公开(公告)号：US07045977B2

公开(公告)日：2006-05-16

申请号：US10470829

申请日：2002-11-01

申请人： Hiroshi Moribe ,  Nobuo Taketani ,  Ryuichi Shibutani ,  Masahiro Takeshima ,  Hisao Morita ,  Hiroshi Ando ,  Koji Matsuhira

发明人： Hiroshi Moribe ,  Nobuo Taketani ,  Ryuichi Shibutani ,  Masahiro Takeshima ,  Hisao Morita ,  Hiroshi Ando ,  Koji Matsuhira

IPC分类号： G09G1/04

CPC分类号： H04N3/223

摘要： The vertical/horizontal amplitude control device for controlling a vertical amplitude and a horizontal amplitude of an image display device for displaying a video signal includes a brightness level detector for detecting a brightness level of the video signal, a vertical amplitude controller for controlling the vertical amplitude based on the brightness level, and a horizontal amplitude controller for controlling the horizontal amplitude based on the brightness level. The device controls the vertical and horizontal amplitudes into constant without a delay from a change of a video signal even when the brightness level of the video signal abruptly changes.

摘要翻译： 用于控制用于显示视频信号的图像显示装置的垂直振幅和水平振幅的垂直/水平振幅控制装置包括用于检测视频信号的亮度级的亮度级检测器，用于控制垂直幅度的垂直幅度控制器 基于亮度水平，以及水平振幅控制器，用于基于亮度水平控制水平振幅。 即使当视频信号的亮度级别突然改变时，该装置将垂直和水平振幅控制为恒定，而不会因视频信号的改变而延迟。

公开(公告)号：US06970203B2

公开(公告)日：2005-11-29

申请号：US10225120

申请日：2002-08-22

申请人： Yutaka Otani ,  Masahiko Sasada ,  Nobuo Taketani ,  Masahiro Takeshima ,  Hiroshi Moribe

发明人： Yutaka Otani ,  Masahiko Sasada ,  Nobuo Taketani ,  Masahiro Takeshima ,  Hiroshi Moribe

IPC分类号： H04N9/73 ,  H04N9/64 ,  H04N9/72 ,  H04N5/68

CPC分类号： H04N9/645 ,  H04N9/72

摘要： The automatic cut-off system includes a video data processing circuit, a cut-off control circuit, a drive circuit, and a level control section. The video data processing circuit adds a cut-off reference pulse having a predetermined level to primary-color signals of red (R), green (G) and blue (B) at different timings within a single vertical blanking interval, and outputs latch timing signals respectively indicating the timings. The cut-off control circuit shifts a level of each primary-color signal having the cut-off reference pulse added thereto based on a corresponding cut-off control signal. The drive circuit drives each cathode of a CRT (cathode-ray tube) based on a corresponding one of the shifted primary-color signals, and outputs a voltage corresponding to each cathode current as a common feedback signal. The level control section latches the feedback signal in response to each latch timing signal, and outputs the cut-off control signal of one of the primary-color signals.

摘要翻译： 自动切断系统包括视频数据处理电路，截止控制电路，驱动电路和电平控制部分。 视频数据处理电路在单个垂直消隐间隔内的不同定时将具有预定电平的截止参考脉冲与红（R），绿（G）和蓝（B）的原色信号相加，并输出锁定定时 信号分别表示时间。 截止控制电路基于对应的截止控制信号，移动其中附加有截止参考脉冲的每个原色信号的电平。 驱动电路基于相应的一个移位的原色信号驱动CRT（阴极射线管）的每个阴极，并且输出与每个阴极电流相对应的电压作为公共反馈信号。 电平控制部分响应于每个锁存定时信号锁存反馈信号，并输出一个原色信号的截止控制信号。

公开(公告)号：US06188445B1

公开(公告)日：2001-02-13

申请号：US09260358

申请日：1999-03-01

申请人： Nobuo Taketani

发明人： Nobuo Taketani

IPC分类号： H04N977

CPC分类号： H04N9/78

摘要： In a signal processing circuit for separating a color video signal into a luminance signal and a chrominance signal, whether the correlation relating to the high frequency component of luminance signal and chrominance signal of color video input signal is high or low before and after one horizontal scanning period is detected by a vertical correlation detecting circuit, and the presence or absence of correlation of the detected output signal in the horizontal scanning line is detected by a horizontal correlation detecting circuit. The output signal of the horizontal correlation detecting circuit before and after one horizontal scanning period is supplied into a logic circuit, and depending on the gate output signal obtained therein, the high frequency component of luminance signal and chrominance signal before and after one horizontal scanning period are processed in an operation processing circuit, and a chrominance signal is delivered. Furthermore, this chrominance signal can be obtained through a variable filter circuit capable of changing over the band pass characteristic depending on the output signal of the logic circuit.

摘要翻译： 在用于将彩色视频信号分离为亮度信号和色度信号的信号处理电路中，在一次水平扫描之前和之后，与亮度信号的高频分量和彩色视频输入​​信号的色度信号相关的相关性是高还是低 通过垂直相关检测电路检测周期，并且通过水平相关检测电路检测水平扫描线中检测到的输出信号的相关性的存在或不存在。 在一个水平扫描周期之前和之后的水平相关检测电路的输出信号被提供给逻辑电路，并且根据其中获得的栅极输出信号，在一个水平扫描周期之前和之后的亮度信号和色度信号的高频分量 在运算处理电路中进行处理，并输出色度信号。 此外，该色度信号可以通过能够根据逻辑电路的输出信号来改变带通特性的可变滤波器电路来获得。

公开(公告)号：US5956095A

公开(公告)日：1999-09-21

申请号：US866883

申请日：1997-05-30

申请人： Nobuo Taketani ,  Hiroshi Ando ,  Tsuneo Matsukura ,  Hiroyasu Shimaoka ,  Hitoshi Adachi

发明人： Nobuo Taketani ,  Hiroshi Ando ,  Tsuneo Matsukura ,  Hiroyasu Shimaoka ,  Hitoshi Adachi

IPC分类号： H04N5/21 ,  H04N5/44 ,  H04N5/14

CPC分类号： H04N5/21

摘要： A noise suppression apparatus suppresses noise of a luminance signal, for example, at a fringe of area of reception in a television receiver. The noise suppression apparatus includes a tuner circuit, an intermediate frequency amplification circuit, a video detection/amplification circuit, an AGC detection/amplification circuit, an RF AGC circuit, a sound/chrominance signal separation circuit, a luminance signal processing circuit and a luminance signal noise suppression circuit.

摘要翻译： 噪声抑制装置抑制例如在电视接收机的接收区域的边缘处的亮度信号的噪声。 噪声抑制装置包括调谐器电路，中频放大电路，视频检测/放大电路，AGC检测/放大电路，RF AGC电路，声/色度信号分离电路，亮度信号处理电路和亮度 信号噪声抑制电路。

公开(公告)号：US06597404B1

公开(公告)日：2003-07-22

申请号：US09623258

申请日：2000-12-11

申请人： Hiroshi Moribe ,  Nobuo Taketani ,  Hisao Morita ,  Hiroshi Ando ,  Ryuichi Shibutani

发明人： Hiroshi Moribe ,  Nobuo Taketani ,  Hisao Morita ,  Hiroshi Ando ,  Ryuichi Shibutani

IPC分类号： H03L700

CPC分类号： H04N5/126 ,  H04N5/46

摘要： A phase controller of a horizontal drive pulse fed into a horizontal deflection circuit supplying a horizontal deflection pulse, and a control method of the same are disclosed. A frequency discriminator identifies a format of video-input-signal by detecting a frequency of the horizontal sync signal. A reference phase generator generates a reference phase signal based on the output from the frequency discriminator. A sawtooth waveform generator generates a sawtooth waveform signal responsive to the output from the frequency discriminator. A phase difference voltage detector outputs a phase difference voltage responsive to the phase difference between the reference phase signal and the horizontal deflection pulse. A phase control signal generator generates a phase control signal using the phase difference voltage and the sawtooth waveform signal. Horizontal drive pulse generator outputs a horizontal drive pulse having a phase responsive to the phase control signal. The phase controller and the phase control method as structured above realize a stable phase control of the horizontal drive pulses in video display devices.

摘要翻译： 公开了供给水平偏转脉冲的水平偏转电路的水平驱动脉冲的相位控制器及其控制方法。 频率鉴别器通过检测水平同步信号的频率来识别视频输入信号的格式。 参考相位发生器基于来自鉴频器的输出产生参考相位信号。 锯齿波形发生器响应于来自鉴频器的输出产生锯齿波形信号。 相位差电压检测器响应于参考相位信号和水平偏转脉冲之间的相位差输出相位差电压。 相位控制信号发生器使用相位差电压和锯齿波形信号产生相位控制信号。 水平驱动脉冲发生器输出具有响应于相位控制信号的相位的水平驱动脉冲。 上述相位控制器和相位控制方法实现了视频显示装置中水平驱动脉冲的稳定相位控制。

公开(公告)号：US06567129B1

公开(公告)日：2003-05-20

申请号：US09674845

申请日：2000-11-07

申请人： Nobuo Taketani ,  Hiroshi Moribe ,  Hisao Morita ,  Hiroshi Ando ,  Ryuichi Shibutani

发明人： Nobuo Taketani ,  Hiroshi Moribe ,  Hisao Morita ,  Hiroshi Ando ,  Ryuichi Shibutani

IPC分类号： H04N966

CPC分类号： H04N9/66

摘要： A color demodulation apparatus having color demodulation capabilities as the conventional ones, with its size reduced by sharing part of processing circuit therein is provided. An adder circuit 10 and a SW circuit 11 shift the phase of a ramp wave generated by a VCO circuit 9 alternately 90 degrees and 180 degrees for each clock. A SIN data generator circuit 12 generates a phase alternate SIN wave signal from the shifted ramp wave. A multiplier circuit 3 performs R-Y and B-Y demodulation through multiplexing based on the phase alternate SIN wave signal. An accumulator circuit 6 accumulates burst signals of each of R-Y and B-Y signals of the demodulated, multiplexed signal. A second load hold circuit 8 separately outputs an R-Y burst signal to the VCO circuit 9, and a B-Y burst signal to a comparator circuit 13, constituting two feedback loops. A first load hold circuit 5 separates R-Y and B-Y signals from the multiplexed signal, and outputs these two signals.

摘要翻译： 提供具有常规颜色解调能力的彩色解调装置，其中通过共享部分处理电路而减小其尺寸。加法器电路10和SW电路11交替地移位由VCO电路9产生的斜波的相位 每个时钟90度和180度。 SIN数据生成电路12从移位斜坡波生成相位交替SIN波信号。 乘法器电路3通过基于相位交替SIN波信号的复用来执行R-Y和B-Y解调。 累加器电路6累积解调复用信号的R-Y和B-Y信号中的每一个的脉冲信号。 第二负载保持电路8分别向VCO电路9输出R-Y突发信号，并将B-Y突发信号输出到比较器电路13，构成两个反馈回路。 第一负载保持电路5将R-Y和B-Y信号与多路复用信号分离，并输出这两个信号。

公开(公告)号：US5959695A

公开(公告)日：1999-09-28

申请号：US844500

申请日：1997-04-18

申请人： Hiroko Sugimoto ,  Atsuhisa Kageyama ,  Nobuo Taketani

发明人： Hiroko Sugimoto ,  Atsuhisa Kageyama ,  Nobuo Taketani

IPC分类号： H04N9/78

CPC分类号： H04N9/78

摘要： A 2-line YC separation device reduces the number of delay circuits used for horizontal scanning time delay and minimizing arithmetic operation errors of comb-line filters. The device comprises a first delay circuit for delaying an input video signal for a horizontal scanning period; a first band-pass filter circuit whose input is the input video signal, a second band-pass filter circuit whose input is the output signal of the first delay circuit, a Y-correlation detector whose input is the output signals of the first and second band-pass filter circuits, a C-correlation detector whose input is the output signals of the first and second band-pass filter circuits, a second delay circuit for delaying the output signal of the Y-correlation detector for a horizontal scanning period, a third delay circuit for delaying the output signal of the C-correlation detector for a horizontal scanning period; and an operational circuit whose input is the output signals of the Y-correlation detector and C-correlation detector and the output signals of the second and third delay circuits.

摘要翻译： 2线YC分离装置减少了用于水平扫描时间延迟的延迟电路的数量，并减少了梳状滤波器的算术运算误差。 该装置包括用于在水平扫描期间延迟输入视频信号的第一延迟电路; 第一带通滤波器电路，其输入是输入视频信号;第二带通滤波器电路，其输入是第一延迟电路的输出信号; Y相关检测器，其输入是第一和第二输出信号的输出信号 带通滤波器电路，其输入是第一和第二带通滤波器电路的输出信号的C相关检测器，用于延迟Y相关检测器在水平扫描期间的输出信号的第二延迟电路， 第三延迟电路，用于在水平扫描期间延迟C相关检测器的输出信号; 以及其输入是Y相关检测器和C相关检测器的输出信号和第二和第三延迟电路的输出信号的运算电路。

公开(公告)号：US08130325B2

公开(公告)日：2012-03-06

申请号：US12446039

申请日：2007-11-26

申请人： Noriyuki Iwakura ,  Nobuo Taketani ,  Takeru Yamashita ,  Shozo Tozaki ,  Takashi Ootomo ,  Hiroshi Yoshinari

发明人： Noriyuki Iwakura ,  Nobuo Taketani ,  Takeru Yamashita ,  Shozo Tozaki ,  Takashi Ootomo ,  Hiroshi Yoshinari

IPC分类号： H04N5/57 ,  H04N5/14

CPC分类号： H04N5/147 ,  G09G3/288 ,  G09G2320/0242 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2360/16

摘要： A scene change detecting circuit (1) detects a scene change of video. An average luminance level operating circuit (2) calculates an average luminance level (APL) of a video signal (VD). A luminance overdrive amount calculating circuit (3) calculates a luminance overdrive amount (OD) based on the average luminance level (APL). A time-linked attenuating circuit (7) outputs a power consumption limit correction amount (PA) by attenuating the luminance overdrive amount (OD) with an elapse of time from a point in time of detecting the scene change. An adder (8) adds the power consumption limit correction amount (PA) and a reference power consumption limit value (Lp) to output the addition result as a power consumption limit amount (PL). An ABL circuit (4) calculates a luminance limit amount (BL) based on luminance limit characteristics, the average luminance level (APL) and the power consumption limit amount (PL). A luminance level control circuit (5) determines a display drive condition (BC) based on the luminance limit amount (BL). A PDP drive controller (6) drives a display panel (20) based on the video signal (VD) and the display driving condition (BC).

摘要翻译： 场景变化检测电路（1）检测视频的场景变化。 平均亮度电平操作电路（2）计算视频信号（VD）的平均亮度电平（APL）。 亮度过驱动量计算电路（3）基于平均亮度电平（APL）来计算亮度过驱动量（OD）。 时间链接的衰减电路（7）通过从检测到场景变化的时间点开始经过时间来衰减亮度过驱动量（OD）来输出功耗限制校正量（PA）。 加法器（8）将功耗限制修正量（PA）和参考功耗限制值（Lp）相加，作为功耗限制量（PL）输出相加结果。 ABL电路（4）基于亮度极限特性，平均亮度电平（APL）和功耗限制量（PL）来计算亮度限制量（BL）。 亮度级控制电路（5）基于亮度极限量（BL）确定显示驱动条件（BC）。 PDP驱动控制器（6）基于视频信号（VD）和显示驱动条件（BC）驱动显示面板（20）。

公开(公告)号：US06597407B1

公开(公告)日：2003-07-22

申请号：US09286342

申请日：1999-04-05

申请人： Nobuo Taketani ,  Atsuhisa Kageyama

发明人： Nobuo Taketani ,  Atsuhisa Kageyama

IPC分类号： H04N5208

CPC分类号： H04N5/208 ,  H04N5/142

摘要： A contour correction circuit includes a delay circuit for delaying an input video signal, a corrected waveform generating circuit for generating a contour correction signal out of the input video signal, a variable amplifier for controlling an amplitude of the contour correction signal, a contour control circuit for outputting a gain control signal for controlling a gain in the variable amplifier,. and a first adding circuit for adding an output signal of the delay circuit to an output of the amplifier. When an amplitude-change in an edge portion of the input video signal is over a given level, the smaller amount of contour is corrected at the larger amplitude change. Therefore, even if a signal of a high contrast ratio is adjacent to a signal of a low contrast ratio, desirable contour corrections can be provided to respective signal components.

摘要翻译： 轮廓校正电路包括用于延迟输入视频信号的延迟电路，用于从输入视频信号产生轮廓校正信号的校正波形发生电路，用于控制轮廓校正信号的幅度的可变放大器，轮廓控制电路 用于输出用于控制可变放大器中的增益的增益控制信号。 以及第一加法电路，用于将延迟电路的输出信号加到放大器的输出端。 当输入视频信号的边缘部分的幅度变化超过给定的电平时，在更大的振幅变化下校正较小的轮廓量。 因此，即使高对比度信号与低对比度信号相邻，也可以对相应的信号分量提供期望的轮廓校正。

公开(公告)号：US06538702B1

公开(公告)日：2003-03-25

申请号：US09659834

申请日：2000-09-11

申请人： Nobuo Taketani ,  Hiroshi Moribe ,  Hisao Morita ,  Ryuichi Shibutani ,  Hiroshi Ando

发明人： Nobuo Taketani ,  Hiroshi Moribe ,  Hisao Morita ,  Ryuichi Shibutani ,  Hiroshi Ando

IPC分类号： H04N966

CPC分类号： H04N9/78 ,  H04N5/455 ,  H04N9/642

摘要： A color signal reproducing circuit having A/D converter 101, sync separator 102, YC separator 103, gain controller 105, multipliers 106 and 107, low-pass filters 108 and 109, burst-period cumulative adders 110 and 111, SINCOS generator 112, clock generator 113, and ramp-wave generator 114. The simple structure allows a color signal reproducing circuit to be used commonly in a different television systems without changing its clock frequency considerably in accordance with broadcasting systems and also achieves YC separation and color signal demodulation from analog composite signal with a higher degree of precision.

摘要翻译： 具有A / D转换器101，同步分离器102，YC分离器103，增益控制器105，乘法器106和107，低通滤波器108和109，突发时段累积加法器110和111，SINCOS发生器112， 时钟发生器113和斜波发生器114.简单的结构允许彩色信号再现电路在不同电视系统中通用，而不会根据广播系统显着地改变其时钟频率，并且还实现了YC分离和彩色信号解调 模拟复合信号具有较高的精度。