公开(公告)号：US07254283B1

公开(公告)日：2007-08-07

申请号：US09438247

申请日：1999-11-12

申请人： Junji Nishigaki ,  Atsushi Ishikawa ,  Kenichi Sawada ,  Kazuhiro Ishiguro ,  Hiroyuki Suzuki

发明人： Junji Nishigaki ,  Atsushi Ishikawa ,  Kenichi Sawada ,  Kazuhiro Ishiguro ,  Hiroyuki Suzuki

IPC分类号： G06K9/60

CPC分类号： G06T1/20

摘要： In order to efficiently process image data in a circuit dividing single image data into a plurality of data and processing the data with a plurality of MPUs in parallel with each other, the MPUs process image data input through an input image data in parallel with each other. An address bus inputs addresses of the image data, and address memories provided on the MPUs store the addresses of the image data processed by the MPUs respectively. When the image data are completely processed, the image data are output through an output image bus while the addresses of the image data are output through the address bus.

摘要翻译： 为了有效地处理将单个图像数据分割成多个数据的电路中的图像数据并且彼此并行地与多个MPU进行数据处理，则MPU通过输入图像数据彼此并行输入的图像数据 。 地址总线输入图像数据的地址，并且在MPU上提供的地址存储器分别存储由MPU处理的图像数据的地址。 当图像数据被完全处理时，通过输出图像总线输出图像数据，同时通过地址总线输出图像数据的地址。

公开(公告)号：US06707951B1

公开(公告)日：2004-03-16

申请号：US09369176

申请日：1999-08-05

申请人： Hiroyuki Suzuki ,  Kenichi Sawada ,  Atsushi Ishikawa

发明人： Hiroyuki Suzuki ,  Kenichi Sawada ,  Atsushi Ishikawa

IPC分类号： G06K936

CPC分类号： H04N1/40062 ,  H04N1/56

摘要： A device and a method for detecting isolated points in image data by the application of an isolated point detection filter, and discriminating whether or not the image data are a halftone dot image by the number of isolated point detected within a predetermined area. The size of the isolated points is reduced so as to be smaller than the isolated point detection filter by culling the image. In this way isolated points can be detected using the same isolated point detection filter regardless of the resolution of the image data.

摘要翻译： 一种用于通过应用隔离点检测滤波器来检测图像数据中的孤立点的装置和方法，并且通过在预定区域内检测到的孤立点的数量来区分图像数据是否为半色调点图像。 通过剔除图像，分离点的大小减小到比孤立点检测滤波器小。 以这种方式，无论图像数据的分辨率如何，都可以使用相同的孤立点检测滤波器来检测孤立点。

公开(公告)号：US07142238B1

公开(公告)日：2006-11-28

申请号：US09427078

申请日：1999-10-26

申请人： Kenichi Sawada ,  Atsushi Ishikawa ,  Hiroyuki Suzuki

发明人： Kenichi Sawada ,  Atsushi Ishikawa ,  Hiroyuki Suzuki

IPC分类号： H04N5/208 ,  H04N1/46 ,  H04N5/247

CPC分类号： H04N1/00002 ,  H04N1/00013 ,  H04N1/00023 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00068 ,  H04N1/00087 ,  H04N1/1013 ,  H04N1/193 ,  H04N1/48 ,  H04N9/045

摘要： An image pick up device includes a pick-up unit for picking up an image condensed on a line sensor through a lens; a chromatic aberration correction board with a predetermined pattern in accordance with a pick-up resolution; an interpolation factor calculation unit for calculating chromatic aberration interpolation factors to be used for a chromatic aberration correction by using digital image data on the chromatic aberration correction board picked up by the pick-up unit; a line memory for storing the chromatic aberration interpolation factors calculated by the interpolation factor calculation unit; and a chromatic aberration unit for correcting the image data picked up from an original image by using the chromatic aberration interpolation factors outputted from the line memory.

摘要翻译： 图像拾取装置包括用于拾取通过透镜在线传感器上聚焦的图像的拾取单元; 具有根据拾取分辨率的预定图案的色差校正板; 内插因子计算单元，用于通过使用由拾取单元拾取的色差校正板上的数字图像数据来计算用于色差校正的色差内插因子; 行存储器，用于存储由内插因子计算单元计算出的色差内插因子; 以及色差单元，用于通过使用从行存储器输出的色差内插因子来校正从原始图像拾取的图像数据。

公开(公告)号：US06597472B1

公开(公告)日：2003-07-22

申请号：US09369169

申请日：1999-08-05

申请人： Hiroyuki Suzuki ,  Kenichi Sawada ,  Atsushi Ishikawa

发明人： Hiroyuki Suzuki ,  Kenichi Sawada ,  Atsushi Ishikawa

IPC分类号： G06K1500

CPC分类号： G06K15/02 ,  G06K15/1822

摘要： An image processing device and image processing method for discriminating whether or not input image data are a halftone dot image and whether or not the input image data are a color image or a monochrome image, and subjecting the input image data to optimum image processing in accordance with the discrimination results. The image processing device and image processing method outputs images without color bleed or color muddiness by performing optimum image processing on the image data.

摘要翻译： 一种图像处理装置和图像处理方法，用于鉴别输入的图像数据是否是半色调点图像，以及输入图像数据是彩色图像还是单色图像，并且根据输入图像数据进行最佳图像处理 与歧视结果。 图像处理装置和图像处理方法通过对图像数据进行最佳图像处理而输出没有颜色渗色或颜色混浊的图像。

公开(公告)号：US06535971B1

公开(公告)日：2003-03-18

申请号：US09447263

申请日：1999-11-23

申请人： Toshiya Shirasawa ,  Kenichi Sawada ,  Atsushi Ishikawa

发明人： Toshiya Shirasawa ,  Kenichi Sawada ,  Atsushi Ishikawa

IPC分类号： G06F15163

CPC分类号： G06T1/20 ,  G06F9/5083

摘要： In order to provide a data processing system processing data at a high speed and having a high performance, the data processing system has the following construction. The data processing system includes a plurality of MPUs which execute a series of processings to data to be processed in a prescribed order, and a data flow control portion which determines the progress of a processing in each of the plurality of processings and changes the processings executed by each of the plurality of processors if there is a delayed processing, and processings by the plurality of MPUs are executed asynchronously. If the loads of the plurality of MPUs change based on difference in data, the loads of the plurality of MPUs are equalized.

摘要翻译： 为了提供高速处理数据并且具有高性能的数据处理系统，数据处理系统具有以下结构。 数据处理系统包括对规定顺序要处理的数据执行一系列处理的多个MPU，以及确定多个处理中的每个处理中的处理进度并改变执行的处理的数据流控制部分 如果存在延迟处理，则由多个处理器中的每一个处理器执行异步执行，并且由多个MPU执行的处理是异步执行的。 如果多个MPU的负载基于数据的差异而改变，则使多个MPU的负载相等。

公开(公告)号：US06366702B1

公开(公告)日：2002-04-02

申请号：US09103308

申请日：1998-06-23

申请人： Mitsuru Obara ,  Atsushi Ishikawa ,  Kenichi Sawada

发明人： Mitsuru Obara ,  Atsushi Ishikawa ,  Kenichi Sawada

IPC分类号： G06K936

CPC分类号： H04N1/41

摘要： The method and apparatus particularly adapted for reducing the storage capacity of line memories needed for temporarily storing image data for lines until image data for the last line is obtained in digital filtering. Inputted image data are divided into a plurality of blocks, each of which consists of image data obtained from n pixels. The integer n may assume a value of 8, 16, 32, etc. The constituents of one block after another are compressed such that image data consisting of 8 bits per pixel are converted into encoded data consisting of 2 bits per pixel. Data on a dynamic range and an average value for each block are added as a headder to the encoded data. Compressed image data are taken out of a buffer memory after being temporarily stored therein and, together with or separately from compressed image data newly outputted from a compression unit, subjected to image processing such as MTF correction in an arithmetic unit. Image processing to be carried out in the arithmetic unit normally includes expansion and correction to be carried out independently of or simultaneously with each other.

摘要翻译： 该方法和装置特别适用于减少用于临时存储用于行的图像数据所需的行存储器的存储容量，直到在数字滤波中获得用于最后一行的图像数据。 输入图像数据被分成多个块，每个块由从n个像素获得的图像数据组成。 整数n可以采取8,16,32等的值。一个块之后的一个块的组成被压缩，使得由每像素8位组成的图像数据被转换成由每像素2位组成的编码数据。 关于每个块的动态范围和平均值的数据作为编码数据的头像被添加。 压缩图像数据在暂时存储之后从缓冲存储器中取出，并且与压缩单元新输出的压缩图像数据一起或分开地在运算单元中进行诸如MTF校正的图像处理。 在运算单元中执行的图像处理通常包括彼此独立地或同时进行的扩展和校正。

公开(公告)号：US06332045B1

公开(公告)日：2001-12-18

申请号：US09199406

申请日：1998-11-25

申请人： Kenichi Sawada ,  Atsushi Ishikawa

发明人： Kenichi Sawada ,  Atsushi Ishikawa

IPC分类号： G06F1570

CPC分类号： G06T5/002 ,  G06T5/20

摘要： An image processing device includes an image data correction unit for correcting multi-level image data of a target pixel; an image data binarizer for binarizing the corrected multi-level image data of the target pixel; a binarization error calculator which calculates a first error between the corrected multi-level image data and the image data of pixels within a first region on a periphery of the target pixel that is binarized by the image data binarizer; and a device for executing a predetermined filtering process on the first error to calculate a second error, and for weighting and averaging the second error for pixels within the first region; wherein the image data correction unit corrects the multi-level image data by using the weighted and averaged second error.

摘要翻译： 图像处理装置包括用于校正目标像素的多级图像数据的图像数据校正单元; 图像数据二值化器，用于二值化目标像素的校正的多级图像数据; 二值化误差计算器，其计算校正后的多级图像数据与由图像数据二值化器二值化的目标像素的周边上的第一区域内的像素的图像数据之间的第一误差; 以及用于对所述第一误差执行预定滤波处理以计算第二误差并且用于对所述第一区域内的像素的所述第二误差进行加权和平均的装置; 其中所述图像数据校正单元通过使用所述加权和平均的第二误差来校正所述多级图像数据。

公开(公告)号：US06633975B1

公开(公告)日：2003-10-14

申请号：US09437406

申请日：1999-11-10

申请人： Kenichi Sawada ,  Atsushi Ishikawa ,  Mitsuru Obara ,  Toshiya Shirasawa

发明人： Kenichi Sawada ,  Atsushi Ishikawa ,  Mitsuru Obara ,  Toshiya Shirasawa

IPC分类号： G06F15177

CPC分类号： G06F15/8053

摘要： A data processing system has the following construction in order to achieve high speed data processing with reduced memory capacity. There are provided a memory to store a plurality of pieces of sequentially input data to be processed, a plurality of processors to execute a series of processings, e.g., Log conversion, MTF correction, gamma correction and binarization in this order to the data to be processed stored in the memory in the order of input, and a state control portion to determine which processing is stagnant by monitoring the progress of a processing by each of said plurality of processors and prohibit a processor executing a processing succeeding to a processing determined as being stagnant from accessing the memory. Processings by the plurality of processors are executed asynchronously and the plurality of processors share the memory.

摘要翻译： 数据处理系统具有以下结构，以便以较低的存储容量实现高速数据处理。 提供存储多个待处理的顺序输入数据的存储器，多个处理器，以按顺序执行一系列处理，例如日志转换，MTF校正，伽马校正和二值化处理 以输入顺序存储在存储器中的状态控制部分，以及状态控制部分，通过监视所述多个处理器中的每个处理器的处理进度来确定哪个处理是停滞的，并且禁止执行处理的处理器被确定为 停止访问内存。 多个处理器的处理是异步执行的，并且多个处理器共享存储器

公开(公告)号：US06356361B1

公开(公告)日：2002-03-12

申请号：US09178452

申请日：1998-10-23

申请人： Atsushi Ishikawa ,  Kenichi Sawada

发明人： Atsushi Ishikawa ,  Kenichi Sawada

IPC分类号： G06K938

CPC分类号： H04N1/4052

摘要： An image processing apparatus that can speed the process without degrading the resolution and gradation of the original error diffusion method includes a product sum calculation unit for calculating a weighted mean error E′avexy leaving out the binarization error of an input pixel Ix−1,y, an adder for adding the calculated result of the product sum calculation unit to Ixy to output I″xy, a multiplier 25 for calculating a diffusion error E′x−1,y, from the binarization error Ex−1,y of Ix−1,y to be error-diffused to Ixy, and a comparator for setting the output pixel Bxy to 1 when E′x−1,y≧Th−I″xy is established and to 0 when not established.

摘要翻译： 可以在不降低原始误差扩散方法的分辨率和灰度的情况下加速处理的图像处理装置包括：乘积和计算单元，用于计算加权平均误差E'avexy，从而省略输入像素Ix-1的二值化误差，y ，用于将产生和计算单元的计算结果与Ixy相加的输出I'xy的加法器，用于计算扩散误差E'x-1的乘法器25，从二进制化误差Ex-1，yx -1，y被错误扩散到Ixy，以及用于当E'x-1，y> = Th-I'xy建立时将输出像素Bxy设置为1的比较器，并且当不建立时将其设置为0。

公开(公告)号：US08988132B2

公开(公告)日：2015-03-24

申请号：US13497392

申请日：2011-02-23

申请人： Kenichi Sawada

发明人： Kenichi Sawada

IPC分类号： H03K17/687 ,  H01L27/02 ,  H01L21/82 ,  H01L25/07 ,  H01L25/18 ,  H02M1/08

CPC分类号： H01L27/0285 ,  H01L21/8213 ,  H01L25/072 ,  H01L25/18 ,  H01L2924/0002 ,  H02M1/08 ,  Y02B70/1483 ,  H01L2924/00

摘要： Provided is a semiconductor device which avoids an adverse effect of high temperatures due to a switching element and in which a circuit to prevent false firing is arranged on the same substrate as the switching element. An N-channel type MOSFET 10 and a JFET 30 of an N-channel type containing a semiconductor material of silicon carbide are individually arranged in proximity on conductive patterns 51, 52 on a substrate 5, and a gate electrode 13 of the MOSFET 10 and a drain electrode 31 of the JFET 30 are connected by a lead 61. When an external drive signal for on/off control of MOSFET 10 propagates between source electrode 32 and drain electrode 31 of JFET 30, the channel resistance of JFET 30 is changed to a large/small value according to a low/high level of gate voltage between source electrode 32 and gate electrode 33, whereby a leading edge of a switching waveform between drain electrode 11 and source electrode 12 of MOSFET 10 comes to have a gentler slope than a trailing edge thereof.

摘要翻译： 提供一种半导体器件，其避免了由于开关元件引起的高温的不利影响，并且其中防止假燃烧的电路布置在与开关元件相同的基板上。 包含碳化硅半导体材料的N沟道型MOSFET 10和NFET型JFET 30分别排列在衬底5上的导电图案51,52和MOSFET 10的栅极13上， JFET 30的漏电极31由引线61连接。当用于MOSFET10的导通/截止控制的外部驱动信号在JFET 30的源电极32和漏电极31之间传播时，JFET 30的沟道电阻变为 根据源电极32与栅电极33之间的栅极电压的低/高电平，大/小的值，MOSFET 10的漏电极11和源电极12之间的开关波形的前沿具有比 其后缘。