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41. 发明授权

US4673980A Video-signal time-axis correction apparatus 失效
标题翻译：视频信号时间轴校正装置
公开(公告)号：US4673980A
公开(公告)日：1987-06-16
申请号：US865988
申请日：1986-05-22
申请人： Keinosuke Murakami , Kazumasa Enami , Nobuyuki Yagi
发明人： Keinosuke Murakami , Kazumasa Enami , Nobuyuki Yagi
IPC分类号： G11B20/02 , H04N5/073 , H04N5/95 , H04N5/953 , H04N5/956
CPC分类号： H04N5/073
摘要： A time-axis of a digital video-signal is converted to a standard time-axis by changing a clock signal contained therein to a standard clock signal and by locking phases of input synchronizing signals contained therein onto the phase of the standard clock signal through a memory for alternately writing and reading the digital video signal at one half of the period of the standard clock signal. As a result, the time-axis correction of the digital video signal is efficiently effected through the memory having a small capacity and a simplified controlling arrangement.
摘要翻译：数字视频信号的时间轴通过将其中包含的时钟信号改变为标准时钟信号并通过将包含在其中的输入同步信号的相位锁定在标准时钟信号的相位上而被转换为标准时间轴存储器，用于在标准时钟信号的周期的一半周期交替地写入和读取数字视频信号。结果，通过具有小容量和简化的控制装置的存储器有效地实现了数字视频信号的时间轴校正。

42. 发明授权

US4623940A Magnetic reproducing apparatus 失效
标题翻译：磁再现装置
公开(公告)号：US4623940A
公开(公告)日：1986-11-18
申请号：US525567
申请日：1983-08-22
申请人： Tokikazu Matsumoto , Masahiro Honjo , Masaaki Kobayashi
发明人： Tokikazu Matsumoto , Masahiro Honjo , Masaaki Kobayashi
IPC分类号： G11B5/027 , G11B5/53 , G11B15/14 , G11B20/20 , H04N5/783 , H04N5/93 , H04N5/95 , H04N5/953
CPC分类号： G11B15/14 , G11B20/20 , G11B5/531 , H04N5/783 , H04N5/953
摘要： A magnetic reproducing apparatus which has a pair of main rotatable heads having different azimuth angles and a pair of auxiliary rotatable heads having different azimuth angles. When a magnetic tape is played back while it runs at a speed different from that at which it runs during a recording mode, playback output signals from the main and auxiliary rotatable heads are switched over to replace a reduction in the outputs from the main rotatable heads with the outputs from the auxiliary rotatable heads to produce a combined playback output signal. The combined playback output signal is passed through a variable delay line having a delay time varied by an output from a detector circuit which detects variations in horizontal synchronous signal intervals of the combined playback output signal. This varied delay time of the variable delay line can eliminate any skew distortions which would appear on a displayed image on the screen due to the variations in horizontal synchronous signal intervals of the combined playback output signal.
摘要翻译：具有一对具有不同方位角的主旋转头和具有不同方位角的一对辅助旋转头的磁再现装置。当磁带在与记录模式期间运行的速度不同的速度下播放时，来自主旋转磁头和辅助旋转磁头的重放输出信号被切换以替代来自主旋转磁头的输出的减小与来自辅助可旋转头的输出产生组合的重放输出信号。组合的重放输出信号通过可变延迟线，该可变延迟线具有由检测器电路的输出变化的延迟时间，该检测器电路检测组合的重放输出信号的水平同步信号间隔的变化。可变延迟线的这种变化的延迟时间可以消除由于组合的重放输出信号的水平同步信号间隔的变化而在屏幕上显示的图像上出现的任何偏斜失真。

43. 发明授权

US4607360A 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：US4607360A
公开(公告)日：1986-08-19
申请号：US560093
申请日：1983-12-12
申请人： Tsutomu Fukui
发明人： Tsutomu Fukui
IPC分类号： H04N5/953 , G11B20/02 , H04N9/893 , H04N5/95 , G11B20/22
CPC分类号： H04N9/893
摘要： A time-axis correcting circuit for a recorded data reproducing device, such as a video tape player or video disc player, in which dominant and other time-axis errors are substantially completely suppressed. The reproduced signal is applied to the input of a variable delay circuit. A timing data component, such as the color burst signal, is separated from the delayed reproduced signal and applied to a flywheel oscillator, the open-loop oscillation frequency of which is set at least approximately to the frequency of a dominant time-axis error component to be suppressed. The output of the flywheel oscillator is applied through a voltage-controlled oscillator to the control input of the variable delay circuit.
摘要翻译：用于基本上完全抑制显性和其它时间轴误差的诸如录像带播放器或视频盘播放器的记录数据再现装置的时间轴校正电路。再生信号被施加到可变延迟电路的输入端。诸如色同步信号的定时数据分量与延迟的再现信号分离并施加到飞轮振荡器，该飞轮振荡器的开环振荡频率至少近似于主要时间轴误差分量的频率被压制飞轮振荡器的输出通过压控振荡器施加到可变延迟电路的控制输入。

44. 发明授权

US4532541A Apparatus and method for correcting timebase errors 失效
标题翻译：校正时基误差的装置和方法
公开(公告)号：US4532541A
公开(公告)日：1985-07-30
申请号：US420597
申请日：1982-09-20
申请人： J. Carl Cooper
发明人： J. Carl Cooper
IPC分类号： G11B20/18 , H04N5/953 , H04N5/14
CPC分类号： G11B20/18 , H04N5/953
摘要： Improvements to timebase correction devices utilizing clocked analog delay lines are shown. Problems of clocked analog delay lines such as timing errors in the phase of internal sample and holds with respect to their clock, drifting of the gain and offset, and high frequency noise are corrected by use of external sample and hold circuits, external delays, automatic gain and offset circuits and high frequency preemphasis circuits.
摘要翻译：示出了利用时钟模拟延迟线的时基校正装置的改进。通过使用外部采样和保持电路，外部延迟，自动校正，校正时钟模拟延迟线的问题，例如内部采样和保持相位相位时钟，增益和偏移漂移以及高频噪声的定时误差增益和偏移电路以及高频预加重电路。

45. 发明授权

US4220968A Circuit for generating a constant reference oscillation from a video signal affected by a time error 失效
标题翻译：用于由受时间误差影响的视频信号产生恒定参考振荡的电路
公开(公告)号：US4220968A
公开(公告)日：1980-09-02
申请号：US946385
申请日：1978-09-27
申请人： Werner Scholz
发明人： Werner Scholz
IPC分类号： H04N5/76 , G11B20/02 , H04N5/953 , H04N5/795
CPC分类号： H04N5/953
摘要： A circuit for generating a constant reference oscillation from a video signal affected by a time error, comprising, a cut-off stage for receiving the video signal affected by the time error and outputting sync pulses and vertical sync pulses, a first frequency divider connected to the cutoff stage for receiving the vertical sync pulses and outputting divided frequency pulses and a first comparator stage connected to the first frequency divider for receiving the divided frequency pulses. The first comparator stage has an output connected to an oscillator and the oscillator, in turn, has an output connected to a second frequency divider which is also connected to an input of the first comparator stage. A second comparator stage is connected between the cutoff stage sync pulses and an output of the oscillator for producing an output and a clock oscillator is connected to the output and, in turn, is connected to a bucket chain which receives the video signal affected by the time error and outputs a video signal which is free of the time error.
摘要翻译：一种用于由受时间误差影响的视频信号产生恒定参考振荡的电路，包括用于接收受时间误差影响的视频信号并输出同步脉冲和垂直同步脉冲的截止级，连接到用于接收垂直同步脉冲并输出分频频率脉冲的截止级和连接到第一分频器的第一比较器级，用于接收分频频率脉冲。第一比较器级具有连接到振荡器的输出，并且振荡器又具有连接到第二分频器的输出，第二分频器也连接到第一比较器级的输入端。第二比较器级连接在截止级同步脉冲和用于产生输出的振荡器的输出之间，并且时钟振荡器连接到输出，并且又连接到桶链，其接收受影响的视频信号时间误差并输出没有时间误差的视频信号。

46. 发明授权

US3984867A Apparatus for modifying the time base of signals 失效
标题翻译：用于修改信号时基的装置
公开(公告)号：US3984867A
公开(公告)日：1976-10-05
申请号：US555668
申请日：1975-03-05
申请人： Victor M. Harnandez
发明人： Victor M. Harnandez
IPC分类号： H04N5/953 , H04N5/785
CPC分类号： H04N5/953
摘要： Time base instability of signals in a train thereof is corrected by use of a frequency controlled delay device. As employed in the correction of time base instability of video signals, a charge-coupled delay device is used. The delay device is clocked by a frequency which is proportional to the reciprocal of the phase difference between a fluttering input signal and a reference synchronizing signal. This corrects errors caused by the nonlinear transfer characteristics of the delay device, i.e. the transit time through the device is porportional to the reciprocal of the frequency of the clock signal which controls the delay device.
摘要翻译：通过使用频率控制延迟装置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校正中使用的，使用电荷耦合延迟装置。延迟装置由与振荡输入信号和参考同步信号之间的相位差的倒数成比例的频率计时。这校正了由延迟装置的非线性传送特性引起的错误，即，通过装置的传播时间与控制延迟装置的时钟信号的频率的倒数相分离。

47. 发明授权

US3959815A Arrangements for time base error compensation 失效
标题翻译：针对时基错误补偿的安排
公开(公告)号：US3959815A
公开(公告)日：1976-05-25
申请号：US437285
申请日：1974-01-28
申请人： Gerhard Rotter , William A. Buchan , Rainer AN DER Heiden
发明人： Gerhard Rotter , William A. Buchan , Rainer AN DER Heiden
IPC分类号： G05D13/62 , G11B15/467 , H04N5/953 , H04N5/795 , G11B15/54
CPC分类号： H04N5/953
摘要： This invention relates to methods or circuit arrangements for compensating time base error in recording systems, particularly video recording systems, by electro-mechanical and electronic means. The circuit arrangements provide for separation of the horizontal synchronizing pulses from the video information contained in a signal coming from a recorded video tape, comparison of the phase of these horizontal synchronizing pulses to the phase of a reference pulse, and adjustment of the frequency of the horizontal synchronizing pulses which go to the video receiver to eliminate time base error.

48. 发明授权

US3931638A Apparatus for modifying the time base of signals 失效
标题翻译：用于修改信号时基的装置
公开(公告)号：US3931638A
公开(公告)日：1976-01-06
申请号：US432363
申请日：1974-01-10
申请人： Robert A. Lentz , James U. Lemke
发明人： Robert A. Lentz , James U. Lemke
IPC分类号： G11B20/02 , H04N5/953 , H04N5/79
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, paired analog shift registers are used. While one register has samples of one video line signal clocked into it at a rate corresponding to its time base instability, the other register clocks out, at a uniform rate, analog signals of the previous line, and vice versa.
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。如在校正视频信号的时基不稳定中使用的，使用成对的模拟移位寄存器。虽然一个寄存器具有以对应于其时基不稳定性的速率定时输入的一个视频线信号的样本，但是另一个寄存器以均匀的速率计时前一行的模拟信号，反之亦然。

49. 发明授权

US3863022A Television signal clocked delay line for delay by an integer number of horizontal scanning lines driven by a pilot signal 失效
标题翻译：电视信号延时延迟线由引导信号驱动的水平扫描线整数
公开(公告)号：US3863022A
公开(公告)日：1975-01-28
申请号：US25122972
申请日：1972-05-08
申请人： TED BILDPLATTEN
发明人： BRUCH WALTER
IPC分类号： H04N5/93 , H04N5/953 , H04N9/00 , H04N5/76
CPC分类号： H04N5/953 , H04N5/93
摘要： A circuit for delaying video signals by one or more picture line scanning periods when the line scanning rate fluctuates with time, including a memory having elements supplied in sequence with respective successively occurring segments of one picture line signal, a generator for producing a series of clock pulses during each line scanning period, with each clock pulse reading out the segment previously stored in each successive element during a subsequent line scanning period, and a control system which maintains a fixed relation between the clock pulse rate and the line scanning rate.
摘要翻译：一种用于当线扫描速率随时间波动时通过一个或多个图像行扫描周期延迟视频信号的电路，包括具有按照一个图像线信号的相应连续发生的段依次提供的元件的存储器，用于产生一系列时钟每个时钟脉冲在随后的行扫描期间读出预先存储在每个连续元件中的段，以及保持时钟脉冲速率和行扫描速率之间的固定关系的控制系统。

50. 发明授权

US3327299A Skew control system with plural complementary delay means 失效
标题翻译：具有多个互补延迟装置的倾斜控制系统
公开(公告)号：US3327299A
公开(公告)日：1967-06-20
申请号：US28530163
申请日：1963-06-04
申请人： MINNESOTA MINING & MFG
发明人： JOHNSON WAYNE R
IPC分类号： G11B20/20 , H04N5/93 , H04N5/953
CPC分类号： G11B20/20 , H04N5/93 , H04N5/953

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