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1. 发明授权

US4984068A Motion-adaptive device for separating luminance signal and color signal 失效
标题翻译：用于分离亮度信号和颜色信号的运动自适应装置
公开(公告)号：US4984068A
公开(公告)日：1991-01-08
申请号：US489167
申请日：1990-03-06
申请人： Kenji Sugiyama , Yasuyuki Katayama , Nobuyuki Suzuki , Tomoaki Uchida , Tatsushi Kouguchi
发明人： Kenji Sugiyama , Yasuyuki Katayama , Nobuyuki Suzuki , Tomoaki Uchida , Tatsushi Kouguchi
IPC分类号： H04N9/78
CPC分类号： H04N9/78
摘要： A motion detector detects motion of pictures represented by a composite color television signal and generates a motion signal representing the detected motion of pictures. A spatiotemporal filter extracts a color signal from the composite color television signal. A subtractor subtracts the color signal from the composite color television signal and thereby generates a luminance signal. The spatiotemporal filter includes a spatial filter. A pass band of the spatial filler is varied in accordance with the motion signal.
摘要翻译：运动检测器检测由复合彩色电视信号表示的图像的运动，并产生表示检测到的图像的运动的运动信号。时空滤波器从复合彩色电视信号中提取颜色信号。减法器从复合彩色电视信号中减去颜色信号，从而生成亮度信号。时空滤波器包括空间滤波器。空间填充物的通带根据运动信号而变化。

2. 发明授权

US4982271A Motion-adaptive device for separating luminance signal and color signal 失效
标题翻译：用于分离亮度信号和颜色信号的运动自适应装置
公开(公告)号：US4982271A
公开(公告)日：1991-01-01
申请号：US289804
申请日：1988-12-27
申请人： Kenji Sugiyama , Yasuyuki Katayama , Nobuyuki Suzuki , Tomoaki Uchida , Tatsushi Kouguchi
发明人： Kenji Sugiyama , Yasuyuki Katayama , Nobuyuki Suzuki , Tomoaki Uchida , Tatsushi Kouguchi
IPC分类号： H04N9/78
CPC分类号： H04N9/78
摘要： A motion detector detects motion of pictures represented by a composite color television signal and generates a motion signal representing the detected motion of pictures. A spatiotemporal filter extracts a color signal from the composite color television signal. A subtracter subtracts the color signal from the composite color television signal and thereby generates a luminance signal. The spatiotemporal filter includes a spatial filter. A pass band of the spatial filter is varied in accordance with the motion signal.
摘要翻译：运动检测器检测由复合彩色电视信号表示的图像的运动，并产生表示检测到的图像的运动的运动信号。时空滤波器从复合彩色电视信号中提取颜色信号。减法器从复合彩色电视信号中减去颜色信号，从而生成亮度信号。时空滤波器包括空间滤波器。空间滤波器的通带根据运动信号而变化。

3. 发明授权

US4984077A Signal converting apparatus 失效
标题翻译：信号转换装置
公开(公告)号：US4984077A
公开(公告)日：1991-01-08
申请号：US456662
申请日：1989-12-28
申请人： Tomoaki Uchida
发明人： Tomoaki Uchida
IPC分类号： H04N7/01 , H04N7/015 , H04N7/12
CPC分类号： H04N7/125 , H04N7/0152
摘要： A signal converting apparatus includes an intra-field interpolation divice for subjecting a MUSE television signal to an intra-field interpolation, and an inter-frame interpolation device for subjecting the MUSE television signal to an inter-frame interpolation. A mixer mixes an output signal from the intra-field interpolation device and an output signal from the inter-frame interpolation device. An output signal from the mixer is converted into a corresponding signal of a predetermined scan format.
摘要翻译：信号转换装置包括用于对MUSE电视信号进行场内插值的场内插值分配，以及用于对MUSE电视信号进行帧间插值的帧间插值装置。混频器混合来自场内插值装置的输出信号和来自帧间插值装置的输出信号。来自混频器的输出信号被转换成预定扫描格式的对应信号。

4. 发明授权

US4231064A Vertical synchronization circuit for a cathode-ray tube 失效
标题翻译：用于阴极射线管的垂直同步电路
公开(公告)号：US4231064A
公开(公告)日：1980-10-28
申请号：US39333
申请日：1979-05-15
申请人： Tomoaki Uchida
发明人： Tomoaki Uchida
IPC分类号： H04N5/12 , H04N5/04
CPC分类号： H04N5/126
摘要： A vertical synchronization circuit for a cathode-ray tube comprises an oscillator for generating, in response to the horizontal synchronizing signal of an input video signal, clock pulses at twice the horizontal scanning frequency; a counter for counting the clock pulses and producing a first pulse when the pulse count reaches 525; a waveform shaping circuit receiving the vertical synchronizing signal of the input video signal and the clock pulses for producing a second pulse; a circuit for shaping the first pulse to produce a phase-comparing pulse; a phase comparator for comparing the phases of the phase-comparing pulse and the second pulse; a switching circuit controlled by the phase comparator for supplying the second pulse to the counter as a reset pulse when the phase comparator does not detect continuous coincidence during a specific vertical scanning period and for supplying the first pulse to the counter as a reset pulse when the phase detector detects continuous coincidence during the vertical scanning periods; and a circuit for shaping pulses produced by the counter in synchronism with the received vertical synchronizing signal.
摘要翻译：用于阴极射线管的垂直同步电路包括：振荡器，用于响应于输入视频信号的水平同步信号产生两倍于水平扫描频率的时钟脉冲; 用于计数时钟脉冲并在脉冲计数达到525时产生第一脉冲的计数器; 波形整形电路接收输入视频信号的垂直同步信号和用于产生第二脉冲的时钟脉冲; 用于对第一脉冲进行整形以产生相位比较脉冲的电路; 相位比较器，用于比较相位比较脉冲和第二脉冲的相位; 当相位比较器在特定的垂直扫描周期期间没有检测到连续一致时，由相位比较器控制的开关电路用于将第二脉冲提供给计数器作为复位脉冲，并且当第一脉冲作为复位脉冲提供给计数器时，相位检测器在垂直扫描期间检测连续重合; 以及用于与接收的垂直同步信号同步地整形由计数器产生的脉冲的电路。

5. 发明申请

US20080100729A1 GAMMA-CORRECTION CIRCUIT FOR GRAPHIC SIGNALS 有权
标题翻译：图形信号的伽马校正电路
公开(公告)号：US20080100729A1
公开(公告)日：2008-05-01
申请号：US11923177
申请日：2007-10-24
申请人： Tomoaki Uchida
发明人： Tomoaki Uchida
IPC分类号： H04N5/20
CPC分类号： H04N5/202
摘要： The present invention provides a gamma-correction circuit, which is capable to decrease the noise in graphic signal or make the noise not clearly sensible while carrying out gamma-correction on the graphic signals. In the circuit, a high-pass filter is used to decrease the noise in a graphic signal, a gamma-correction section is used for carrying out gamma-correction on the noise suppressed graphic signal, meanwhile a threshold handling section is used for threshold treatment on the high frequency component of the graphic signal to decrease noise, and then the output of the threshold handling section is combined with the gamma-corrected graphic signal through an adder.
摘要翻译：本发明提供一种伽马校正电路，其能够在对图形信号进行伽马校正的同时，降低图形信号中的噪声或使噪声不明显。在该电路中，使用高通滤波器来降低图形信号中的噪声，伽马校正部分用于对噪声抑制图形信号进行伽马校正，同时阈值处理部分用于阈值处理在图形信号的高频分量上降低噪声，然后通过加法器将阈值处理部分的输出与伽马校正图形信号组合。

6. 发明申请

US20080101695A1 Color reproduction correction circuit and correction method 审中-公开
标题翻译：彩色再现校正电路及校正方法
公开(公告)号：US20080101695A1
公开(公告)日：2008-05-01
申请号：US11977328
申请日：2007-10-24
申请人： Tomoaki Uchida
发明人： Tomoaki Uchida
IPC分类号： G06K9/00
CPC分类号： H04N9/67 , H04N9/68
摘要： The invention discloses a color reproduction correction circuit and correction method, it comprises: a reverse gamma correction section for receiving at the reception side the video signal, which has been gamma corrected at the transmission side, and the video signal is corrected by the reverse gamma correction to become linear data; a correction matrix transformation section for transforming the linear data, which has been performed a reverse gamma correction, through a correction matrix, which is formed by the product of the first transformation matrix and the second transformation matrix, wherein said first transformation matrix transforms the video signal of RGB system to the video signal of XYZ system at the transmission side, and said second transformation matrix transforms the video signal of XYZ system to the video signal of RGB system at the reception side. By using the color reproduction correction circuit of the invention, even though the color reproduction region of the device at the transmission side is different from that of the device at the reception side, the color reproduction can still be performed more accurately, and when the color reproduction region of the display device at the reception side is wider than that of the display device at the transmission side, the color reproduction can be performed by extending automatically the color reproduction region.
摘要翻译：本发明公开了一种彩色再现校正电路和校正方法，它包括：反向伽马校正部分，用于在接收端接收在发送侧被伽马校正的视频信号，视频信号由反向伽马校正校正成为线性数据; 校正矩阵变换部分，用于通过由第一变换矩阵和第二变换矩阵的乘积形成的校正矩阵来变换已经执行反向伽马校正的线性数据，其中所述第一变换矩阵将视频 RGB系统的信号发送到XYZ系统的视频信号，所述第二变换矩阵将XYZ系统的视频信号转换为接收侧的RGB系统的视频信号。通过使用本发明的色彩再现校正电路，即使发送侧的设备的色彩再现区域与接收侧的设备的色彩再现区域不同，仍可以更精确地进行色彩再现，并且当颜色接收侧的显示装置的再现区域比发送侧的显示装置的再现区域宽，可以通过自动延伸色彩再现区域来进行彩色再现。

7. 发明授权

US07123308B2 Video data correction capable of exactly correcting hue, chroma and/or luminance signal 有权
标题翻译：能够精确校正色调，色度和/或亮度信号的视频数据校正
公开(公告)号：US07123308B2
公开(公告)日：2006-10-17
申请号：US10384696
申请日：2003-03-11
申请人： Tomoaki Uchida
发明人： Tomoaki Uchida
IPC分类号： H04N9/64
CPC分类号： H04N9/68 , H04N9/643
摘要： An angle calculation unit calculates an angle formed by color difference signals R-Y, B-Y of each input pixel. Correction gain calculation units use the angle as a parameter to generate correction gains of hue, chroma, luminance (Y) gamma, and chroma (C) gamma for only correction regions. Accumulators accumulate the respective correction gains. In a circuit including from a multiplier (10) to a multiplier (18), the color difference signals R-Y, B-Y are multiplied by the correction gains of hue and chroma to correct the hue and chroma. A luminance/color difference gamma processing unit uses a correction function and correction gains of Y, C gammas to gamma-correct a luminance signal Y and color difference signals R-Y, B-Y.
摘要翻译：角度计算单元计算由每个输入像素的色差信号R-Y，B-Y形成的角度。校正增益计算单元使用角度作为参数，仅为校正区域产生色调，色度，亮度（Y）伽马和色度（C）伽马的校正增益。累加器累积相应的校正增益。在从乘法器（10）到乘法器（18）的电路中，色差信号R-Y，B-Y乘以色调和色度的校正增益，以校正色相和色度。亮度/色差伽马处理单元使用校正函数和Y，C伽马的校正增益来伽玛校正亮度信号Y和色差信号R-Y，B-Y。

8. 发明授权

US07394932B2 Video signal processor and method of processing video signal 有权
标题翻译：视频信号处理器和视频信号处理方法
公开(公告)号：US07394932B2
公开(公告)日：2008-07-01
申请号：US10967269
申请日：2004-10-19
申请人： Shingo Kida , Tomoaki Uchida
发明人： Shingo Kida , Tomoaki Uchida
IPC分类号： G06K9/00 , G06K9/40 , G03F3/08
CPC分类号： H04N9/77 , G09G3/20 , G09G2320/0276 , H04N5/20 , H04N5/202 , H04N9/68
摘要： An input video signal is corrected based on a gradation correction curve. Generated first is histogram data which indicates distribution of each of a plurality of levels at which a luminance signal component of the input video signal is divided from the lowest to the highest luminance level per specific unit of image. Produced next is at least a first gain based on the distribution of the histogram data. At least the first gain and the histogram data are processed to produce a plural number of data for a gradation correction curve. The gradation correction curve is generated based on the plural number of data. The input video signal is then corrected based on the gradation correction curve.
摘要翻译：基于灰度校正曲线校正输入视频信号。首先产生的是直方图数据，其指示输入视频信号的亮度信号分量从每个特定图像单位的最低亮度级别到最高亮度级别的多个级别中的每一个的分布。根据直方图数据的分布，下一步产生至少一个第一增益。处理至少第一增益和直方图数据以产生用于灰度校正曲线的多个数据。基于多个数据生成灰度校正曲线。然后基于灰度校正曲线校正输入视频信号。

9. 发明授权

US6088065A Contour correction apparatus and method 有权
标题翻译：轮廓校正装置及方法
公开(公告)号：US6088065A
公开(公告)日：2000-07-11
申请号：US128931
申请日：1998-08-05
申请人： Tomoaki Uchida
发明人： Tomoaki Uchida
IPC分类号： G06T5/00 , H04N5/21
CPC分类号： G06T5/004 , G06T2207/10016 , G06T2207/10024 , G06T2207/20192
摘要： In a contour correction apparatus, a first sample is selected from among at least five plural samples of an input digital video signal as an indication of an upper limit value. The plural samples correspond to neighboring pixels respectively. The first sample has a value greater than a center value among values of the plural samples. A second sample is selected from among at least the five plural samples as an indication of a lower limit value. The second sample has a value smaller than the center value among the values of the plural samples. High-frequency signal components are generated with respect to a center sample among the plural samples. The high-frequency signal components are added to the center sample among the plural samples to generate an addition-resultant signal. A value of the addition-resultant signal is limited to within a range between the upper limit value and the lower limit value.
摘要翻译：在轮廓校正装置中，从输入数字视频信号的至少五个多个样本中选择第一样本作为上限值的指示。多个样本分别对应于相邻像素。第一样本具有大于多个样本的值中的中心值的值。从至少五个多个样本中选择第二个样本作为下限值的指示。第二样本具有比多个样本的值中的中心值小的值。相对于多个样本中的中心样本生成高频信号分量。将高频信号分量添加到多个样本中的中心采样中，以生成相加结果信号。相加结果信号的值被限制在上限值和下限值之间的范围内。

10. 发明授权

US4204219A Noise cancellation circuit 失效
标题翻译：噪声消除电路
公开(公告)号：US4204219A
公开(公告)日：1980-05-20
申请号：US932291
申请日：1978-08-09
申请人： Tomoaki Uchida
发明人： Tomoaki Uchida
IPC分类号： H04N5/08 , H04N5/21 , H04N5/213 , H04N5/44
CPC分类号： H04N5/21
摘要： The peak value of an input signal is detected for comparison with the instantaneous value of the input signal to control the detected peak value at a constant level in a feedback loop. When the instantaneous value of the input signal exceeds a certain limit established relative to the controlled peak level, an offset voltage is generated to cancel the noise.
摘要翻译：检测输入信号的峰值以与输入信号的瞬时值进行比较，以在反馈回路中将检测到的峰值控制在恒定电平。当输入信号的瞬时值超过相对于受控峰值电平建立的一定限度时，产生偏移电压以消除噪声。

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