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公开(公告)号：US4517611A
公开(公告)日：1985-05-14
申请号：US388598
申请日：1982-06-15
申请人： Kenji Kimura
发明人： Kenji Kimura
IPC分类号： H04N5/91 , G11B15/02 , G11B20/02 , H04N5/335 , H04N5/341 , H04N5/372 , H04N5/374 , H04N5/782
摘要： A system for recording a video signal derived from a solid state image sensing device including a number of picture cells is disclosed. The video signal is read-out of the solid state image sensing device and is recorded on a magnetic tape of a video tape recording device. When a shutter release button is pushed, the magnetic tape is rewound by a given length and then the magnetic tape is traveled forward. During the forward movement of the magnetic tape, the video tape recording device is set into a reproduction mode and the video signal which has been previously recorded is reproduced. As soon as the video signal is not detected from the magnetic tape, the video tape recording device is changed into a record mode and after a given servo lock time, a shutter is opened for a given period. Immediately after the shutter is closed again, the video signal is read-out of the solid state image sensing device and then is recorded on the magnetic tape which is traveled at a given constant speed.
摘要翻译： 公开了一种用于记录从包括多个图像单元的固态图像感测装置得到的视频信号的系统。 视频信号被读出固态图像感测装置，并被记录在磁带录像装置的磁带上。 当按下快门释放按钮时，将磁带重新卷绕给定的长度，然后磁带前进。 在磁带的向前移动期间，录像带记录装置被设置为再现模式，并且再现了先前记录的视频信号。 一旦没有从磁带检测到视频信号，则录像带记录装置被改变成记录模式，并且在给定的伺服锁定时间之后，在给定的时间段内打开快门。 在快门再次关闭之后，立即读出固态图像感测装置的视频信号，然后记录在以给定的恒定速度行进的磁带上。
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公开(公告)号：US4498110A
公开(公告)日：1985-02-05
申请号：US369087
申请日：1982-04-16
申请人： Kenji Kimura
发明人： Kenji Kimura
CPC分类号： G11B27/005 , G11B2220/20 , G11B2220/2587
摘要： In an optical video disc player, a still picture mode reproduction is effected by returning a light spot on an optical video disc by one track pitch in its radial direction after each revolution of the disc. The displacement of the light spot is carried out by supplying a returning pulse to a moving coil coupled with an objective lens to move the objective lens in a disc radial direction. In order to cause the light spot to trace a track precisely, a tracking error due to an eccentricity of the disc is detected and the objective lens is moved in the disc radial direction in accordance with the detected tracking error. An amplitude of the returning pulse is modulated in accordance with a velocity component of the displacement of the objective lens under the tracking condition, so that the light spot is returned accurately by one track pitch.
摘要翻译： 在光学视频光盘播放器中，通过在盘旋转之后，在光学视频盘上的光点在其径向方向上返回一个轨道间距来实现静止图像模式再现。 通过向与物镜耦合的运动线圈提供返回脉冲来实现光斑的位移，以使物镜沿盘径向移动。 为了使光点精确地跟踪轨迹，检测到由于盘的偏心引起的跟踪误差，并且根据检测到的跟踪误差物镜在盘径向上移动。 根据跟踪条件下的物镜的位移的速度分量来调制返回脉冲的幅度，使得光点被精确地返回一个轨道间距。
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公开(公告)号：US4494225A
公开(公告)日：1985-01-15
申请号：US365311
申请日：1982-04-05
申请人： Kenji Kimura
发明人： Kenji Kimura
CPC分类号： G11B7/085 , G11B27/005 , G11B2220/20 , G11B2220/2587 , Y10S358/907
摘要： In an optical video disc player, a still picture mode reproduction is effected by returning a light spot on a disc by one track pitch in its radial direction after each revolution of the disc. The displacement of the light beam is carried out by supplying a returning signal to a moving coil coupled with an objective lens. An amplitude of the returning signal is automatically adjusted by means of a negative feedback loop to such a value that the light spot is shifted accurately by one track pitch. The negative feedback loop includes an envelope detector for detecting a descent of a reproduced signal, a sampling pulse generator for producing a sampling pulse in response to a first descent during the displacement of the light spot, a pulse generator for producing a returning pulse having a constant amplitude, a sawtooth generator actuated by the returning pulse to produce a sawtooth signal, a phase comparator for sampling the sawtooth signal by the sampling signal to produce a control signal and a pulse level modulator for modifying the level of the returning pulse with the control signal.
摘要翻译： 在光学视频光盘播放器中，通过在光盘旋转之后，在光盘上的光点在其径向方向上返回一个光道间距来实现静止图像模式再现。 通过将返回信号提供给与物镜耦合的运动线圈来执行光束的位移。 通过负反馈回路将返回信号的幅度自动调整为使得光点精确移位一个磁道间距的值。 负反馈回路包括用于检测再生信号下降的包络检测器，用于在光点位移期间响应于第一次下降而产生采样脉冲的采样脉冲发生器，产生具有 恒定振幅，由返回脉冲驱动以产生锯齿波信号的锯齿波发生器，用于通过采样信号对锯齿波信号进行采样以产生控制信号的相位比较器，以及用于通过控制修改返回脉冲电平的脉冲电平调制器 信号。
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公开(公告)号：US4489350A
公开(公告)日：1984-12-18
申请号：US396778
申请日：1982-07-09
申请人： Kenji Kimura
发明人： Kenji Kimura
IPC分类号： H04N5/235 , H04N5/335 , H04N5/341 , H04N5/351 , H04N5/353 , H04N5/357 , H04N5/369 , H04N5/372 , H04N5/374 , H04N3/14 , H04N5/26
CPC分类号： H04N5/2353 , H04N5/2351
摘要： A solid-state image pickup device has an image pickup element with a light-receiving surface on which a plurality of photoelectric conversion cells are arranged; a timing circuit, coupled to at least one and less than all of said photoelectric conversion cells of the image pickup element, for generating a timing signal when an output level of the photoelectric conversion cell corresponding to the amount of light incident on the photoelectric conversion cell connected thereto reaches a predetermined reference level; and a data reading unit coordinated with a shutter, coupled to the timing circuit for optically shielding the light-receiving surface of the image pickup element in response to the timing signal. The data reading unit reads image data on the light-receiving surface in an interval following the timing signal.
摘要翻译： 固态图像拾取装置具有其上布置有多个光电转换单元的受光面的图像拾取元件; 定时电路，耦合到图像拾取元件的至少一个并且小于所有的所述光电转换单元，用于当光电转换单元的输出电平对应于入射到光电转换单元上的光量时产生定时信号 连接到达预定参考水平; 以及数据读取单元，其与快门协调，耦合到定时电路，用于响应于定时信号光学屏蔽图像拾取元件的光接收表面。 数据读取单元在定时信号之后的间隔中读取光接收表面上的图像数据。
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公开(公告)号：US4433349A
公开(公告)日：1984-02-21
申请号：US282074
申请日：1981-07-10
申请人： Kenji Kimura
发明人： Kenji Kimura
CPC分类号： G11B5/03
摘要： A bias control apparatus for a tape recorder includes a signal source circuit for generating first and second signals, a bias signal generating circuit for providing a composite bias signal containing a frequency component of the second signal, a recording circuit for recording into a recording tape a recording current corresponding to the composite bias signal and the first signal, a playback circuit for taking out a third signal from said recording tape, the third signal containing a signal component corresponding to the first and second signals, a detecting circuit for detecting a fourth signal corresponding to an amplitude component of the second signal from the third signal in synchronism with the second signal, and a control means for changing a magnitude of the composite bias signal on the basis of the fourth signal. The bias signal generating circuit, the recording circuit, the playback circuit, the detecting circuit, and the control circuit cooperatively make up a servo loop for controlling the composite bias signal to have a given magnitude.
摘要翻译： 一种用于磁带录像机的偏置控制装置，包括用于产生第一和第二信号的信号源电路，用于提供包含第二信号的频率分量的复合偏置信号的偏置信号产生电路，用于记录到记录带a 记录与复合偏置信号和第一信号相对应的电流，用于从所述记录带取出第三信号的重放电路，所述第三信号包含对应于第一和第二信号的信号分量;检测电路，用于检测第四信号 对应于与第二信号同步的来自第三信号的第二信号的幅度分量;以及控制装置，用于根据第四信号改变复合偏置信号的幅度。 偏置信号发生电路，记录电路，回放电路，检测电路和控制电路协调地构成用于控制复合偏置信号具有给定量值的伺服回路。
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公开(公告)号：US4419614A
公开(公告)日：1983-12-06
申请号：US352475
申请日：1982-02-26
申请人： Kenji Kimura
发明人： Kenji Kimura
CPC分类号： G11B7/08 , G11B7/0929
摘要： In an apparatus having an objective lens for projecting a light spot on a track of a disc-shaped record medium, the objective lens is driven in a tracking direction perpendicular to an optical axis of the objective lens and to a track tangential direction in accordance with a tracking error signal representing a deviation of the light spot from the track by means of a tracking control mechanism including first and second permanent magnets, first and second magnetic members connecting the same poles of the permanent magnets, a third magnetic member holding the objective lens and arranged movably in the tracking direction within a space surrounded by the first and second permanent magnets and first and second magnetic members, and first and second coils wound around the first and second magnetic members at middle portions thereof. A resonant vibration is dumped by providing a motional feedback loop in which a displacement of the third magnetic member is detected by a pair of magnetoelectro transducing elements secured to the first and second permanent magnets, respectively at middle portions thereof so as to detect change of magnetic fluxes leaked out of the third magnet member in opposite directions along the tracking direction.
摘要翻译： 在具有用于将光点投射在盘状记录介质的轨道上的物镜的装置中，物镜沿着与物镜的光轴垂直的跟踪方向和根据磁盘切线方向被驱动 跟踪误差信号，通过包括第一和第二永磁体的跟踪控制机构表示光点与轨道的偏差;连接永磁体的相同磁极的第一和第二磁性部件;保持物镜的第三磁性部件 并且在由第一和第二永磁体以及第一和第二磁性构件围绕的空间内在跟踪方向上可移动地布置，以及在其中间部分缠绕在第一和第二磁性构件周围的第一和第二线圈。 通过提供一个运动反馈回路来转移共振振动，其中通过分别固定到第一和第二永磁体的中间部分的一对磁电转换元件来检测第三磁性部件的位移，以便检测磁性变化 助焊剂沿跟踪方向沿相反方向从第三磁体构件泄漏出来。
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公开(公告)号：US4376914A
公开(公告)日：1983-03-15
申请号：US242239
申请日：1981-03-10
申请人： Kenji Kimura
发明人： Kenji Kimura
CPC分类号： H02P6/08 , Y10S388/915 , Y10S388/921
摘要： A motor control device is disclosed. The device comprises an electric motor, a first counter for counting clock signals having a certain frequency, means for resetting the first counter by an output corresponding to a rotational frequency of the motor and storing a counted content of the first counter immediately before the reset, a second counter for counting clock signals having a certain frequency higher than the above clock signal, and means for comparing the content of the first counter with that of the second counter, resetting the second counter by a coincidence of both the contents, generating output signals from the reset the second counter to the reset of the first counter, and controlling a rotational frequency of the motor by the output signals.
摘要翻译： 公开了一种电动机控制装置。 该装置包括电动机，用于计数具有一定频率的时钟信号的第一计数器，用于通过与电动机的转动频率对应的输出来复位第一计数器的装置，并且在紧接复位之前存储第一计数器的计数内容， 用于对具有比上述时钟信号高的特定频率的时钟信号进行计数的第二计数器，以及用于将第一计数器的内容与第二计数器的内容进行比较的装置，通过两者的一致重新设置第二计数器，产生输出信号 从第二计数器复位到第一计数器的复位，以及通过输出信号控制电动机的转速。
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公开(公告)号：US4370038A
公开(公告)日：1983-01-25
申请号：US326592
申请日：1981-12-02
申请人： Kenji Kimura
发明人： Kenji Kimura
CPC分类号： G02B7/36
摘要： In a system for driving automatically an objective lens into a desired focal position so as to form a focussed image on a film plane, in order to derive a driving signal for a driving motor moving the objective lens along its optical axis, an auxiliary lens is arranged movably along its optical axis, a moving coil and a position detecting coil are wound around a lens holder, magnets cooperating with the coils are arranged around the coils, and an array of photoelectric converting elements is arranged to receive a light flux transmitted through the auxiliary lens. The auxiliary lens is vibrated about a reference position by supplying a sinusoidal signal to the moving coil. An output signal from the array of photoelectric converting elements is supplied to a focus detection circuit to generate sampling pulses at such timings that the photoelectric converting elements receive the best focussed image. An output signal from the coil is supplied to a lens position detecting circuit to produce a lens position signal representing a deviation of the auxiliary lens with respect to the reference position. The lens position signal is sampled and held by the sampling signal to produce the driving signal for the motor.
摘要翻译： 在用于将物镜自动地驱动到期望焦点位置以在膜平面上形成聚焦图像的系统中，为了导出用于沿其光轴移动物镜的驱动电机的驱动信号，辅助透镜是 沿着其光轴可移动地布置有运动线圈和位置检测线圈绕在透镜架上，与线圈配合的磁体围绕线圈布置，并且光电转换元件阵列被布置成接收透射通过的光束 辅助镜头 通过向运动线圈提供正弦信号，辅助透镜围绕参考位置振动。 来自光电转换元件阵列的输出信号被提供给焦点检测电路，以在光电转换元件接收最佳聚焦图像的定时产生采样脉冲。 来自线圈的输出信号被提供给透镜位置检测电路，以产生表示辅助透镜相对于基准位置的偏差的透镜位置信号。 透镜位置信号由采样信号采样和保持，以产生电机的驱动信号。
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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：US4352473A
公开(公告)日：1982-10-05
申请号：US199324
申请日：1980-10-21
申请人： Ken Satoh , Seizo Watanabe , Sinichi Saitou , Toshikazu Kato , Ken Ohshima , Tsutomu Shibata , Kenji Kimura
发明人： Ken Satoh , Seizo Watanabe , Sinichi Saitou , Toshikazu Kato , Ken Ohshima , Tsutomu Shibata , Kenji Kimura
IPC分类号： G11B23/087 , G03B1/04 , G11B15/32
CPC分类号： G11B23/08785 , G11B23/08757
摘要： A tape cassette according to this invention comprises at least three guide rollers disposed inside the housing of the tape cassette. The at least three guide rollers define a position of the magnetic recording tape of the tape cassette relative to the housing across the thickness thereof while the tape is travelling from one of two reel hubs held by the housing along a path extending adjacent a front wall of the housing, the front wall having openings for the insertion of a magnetic head and a pinch roller.
摘要翻译： 根据本发明的带盒包括设置在盒式磁带的壳体内的至少三个导辊。 所述至少三个引导辊限定了磁带盒的磁记录带相对于壳体横跨其厚度的位置，同时磁带沿着由壳体保持的两个卷轴轮毂之一沿着相邻于外壳的前壁延伸的路径行进 壳体，前壁具有用于插入磁头和夹送辊的开口。
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