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1. 发明授权

US06912015B1 Video display apparatus with vertical scan velocity modulation and video display method thereof 失效
标题翻译：具有垂直扫描速度调制的视频显示装置及其视频显示方法
公开(公告)号：US06912015B1
公开(公告)日：2005-06-28
申请号：US09719397
申请日：1999-06-07
申请人： Hideyo Uwabata , Katsumi Terai , Minoru Miyata , Toshiaki Kitahara , Naoji Okumura , Kazuto Tanaka
发明人： Hideyo Uwabata , Katsumi Terai , Minoru Miyata , Toshiaki Kitahara , Naoji Okumura , Kazuto Tanaka
IPC分类号： G09G1/00 , H04N3/30 , H04N3/32 , H04N5/44
CPC分类号： H04N3/30 , H04N3/32
摘要： A parallel scanning circuit outputs a parallel scanning signal for making forward and backward scanning lines parallel. A vertical correlation detection circuit detects a portion where the change in luminance in the vertical direction exceeds a predetermined value on the basis of a luminance signal, and outputs a movement control signal representing the distance of movement on the screen of the scanning line. A retrace period reversion circuit reverses the lime axis of the movement control signal in a retrace period. A clamping circuit clamps the movement control signal to a predetermined DC voltage at the timing of horizontal synchronizing signal. A synthesizing circuit synthesizes the parallel scanning signal and the movement control signal, and feeds a synthesized signal as a vertical velocity modulation signal to a vertical velocity modulation coil.
摘要翻译：并行扫描电路输出用于使前后扫描线平行的并行扫描信号。垂直相关检测电路基于亮度信号检测垂直方向的亮度变化超过预定值的部分，并且在扫描线的屏幕上输出表示移动距离的移动控制信号。回扫周期反转电路在回扫期间反转运动控制信号的石灰轴。钳位电路在水平同步信号的定时将移动控制信号钳位到预定的DC电压。合成电路合成并行扫描信号和移动控制信号，并将合成信号作为垂直速度调制信号馈送到垂直速度调制线圈。

2. 发明授权

US06429899B1 Video display apparatus with scan conversion and reversion and a video display method using scan conversion and reversion 失效
标题翻译：具有扫描转换和反转的视频显示装置和使用扫描转换和反转的视频显示方法
公开(公告)号：US06429899B1
公开(公告)日：2002-08-06
申请号：US09351847
申请日：1999-07-13
申请人： Yutaka Nio , Naoji Okumura , Katsumi Terai , Kazuto Tanaka , Satoshi Okamoto , Masaaki Fujita , Minoru Miyata
发明人： Yutaka Nio , Naoji Okumura , Katsumi Terai , Kazuto Tanaka , Satoshi Okamoto , Masaaki Fujita , Minoru Miyata
IPC分类号： H04N1100
CPC分类号： G09G1/165 , G09G1/167 , G09G2310/0229 , H04N3/30 , H04N7/01 , H04N7/012 , H04N7/0125
摘要： A video signal of an interlaced scanning system having 525 scanning lines and a vertical scanning frequency of 60 Hz is converted to a video signal having 1050 scanning lines and a vertical scanning frequency of 120 Hz, for displaying an image by bidirectional scanning. A vertical synchronizing signal is subjected to offset processing by a ¼ horizontal scanning period when an odd field is started, thereby keeping interlaced relation between odd and even fields. The vertical synchronizing signal is subjected to offset processing by a ½ horizontal scanning period every frame, so that the scanning direction for each scanning line is reversed every frame.
摘要翻译：具有525扫描线和60Hz的垂直扫描频率的隔行扫描系统的视频信号被转换为具有1050扫描线和120Hz的垂直扫描频率的视频信号，用于通过双向扫描显示图像。当奇数场开始时，垂直同步信号经过1/4水平扫描周期的偏移处理，从而保持奇数和偶数场之间的交错关系。垂直同步信号每帧进行1/2水平扫描周期的偏移处理，使得每帧扫描线的扫描方向反转。

3. 发明授权

US06529176B1 Image display and horizontal speed modulator 失效
标题翻译：图像显示和水平速度调制器
公开(公告)号：US06529176B1
公开(公告)日：2003-03-04
申请号：US09673361
申请日：2000-10-16
申请人： Naoji Okumura , Hiroki Monta , Hideyo Uwabata , Yutaka Nio , Kazuto Tanaka , Yutaka Nishikawa
发明人： Naoji Okumura , Hiroki Monta , Hideyo Uwabata , Yutaka Nio , Kazuto Tanaka , Yutaka Nishikawa
IPC分类号： G09G108
CPC分类号： H04N5/44504 , H04N3/30 , H04N21/42653
摘要： A video signal processing circuit synthesizes a video signal and a graphic signal on the basis of a display switching control signal, inverts a synthesized signal on the time axis for each of a forward scanning period and a backward scanning period, and output a display signal. A speed modulating signal control circuit inverts the binarized display switching control signal on the time axis for each of the forward scanning period and the backward scanning period, expands the pulse width thereof, and feeds the display switching control signal to a speed modulating signal generating circuit. The speed modulating signal generating circuit subjects a display signal to first-order differentiation, inverts the polarity of a differentiated signal in the backward scanning signal, sets a portion, corresponding to the graphic signal, in the differentiated signal on the basis of the display switching control signal at a zero level, and generates a speed modulating signal.
摘要翻译：视频信号处理电路根据显示切换控制信号合成视频信号和图形信号，在正向扫描期间和后退扫描周期中的每个正反转扫描期间对时间轴上的合成信号进行反转，并输出显示信号。速度调制信号控制电路在正向扫描周期和反向扫描期间中的每一个上对时间轴上的二值化显示切换控制信号进行反转，扩大其脉冲宽度，并将显示切换控制信号馈送到速度调制信号发生电路。速度调制信号发生电路对显示信号进行一阶微分，使反向扫描信号中的微分信号的极性反转，根据显示切换在微分信号中设定与图形信号对应的部分控制信号为零电平，并产生速度调制信号。

4. 发明授权

US06795588B1 Noise detector, noise detection method, signal processor and signal processing method 失效
标题翻译：噪声检测器，噪声检测方法，信号处理器和信号处理方法
公开(公告)号：US06795588B1
公开(公告)日：2004-09-21
申请号：US09628678
申请日：2000-07-28
申请人： Yutaka Nio , Katsumi Terai , Naoji Okumura , Kazuto Tanaka
发明人： Yutaka Nio , Katsumi Terai , Naoji Okumura , Kazuto Tanaka
IPC分类号： G06K940
CPC分类号： H04N1/409 , G06T5/002 , G06T2207/20192
摘要： A ringing detector detects mosquito noise and ringing for outputting an image signal smoothed by a horizontal/vertical high-pass filter when mosquito noise and ringing are detected while outputting the image signal as such when neither mosquito noise nor ringing is detected, thereby properly correcting the image signal without reducing the texture specific to the image signal also in a portion continuously exhibiting fine details.
摘要翻译：当检测到蚊式噪声和振铃同时输出图像信号时，振铃检测器检测蚊式噪声和振铃以输出由水平/垂直高通滤波器平滑的图像信号，当既没有检测到蚊式噪声也没有振铃时，正确地校正图像信号，而不会在连续呈现精细细节的部分中降低图像信号特有的纹理。

5. 发明授权

US06989872B2 Image distortion correcting device and image distortion correcting method 失效
公开(公告)号：US06989872B2
公开(公告)日：2006-01-24
申请号：US10088106
申请日：2001-07-23
申请人： Masanori Nakatsuji , Masanobu Tanaka , Hideyo Uwabata , Naoji Okumura , Kazunori Yamate
发明人： Masanori Nakatsuji , Masanobu Tanaka , Hideyo Uwabata , Naoji Okumura , Kazunori Yamate
IPC分类号： H04N3/23
CPC分类号： H04N3/2335
摘要： A write PLL circuit generates a write clock signal for writing a video signal into a line memory. A readout PLL circuit generates a read clock signal for reading out the video signal stored in the line memory. An inner pincushion distortion correction voltage generation circuit modulates a correction waveform in the horizontal scanning period of time by a correction waveform in the vertical scanning period of time, to generate an inner pincushion distortion correction waveform, and adds a DC correction pulse to the inner pincushion distortion correction waveform and outputs the inner pincushion distortion correction waveform as an inner pincushion distortion correction voltage. A capacitive coupling circuit superimposes the inner pincushion distortion correction voltage on an output voltage of a loop filter of the readout PLL circuit, and feeds the inner pincushion distortion correction voltage to a VCO as a control voltage.

6. 发明授权

US06424383B1 Apparatus for correcting vertical contours 失效
标题翻译：用于校正垂直轮廓的装置
公开(公告)号：US06424383B1
公开(公告)日：2002-07-23
申请号：US09284876
申请日：1999-04-22
申请人： Katsumi Terai , Naoji Okumura , Yutaka Nio , Kazuhito Tanaka
发明人： Katsumi Terai , Naoji Okumura , Yutaka Nio , Kazuhito Tanaka
IPC分类号： H04N521
CPC分类号： H04N5/208
摘要： An object is to provide a vertical contour correcting device for a video signal which reduces noise without deteriorating effect of the entire contour correction. A vertical contour correcting device (VCP1) which corrects vertical contour components (S1v, S1v′) of a video signal (S1) with a given quantity of correction (K) to enhance the vertical contour (Ev) of the video signal (S1) comprises a vertical contour component extracting device (3) for detecting said vertical contour components (S1v, S1v′) from said video signal (S1), a vertical contour component correlation detector (3, 29, 8c, 8d, 4) for detecting correlation between horizontally adjacent vertical contour components (Sb, Sb′, Sb′′) from said detected vertical contour components (S1v, S1v′), and a controller (5) for determining said quantity of correction (K) on the basis of said detected correlation (Sj1), thereby varying the quantity of correction (K) in accordance with the correlation (Sj1).
摘要翻译：一种垂直轮廓校正装置（VCP1），用于校正视频信号的垂直轮廓分量（S1v，S1v'）（垂直轮廓校正装置） S1）具有用于增强视频信号（S1）的垂直轮廓（Ev）的给定量的校正（K）包括垂直轮廓分量提取装置（3），用于从所述垂直轮廓分量（S1v，S1v'）检测所述垂直轮廓分量视频信号（S1），用于检测来自所检测的垂直轮廓分量（S1v）的水平相邻垂直轮廓分量（Sb，Sb'，Sb“）之间的相关性的垂直轮廓分量相关检测器（3,29,8c，8d，4），S1v'），以及控制器（5），用于根据所述检测到的相关（Sj1）确定所述校正量（K），从而根据相关（Sj1）改变校正量（K）。

7. 发明授权

US06738528B1 Block noise detector and block noise eliminator 有权
标题翻译：块噪声检测器和阻塞噪声消除器
公开(公告)号：US06738528B1
公开(公告)日：2004-05-18
申请号：US09463215
申请日：2000-01-21
申请人： Yutaka Nio , Satoshi Okamoto , Katsumi Terai , Naoji Okumura , Kazuhito Tanaka
发明人： Yutaka Nio , Satoshi Okamoto , Katsumi Terai , Naoji Okumura , Kazuhito Tanaka
IPC分类号： G06K940
CPC分类号： H04N19/865 , H04N19/527 , H04N19/80 , H04N19/86
摘要： A vertical HPF and a horizontal HPF receive a video signal 101, and extract only a high frequency component in the vertical/horizontal directions, respectively. Absolute value taking parts take an absolute value of the high frequency components, respectively, and change their values to positive values. A horizontal accumulating/adding part and a vertical accumulating/adding part accumulate/add an input signal so as to output a vertical one-dimensional signal and a horizontal one-dimensional signal, respectively, each periodically having a peak value in the respective vertical and horizontal directions. A horizontal peak detecting part detects a horizontal peak position according to the horizontal one-dimensional signal. A vertical peak detecting part detects a vertical peak position according to the vertical one-dimensional signal and identifies a format thereof. A binarization part obtains a block boundary image, according to the horizontal peak position and the vertical peak position, in which pixel positions having a peak are provided with 1 and remaining pixel positions are provided with 0. In this manner, even if a block boundary to eliminate block noise thereon is not clearly identified, it becomes possible to correctly detect and eliminate the block boundary.
摘要翻译：垂直HPF和水平HPF接收视频信号101，并且仅分别在垂直/水平方向提取高频分量。绝对值取零件分别取高频分量的绝对值，并将它们的值改为正值。水平累积/加法部分和垂直累积/相加部分分别累积/加入输入信号，以分别输出垂直一维信号和水平一维信号，每个信号周期性地具有在垂直方向上的峰值，水平方向。水平峰值检测部根据水平一维信号检测水平峰值位置。垂直峰值检测部分根据垂直一维信号检测垂直峰值位置并识别其格式。二值化部分根据水平峰值位置和垂直峰值位置获得块边界图像，其中具有峰值的像素位置为1，并且剩余像素位置被设置为0.以这种方式，即使块边界为了消除其上的块噪声没有被清楚地识别，可以正确地检测和消除块边界。

8. 发明授权

US5831684A Subpicture image signal vertical compression circuit 失效
标题翻译：子画面图像信号垂直压缩电路
公开(公告)号：US5831684A
公开(公告)日：1998-11-03
申请号：US657643
申请日：1996-05-30
申请人： Tomoko Morita , Naoji Okumura , Masahiro Tani
发明人： Tomoko Morita , Naoji Okumura , Masahiro Tani
IPC分类号： H04N5/45
CPC分类号： H04N5/45
摘要： A subpicture image signal vertical compression circuit for vertically compressing subpictures operating at respective synchronous timings different from that of the main picture when a plurality of image signals having respectively different synchronizations are displayed on an image display device. Depending on whether the field polarities of main and sub pictures are the same or not, the subpicture image signal vertical compression circuit generates suitable offsets for the first and the second fields to adjust the phases and prevent the inversion of the scan order in the vertical direction, at the first field and the second field of subpicture signal, after the phase adjustment to obtain a subpicture image with natural motion in the vertical direction.
摘要翻译：一种副图像图像信号垂直压缩电路，用于当在图像显示装置上显示具有不同同步的多个图像信号时，垂直压缩在与主图像不同的同步定时工作的子图像。根据主图像和副图像的场极性是否相同，子画面图像信号垂直压缩电路产生用于第一和第二场的适当偏移量以调整相位并防止垂直方向上的扫描顺序的反转在第一场和第二场子画面信号之后，进行相位调整，以在垂直方向上获得具有自然运动的子画面图像。

9. 发明授权

US5686970A Average luminance level detection apparatus and aspect ratio auto-discrimination apparatus for a television signal using the same 失效
标题翻译：平均亮度等级检测装置和使用其的电视信号的宽高比自动判别装置
公开(公告)号：US5686970A
公开(公告)日：1997-11-11
申请号：US569278
申请日：1995-12-08
申请人： Masahiro Tani , Naoji Okumura
发明人： Masahiro Tani , Naoji Okumura
IPC分类号： H04N5/44 , H04N5/46
CPC分类号： H04N7/0122 , Y10S348/913
摘要： A high precision aspect ratio auto-discrimination apparatus used for display apparatuses and television receivers comprising: an apparatus for detecting the upper edge and lower edge of a letter box picture through detecting the average luminance of every horizontal scan period; an apparatus for detecting respective average luminance levels in a plurality of specific regions in one field picture controlled by a horizontal synchronous signal and a vertical synchronous signal; and, an aspect ratio discrimination section to which the outputs of said both apparatuses are input.
摘要翻译：一种用于显示装置和电视接收机的高精度纵横比自动识别装置，包括：检测每个水平扫描周期的平均亮度的用于检测信箱图像的上边缘和下边缘的装置; 用于检测由水平同步信号和垂直同步信号控制的一个场图像中的多个特定区域中的各个平均亮度水平的装置; 以及输入所述两个装置的输出的宽高比判别部。

10. 发明授权

US5270815A Image compression processing apparatus having means for removing jitter contained at boundary between image and mask portions 失效
标题翻译：图像压缩处理设备具有用于去除包含在图像和掩模部分之间边界处的抖动的装置
公开(公告)号：US5270815A
公开(公告)日：1993-12-14
申请号：US791225
申请日：1991-11-13
申请人： Naoji Okumura , Hirohiko Sakashita
发明人： Naoji Okumura , Hirohiko Sakashita
IPC分类号： H04N5/262 , H04N7/01
CPC分类号： H04N7/0122
摘要： Input analog image signals are converted to digital image signals and applied to a demodulation circuit and a synchronous circuit. In the demodulation circuit, the digital image signals are demodulated and then compressed by a compression circuit. In the synchronous circuit, the digital image signals are synchronously processed so as to output horizontal pulses in accordance with a horizontal synchronizing signal contained in the digital image signals and so as to output phase difference information denoting a timing difference between the output of a horizontal pulse and an interpolated crossing of the horizontal synchronizing signal across a synchronizing threshold. A boundary at an image portion and a mask portion of an output image signal is corrected so that the boundary is substantially free of jitter using the horizontal pulses and the phase difference information output by the synchronous circuit. In this manner, a smooth boundary is obtained at the image portion and mask portion of the final compressed image.

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