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31. 发明授权

US4758879A Circuit arrangement for controlling an oscillator in a colour television receiver or a video recording and/or reproducing apparatus having a phase alternating subcarrier. 失效
标题翻译：用于控制彩色电视接收机中的振荡器的电路装置或具有相位交替副载波的视频记录和/或再现装置。
公开(公告)号：US4758879A
公开(公告)日：1988-07-19
申请号：US13
申请日：1987-01-02
申请人： Karl-Heinz Matthies
发明人： Karl-Heinz Matthies
IPC分类号： H04N9/45 , H03L7/087 , H03L7/093 , H04N9/44 , H04N9/465 , H04N9/87
CPC分类号： H04N9/87 , H03L7/087 , H04N9/44
摘要： The invention relates to a circuit arrangement for controlling an oscillator. In a first phase-comparator circuit a burst signal whose phase alternates in a predetermined sequence is compared with a first oscillator signal. The output signal generated by the first phase comparator circuit is superimposed on a correction signal generated in a correction circuit, so as to eliminate fluctuations as a result of the phase alternation of the burst signal. The correction circuit is disabled when the magnitude of the phase difference exceeds a specific limit value.
摘要翻译：本发明涉及一种用于控制振荡器的电路装置。在第一相位比较器电路中，将相位以预定顺序交替的脉冲串信号与第一振荡器信号进行比较。由第一相位比较器电路产生的输出信号叠加在校正电路中产生的校正信号上，从而消除由于脉冲串信号的相位变化引起的波动。当相位差的大小超过特定极限值时，校正电路被禁止。

32. 发明授权

US4733294A Time base corrector memory arrangement and memory control 失效
标题翻译：时基校正器内存布置和内存控制
公开(公告)号：US4733294A
公开(公告)日：1988-03-22
申请号：US788606
申请日：1985-10-17
申请人： Jan S. Wesolowski
发明人： Jan S. Wesolowski
IPC分类号： H04N5/956 , H04N9/896 , H04N17/06 , H04N9/44 , H04N9/89
CPC分类号： H04N9/896 , H04N17/06
摘要： A time base corrector including a frame memory and a memory control. The memory control is microprocessor based and calculates the starting addresses of memory areas at which video data will be written to or read from the frame memory and the starting times of those sequences. The memory control receives information concerning the configuration of the time base corrector, the input video field sequence,the desired output video field sequence, timing components of the input and reference clock signals, TV standard, and operator commands to make these calculations. The results of the control are time base corrections for horizontal and vertical phase errors, horizontal and vertical positioning control, color frame sequencing, color correction of chroma phase, configuration delay adjustment, and other advantageous operations.
摘要翻译：一种时基校正器，包括帧存储器和存储器控制。存储器控制是基于微处理器的，并且计算将从帧存储器写入或读出视频数据的存储器区域的起始地址以及这些序列的开始时间。存储器控制接收关于时基校正器，输入视频场序列，期望输出视频场序列，输入和参考时钟信号的定时分量，TV标准和操作员命令的配置的信息，以进行这些计算。控制结果是水平和垂直相位误差，水平和垂直定位控制，色彩帧排序，色度相位颜色校正，配置延迟调整和其他有利操作的时基校正。

33. 发明授权

US4724486A Apparatus for deriving information signals for component television video signal reception 失效
标题翻译：用于导出用于分量电视视频信号接收的信息信号的装置
公开(公告)号：US4724486A
公开(公告)日：1988-02-09
申请号：US641957
申请日：1984-08-10
申请人： Gary J. Tonge , Wilfrid B. Harding
发明人： Gary J. Tonge , Wilfrid B. Harding
IPC分类号： H04N7/04 , H04N7/08 , H04N7/083 , H04N9/44 , H04N11/00 , H04N11/08
CPC分类号： H04N7/083 , H04N11/08 , H04N7/08 , H04N9/44
摘要： Receiving apparatus for receiving multiplexed analogue component signals each of which represents a line of a television picture and includes a burst of digital signals, at least one of the multiplexed analogue component signals including at a predetermined location within its digital burst an indication of further information, the apparatus comprising a demodulating device for demodulating received multiplexed analogue component signals, means responsive to the output of the demodulating device for synchronizing the receiving apparatus to the received multiplexed analogue component signals, and a data extraction circuit responsive to the synchronizing means for extracting from the demodulated signals the indication of further information and for controlling the operation of the demodulating device in accordance with the further information.
摘要翻译： PCT No.PCT / GB83 / 00333 Sec。 371日期1984年8月10日 102（e）日期1984年8月10日PCT提交1983年12月14日PCT公布。出版物WO84 / 02442 日期：1984年6月21日。接收装置，用于接收复用的模拟分量信号，每个信号代表电视图像的一行，并且包括数字信号的突发，至少一个复用的模拟分量信号包括在其数字突发出进一步信息的指示，该装置包括用于解调接收的多路复用模拟分量信号的解调装置，响应于解调装置的输出以使接收装置同步接收的多路复用模拟分量信号的装置，以及响应于所述同步装置用于从解调信号中提取进一步的信息的指示，并用于根据更多的信息来控制解调装置的操作。

34. 发明授权

US4710802A Television receiver including a circuit arrangement for demodulating an NTSC-coded color signal 失效
标题翻译：电视接收机，包括用于解调NTSC编码的彩色信号的电路装置
公开(公告)号：US4710802A
公开(公告)日：1987-12-01
申请号：US836034
申请日：1986-03-04
申请人： Otto L. Warmuth , Martin H. Johanndeiter , Johannes G. Raven
发明人： Otto L. Warmuth , Martin H. Johanndeiter , Johannes G. Raven
IPC分类号： H04N9/45 , H04N9/44 , H04N9/64 , H04N9/66 , H04N11/14
CPC分类号： H04N11/146
摘要： A color television signal receiver includes a circuit arrangement for demodulating an NTSC-encoded chrominance signal available as a sequence of digital values. An oscillator circuit (33), which has an accumulator (16) and a waveform converter (31) produces two sine-shaped reference signals which are applied to a demodulator circuit (2). The accumulator (16) includes a register (18) and a (first) modulo-adder (17). A phase comparator circuit (12) controlling the phase of the reference signal receives at least one demodulated signal during the occurrence of the color synchronizing signal. The sawtooth-shaped accumulator output signal is added in a second adder (26, 38) during a first switching position of a change-over switch (23, 34) to an adjustable value and is thereafter applied to the waveform converter (31). In the second switching position of the change-over switch (23, 34), which only occurs during the occurrence of the color synchronizing signal, the accumulator output signal is applied unchanged to the waveform converter (31).
摘要翻译：彩色电视信号接收机包括用于解调可用作数字值序列的NTSC编码色度信号的电路装置。具有累加器（16）和波形转换器（31）的振荡器电路（33）产生施加到解调器电路（2）的两个正弦参考信号。累加器（16）包括寄存器（18）和（第一）模加法器（17）。控制参考信号的相位的相位比较器电路（12）在彩色同步信号发生期间接收至少一个解调信号。在转换开关（23,34）的第一开关位置期间，锯齿形累加器输出信号在第二加法器（26,38）中相加到可调整值，然后施加到波形转换器（31）。在转换开关（23,34）的仅在彩色同步信号发生时发生的第二切换位置中，累加器输出信号不变地施加到波形转换器（31）。

35. 发明授权

US4709258A Circuit and method for adding green synchronization pulse to red and blue video signals 失效
标题翻译：将绿色同步脉冲添加到红色和蓝色视频信号的电路和方法
公开(公告)号：US4709258A
公开(公告)日：1987-11-24
申请号：US911857
申请日：1986-09-26
申请人： William E. Salzer
发明人： William E. Salzer
IPC分类号： H04N9/64 , G09G5/04 , H04N9/44 , H04N9/00 , H04N9/68
CPC分类号： H04N9/44
摘要： A synchronization separation circuit is used to separate the synchronization signal portion of a green video signal. This synchronization signal is used to enable first and second comparators which compare the synchronization portion of the green video signal with the synchronization portions of the red and blue video signals respectively. A differential amplifier for each of the red and blue video signals, enabled by the green synchronization pulse and driven by the appropriate comparator, produces a synchronization pulse identical to that of the green video signal which is then added to the red or blue video signal.
摘要翻译：同步分离电路用于分离绿色视频信号的同步信号部分。该同步信号用于使第一和第二比较器分别将绿色视频信号的同步部分与红色和蓝色视频信号的同步部分进行比较。由绿色同步脉冲启动并由适当的比较器驱动的红色和蓝色视频信号中的每一个的差分放大器产生与绿色视频信号相同的同步脉冲，该脉冲随后被加到红色或蓝色视频信号。

36. 发明授权

US4701871A Signal generator using digital memory 失效
标题翻译：信号发生器使用数字存储器
公开(公告)号：US4701871A
公开(公告)日：1987-10-20
申请号：US656226
申请日：1984-10-01
申请人： Takayuki Sasaki , Masaaki Arai
发明人： Takayuki Sasaki , Masaaki Arai
IPC分类号： H04N9/64 , G06F1/035 , H04N9/44 , H04N9/81 , H04N9/86 , G06F1/02
CPC分类号： G06F1/0353
摘要： The present invention comprises a signal generator which uses digital memory for generating a digital signal which has a value which periodically varies with a memory having 2.sup.n addresses in each of which data for one period of the digital signal is stored and includes a circuit for multiplying a digital control input having a variable value by a predetermined coefficient and includes an integrator for integrating the control input multiplied by said coefficient at every predetermined clock signal so as to produce an address signal for said memory and said address signal varying step by step at a predetermined number of intervals corresponding to said digital control input.
摘要翻译：本发明包括一个信号发生器，它使用数字存储器来产生数字信号，该数字信号具有一个数值信号，该数字信号周期性地随存储有数字信号的一个周期的数据的2n个地址的存储器而变化，并且包括一个用于将数字控制输入具有预定系数的可变值，并且包括积分器，用于在每个预定时钟信号处对乘以所述系数的控制输入进行积分，以便产生用于所述存储器的地址信号，并且所述地址信号以预定的顺序逐步变化与所述数字控制输入相对应的间隔数。

37. 发明授权

US4635099A Apparatus for detecting nonstandard video signals 失效
标题翻译：用于检测非标准视频信号的装置
公开(公告)号：US4635099A
公开(公告)日：1987-01-06
申请号：US697907
申请日：1985-02-04
申请人： Warren H. Nicholson , Walter E. Sepp
发明人： Warren H. Nicholson , Walter E. Sepp
IPC分类号： H04N11/22 , H04N7/01 , H04N9/44 , H04N9/77 , H04N9/78 , H04N11/04 , H04N5/04
CPC分类号： H04N9/44
摘要： Circuitry for detecting nonstandard video signals is disclosed. This circuitry is used in a sampled data video signal processing system to control signal processing steps which utilize a frame store memory. The detecting circuitry includes a programmable counter which generates a standard horizontal pulse signal having a 70 ns pulse width by counting down a sampling clock signal that has a frequency proportional to the color subcarrier frequency of the video signals. The circuitry generates another horizontal pulse signal having a pulse width of less than 140 ns from the horizontal sync pulses of the input video signals. These pulse signals are compared in a coincidence detector which produces a signal that is in a first state when the pulses of the two signals overlap at least once in every twenty-five horizontal line times and in a second state otherwise. This coincidence signal and the field rate vertical synchronizing signal from the input video signal are used to generate the control signal for the frame store memory. This control signal is in a first state when the coincidence signal has been in its first state for at least one frame time and that changes to a second state when the coincidence signal changes to its second state.
摘要翻译：公开了用于检测非标准视频信号的电路。该电路用于采样数据视频信号处理系统以控制利用帧存储器的信号处理步骤。检测电路包括可编程计数器，其通过对具有与视频信号的彩色副载波频率成比例的频率的采样时钟信号进行下降来产生具有70ns脉冲宽度的标准水平脉冲信号。电路产生另一个水平脉冲信号，其脉冲宽度小于输入视频信号的水平同步脉冲的140ns。这些脉冲信号在符合检测器中进行比较，当两个信号的脉冲在每二十五个水平行时间中至少重叠一次时，产生处于第一状态的信号，否则在第二状态。来自输入视频信号的该符合信号和场速垂直同步信号用于产生帧存储器的控制信号。当一致信号已经处于其第一状态至少一帧时间时，该控制信号处于第一状态，并且当一致信号变为其第二状态时，该控制信号变为第二状态。

38. 发明授权

US4532555A Video reproducing apparatus 失效
标题翻译：视频再现装置
公开(公告)号：US4532555A
公开(公告)日：1985-07-30
申请号：US438509
申请日：1982-11-02
申请人： Kikuo Sagara , Masanori Kojima
发明人： Kikuo Sagara , Masanori Kojima
IPC分类号： H04N9/80 , H04N9/79 , H04N5/76 , H04N9/44 , H04N9/493
CPC分类号： H04N9/7925
摘要： A video reproducing apparatus adapted for reproducing a television signal of two or more television standard systems, comprising signal extracting means (3a, 3b) for extracting a video signal from a recording medium (1) for providing a reproduced signal (S1), a color signal processing means (11) for processing a color signal in the reproduced signal (S1) for adapting the same to the respective television standard systems, a color reference signal generating means (10) for generating a color reference signal (S6) of the frequency associated with each of the respective television standard systems, a frequency dividing means (8, 15) for frequency dividing the color reference signal (S6) for generating a vertical reference signal (S5) of the frequency associated with each of the television standard systems, and switches (SW1 to SW3) for selecting each of the respective television standard systems. The vertical reference signal (S5) is generated without providing a discrete oscillating circuit but rather by frequency dividing the color reference signal (S6). Accordingly, the number of components can be decreased and the frequency relation of both signals is maintained constant, whereby any undesired phenomenon is prevented from occurring.
摘要翻译：一种用于再现两个或多个电视标准系统的电视信号的视频再现装置，包括用于从用于提供再现信号（S1）的记录介质（1）提取视频信号的信号提取装置（3a，3b），颜色信号处理装置（11），用于处理再现信号（S1）中的颜色信号，以将其适应于相应的电视标准系统;颜色参考信号产生装置（10），用于产生频率的颜色参考信号（S6）与用于产生与每个电视标准系统相关联的频率的垂直参考信号（S5）的频率分频用的颜色参考信号（S6）的分频装置（8,15）以及用于选择各个电视标准系统中的每一个的开关（SW1至SW3）。产生垂直参考信号（S5）而不提供离散振荡电路，而是通过对颜色参考信号进行分频（S6）。因此，可以减少部件的数量，并且两个信号的频率关系保持恒定，从而防止发生任何不期望的现象。

39. 发明授权

US4527145A Method and apparatus for the digital control of the phase of the system clock of a digital signal processing system 失效
标题翻译：用于数字信号处理系统的系统时钟的相位的数字控制的方法和装置
公开(公告)号：US4527145A
公开(公告)日：1985-07-02
申请号：US416031
申请日：1982-09-08
申请人： Wolfgang Haussmann , Rainer Luder
发明人： Wolfgang Haussmann , Rainer Luder
IPC分类号： H04N9/44 , H04N9/455 , H04N9/66 , H04N9/46
CPC分类号： H04N9/455
摘要： Method for digitally controlling the phase of the system clock frequency of a digital signal processing system which processes an analog signal containing a reference signal, wherein a fixed phase relation exists between the digitalized reference signal and the system clock frequency, which includes digitalizing the reference signal by sampling the analog reference signal, weighting the scanning values of the digitalized reference signal for obtaining a digital phase comparison variable, feeding the phase comparison variable through a digital PLL filter to a digitally controlled oscillator, and deriving the system clock frequency from the output signal of the digitally controlled oscillator, and an apparatus for carrying out the method.
摘要翻译：一种用于对数字信号处理系统的系统时钟频率的相位进行数字控制的方法，该数字信号处理系统处理包含参考信号的模拟信号，其中在数字化参考信号和系统时钟频率之间存在固定相位关系，其中数字化参考信号通过对模拟参考信号进行采样，加权数字化参考信号的扫描值以获得数字相位比较变量，将相位比较变量通过数字PLL滤波器馈送到数字控制振荡器，并从输出信号中导出系统时钟频率的数字控制振荡器，以及用于执行该方法的装置。

40. 发明授权

US4517587A Synchronizing signal generating circuit for solid-state color video camera 失效
标题翻译：固态彩色摄像机同步信号发生电路
公开(公告)号：US4517587A
公开(公告)日：1985-05-14
申请号：US436360
申请日：1982-10-25
申请人： Iwao Aizawa , Michio Masuda
发明人： Iwao Aizawa , Michio Masuda
IPC分类号： H04N5/067 , H04N9/44 , H04N9/45 , H04N5/06
CPC分类号： H04N3/15 , H04N9/45
摘要： A synchronizing signal generating circuit generating a horizontal synchronizing signal applied to a solid-state color video camera comprises an oscillator generating an oscillation output signal having a frequency which is n (n: an integer) times as high as the horizontal frequency, a frequency divider dividing the frequency of the oscillation output signal from the oscillator to generate a pulse signal having a recurrence frequency equal to the horizontal frequency, and another oscillator generating, in response to the application of the pulse signal to its control terminal, a horizontal clock pulse signal whose oscillation phase is controlled to be maintained at the same fixed phase in each horizontal period.
摘要翻译：产生施加到固态彩色摄像机的水平同步信号的同步信号发生电路包括产生频率为水平频率n（n：整数）倍的振荡输出信号的振荡器，分频器将来自振荡器的振荡输出信号的频率除以产生具有等于水平频率的重现频率的脉冲信号，另一个振荡器响应于向其控制端施加脉冲信号而产生水平时钟脉冲信号其振荡相位被控制在每个水平周期内保持在相同的固定相位。

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