感光鼓之间的距离对应的颜色成分的打印定时的存储部分。 图像处理装置包括同步电路,其与用于图像处理的图像处理时钟同步来自打印机控制器的打印请求信号。 由同步电路同步的打印请求信号通常用于调整多个图像处理部分的存储部分的读取定时。
    • 6. 发明授权
    • Scan conversion apparatus, image encoding apparatus, and control method therefor
    • 扫描转换装置,图像编码装置及其控制方法
    • US08509547B2
    • 2013-08-13
    • US13203719
    • 2010-04-13
    • Reiko Fujino
    • Reiko Fujino
    • G06K9/36G06K9/46
    • H04N1/41H04N19/129H04N19/176H04N19/60H04N19/64
    • This invention enables parallelly sorting data in substantially M blocks though statistical information is updated. In the first scan conversion, (15) input transform coefficients of a two-dimensional array are read out and output in accordance with scan order information ScanOrder[ ], thereby outputting sorted one-dimensional array data. At this time, a significant coefficient detection unit determines whether the sorted data is a significant coefficient. Upon receiving a notification that the sorted data is a significant coefficient, a statistical information update unit updates statistical information ScanTotals[x] at a corresponding position. When the relationship between statistical information ScanTotals[x] and immediately preceding statistical information ScanTotals[x−1] is an ascending order, ScanOrder[x−1] and ScanOrder[x], and ScanTotals[x−1] and ScanTotals[x] are swapped respectively. A second scan conversion unit starts scan conversion of transform coefficients with a delay of at least two transform coefficients from a first scan conversion unit.
    • 本发明能够通过更新统计信息来平均地对基本上M个块中的数据进行排序。 在第一扫描转换中,根据扫描顺序信息ScanOrder []读出输出二维阵列的输入变换系数,并输出排序的一维阵列数据。 此时,有效系数检测单元确定分类数据是否是有效系数。 统计信息更新单元收到排序数据是有效系数的通知后,更新相应位置的统计信息ScanTotals [x]。 当统计信息ScanTotals [x]和紧接在前的统计信息ScanTotals [x-1]之间的关系为升序时,ScanOrder [x-1]和ScanOrder [x],ScanTotals [x-1]和ScanTotals [x] 分别互换。 第二扫描转换单元开始对来自第一扫描转换单元的至少两个变换系数的延迟的变换系数的扫描转换。