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11. 发明授权

US5159488A Optical video disc player 失效
标题翻译：光学视频播放器
公开(公告)号：US5159488A
公开(公告)日：1992-10-27
申请号：US507304
申请日：1990-04-10
申请人： Noriyuki Yamashita
发明人： Noriyuki Yamashita
IPC分类号： H04N5/85 , G11B7/0037 , G11B7/085 , G11B7/095 , G11B20/02 , G11B20/18 , H04N5/95 , H04N5/953 , H04N5/956 , H04N9/85
CPC分类号： G11B7/0037 , G11B20/18 , G11B7/08517 , H04N5/95 , H04N5/953 , H04N9/85
摘要： A video disc recorded according to a constant linear velocity (CLV) format at high speed is scan reproduced using three kinds of track jumps, of varying numbers of tracks, by the photo pickup head so that the synchronization defects inherent in the prior art can be eliminated. A video player is also provided.

12. 发明授权

US4291344A Time base correcting system 失效
标题翻译：时基校正系统
公开(公告)号：US4291344A
公开(公告)日：1981-09-22
申请号：US94457
申请日：1979-11-15
申请人： Kenji Kimura
发明人： Kenji Kimura
IPC分类号： G11B5/027 , G11B20/02 , H04N5/953 , H04N5/785 , G11B5/02 , G11B27/10
CPC分类号： H04N5/953
摘要： A system for correcting the time base in a fixed type magnetic recording and reproducing apparatus is disclosed. The system involves picking up video signals with a fixed head, reproducing the video signals with a demodulator, correcting time base variations of the reproduced video signals with a variable delay member, comparing the output signals of the variable delay member with reference signals in order to detect the time base variations caused in the reproduced video signals by the tape running irregularly and the time base variations caused by a change with time or the like in output signals of the variable delay member, feeding back the obtained time base variation signals to the variable delay member through a low-phase filter and a mixer thereby to control the delay member, comparing the phase of input signals to the variable delay member with the phase of the reference signals in order to correct high frequency components of the time base variations which are removed by the low-pass filter, and supplying the obtained time base variation signals to the variable delay member through a high-pass filter thereby to control the delay member.
摘要翻译：公开了一种用于在固定式磁记录和再现装置中校正时基的系统。该系统包括用固定头拾取视频信号，用解调器再现视频信号，用可变延迟部件校正再现的视频信号的时基变化，将可变延迟部件的输出信号与参考信号进行比较，以便通过不规则运行的磁带检测在再现的视频信号中引起的时基偏差以及由可变延迟部件的输出信号随时间变化引起的时基变化，将获得的时基变化信号反馈到变量延迟构件通过低相位滤波器和混频器，从而控制延迟构件，将参考信号的相位与输入信号的相位与可变延迟构件进行比较，以校正时基偏差的高频分量通过低通滤波器去除，并且通过hig将所获得的时基变化信号提供给可变延迟部件 h通滤波器，从而控制延迟部件。

13. 发明授权

US4228460A Method and apparatus for compensation of time base errors 失效
标题翻译：补偿时基误差的方法和装置
公开(公告)号：US4228460A
公开(公告)日：1980-10-14
申请号：US868898
申请日：1978-01-12
申请人： Gerhard Rotter
发明人： Gerhard Rotter
IPC分类号： H04N5/953 , H04N9/893 , H04N5/76
CPC分类号： H04N9/893 , H04N5/953
摘要： Method and apparatus for compensating for variations in the time base of a video signal reproduced in a longitudinal video tape recording system. The signal is passed through a charge-coupled device clocked by a variable rate clock signal to correct for the timing variations. Thereafter, a clamping circuit removes variable voltage offsets introduced by the charge-coupled device, to prevent objectionable horizontal streaking from occurring in the resulting video picture. A clipping circuit removes random noise from the time base pulses of the video signal prior to its passing through the charge-coupled device, whereby the clamping circuit is prevented from creating an objectionable flicker in the resulting video picture.
摘要翻译：用于补偿在纵向磁带录像系统中再现的视频信号的时基的变化的方法和装置。信号通过由可变速率时钟信号计时的电荷耦合器件，以校正时序变化。此后，钳位电路去除由电荷耦合器件引入的可变电压偏移，以防止在所得视频图像中发生不利的水平条纹。削波电路在通过电荷耦合器件之前从视频信号的时基脉冲中去除随机噪声，从而防止钳位电路在所得视频图像中产生令人不快的闪烁。

14. 发明授权

US4005476A Circuit for compensating time errors in a television signal, particularly from a recording instrument 失效
标题翻译：电路，用于补偿电视信号中的时间误差，特别是记录仪器
公开(公告)号：US4005476A
公开(公告)日：1977-01-25
申请号：US530145
申请日：1974-12-05
申请人： Gerhard Dickopp , Lothar Oertel , Wolfgang Frey
发明人： Gerhard Dickopp , Lothar Oertel , Wolfgang Frey
IPC分类号： H04N5/95 , G11B20/02 , H04N5/78 , H04N5/91 , H04N5/953 , H04N5/795 , H04N5/04
CPC分类号： H04N5/953
摘要： In a circuit for compensating time errors in a television signal and including an electronically controllable delay line in the path of the signal and control signal producing elements in a control signal path connected to the line to vary the delay from a basic value of .upsilon..sub.O by .+-..DELTA..UPSILON., the delay time of the control signal path is given a value which has a selected relation to .upsilon..sub.O.
摘要翻译：在用于补偿电视信号中的时间误差并且包括在信号路径中的电子可控延迟线和控制信号的电路中产生连接到该线路的控制信号路径中的元件的电路中，用于通过 +/- DELTA UPSILON，控制信号路径的延迟时间被赋予一个与上层氧选择关系的值。

15. 发明授权

US5109285A Time base correction circuit for a reproduced video signal from a video tape recorder 失效
标题翻译：用于来自录像机的再现视频信号的时基校正电路
公开(公告)号：US5109285A
公开(公告)日：1992-04-28
申请号：US372006
申请日：1989-06-27
申请人： Takashi Koga
发明人： Takashi Koga
IPC分类号： G11B20/02 , G11B20/06 , H04N5/953
CPC分类号： H04N5/953
摘要： In a video tape recorder and reproduction apparatus, a reproduction circuit includes a switcher for generating a composite video signal composed of a multiplicity of synchronization signals from two or more video heads, a synchronization signal separator for receiving the composite video signal and separating from the composite video signal the synchronization signal, an error detection circuit for receiving the synchronization signal, detecting an error in the synchronization signal from an average period of the synchronization signals, and outputting an error signal representative of the error, a hold circuit for receiving the error signal and generating a correction signal having a constant value for each average period of the synchronization signals, with a value of the correction signal being adjusted by being added with the error signal and holding the adjusted value for each successive period of the synchronization signals and a delay circuit for receiving the composite video signal and correcting the time base of the composite video signal in response to the correction signal.
摘要翻译：在磁带录像机和重放装置中，再现电路包括：切换器，用于产生由来自两个或多个视频头的多个同步信号组成的复合视频信号;同步信号分离器，用于接收复合视频信号并与复合视频信号分离视频信号同步信号，用于接收同步信号的误差检测电路，从同步信号的平均周期检测同步信号中的误差，并输出表示误差的误差信号，用于接收误差信号的保持电路并产生对于同步信号的每个平均周期具有恒定值的校正信号，校正信号的值通过加上误差信号进行调整并保持每个连续周期的同步信号的调整值和延迟用于接收复合视频的电路并且根据校正信号校正复合视频信号的时基。

16. 发明授权

US4866394A Phase synchronizing circuit for a time axis shift correcting circuit 失效
标题翻译：时间轴移位校正电路的相位同步电路
公开(公告)号：US4866394A
公开(公告)日：1989-09-12
申请号：US165211
申请日：1988-03-08
申请人： Takashi Okano , Toru Akiyama
发明人： Takashi Okano , Toru Akiyama
IPC分类号： G11B20/02 , G11B20/00 , H03L7/14 , H04N5/953 , H04N5/956
CPC分类号： H04N5/956 , H04N5/953
摘要： A phase synchronizing circuit for a time axis shift correcting circuit includes a closed-loop phase lock circuit of a phase comparator, a VCO, and a frequency division counter, for providing an output signal phase locked to a reference signal included in an input data signal. Hold circuitry, responsive to a hold instruction signal, is provided to hold the phase relationship of the output signal held just prior to the hold instruction signal for the duration of the hold instruction signal. The hold instruction signal is produced in response to a predetermined condition of the input data signal.

17. 发明授权

US4825137A Time base control system for a spindle servo 失效
标题翻译：主轴伺服时基控制系统
公开(公告)号：US4825137A
公开(公告)日：1989-04-25
申请号：US121248
申请日：1987-11-16
申请人： Masahiro Nakajima , Tutomu Banno
发明人： Masahiro Nakajima , Tutomu Banno
IPC分类号： G11B19/20 , G11B19/28 , H04N5/953 , G05B11/18
CPC分类号： G11B19/20 , G11B19/28 , H04N5/953
摘要： A time base control system for a spindle servo motor in which the time base is both coarsely controlled and finely controlled. According to the invention, when the recording head is alternately tracking and jumping tracks, the controllable range of the fine tuning is widened and the course tuning is gradually increased.
摘要翻译：用于主轴伺服电机的时基控制系统，其中时基既被粗略控制又被精细控制。根据本发明，当记录头是交替跟踪和跳转轨道时，微调的可控范围变宽，并且航向调整逐渐增加。

18. 发明授权

US4631600A Time-axis correcting circuit for recorded data reproducing device 失效
标题翻译：用于记录数据再现装置的时间轴校正电路
公开(公告)号：US4631600A
公开(公告)日：1986-12-23
申请号：US603379
申请日：1984-04-24
申请人： Tsutomu Fukui
发明人： Tsutomu Fukui
IPC分类号： G11B20/02 , G11B7/08 , G11B19/20 , G11B20/10 , G11B20/18 , H04N5/953 , H04N9/493 , H04N5/781
CPC分类号： G11B19/20 , G11B20/10 , G11B20/18 , G11B7/081 , H04N5/953
摘要： A time-axis correcting circuit for a recorded data reproducing device such as a video disc player in which, even when a dominant time-axis error component is not a single-frequency component, suppression thereof is sufficiently achieved with a relatively simple circuit configuration. The time-axis correcting circuit includes first and second time-axis correcting circuits, each of which has a flywheel oscillator servo loop. The oscillation frequency of the first flywheel oscillator servo loop is set close to the lowest frequency of the dominant time-axis error component to be suppressed while that of the second time-axis correcting circuit is set close to the highest frequency of the dominant time-axis error component to be suppressed.
摘要翻译：即使在主要的时间轴误差成分不是单频分量的情况下，也可以利用比较简单的电路结构来充分实现对其进行抑制的记录数据再现装置例如视盘播放机的时间轴校正电路。时间轴校正电路包括第一和第二时间轴校正电路，每个时间轴校正电路具有飞轮振荡器伺服回路。第一飞轮振荡器伺服环路的振荡频率设定为接近要抑制的主要时间轴误差分量的最低频率，而第二飞轮振荡器伺服环路的振荡频率设定为接近主要时间轴校正电路的最高频率，轴误差分量被抑制。

19. 发明授权

US4345279A Time base correction apparatus 失效
标题翻译：时基校正装置
公开(公告)号：US4345279A
公开(公告)日：1982-08-17
申请号：US193255
申请日：1980-10-01
申请人： Kenji Kimura
发明人： Kenji Kimura
IPC分类号： G11B20/10 , G11B20/18 , H04N5/953 , H04N5/785
CPC分类号： G11B20/18 , G11B20/10 , H04N5/953
摘要： A time base correction apparatus comprising: a delay means (10) for providing a first signal (E3) as an input signal (E1) delay by a given time in accordance with a frequency of a clock signal (E2); a comparator (16) which compares a signal component (E4) contained in the first signal (E3) with a given comparison signal (E5) thereby to produce a second signal (E7) with a level corresponding to a phase difference between the signal component (E4) and the given comparison signal (E5); a VCO (12) for producing the clock signal (E2) depending on the level of the second signal (E7); and a compensator (20) which provides an output signal (E8) obtained by compensating variation components of the first signal (E3) so that the output signal (E8) exactly corresponds to the input signal (E1), depending on the first signal (E3) and the second signal (E7).
摘要翻译：一种时基校正装置，包括：延迟装置（10），用于根据时钟信号（E2）的频率，将给定时间的第一信号（E3）作为输入信号（E1）延迟; 比较器（16），其将包含在第一信号（E3）中的信号分量（E4）与给定的比较信号（E5）进行比较，从而产生第二信号（E7），其具有对应于信号分量（E4）和给定的比较信号（E5）; 用于根据第二信号（E7）的电平产生时钟信号（E2）的VCO（12）; 以及补偿器（20），其提供通过补偿第一信号（E3）的变化分量而获得的输出信号（E8），使得输出信号（E8）根据第一信号（E8）精确地对应于输入信号（E1） E3）和第二信号（E7）。

20. 发明授权

US4297728A Charged coupled device time base corrector system 失效
标题翻译：带电耦合器件时基校正器系统
公开(公告)号：US4297728A
公开(公告)日：1981-10-27
申请号：US27926
申请日：1979-04-06
申请人： Virgil L. Lowe
发明人： Virgil L. Lowe
IPC分类号： H04N5/953 , H04N5/04 , H04N5/785
CPC分类号： H04N5/953
摘要： An improved charged coupled device time base corrector system to compensate for a change in the phase or frequency of input video signals, as occurs in the playback of a video tape recorder, by changing the nominal delay through the corrector, comprising, in combination, an input feedback circuit and an output feedback circuit. The input feedback circuit includes two cascaded infinite gain circuits, an infinite gain phase detector followed by an infinite gain voltage amplifier which gives an error voltage that controls the frequency of the voltage controlled oscillator (VCO) utilized to control the system delay. The output servo loop always adapts itself to the input error voltage. The VCO is thereby driven at a rate of change of its frequency proportional to the incoming error signal. .
摘要翻译：一种改进的电荷耦合器件时基校正器系统，通过改变通过校正器的标称延迟来补偿输入视频信号的相位或频率的变化，如在磁带录像机的重放中发生的，包括组合输入反馈电路和输出反馈电路。输入反馈电路包括两个级联的无限增益电路，一个无限增益相位检测器，后面是一个无限增益电压放大器，它提供一个误差电压，控制用于控制系统延迟的压控振荡器（VCO）的频率。输出伺服环路总是适应输入误差电压。因此，VCO以与频率成比例的频率变化的速率驱动。。

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