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81. 发明授权

US4263609A Automatic deviation limit control circuit for secam encoders 失效
标题翻译：伺服编码器自动偏差限制控制电路
公开(公告)号：US4263609A
公开(公告)日：1981-04-21
申请号：US93222
申请日：1979-11-13
申请人： Felix Aschwanden
发明人： Felix Aschwanden
IPC分类号： H04N11/18 , H04N9/40
CPC分类号： H04N11/183
摘要： An automatic deviation limiting control circuit for a SECAM camera features a circuit for comparing the deviated subcarrier frequency of SECAM vertical identification pulses with a reference signal. A deviation limiter control signal in accordance with the difference between said identification and reference signals is applied to a limiter circuit for limiting the deviation.
摘要翻译：用于SECAM摄像机的自动偏移限制控制电路具有用于将SECAM垂直识别脉冲的偏离副载波频率与参考信号进行比较的电路。根据所述识别和参考信号之间的差异的偏差限制器控制信号被施加到用于限制偏差的限制器电路。

82. 发明授权

US4135201A Dynamic damping for SECAM high-frequency de-emphasis 失效
标题翻译： SECAM高频去加重的动态阻尼
公开(公告)号：US4135201A
公开(公告)日：1979-01-16
申请号：US776066
申请日：1977-03-09
申请人： Douglas P. Dickie , Larry A. Nelson
发明人： Douglas P. Dickie , Larry A. Nelson
IPC分类号： H04N9/47 , H04N11/18 , H04N9/537 , H04N5/14 , H04N9/50
CPC分类号： H04N11/186
摘要： A switching element is placed across a filter and controllably activated to dynamically change the response of the filter. Specifically, additional damping is switched into the "Bell" characteristic, interjected during blanking and removed after the beginning of white lead-in, to dynamically change the response of the band-pass "Bell" filter in a Sequential Color and Memory Television System.
摘要翻译：开关元件放置在过滤器上并且可控地激活以动态地改变过滤器的响应。具体来说，附加阻尼被切换成“贝尔”特性，在消隐期间插入并在白色导入开始之后被去除，以动态地改变连续色彩和存储电视系统中的带通“贝尔”滤波器的响应。

83. 发明授权

US4100568A Color television encoder signals 失效
标题翻译：彩色电视编码器信号
公开(公告)号：US4100568A
公开(公告)日：1978-07-11
申请号：US683347
申请日：1976-05-05
申请人： Donald D. Kline
发明人： Donald D. Kline
IPC分类号： H04N11/18 , H04N9/02
CPC分类号： H04N11/183
摘要： Color television chrominance signal encoding is improved by alternately keying parallel modulators controlled by independent oscillators. Improved luminance signal encoding minimizing crosstalk is achieved by selected filtering, delay and threshold control in response to repetitive high signal level conditions. Circuitry for improving luminance signal encoding is described which is useful in both fm and am video signal processing applications. A preferred embodiment of an encoder is described which is operative according to the French SECAM standard.
摘要翻译：通过交替键控由独立振荡器控制的并行调制器来改善彩色电视色度信号编码。通过响应于重复的高信号电平条件的选择的滤波，延迟和阈值控制来实现改善最小化串扰的亮度信号编码。描述了用于改善亮度信号编码的电路，其在fm和am视频信号处理应用中都是有用的。描述了根据法国SECAM标准操作的编码器的优选实施例。

84. 发明授权

US4052734A GRGB line sequential color television system 失效
标题翻译： GRGB线序列彩色电视系统
公开(公告)号：US4052734A
公开(公告)日：1977-10-04
申请号：US519742
申请日：1974-10-31
申请人： Walter Jaeger
发明人： Walter Jaeger
IPC分类号： H04N9/12 , H04N9/04 , H04N9/80 , H04N9/86 , H04N11/08 , H04N11/18 , H04N11/22 , H04N11/24 , H04N9/34 , H04N9/16
CPC分类号： H04N11/22 , H04N9/86
摘要： In a GRGB line sequential color television system, the sequential-to-simultaneous decoder in the receiver employs separate delay line and switch arrangements for each channel. Also, the sound signals associated with the green (G) portions of the sequence are transmitted in multiplex form with the other sound signals during the R and B portions of the sequence.

85. 发明授权

US3984863A Methods and devices for stabilizing the rest frequency of frequency modulated oscillators 失效
标题翻译：用于稳定调频振荡器的静止频率的方法和装置
公开(公告)号：US3984863A
公开(公告)日：1976-10-05
申请号：US542053
申请日：1975-01-17
申请人： Roland Fessard
发明人： Roland Fessard
IPC分类号： H04N9/45 , H03C3/09 , H04N11/18 , H04N9/40
CPC分类号： H04N11/183 , H03C3/09
摘要： The rest frequency of an oscillator supplying a sub-carrier modulated in frequency by the chrominance signal from a SECAM television transmitter, is servocoupled to a reference frequency during the frame return periods and a phase shift of the oscillator is effected during the line return periods, shorter than the frame return periods. The servocoupling device comprises a reference frequency generator, and a servocoupling loop comprising a switch member and storage means for storing a parameter which controls the rest frequency of the ocillator, and control means for actuating the switch into closed condition, so closing the loop during the frame sweep return periods. The oscillator comprises means for phase setting during line return periods, shorter than the frame return periods.
摘要翻译：通过来自SECAM电视发射机的色度信号频率调制的子载波的振荡器的休眠频率在帧返回周期期间被伺服耦合到参考频率，并且在线路返回周期期间实现振荡器的相移，比帧返回时间短。伺服耦合装置包括参考频率发生器和包括开关构件的伺服耦合回路和用于存储控制振荡器的静止频率的参数的存储装置，以及用于致动开关进入闭合状态的控制装置，因此在该期间闭合回路帧扫描返回周期。该振荡器包括在线路返回期间相位设定的装置，比帧返回周期短。

86. 发明授权

US3871019A Line sequential color television recording system 失效
标题翻译：线路顺序彩色电视录制系统
公开(公告)号：US3871019A
公开(公告)日：1975-03-11
申请号：US35089973
申请日：1973-04-13
申请人： RCA CORP
发明人： BINGHAM JOSEPH PETER
IPC分类号： H04N11/04 , H04N9/81 , H04N9/86 , H04N11/18 , H04N11/22 , H04N9/02
CPC分类号： H04N9/86 , H04N9/81
摘要： A line sequential color signal coding format for a limited bandwidth video recording system is disclosed which achieves improved vertical transient response during playback display. Spectrum interleaving is employed between the luminance signal and color difference chrominance signals during encoding, with the necessary signal separation during decoding being effected by comb filtering using delay lines. Prefiltering may be implemented during encoding to comb out crosstalk producing signals from the luminance and chrominance signal spectrums. To avoid contamination of the mixed high frequency luminance components in the decoder by the switched low frequency components, the composite signal may be fed through a high pass luminance filter in the decoder whose cutoff frequency is above that of a low pass filter in the encoder through which the switched, line sequential components are fed.
摘要翻译：公开了一种用于有限带宽视频记录系统的线序彩色信号编码格式，其在回放显示期间实现了改进的垂直瞬态响应。在编码期间，在亮度信号和色差色度信号之间采用频谱交织，在通过使用延迟线的梳状滤波实现解码期间的必要信号分离。可以在编码期间实现预滤波，以梳理从亮度和色度信号频谱产生信号的串扰。

87. 发明授权

US3663746A Decoder for decoding the chrominance signal of a color television signal 失效
标题翻译：用于解码彩色电视信号的色度信号的解码器
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
发明人： BACKERS FRANCISCUS THEODORUS , SWALUW HARRY LEMAN
IPC分类号： H04N11/16 , H04N11/18 , H04N9/40
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。

88. 发明授权

US3560635A System for transmitting a narrow-band line and for simultaneous reproduction of such signal 失效
标题翻译：用于发送窄带线和同时生成这种信号的系统
公开(公告)号：US3560635A
公开(公告)日：1971-02-02
申请号：US3560635D
申请日：1967-03-28
申请人： TELEFUNKEN PATENT
发明人： BRUCH WALTER DR
IPC分类号： H04N9/00 , E04C2/38 , H04N9/64 , H04N9/78 , H04N9/81 , H04N9/83 , H04N9/86 , H04N11/18 , H04N11/22 , H04N5/78 , H04N5/02
CPC分类号： H04N11/22 , H04N9/81 , H04N9/86 , H04N11/18
摘要： In a recording or transmitting system for color television signals where three signals R,G,B representing three different color components are recorded or transmitted one after the other line by line, the three color signals are made available simultaneously in each line by means of two delaying devices each with the delay time of the length of one line.

89. 发明授权

US3485942A Means for raising the signal-to-noise ratio of a frequency modulated subcarrier in a composite color tv signal 失效
标题翻译：在复合彩色电视信号中提高频率调制子步骤的信号噪声比的手段
公开(公告)号：US3485942A
公开(公告)日：1969-12-23
申请号：US53180066
申请日：1966-03-04
申请人： TELEVISION CIE FRANC DE
发明人： MELCHIOR GERARD
IPC分类号： E06B9/84 , E06B9/90 , H04N11/18 , H04N1/46 , H04N9/12
CPC分类号： H04N11/18 , E06B9/84 , E06B9/90

90. 发明授权

US3344230A Heceivehs fos receiving a colour tele- vision signal including a frequency- modulated subcarrier 失效
公开(公告)号：US3344230A
公开(公告)日：1967-09-26
申请号：US3344230D
IPC分类号： H04N11/18
CPC分类号： H04N11/186 , H04N11/18

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