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1. 发明申请

US20060146891A1 Semiconductor device 失效
标题翻译：半导体器件
公开(公告)号：US20060146891A1
公开(公告)日：2006-07-06
申请号：US10541678
申请日：2004-11-19
申请人： Hisao Kunitani , Satoru Tanigawa , Hiroshi Sonobe , Atsuhisa Kageyama
发明人： Hisao Kunitani , Satoru Tanigawa , Hiroshi Sonobe , Atsuhisa Kageyama
IPC分类号： H04J3/06
CPC分类号： H03L7/07 , H03K5/13 , H03K5/1565 , H03L7/0814 , H04N5/126
摘要： In a semiconductor device of the present invention, a clock is not changed instantaneously but it is changed over maximum N+1/M clocks (N: integer not less than 2) by shifting delay cells stepwisely to make the phase state of a previous reference signal and the phase state of a present reference signal coincide with each other, whereby the clock is synchronized with the reference signal with accuracy, and the duty of the output clock is kept constant. According to the semiconductor device of the present invention, it is possible to prevent the duty of the clock from being discontinuous when a signal whose reference signal does not coincide with the clock is inputted and reset is made to a rising edge of this reference signal.
摘要翻译：在本发明的半导体器件中，时钟不瞬时变化，但是通过逐步移动延迟单元，使其在最大N + 1 / M个时钟（N：不小于2的整数）上改变，以使之前的参考的相位状态信号和本参考信号的相位状态彼此一致，从而精确地将时钟与参考信号同步，并且输出时钟的占空比保持恒定。根据本发明的半导体器件，当输入参考信号与时钟不一致的信号时，可以防止时钟的占空比不连续，并且复位到该参考信号的上升沿。

2. 发明授权

US07259599B2 Semiconductor device 失效
标题翻译：半导体器件
公开(公告)号：US07259599B2
公开(公告)日：2007-08-21
申请号：US10541678
申请日：2004-11-19
申请人： Hisao Kunitani , Satoru Tanigawa , Hiroshi Sonobe , Atsuhisa Kageyama
发明人： Hisao Kunitani , Satoru Tanigawa , Hiroshi Sonobe , Atsuhisa Kageyama
IPC分类号： H03L7/00
CPC分类号： H03L7/07 , H03K5/13 , H03K5/1565 , H03L7/0814 , H04N5/126
摘要： In a semiconductor device of the present invention, a clock is not changed instantaneously but it is changed over maximum N+1/M clocks (N: integer not less than 2) by shifting delay cells in a step by step manner to make the phase state of a previous reference signal and the phase state of a present reference signal coincide with each other, whereby the clock is synchronized with the reference signal with accuracy, and the duty of the output clock is kept constant. With this semiconductor device, it is possible to prevent the duty of the clock from being discontinuous when a signal whose reference signal does not coincide with the clock is inputted and reset is made to a rising edge of this reference signal.
摘要翻译：在本发明的半导体器件中，时钟不瞬时变化，但是通过逐步地移动延迟单元，在最大N + 1 / M个时钟（N：不小于2的整数）上改变时钟，以使相位先前参考信号的状态和本参考信号的相位状态彼此一致，从而精确地将时钟与参考信号同步，并且输出时钟的占空比保持恒定。利用该半导体器件，当输入参考信号与时钟不一致的信号时，可以防止时钟的占空比不连续，并且复位到该参考信号的上升沿。

3. 发明申请

US20080158033A1 DRIVING DEVICE FOR IMAGE DISPLAY SYSTEM 审中-公开
标题翻译：用于图像显示系统的驱动装置
公开(公告)号：US20080158033A1
公开(公告)日：2008-07-03
申请号：US11965279
申请日：2007-12-27
申请人： Yasuyuki Doi , Makoto Hattori , Hisao Kunitani , Atsuhisa Kageyama , Tetsuro Oomori , Osamu Sarai , Tooru Suyama , Kurumi Nakayama , Kazuya Matsumoto
发明人： Yasuyuki Doi , Makoto Hattori , Hisao Kunitani , Atsuhisa Kageyama , Tetsuro Oomori , Osamu Sarai , Tooru Suyama , Kurumi Nakayama , Kazuya Matsumoto
IPC分类号： G09G3/36
CPC分类号： G09G3/3685 , G09G3/2059 , G09G3/3696 , G09G2310/027 , G09G2340/0428
摘要： A driving device for driving an image display system, which sequentially receives input image data corresponding to gradation of each pixel of a display image and outputs a driving voltage signal includes: an operation section for obtaining output image data of which a bit number is smaller than a bit number of the input image data based on input image data of a target pixel to be processed and input image data of a pixel in vicinity of the target pixel; a reference voltage generation section for generating a plurality of reference voltages of different levels; and a reference voltage selection section for selecting one of the plurality of reference voltages. The operation section is configured to obtain output image data of the target pixel so that a difference between the input image data and output image data of the target pixel and a difference between the input image data and output image data of the pixel in vicinity of the target pixel cancel out each other.
摘要翻译：一种用于驱动图像显示系统的驱动装置，其顺序地接收与显示图像的每个像素的灰度对应的输入图像数据并输出驱动电压信号，包括：操作部，用于获得位数小于基于要处理的目标像素的输入图像数据的输入图像数据的位数，并输入目标像素附近的像素的图像数据; 用于产生不同电平的多个参考电压的参考电压产生部分; 以及用于选择多个参考电压中的一个的参考电压选择部分。操作部被配置为获得目标像素的输出图像数据，使得输入图像数据和目标像素的输出图像数据之间的差异以及输入图像数据与输入图像数据之间的像素的输出图像数据之间的差异目标像素相互抵消。

4. 发明授权

US06633343B2 Dynamic gamma correction apparatus 失效
标题翻译：动态伽马校正装置
公开(公告)号：US06633343B2
公开(公告)日：2003-10-14
申请号：US09803660
申请日：2001-03-12
申请人： Keiichi Ito , Atsuhisa Kageyama , Nobutaka Okada , Katsuya Ishikawa , Hidetoshi Suzuki , Hisao Kunitani , Yuki Kakuya
发明人： Keiichi Ito , Atsuhisa Kageyama , Nobutaka Okada , Katsuya Ishikawa , Hidetoshi Suzuki , Hisao Kunitani , Yuki Kakuya
IPC分类号： H04N5202
CPC分类号： H04N5/202
摘要： An appropriate correction quantity is obtained for a video luminance signal on an individual video basis with a characteristic value, like the maximum or average value, of the luminance signal taken into account, thereby performing gray scale correction more effectively. A dynamic gamma correction apparatus for performing a correction on a video luminance signal includes: a correction start point control section for obtaining a correction start point, which is a lower limit of a given correction range, in accordance with a characteristic value of the luminance signal; a gamma correction quantity calculating section for obtaining a provisional correction quantity for the luminance signal to be corrected using the correction start point and the luminance signal; a gamma correction gain control section for obtaining a gain for the provisional correction quantity in accordance with the characteristic value of the luminance signal; a multiplier for obtaining a product of the provisional correction quantity and the gain as a gamma correction quantity; and an adder for obtaining a sum of the luminance signal and the gamma correction quantity and outputting the sum. The correction start point and the gain for the provisional correction quantity are controllable in accordance with the characteristic value of the luminance signal. Thus, an appropriate gamma correction quantity can be obtained as a final correction quantity.
摘要翻译：通过考虑到亮度信号的特性值（如最大值或平均值），在单个视频基础上获得适当的校正量，从而更有效地执行灰度校正。用于对视频亮度信号执行校正的动态伽马校正装置包括：校正开始点控制部分，用于根据亮度信号的特征值获得作为给定校正范围的下限的校正开始点 ; 伽马校正量计算部分，用于使用校正开始点和亮度信号获得要校正的亮度信号的临时校正量; 伽马校正增益控制部分，用于根据亮度信号的特征值获得临时校正量的增益; 用于获得临时校正量和增益的乘积作为伽马校正量的乘法器; 以及用于获得亮度信号和伽马校正量之和并输出该和的加法器。校正开始点和临时校正量的增益根据亮度信号的特征值是可控的。因此，可以获得适当的伽马校正量作为最终校正量

5. 发明授权

US06580464B1 Color difference signal correction apparatus 有权
标题翻译：色差信号校正装置
公开(公告)号：US06580464B1
公开(公告)日：2003-06-17
申请号：US09721873
申请日：2000-11-27
申请人： Hisao Kunitani , Atsuhisa Kageyama , Katsuya Ishikawa
发明人： Hisao Kunitani , Atsuhisa Kageyama , Katsuya Ishikawa
IPC分类号： H04N973
CPC分类号： H04N9/73
摘要： The present invention provides a color difference signal correction apparatus for correcting color difference of parts having no color, particularly white characters, which can make the correction with high accuracy also for images including lightly colored parts. The color difference signal correction apparatus of the present invention comprises a full-wave rectification circuit 12 for full-wave rectifying an input color difference signal (R−Y)a, a full-wave rectification circuit 13 for full-wave rectifying an input color difference signal (B−Y)b, an addition circuit 14 for adding the outputs of the full-wave rectification circuit 12 and the full-wave rectification circuit 13, an addition circuit 4 for adding a white character slice level signal e and the output of the addition circuit 14, a luminance signal slice circuit 5 for slicing a luminance signal g with the output of the addition circuit 4, and an addition circuit 6 for adding the output of the luminance signal slice circuit 5 and the input color difference signal (B−Y)b and outputting the addition result.
摘要翻译：本发明提供了一种色差信号校正装置，用于校正没有颜色，特别是白色字符的部分的色差，其可以对包括浅色部分的图像进行高精度的校正。本发明的色差信号校正装置包括用于全波整流输入色差信号（RY）a的全波整流电路12，全波整流电路13，用于全波整流输入色差信号（BY）b，用于将全波整流电路12和全波整流电路13的输出相加的加法电路14，用于将白字符限幅电平信号e和加法电路的输出相加的加法电路4 14是用于对加法电路4的输出对亮度信号g进行分片的亮度信号限制电路5，以及用于将亮度信号限幅电路5的输出和输入色差信号（BY）b相加的加法电路6和输出加法结果。

6. 发明授权

US06492921B1 Device for clamping multiple signals 有权
标题翻译：用于钳位多个信号的装置
公开(公告)号：US06492921B1
公开(公告)日：2002-12-10
申请号：US09856874
申请日：2001-05-29
申请人： Hisao Kunitani , Atsuhisa Kageyama
发明人： Hisao Kunitani , Atsuhisa Kageyama
IPC分类号： H03M110
CPC分类号： H03M1/1295 , H03M1/1225 , H04N5/18 , H04N5/185
摘要： A large number of analog signals (Aa, Ba . . . Na) are time-division-multiplexed by an analog switch (12) into a single analog signal (c). The multiplexed analog signal (c) is converted by an A/D conversion circuit (8) into a digital signal (d). The digital signal (d) is separated by a signal separation circuit (14) into a large number of digital signals (e) respectively corresponding to the analog signals (Aa, Ba . . . Na). Each digital signal (e) is compared by a comparison circuit (9) with a digital reference value (f) having a predetermined value. A current source control circuit (10) generates a digital control signal (g) according to the amount of shift in the digital signal (e) with respect to the digital reference value (f), and the current source (11) is controlled by the control signal (g). Therefore, the clamp level of an analog signal is adjusted to a predetermined level with a high precision, thereby effectively suppressing the level shift thereof.
摘要翻译：大量模拟信号（Aa，Ba ... Na）被模拟开关（12）进行时分复用为单个模拟信号（c）。复用的模拟信号（c）由A / D转换电路（8）转换成数字信号（d）。数字信号（d）被信号分离电路（14）分离成分别对应于模拟信号（Aa，Ba，...，Na）的大量数字信号（e）。每个数字信号（e）通过比较电路（9）与具有预定值的数字参考值（f）进行比较。电流源控制电路（10）根据数字信号（e）相对于数字参考值（f）的偏移量产生数字控制信号（g），并且电流源（11）由控制信号（g）。因此，模拟信号的钳位电平以高精度被调整到预定电平，从而有效地抑制了模拟信号的电平偏移。

7. 发明授权

US06903781B2 Video signal processing apparatus 有权
标题翻译：视频信号处理装置
公开(公告)号：US06903781B2
公开(公告)日：2005-06-07
申请号：US10184053
申请日：2002-06-28
申请人： Satoru Tanigawa , Atsuhisa Kageyama , Ryuichi Shibutani
发明人： Satoru Tanigawa , Atsuhisa Kageyama , Ryuichi Shibutani
IPC分类号： H04N5/265 , G09G5/00 , H04N5/45 , H04N9/64 , H04N9/67 , H04N9/74 , H04N9/78 , H04N5/445
CPC分类号： H04N5/45 , H04N9/641 , H04N21/426 , H04N21/4316 , H04N21/440263
摘要： A video signal processing apparatus comprises a sub-screen processing integrated circuit for subjecting a sub-screen video signal to scale-down processing to reduce its display region and output the sub-screen video signal, and a main-screen processing integrated circuit comprising: a switching circuit for receiving a main-screen video signal and the scaled-down sub-screen video signal which is outputted from the sub-screen processing integrated circuit, and selecting the main-screen video signal for a main-screen display region while selecting the sub-screen video signal for a sub-screen display region; an A/D conversion circuit for converting the video signal outputted from the switching circuit into a digital video signal; a digital signal processing circuit for digitally processing the digital video signal outputted from the A/D conversion circuit; and a D/A conversion circuit for converting the digitally-processed video signal into an analog video signal. Therefore, the main-screen video signal and the sub-screen video signal can be combined so that these signals are displayed on a single screen, and the circuit scale of the video signal processing apparatus can be minimized.
摘要翻译：视频信号处理装置包括：子屏幕处理集成电路，用于对子屏幕视频信号进行缩小处理以减小其显示区域并输出子屏幕视频信号;以及主屏幕处理集成电路，包括：用于接收主屏幕视频信号的切换电路和从子画面处理集成电路输出的按比例缩小的子画面视频信号，并且在选择主画面显示区域的同时选择主屏幕视频信号用于子屏幕显示区域的子屏幕视频信号; A / D转换电路，用于将从开关电路输出的视频信号转换为数字视频信号; 数字信号处理电路，用于数字处理从A / D转换电路输出的数字视频信号; 以及用于将数字处理的视频信号转换为模拟视频信号的D / A转换电路。因此，可以组合主屏幕视频信号和子屏幕视频信号，使得这些信号被显示在单个屏幕上，并且可以使视频信号处理设备的电路规模最小化。

8. 发明授权

US07209182B2 False contour correcting apparatus and method 有权
标题翻译：假轮廓修正装置及方法
公开(公告)号：US07209182B2
公开(公告)日：2007-04-24
申请号：US10616990
申请日：2003-07-11
申请人： Minoru Kawabata , Atsuhisa Kageyama , Masahiro Takeshima
发明人： Minoru Kawabata , Atsuhisa Kageyama , Masahiro Takeshima
IPC分类号： H04N5/57
CPC分类号： H04N5/142 , H04N5/208 , H04N5/21 , H04N5/44 , H04N21/4318
摘要： A false contour correcting apparatus is capable of removing a false contour in an image based on a digital image signal while avoiding such a side effect caused by false contour correction where noises negatively effecting the display occur on a screen. Therefore, in the false contour correcting apparatus according, a double bit change detection circuit detects as a double bit change a signal value change which is twice a minimum quantization unit in a digital image signal, and outputs a double bit change detection signal representing the position of the double bit change. A signal correction circuit corrects the double bit change in the digital image signal into two one-bit changes on the basis of the double bit change detection signal. Consequently, a false contour corresponding to a portion where the double bit change exists is removed.
摘要翻译：假轮廓校正装置能够基于数字图像信号去除图像中的假轮廓，同时避免由于其中在屏幕上发生负面影响的噪声而导致的错误轮廓校正引起的这种副作用。因此，在根据双位变化检测电路的双位改变检测电路中，将数字图像信号中的最小量化单位的两倍的信号值变化检测为双位变化检测电路，并输出表示位置的双位变化检测信号的双位变化。信号校正电路基于双位变化检测信号将数字图像信号中的双位变化校正为两个1位变化。因此，与存在双位变化的部分对应的假轮廓被去除。

9. 发明授权

US06295095B1 Video signal character converting device and method of the same 失效
标题翻译：视频信号字符转换装置及其方法相同
公开(公告)号：US06295095B1
公开(公告)日：2001-09-25
申请号：US09359597
申请日：1999-07-23
申请人： Minoru Kawabata , Atsuhisa Kageyama
发明人： Minoru Kawabata , Atsuhisa Kageyama
IPC分类号： H04N514
CPC分类号： H04N5/57 , H04N5/44 , H04N21/4318
摘要： In a video signal character converting device, a sampling window signal generator generates a signal for sampling an input video signal “a”. A video scene amplitude discrimination circuit samples the video signal in response to the sampling signal, detects a change in image level either field by field or frame by frame based on an integrated value for every duration of vertical scanning, and outputs a resetting pulse when the change in picture level exceeds a predetermined level. A video scene periodicity discrimination circuit measures a time interval between two successive resetting pulses, and outputs a control signal if the time interval is shorter than a predetermined period. A video scene conversion circuit converts a video scene in response to the control signal. The video signal character detecting device of the present invention determines as to whether or not the input video signal has video images that present an adverse effect mentally and physically to viewers, by observing an image level and periodicity of the video signal in this manner. The device is thus able to output video images by converting them into a harmless level with a process of reducing contrast or blanking, if it determines the video images harmful.
摘要翻译：在视频信号字符转换装置中，采样窗口信号发生器产生用于对输入视频信号“a”进行采样的信号。视频场景振幅鉴别电路响应于采样信号对视频信号进行采样，根据垂直扫描的每个持续时间的积分值逐场或逐帧地检测图像电平的变化，并且当图像水平的变化超过预定水平。视频场景周期性判别电路测量两个连续复位脉冲之间的时间间隔，并且如果时间间隔短于预定周期，则输出控制信号。视频场景转换电路响应于控制信号转换视频场景。本发明的视频信号字符检测装置通过以这种方式观察视频信号的图像级和周期性来确定输入视频信号是否具有对观看者的精神和物理上的不良影响的视频图像。因此，如果确定视频图像有害，则该设备能够通过将它们转换成无害水平，并通过减少对比度或消隐的过程来输出视频图像。

10. 发明授权

US6064447A Pure red color detection circuit and color compensation circuit using the same 失效
标题翻译：纯红色检测电路和色彩补偿电路采用相同
公开(公告)号：US6064447A
公开(公告)日：2000-05-16
申请号：US35684
申请日：1998-03-05
申请人： Hiroko Sugimoto , Atsuhisa Kageyama , Masahiro Takeshima , Minoru Kawabata
发明人： Hiroko Sugimoto , Atsuhisa Kageyama , Masahiro Takeshima , Minoru Kawabata
IPC分类号： H04N9/64 , G09G1/28 , G09G5/02 , H04N9/68
CPC分类号： H04N9/68
摘要： Red color saturation is increased and red color with higher purity can be reproduced by composing: a red color detection circuit 1 for detecting a red color signal having higher purity by inputting color differential signals (R-Y) and (B-Y) modulated by color subcarrier, subtracting the absolute value of the (B-Y) signal from the positive polarity component of the (R-Y) signal and removing the negative part of the subtracted signal; Y signal compensation block including: first gain controller 50b for controlling the output signal amplitude of red color detection circuit 1 and a subtracter 50a for subtracting the output signal of first gain controller 50b from a luminance signal Y; an (R-Y) signal compensation block including: second gain controller 51b for controlling the output signal amplitude of red color detection circuit 1 and an adder 51a for adding the output signal of second gain controller 51b and the input (R-Y) signal; and a (B-Y) signal compensation block including: third gain controller 52b for controlling the output signal amplitude of red color detection circuit 1, a polarity inverter 52c for inverting the output signal polarity of third gain controller 52b, a switch circuit 52d for selecting either input signal or output signal of polarity inverter 52c, a polarity discriminater 52e for discriminating the polarity of the input (B-Y) signal and controlling switch circuit 52d and an adder 52e for adding the output signal of switch circuit 52d and the input (B-Y) signal.
摘要翻译：增加红色饱和度，通过构成红色检测电路1，红色检测电路1，通过输入由彩色副载波调制的色差信号（RY）和（BY）来检测具有较高纯度的红色信号，减去红色，来自（RY）信号的正极性分量的（BY）信号的绝对值，并去除相减信号的负部分; Y信号补偿块包括：用于控制红色检测电路1的输出信号幅度的第一增益控制器50b和用于从亮度信号Y减去第一增益控制器50b的输出信号的减法器50a; （R-Y）信号补偿块，包括：用于控制红色检测电路1的输出信号幅度的第二增益控制器51b和用于将第二增益控制器51b的输出信号和输入（R-Y）信号相加的加法器51a; 和（BY）信号补偿块，包括：用于控制红色检测电路1的输出信号幅度的第三增益控制器52b，用于反转第三增益控制器52b的输出信号极性的极性反相器52c，极性反相器52c的输入信号或输出信号，用于识别输入（BY）信号的极性和控制开关电路52d的极性鉴别器52e和用于将开关电路52d的输出信号和输入（BY）信号相加的加法器52e 。

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