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公开(公告)号：US5095475A
公开(公告)日：1992-03-10
申请号：US597709
申请日：1990-10-17
申请人： Tokiya Ishikawa
发明人： Tokiya Ishikawa
摘要： An information recorded disk player designed in such a way that spindle servo control is executed on the basis of a sync signal in a video signal while a reading clock for reading memory in a digital demodulation system is synchronized with a reproduced clock, and the low frequency component of a time base error signal is removed from a signal representing the phase difference between these clocks, thereby eliminating the eccentric component and improving the tone quality.
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2.发明授权
公开(公告)号：US4835755A
公开(公告)日：1989-05-30
申请号：US61362
申请日：1987-06-15
申请人： Satoshi Kusano
发明人： Satoshi Kusano
IPC分类号： G11B7/0037 , G11B7/09 , G11B19/28 , G11B20/22 , H04N5/953
CPC分类号： G11B7/0941 , G11B19/28 , G11B20/225 , G11B7/0037 , G11B7/0908 , H04N5/953
摘要： A recording disk reproducing apparatus employing simplified digital servo control for lower-cost, more stable operational control of the apparatus. At least one of a focusing servo loop, a tracking servo loop, a spindle servo loop, and a time base servo loop employs digital conversion of an analog error signal for processing in a microprocessor. The analog-to-digital conversion circuitry has an input-output characteristic which varies in accordance with error signal level, enabling a reduction in the number of bits of A/D output necessary, and reducing cost.
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公开(公告)号：US4220971A
公开(公告)日：1980-09-02
申请号：US824137
申请日：1977-08-12
申请人： David N. Lambeth
发明人： David N. Lambeth
摘要： A compensator for inserting a signal segment into a video signal in substitution for a signal segment that is detected to be impaired is particularly adapted to use with discrete-sample-type video signals as, for example, may be derived using an imager having a grid of elemental imaging areas. Such compensator includes first and second registers that are capable of receiving new data in one mode and reading out data with recirculation thereof in a second mode. In operation, the registers reciprocate from one mode to the other on a scan-line by scan-line basis, but reciprocation is cancelled upon detection of a dropout or other signal impairment. Cancellation of a mode change automatically results in an insertion of recirculated information for a previous scan line.
摘要翻译： 用于将视频信号插入到视频信号中以代替被检测到受损的信号段的补偿器特别适合于使用离散采样型视频信号，例如可以使用具有网格的成像器导出 的元素成像领域。 这种补偿器包括能够以一种模式接收新数据的第一和第二寄存器，并且在第二模式中通过再循环来读出数据。 在操作中，寄存器通过扫描线在扫描线上从一种模式向另一种模式往复运动，但是在检测到丢失或其他信号损伤时，往复运动被取消。 取消模式更改会自动导致先前扫描线的再循环信息的插入。
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4.发明授权Method of time axis control in an information recording system for compensation of tracking error caused by track jumping 失效信息记录系统中时间轴控制方法，用于补偿轨道跳跃引起的跟踪误差
公开(公告)号：US4763205A
公开(公告)日：1988-08-09
申请号：US767450
申请日：1985-08-20
申请人： Takashi Okano
发明人： Takashi Okano
CPC分类号： G11B20/025 , G11B27/10 , H04N5/953 , Y10S358/907
摘要： A method for time axis control for performing both coarse and fine time axis adjustment in accordance with relative speeds of a recording disk and a playback unit while the playback unit is recording or reproducing signals on or from the disk, wherein a color image is displayed during a scanning operation, which displayed image is natural in appearance. The pickup unit is first caused to follow a track formed on the recording medium in a tracking control operation. Repetitive track jumping operations are then effected over successive tracks by moving the pickup unit. For the track jumping operations, a time constant circuit within a circuit which performs the fine time axis adjustment is reset at least for the duration of each track jumping operation.
摘要翻译： 一种用于时间轴控制的方法，用于在重放单元在盘上记录或再现信号时根据记录盘和重放单元的相对速度执行粗调和精细时间轴调整，其中在 显示图像的扫描操作是外观自然的。 在跟踪控制操作中，首先使拾取单元跟随在记录介质上形成的轨道。 然后通过移动拾取单元在连续轨道上实现重复轨迹跳跃操作。 对于轨道跳跃操作，执行精细时间轴调整的电路内的时间常数电路至少在每个轨道跳跃操作的持续时间内被复位。
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公开(公告)号：US4754341A
公开(公告)日：1988-06-28
申请号：US847318
申请日：1986-04-02
申请人： Yasuhito Kobayashi
发明人： Yasuhito Kobayashi
摘要： A skew jump correcting circuit for correcting a skew jump having a constant time interval between successive field signals in which the field signals are delayed in a variable delay line by a first delay period of time immediately after a switching point near the time the skew jump occurs, the amount of delay being gradually changed thereafter so that immediately before the next switching point the field signal is delayed by a second delay.
摘要翻译： 一种偏斜跳变校正电路，用于校正在连续的场信号之间具有恒定时间间隔的偏斜跳跃，其中场信号在可变延迟线中延迟紧接在倾斜跳跃发生时的切换点之后的第一延迟时间段 ，此后的延迟量逐渐变化，使得在下一个切换点之前，场信号被延迟第二延迟。
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公开(公告)号：US4367494A
公开(公告)日：1983-01-04
申请号：US151101
申请日：1980-05-19
申请人： Kenji Kimura
发明人： Kenji Kimura
CPC分类号： H04N5/953
摘要： In the disclosed recorder-player, an image signal is converted to multi-channel signals and a horizontal synchronizing signal is obtained therefrom by separating a synchronizing signal from the multi-channel signals to operate a flywheel oscillator, and by a loop in each channel in which a time base corrector in each channel operates a sync separator and in response to a coincident output from the sync separator in each channel and an output from the flywheel oscillator.
摘要翻译： 在所公开的记录仪器中，图像信号被转换为多声道信号，并且通过从多声道信号中分离同步信号来获得水平同步信号，以操作飞轮振荡器，并且通过每个通道中的循环 每个通道中的时基校正器操作同步分离器并且响应于来自每个通道中的同步分离器的一致输出和来自飞轮振荡器的输出。
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公开(公告)号：US3947874A
公开(公告)日：1976-03-30
申请号：US519359
申请日：1974-10-29
申请人： Robert A. Lentz
发明人： Robert A. Lentz
CPC分类号： H04N5/953
摘要： Time base instability of signals in a train thereof is corrected by use of analog shift registers. As employed in the correction of time base instability of video signals, plural analog shift registers are used. The same clock rate is used, respectively, to clock video signals into and out of analog shift registers. The clock rate is set so that samples of a video signal which has a normal duration may load all stages of an analog shift register within the duration of the normal signal. Thus, samples of a stretched signal fully load all stages of the analog shift register, the trailing part of such stretched signal being discarded. Conversely, a video signal which has been compressed, although being fully loaded into the analog shift register, loads less than all of the analog shift register stages.
摘要翻译： 通过使用模拟移位寄存器校正其列车中的信号的时基不稳定性。 如在视频信号的时基不稳定性的校正中使用的，使用多个模拟移位寄存器。 分别使用相同的时钟频率将视频信号输入和输出模拟移位寄存器。 设置时钟速率使得具有正常持续时间的视频信号的样本可以在正常信号的持续时间内加载模拟移位寄存器的所有级。 因此，拉伸信号的样本完全加载模拟移位寄存器的所有级，这种拉伸信号的尾部被丢弃。 相反，已经被压缩的视频信号尽管被完全加载到模拟移位寄存器中，但是比所有的模拟移位寄存器级加载少。
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公开(公告)号：US3932888A
公开(公告)日：1976-01-13
申请号：US477583
申请日：1974-06-10
CPC分类号： H04N5/953
摘要： Time base instability of signals in a train thereof is corrected by use of analog shift registers. As employed in the correction of time base instability of video signals, plural analog shift registers are used. Two clock rates are used, respectively, to clock video signals into and out of the analog shift registers. The clock-in rate is set so that samples of a video signal which has been stretched a predetermined amount may load all stages of an analog shift register within the duration of the stretched signal. The clock-out rate is set to unload all stages of an analog shift register within the nominal duration of a video signal.
摘要翻译： 通过使用模拟移位寄存器校正其列车中的信号的时基不稳定性。 如在视频信号的时基不稳定性的校正中使用的，使用多个模拟移位寄存器。 分别使用两个时钟速率来将视频信号输入和输出模拟移位寄存器。 设定时钟速率，使得已经被拉伸了预定量的视频信号的样本可以在拉伸信号的持续时间内加载模拟移位寄存器的所有级。 时钟输出速率设置为在视频信号的标称持续时间内卸载模拟移位寄存器的所有级。
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公开(公告)号：US09876979B1
公开(公告)日：2018-01-23
申请号：US15371009
申请日：2016-12-06
发明人： Chun-Hsiang Chang , Yu-Shen Yang , Yingkan Lin , Liping Deng
CPC分类号： H04N5/378 , G05F1/575 , H01L27/14643 , H03B5/1271 , H03B5/366 , H03B2201/0275 , H04N5/374 , H04N5/953
摘要： An example current generator may include a low dropout regulator (LDO) coupled to receive a reference voltage and provide a reference current in response, where the LDO adjusts a current level of the current reference in response to a calibration signal. A current controlled oscillator coupled to receive a reference current copy from the LDO and generate an oscillating signal in response, where a period of the oscillating signal is based at least in part on a level of the reference current copy. A pulse generator coupled to provide an adjustable pulse signal. A counter coupled to determine a number of periods of the oscillating signal occurring during a duration of the pulse signal, and provide a control signal indicative of such, and a digital calibration circuit coupled to receive the control signal and provide the calibration signal to the LDO in response.
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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.
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