公开(公告)号：US3997797A

公开(公告)日：1976-12-14

申请号：US645873

申请日：1975-12-31

申请人： Hiroshi Sahara ,  Yutaka Tanaka ,  Toshinobu Isobe

发明人： Hiroshi Sahara ,  Yutaka Tanaka ,  Toshinobu Isobe

IPC分类号： H03D3/08 ,  H03D3/10 ,  H04N9/64 ,  H04N11/18 ,  H03D3/26

CPC分类号： H03D3/08 ,  H04N11/186 ,  H04N5/44

摘要： A frequency discriminating circuit having a double tuned circuit with a transformer, which has a first and second resonant circuits. The first resonant circuit is composed of a capacitor, a primary winding of the transformer and a first variable inductance element and the second resonant circuit is composed of a capacitor, a secondary winding of the transformer and second and third variable inductance elements, wherein the quality factor Q of the second resonant circuit is much larger than that Q of the first resonant circuit. The center frequency of the frequency-response characteristic (so-called S characteristic) of the discriminating circuit can be adjusted by adjusting the second and third variable inductance elements and the linearity of the frequency response characteristic of the discriminating circuit can be adjusted by adjusting the first variable inductance element.

摘要翻译： 一种具有带有变压器的双调谐电路的频率判别电路，其具有第一和第二谐振电路。 第一谐振电路由电容器，变压器的初级绕组和第一可变电感元件组成，第二谐振电路由电容器，变压器的次级绕组和第二和第三可变电感元件组成，其中质量 第二谐振电路的因子Q比第一谐振电路的Q大得多。 鉴别电路的频率响应特性（所谓的S特性）的中心频率可以通过调节第二和第三可变电感元件来调节，并且可以通过调节判别电路的频率响应特性的线性来调节 第一可变电感元件。

公开(公告)号：US4489346A

公开(公告)日：1984-12-18

申请号：US420952

申请日：1982-09-21

申请人： Yutaka Tanaka ,  Toshinobu Isobe

发明人： Yutaka Tanaka ,  Toshinobu Isobe

IPC分类号： H03H17/00 ,  H03H21/00 ,  H04N9/78 ,  H04N9/535

CPC分类号： H04N9/78

摘要： A separating filter includes a band pass filter supplied with a composite color video signal, having a resonance frequency of a chrominance sub-carrier frequency, a first circuit supplied with the output of the band pass filter for generating first and second signals having the same phase but different time relationship, and a second circuit for comparing levels of the first and second signals with a level of a reference signal and for producing the signal that has a level nearer the reference level.

摘要翻译： 分离滤波器包括提供有具有色度副载波频率的谐振频率的复合彩色视频信号的带通滤波器，提供有带通滤波器的输出的第一电路，用于产生具有相同相位的第一和第二信号 但是不同的时间关系，以及第二电路，用于将第一和第二信号的电平与参考信号的电平进行比较，并用于产生具有更接近参考电平的电平的信号。

公开(公告)号：US4184176A

公开(公告)日：1980-01-15

申请号：US874614

申请日：1978-02-02

申请人： Hiroshi Sahara ,  Yutaka Tanaka ,  Toshinobu Isobe

发明人： Hiroshi Sahara ,  Yutaka Tanaka ,  Toshinobu Isobe

IPC分类号： H03F1/34 ,  H03F1/48 ,  H03F3/19 ,  H04N9/68 ,  H04N5/14 ,  H03F3/45

CPC分类号： H03F1/34 ,  H03F1/48

摘要： A feedback amplifier, particularly suitable for use in the video output circuit of a television receiver, has an amplifying circuit, for example, in the form of a differential amplifier, a first feedback circuit for negatively feeding back to the input of the amplifying circuit a low frequency component of the output signal from the amplifying circuit, and a second feedback circuit having substantially the same feedback ratio as the first feedback circuit but being operative to negatively feedback to the input of the amplifying circuit a high frequency component of the output signal.

摘要翻译： 特别适用于电视接收机的视频输出电路的反馈放大器具有放大电路，例如以差分放大器的形式，负反馈给放大电路的输入的第一反馈电路 来自放大电路的输出信号的低频分量，以及具有与第一反馈电路基本相同的反馈比率的第二反馈电路，但是可操作以对输出信号的高频分量负反馈给放大电路的输入。

公开(公告)号：US4412251A

公开(公告)日：1983-10-25

申请号：US298106

申请日：1981-08-31

申请人： Yutaka Tanaka ,  Toshinobu Isobe

发明人： Yutaka Tanaka ,  Toshinobu Isobe

IPC分类号： H04N5/21 ,  G09G1/14 ,  H04N5/14

CPC分类号： H04N7/0132 ,  G09G1/146 ,  Y10S348/91

摘要： A flicker preventing circuit for a television receiver is disclosed which includes a first delay line for delaying an input video signal by one horizontal sweep period and producing a first delayed signal, a second delay line for delaying the input video signal by two horizontal periods and producing a second delayed signal, a switching circuit for selecting either the input video signal or the second delayed signal, the switching circuit being switched alternately according to which of the even and odd interlaced fields, respectively, is being displayed, an adder for adding the output signal from the switching circuit and the first delayed signal each other, and a level changing circuit for changing the level of either the input video signal or the second delayed signal relative to the level of the first delayed signal.

摘要翻译： 公开了一种电视接收机防闪烁电路，它包括一个用于将输入视频信号延迟一个水平扫描周期并产生第一延迟信号的第一延迟线，用于将输入视频信号延迟两个水平周期的第二延迟线，并产生 第二延迟信号，用于选择输入视频信号或第二延迟信号的切换电路，切换电路根据正在显示的偶数和奇数交错场中的哪一个被交替地切换;加法器，用于将输出 来自开关电路的信号和第一延迟信号;以及电平改变电路，用于相对于第一延迟信号的电平改变输入视频信号或第二延迟信号的电平。

公开(公告)号：US5786848A

公开(公告)日：1998-07-28

申请号：US670139

申请日：1996-06-25

申请人： Toshinobu Isobe ,  Yasuhiro Kawamura ,  Hisafumi Yamada ,  Hidehiko Okada

发明人： Toshinobu Isobe ,  Yasuhiro Kawamura ,  Hisafumi Yamada ,  Hidehiko Okada

IPC分类号： H04N7/015 ,  H04N5/04 ,  H04N13/00 ,  H04N13/04 ,  H04N7/18

CPC分类号： H04N13/0037 ,  H04N13/0029 ,  H04N13/0048 ,  H04N13/0051 ,  H04N13/0059 ,  H04N19/597 ,  H04N13/0055 ,  H04N13/0239 ,  H04N13/0257 ,  H04N13/0422 ,  H04N13/0438 ,  H04N13/0497

摘要： A three-dimensional video signal generator has a high-definition video signal source for generating left and right high-definition video signals having, as left and right video signals, video signals in respective effective scanning periods of odd-numbered and even-numbered field signals of a interlaced-scanning high-definition video signal composed of 1125 scanning lines and having an interlace factor of 2:1. The left and right video signals in the respective effective scanning periods of the left and right high-definition video signals supplied from said high-definition video signal source are vertically compressed in time with a compression ratio of 11:5. The compressed left and right video signals in the odd-numbered and even-numbered fields are combined into a three-dimensional video signal disposed in each of effective scanning periods of odd-numbered and even-numbered field signals of one high-definition video signal, with a pseudo vertical blanking period of a given time duration inserted between the compressed left and right video signals such that the time interval of the compressed left and right video signals becomes a 1/2 field period.

摘要翻译： 三维视频信号发生器具有用于产生左和右视频信号的高分辨率视频信号源，其具有作为左视频信号和右视频信号的奇数和偶数场的有效扫描周期中的视频信号 由1125条扫描线构成的交错因子为2：1的隔行扫描型高分辨率视频信号的信号。 从所述高分辨率视频信号源提供的左和右高清晰度视频信号的各个有效扫描周期中的左右视频信号在压缩比为11:5的时间内被垂直压缩。 奇数编号场和偶数场中的压缩左视频信号和右视频信号被组合成三维视频信号，其设置在一个高清视频信号的奇数和偶数场信号的有效扫描周期中 具有插入在压缩左视频信号和右视频信号之间的给定持续时间的伪垂直消隐周期，使得压缩的左视频信号和右视频信号的时间间隔变为+ E，fra 1/2 + EE场周期。

公开(公告)号：US08379153B2

公开(公告)日：2013-02-19

申请号：US12730708

申请日：2010-03-24

申请人： Toshinobu Isobe

发明人： Toshinobu Isobe

IPC分类号： H04N9/68 ,  H04N1/58

CPC分类号： H04N5/208 ,  H04N9/67

摘要： In the video signal processing device, the first color space converting section performs color space conversion on an input video signal, to generate a converted video signal configured of H, S and V signals. The first high-frequency separating section separates a high-frequency component from the luminance signal in the input video signal, to generate high-frequency luminance signals. The combining section performs a combining process based on the V signal or the S signal or both, and the high-frequency luminance signal, to generate a combined V signal or a combined S signal or both. The second color space converting section performs color space conversion on a video signal, configured of the H signal, the S signal or the combined S signal, and the V signal or the combined V signal, to generate an output video signal defined in RGB color space.

摘要翻译： 在视频信号处理装置中，第一色彩空间转换部分对输入视频信号执行色彩空间转换，以产生由H，S和V信号构成的转换视频信号。 第一高频分离部分将高频分量与输入视频信号中的亮度信号分离，以产生高频亮度信号。 组合部分执行基于V信号或S信号或两者的组合处理和高频亮度信号，以产生组合的V信号或组合的S信号或两者。 第二颜色空间转换部分对由H信号，S信号或组合S信号以及V信号或组合的V信号构成的视频信号执行色彩空间转换，以产生以RGB颜色定义的输出视频信号 空间。

公开(公告)号：US20080272998A1

公开(公告)日：2008-11-06

申请号：US10571911

申请日：2005-07-15

申请人： Tomoya Yano ,  Yoshiki Shirochi ,  Toshinobu Isobe ,  Makio Iida

发明人： Tomoya Yano ,  Yoshiki Shirochi ,  Toshinobu Isobe ,  Makio Iida

IPC分类号： G09G3/36

CPC分类号： G09G3/3611 ,  G09G3/2018 ,  G09G3/2051 ,  G09G3/2055 ,  G09G3/3607 ,  G09G3/3696 ,  G09G2320/0242 ,  G09G2320/0247 ,  G09G2320/0276 ,  G09G2320/028 ,  G09G2320/0613 ,  G09G2320/0673

摘要： An image display device and an image display method able to display a middle gray-scale by using a plurality of pixels or fields and, at the same time, improve viewing angle characteristics are provided. When displaying an image via a direct view type liquid crystal display screen, a gray-scales of an input video signal is converted to characteristic values (transmittances) of pixels two-dimensionally arranged with respect to the display image, and the gray-scale is converted so as to include, among a plurality of pixels or fields expressing a middle gray-scale, at least one pixel or field converted to a first characteristic value obtained by adding a positive correction value to the gray-scale of the input video signal, and at least one pixel or field converted to a second characteristic value obtained by adding a negative correction value to the gray-scale of the input video signal.

摘要翻译： 提供了能够通过使用多个像素或场来显示中间灰度并且同时改善视角特性的图像显示装置和图像显示方法。 当通过直视型液晶显示屏显示图像时，将输入视频信号的灰度转换为相对于显示图像二维布置的像素的特征值（透射率），灰度级 转换成在表示中间灰度的多个像素或场中包括转换成通过将正校正值与输入视频信号的灰度相加而获得的第一特征值的至少一个像素或场， 以及转换成通过将负校正值与输入视频信号的灰度相加而获得的第二特征值的至少一个像素或场。