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。

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。

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。

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。

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）。

公开(公告)号：US08432495B2

公开(公告)日：2013-04-30

申请号：US12440471

申请日：2007-09-12

申请人： Katsumi Terai ,  Yoshihito Ohta ,  Kazushi Nozawa

发明人： Katsumi Terai ,  Yoshihito Ohta ,  Kazushi Nozawa

IPC分类号： H04N5/14 ,  H04N11/02

CPC分类号： H04N5/145 ,  G09G3/20 ,  G09G2320/0261 ,  G09G2320/106 ,  G09G2340/0435 ,  H04N7/0132 ,  H04N7/014

摘要： A motion compensator includes a video data selector, a video data editor, a vector reference data editor, a delay unit, a region data editor, and a delay unit. The video data editor outputs present frame video data and average video data. The vector reference data editor outputs previous compensation video data and present compensation video data. The region data editor outputs present frame region data, previous compensation region data, and present compensation region data. The video data selector selects one of four video data pieces based on the three pieces of region data and outputs the selected data to the video output unit.

摘要翻译： 运动补偿器包括视频数据选择器，视频数据编辑器，矢量参考数据编辑器，延迟单元，区域数据编辑器和延迟单元。 视频数据编辑器输出当前帧视频数据和平均视频数据。 向量参考数据编辑器输出先前的补偿视频数据和呈现补偿视频数据。 区域数据编辑器输出当前帧区域数据，先前补偿区域数据和当前补偿区域数据。 视频数据选择器基于三个区域数据选择四个视频数据之一，并将所选择的数据输出到视频输出单元。

公开(公告)号：US20090303392A1

公开(公告)日：2009-12-10

申请号：US12440471

申请日：2007-09-12

申请人： Katsumi Terai ,  Yoshihito Ohta ,  Kazushi Nozawa

发明人： Katsumi Terai ,  Yoshihito Ohta ,  Kazushi Nozawa

IPC分类号： H04N5/14

CPC分类号： H04N5/145 ,  G09G3/20 ,  G09G2320/0261 ,  G09G2320/106 ,  G09G2340/0435 ,  H04N7/0132 ,  H04N7/014

摘要： A motion compensator includes a video data selector, a video data editor, a vector reference data editor, a delay unit, a region data editor, and a delay unit. The video data editor outputs present frame video data and average video data. The vector reference data editor outputs previous compensation video data and present compensation video data. The region data editor outputs present frame region data, previous compensation region data, and present compensation region data. The video data selector selects one of four video data pieces based on the three pieces of region data and outputs the selected data to the video output unit.

摘要翻译： 运动补偿器包括视频数据选择器，视频数据编辑器，矢量参考数据编辑器，延迟单元，区域数据编辑器和延迟单元。 视频数据编辑器输出当前帧视频数据和平均视频数据。 向量参考数据编辑器输出先前的补偿视频数据和呈现补偿视频数据。 区域数据编辑器输出当前帧区域数据，先前补偿区域数据和当前补偿区域数据。 视频数据选择器基于三个区域数据选择四个视频数据之一，并将所选择的数据输出到视频输出单元。

公开(公告)号：US20110001874A1

公开(公告)日：2011-01-06

申请号：US12867123

申请日：2009-02-09

申请人： Yoshihito Ohta ,  Katsumi Terai

发明人： Yoshihito Ohta ,  Katsumi Terai

IPC分类号： H04N7/01

CPC分类号： H04N7/0135 ,  G09G3/3611 ,  G09G2320/0252 ,  G09G2340/0435 ,  G09G2340/16 ,  H04N7/0132

摘要： When a frame rate is doubled by repeating video signals of respective frames twice and then resultant video signals are supplied to the overdrive circuitry, the number of cases where the effect of overdrive is not sufficiently obtained is likely to increase undesirably. A double-speed conversion section inserts, between video signals of an N-1th frame and an Nth frame following the N-1th frame which are input video signals, an N-1th interpolation frame video signal at a signal level same as that of the N-1th frame video signal, and outputs resultant video signals at a frame rate twice as high as that of the input video signals. An interpolation frame correcting section corrects the N-1th interpolation frame video signal outputted from the double-speed conversion section, in accordance with the signal levels of the N-1th frame video signal and of the Nth frame video signal.

摘要翻译： 当通过重复各帧的视频信号将帧速率加倍时，然后将合成的视频信号提供给过驱动电路时，不能充分获得过驱动效果的情况的数量可能不期望地增加。 双速转换部分插入在作为输入视频信号的第N-1帧之后的第N-1帧和第N帧的视频信号之间的第N个第一插值帧视频信号，其信号电平与 N-1帧视频信号，并以与输入视频信号的两倍的帧速率输出合成视频信号。 内插帧校正部分根据第N-1帧视频信号和第N帧视频信号的信号电平来校正从双速转换部分输出的第N-1个插值帧视频信号。