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公开(公告)号：US20060268179A1
公开(公告)日：2006-11-30
申请号：US11135799
申请日：2005-05-24
申请人： Karl Renner , Weider Chang , Ramesh Chandrasekaran
发明人： Karl Renner , Weider Chang , Ramesh Chandrasekaran
IPC分类号： H04N9/78
CPC分类号： H04N11/146 , H04N5/145 , H04N9/66 , H04N9/77 , H04N9/78 , H04N11/165
摘要： Systems and methods are provided for detecting motion within a composite video signal. A first chroma difference element compares an in-phase chroma component of the composite video signal to a delayed representation of the in-phase chroma component to produce a first chroma difference value for a given pixel. A second chroma difference element compares a quadrature chroma component of the composite video signal to a delayed representation of the quadrature chroma component to produce a second chroma difference value for the pixel. A parameter mapping component maps the first and second difference values to respective first and second motion parameters that indicates the degree of change in the chroma properties of the pixel. A parameter selector determines a composite motion parameter for the pixel from the first and second motion parameters.
摘要翻译： 提供用于检测复合视频信号内的运动的系统和方法。 第一色差元件将复合视频信号的同相色度分量与同相色度分量的延迟表示进行比较，以产生给定像素的第一色度差值。 第二色差元件将复合视频信号的正交色度分量与正交色度分量的延迟表示进行比较，以产生像素的第二色度差值。 参数映射组件将第一和第二差分值映射到指示像素的色度特性的变化程度的相应的第一和第二运动参数。 参数选择器从第一和第二运动参数确定像素的复合运动参数。
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公开(公告)号：US4897713A
公开(公告)日：1990-01-30
申请号：US301572
申请日：1989-01-24
申请人： Antonius H. Nillesen
发明人： Antonius H. Nillesen
CPC分类号： H04N11/165
摘要： In a color television signal decoding circuit having a first phase-locked loop comprising a color synchronizing signal phase detection circuit (9) for a first digital oscillator (15) which supplies reference signals for demodulating a digital chrominance signal, and a second phase-locked loop comprising a line synchronizing signal phase detection circuit (65) for a second digital oscillator (29) which supplies a clock signal having a frequency coupled to the line frequency for an analog-to-digital converter (3) and for the first digital oscillator (15), the first phase-locked loop and a coupling (73, 45, 37) between the two loops is interrupted (41) when a stable synchronization state of the second phase-locked loop is detected (85), while a new phase-locked loop for the second digital oscillator (29) is formed which is then controlled (59, 67, 121, 71) by the color synchronizing signal phase detection circuit (9) so that further signal operations of the decoded signals can be performed with greater accuracy.
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公开(公告)号：US3770883A
公开(公告)日：1973-11-06
申请号：US3770883D
申请日：1972-02-11
申请人： GEN CORP
发明人： SUGIHARA Y
CPC分类号： H04N11/165
摘要： Colour synchronizing system for a colour television receiver is constructed according to a signal transmission system in which a pair of colour signals effect simultaneous quadrature balanced modulation of a colour subcarrier with respect to first and second mutually perpendicular modulation axes, the second of which undergoes phase alternation of 180* for successive horizontal lines and in which the resulting colour television signal includes a colour sync signal rendering it possible to discern the alternating polarities of a chrominance signal. Said colour sync signal includes first and second components carried on the initial part of each horizontal line so as to appear concurrently or in succession and has a phase displacement of 90* to each other, the first component being of a fixed phase, and the second component being of a phase which is periodically switched in a manner corresponding to the phase alternation of the second modulation axis for successive horizontal lines. For demodulation of the chrominance signal along the first modulation axis not undergoing phase alternation, an instantaneous reference subcarrier is used which is obtained by phase modulation, with a saw-tooth wave having a frequency equal to half the line frequency, of an offset subcarrier of a frequency of fsc + OR 2n - 1/2 fH, where fsc denotes the frequency of a colour subcarrier, fH, line frequency and n a positive integer.
摘要翻译： 彩色电视接收机的彩色同步系统是根据信号传输系统构成的，其中一对彩色信号相对于第一和第二相互垂直的调制轴对彩色副载波进行同步正交平衡调制，其中第二个相位交替 对于连续的水平线为180°，并且所得彩色电视信号包括彩色同步信号，使得可以辨别色度信号的交替极性。 所述颜色同步信号包括在每条水平线的初始部分上携带的第一和第二分量，以便同时或相继出现并且彼此相位偏移90度，第一分量是固定相，第二分量是固定相 分量具有相对于连续水平线的与第二调制轴的相位交替相对应的方式周期性地切换的相位。 为了解调沿着不进行相位交替的第一调制轴的色度信号，使用通过相位调制获得的瞬时参考子载波，其中具有等于线频率的一半的锯齿波，偏移副载波的偏移副载波 频率fsc +/- 2n - 1/2 fH，其中fsc表示彩色副载波的频率，fH，线频率和na正整数。
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公开(公告)号：US3699240A
公开(公告)日：1972-10-17
申请号：US3699240D
申请日：1970-11-19
申请人： SONY CORP
发明人： MORIO MINORU , KIMURA HIROYUKI
CPC分类号： H04N11/165
摘要： A color television receiver utilizing the chrominance information in only alternate lines of the video signal. The signal from these alternate lines is also delayed for one scanning period, normally one line period. A switching system is provided for interlacing the delayed signals with the undelayed signals to produce a composite signal equal in duration to the signal transmitted. Since the video information on adjacent lines or scans is virtually identical, this elimination and substitution is not noticed by the viewers'' eye.
摘要翻译： 彩色电视接收机仅在视频信号的交替行中使用色度信息。 来自这些交替线路的信号也延迟一个扫描周期，通常是一个行周期。 提供了一种交换系统，用于将延迟的信号与未延迟的信号交错，以产生与发送的信号相等的复合信号。 由于相邻行或扫描的视频信息实际上是相同的，因此观众不会注意到这种消除和替换。
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公开(公告)号：US3676711A
公开(公告)日：1972-07-11
申请号：US3676711D
申请日：1970-02-19
申请人： RCA CORP
CPC分类号： H04N11/165
摘要： ''''Bucket brigade'''' type of delay line is realized in integrated circuit form with MOS devices serving all switching, storage, amplifier and amplifier load functions. Configurations wherein devices are all of the same channel conductivity type are disclosed, as well as configurations employing complementary devices. Certain embodiments utilize a pair of complementary switching waveforms for interleaved switching operations, while in other embodiments a single switching waveform suffices. Modifications for minimizing coupling of the switching signal into the delayed signal are also shown.
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6.发明授权Method and apparatus for decoding an analog extended video signal having signalling information included therein for controlling the decoding operations 失效用于解码其中包含信令信息的模拟扩展视频信号用于控制解码操作的方法和装置
公开(公告)号：US5854660A
公开(公告)日：1998-12-29
申请号：US553811
申请日：1995-10-23
IPC分类号： H04N7/015 , H04N5/44 , H04N7/00 , H04N7/035 , H04N7/08 , H04N7/081 , H04N7/085 , H04N7/088 , H04N11/16 , H04N7/12
CPC分类号： H04N7/0122 , H04N11/165 , H04N7/007 , H04N7/035 , H04N7/0355 , H04N7/0885
摘要： In a method of decoding a data signal (WSS) having at least a start-code or sync word section (SC) and a data section (AR..R), the data signal is converted (ADC) into a sequence of multi-bit samples having at least a start-code or sync word section (SC) and a data section (AR..R). The sequence of multi-bit samples is processed (11A) to obtain a word sync signal (WS) indicating synchronization information. A disturbance measurement signal (.GAMMA.) is obtained (19) from at least the start-code or sync word section (SC) of the sequence of multi-bit samples. Finally, the data section (AR..R) of the sequence of multi-bit samples is code demodulated (13A) in response to the word sync signal (WS) in dependence upon the disturbance measurement signal (.GAMMA.) to obtain a demodulated data signal.
摘要翻译： 在对至少具有起始码或同步字部分（SC）和数据部分（AR..R）的数据信号（WSS）进行解码的方法中，数据信号被转换（ADC） 具有至少起始码或同步字部分（SC）和数据部分（AR..R）的位采样。 处理多比特样本的序列（11A）以获得指示同步信息的字同步信号（WS）。 从至少多位采样序列的起始码或同步字部分（SC）获得干扰测量信号（GAMMA）（19）。 最后，根据干扰测量信号（GAMMA）响应于字同步信号（WS）对多比特采样序列的数据部分（AR..R）进行解码（13A），以获得解调数据 信号。
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公开(公告)号：US5438371A
公开(公告)日：1995-08-01
申请号：US82071
申请日：1993-06-23
CPC分类号： H04N9/8707 , H04N11/04 , H04N11/165 , H04N11/186
摘要： At least a first and a second digital signal, both in parallel form, are converted to a single serial signal and transmitted from a digital color decoder to a signal processing unit so as to avoid picture disturbances in the signal processing unit. The first digital signal is dependent on the instantaneous value of a clock frequency used in the decoder for processing a digital color picture signal, and the second digital signal is dependent on the instantaneous value of a chrominance subcarrier frequency generated in the decoder and used for color decoding.
摘要翻译： 并行形式的至少第一和第二数字信号被转换为单个串行信号，并从数字彩色解码器传输到信号处理单元，以避免信号处理单元中的图像干扰。 第一数字信号取决于用于处理数字彩色图像信号的解码器中使用的时钟频率的瞬时值，第二数字信号取决于在解码器中产生并用于颜色的色度副载波频率的瞬时值 解码。
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公开(公告)号：US5301015A
公开(公告)日：1994-04-05
申请号：US980276
申请日：1992-11-23
申请人： Sung-Hoon Kim
发明人： Sung-Hoon Kim
CPC分类号： H04N9/455 , H04N11/143 , H04N11/146 , H04N11/162 , H04N11/165 , H04N9/642
摘要： A digital encoder for use in both NTSC and PAL systems includes a demultiplexer for separating a time-division color difference signal R-Y/B-Y into color difference signals R-Y and B-Y. The separated color difference signals R-Y and B-Y are converted by a sub-carrier frequency converter into a sub-carrier frequency, and a digital modulator determines levels and phases of the converted color difference signals. A burst generating circuit generates a burst signal after determining a level and phase of the burst signal, and a chroma encoder produces a chroma signal by mixing an output of the digital modulator with the burst signal.
摘要翻译： 用于NTSC和PAL系统的数字编码器包括用于将时分色差信号R-Y / B-Y分离成色差信号R-Y和B-Y的解复用器。 分离的色差信号R-Y和B-Y由副载波频率转换器转换成副载波频率，并且数字调制器确定转换的色差信号的电平和相位。 突发发生电路在确定突发信号的电平和相位之后产生突发信号，并且色度编码器通过将数字调制器的输出与突发信号混合来产生色度信号。
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公开(公告)号：US4300155A
公开(公告)日：1981-11-10
申请号：US139223
申请日：1980-04-11
申请人： Takayuki Sagishima , Teruo Kitani
发明人： Takayuki Sagishima , Teruo Kitani
CPC分类号： H04N9/455 , H04N11/165 , H04N9/465
摘要： In the PAL system, the demodulating axis for one of the two color difference signals, i.e. the R-Y signal, is transmitted switched in phase 180.degree. at each horizontal scanning period. In order to reproduce this signal, a demodulator circuit for color television signals is provided for producing a R-Y signal of the correct polarity, using a line switching signal not controlled by the phase of the transmission signal, and having a frequency half that of the horizontal frequency.
摘要翻译： 在PAL系统中，两个色差信号中的一个，即R-Y信号的解调轴在每个水平扫描周期180°相位切换。 为了再现该信号，提供了一种用于彩色电视信号的解调器电路，用于产生具有正确极性的RY信号，使用不受传输信号的相位控制的线路切换信号，并且具有水平的频率的一半 频率。
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10.发明授权
公开(公告)号：US3663746A
公开(公告)日：1972-05-16
申请号：US3663746D
申请日：1969-03-24
申请人： PHILIPS CORP
CPC分类号： H04N11/186 , H04N11/165
摘要： A decoder circuit for PAL and SECAM television signals which has two reflection type delay lines. A horizontal frequency switch alternately applies the chrominance signal to the delay lines. The switch may be a pair of diodes or transistors. Since each delay line is of the relecting type, it need only contain half of the delay line material normally required.
摘要翻译： 一种用于PAL和SECAM电视信号的解码器电路，其具有两个反射型延迟线。 水平频率开关交替地将色度信号施加到延迟线。 开关可以是一对二极管或晶体管。 由于每个延迟线都是反射型，所以只需要通常需要的延迟线材料的一半。
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