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    Apparatus for reading optical data from a motion picture film and a light source therefor
    2.
    发明授权
    Apparatus for reading optical data from a motion picture film and a light source therefor 有权
    用于从电影胶片及其光源读取光学数据的装置

    公开(公告)号：US06188806B1

    公开(公告)日：2001-02-13

    申请号：US09354708

    申请日：1999-07-16

    申请人： Kiyoshi Inatome ,  Etsuro Saito ,  Katsuichi Tachi

    发明人： Kiyoshi Inatome ,  Etsuro Saito ,  Katsuichi Tachi

    IPC分类号： G06K700

    CPC分类号： G11B7/1384 ,  G03B31/02 ,  G11B7/0032 ,  G11B7/0938 ,  G11B7/0956 ,  G11B7/14 ,  G11B20/18 ,  G11B20/1803 ,  G11B20/1809 ,  H03M13/1515 ,  H03M13/29 ,  H03M13/2906 ,  H03M13/2924

    摘要： A motion picture film having digital audio data recorded in at least one sound track thereof. Such digital audio data includes a plurality of bytes of data each having 8 bits of data. Each respective bit of each byte of audio data is recorded in a sound track of the film in the film running direction and each byte is arranged side-by-side in a direction normal to the film running direction to form a compression processing block. C1 parity data is added to each such compression processing block and C2 parity data is added after a predetermined interval of plural compression processing blocks. Error correction may be performed by utilizing the C1 and C2 parity data for each compression processing block and at the predetermined interval of plural compression blocks.

    摘要翻译： 具有记录在其至少一个音轨中的数字音频数据的电影胶卷。 这样的数字音频数据包括每个具有8位数据的多个数据字节。 音频数据的每个字节的每个位被记录在胶片运行方向上的胶片的声轨中，并且每个字节沿垂直于胶片运行方向的方向并排布置以形成压缩处理块。 将C1奇偶校验数据添加到每个这样的压缩处理块，并且在多个压缩处理块的预定间隔之后添加C2奇偶校验数据。 可以通过利用每个压缩处理块的C1和C2奇偶校验数据并且在多个压缩块的预定间隔来执行错误校正。

    Audio data readout device for motion picture film and clock generating device in motion picture film changeover system
    5.
    发明授权
    Audio data readout device for motion picture film and clock generating device in motion picture film changeover system 失效
    用于电影胶片切换系统中的电影胶片和时钟发生装置的音频数据读出装置

    公开(公告)号：US5608473A

    公开(公告)日：1997-03-04

    申请号：US399436

    申请日：1995-03-07

    申请人： Katsuichi Tachi ,  Kozo Kaminaga ,  Jeffrey E. Taylor ,  Howard J. Flemming

    发明人： Katsuichi Tachi ,  Kozo Kaminaga ,  Jeffrey E. Taylor ,  Howard J. Flemming

    IPC分类号： G03B21/48 ,  G03B31/02 ,  G11B7/003 ,  G11B20/10 ,  G11B20/12 ,  G11B27/26 ,  G11B27/30 ,  G03B31/00

    CPC分类号： G11B20/1261 ,  G03B21/48 ,  G03B31/02 ,  G11B20/10527 ,  G11B27/26 ,  G11B27/3027 ,  G11B7/0032

    摘要： An audio data readout device for a motion picture film and a clock generating device in a changeover system for a motion picture film. First and second clock generating circuits generate first and second clocks of predetermined frequencies based upon a repetition frequency of perforations detected by first and second film readers and a repetition frequency of a track pitch of audio data, and route the resulting clocks to a changeover switch. At a changeover time, a changeover controller switchingly controls the changeover switch to select the second clock. A system clock generating circuit has loop characteristics of a longer time constant than the first or second clock generating circuits and smoothly locks the second clock to generate a system clock which is outputted. A stable and accurate system clock can be generated and outputted even when film running is unstable at the changeover time.

    摘要翻译： 一种用于电影胶片的音频数据读出装置和用于电影胶片的转换系统中的时钟产生装置。 第一和第二时钟产生电路基于由第一和第二胶片读取器检测到的穿孔的重复频率和音频数据的轨道间距的重复频率，产生预定频率的第一和第二时钟，并将所得到的时钟路由到切换开关。 在切换时间，切换控制器切换控制切换开关选择第二个时钟。 系统时钟发生电路具有比第一或第二时钟发生电路更长的时间常数的环路特性，并且平滑地锁定第二时钟以产生被输出的系统时钟。 即使胶片在切换时间不稳定，也可以产生和输出稳定且准确的系统时钟。

    Synchronizing apparatus for synchronizing audio signal with video signal
    6.
    发明授权
    Synchronizing apparatus for synchronizing audio signal with video signal 失效
    用于使音频信号与视频信号同步的同步装置

    公开(公告)号：US5463425A

    公开(公告)日：1995-10-31

    申请号：US393256

    申请日：1995-02-23

    申请人： Katsuichi Tachi

    发明人： Katsuichi Tachi

    IPC分类号： H04N5/073 ,  G11B27/032 ,  G11B27/10 ,  H04N5/04 ,  H04N5/60 ,  H04N5/92 ,  H04N5/93 ,  H04N7/04 ,  H04N7/088 ,  H04N9/475 ,  H04N5/76

    CPC分类号： G11B27/032 ,  G11B27/10 ,  H04N5/04 ,  H04N5/602 ,  H04N7/04 ,  H04N7/0881 ,  H04N5/9203 ,  H04N5/93

    摘要： A synchronizing apparatus includes an audio signal processing counter which is preset such that 735 or 736 samples of audio data exist in the vertical synchronizing signal of the video signal, such that the video and audio data are synchronized with each other within one field. Wherein a standard video signal is synchronized with the audio signal sampled by the clock and having a sampling frequency different from that of the video signal. In this synchronizing apparatus, audio signal processing counters (12), (14), (19a), (19b), (19) are preset so that 735 or 736 samples of audio data may exist in a vertical synchronizing signal of the standard video signal.

    摘要翻译： 同步装置包括一个音频信号处理计数器，该计数器被预设为使得视频信号的垂直同步信号中存在735或736个音频数据样本，使得视频和音频数据在一个场内彼此同步。 其中标准视频信号与由时钟采样的音频信号同步，并具有与视频信号的采样频率不同的采样频率。 在该同步装置中，音频信号处理计数器（12），（14），（19a），（19b），（19）被预设为使得音频数据的735或736个采样可以存在于标准视频的垂直同步信号中 信号。

    Code signal reading apparatus
    7.
    发明授权
    Code signal reading apparatus 失效
    代码信号读取装置

    公开(公告)号：US4423440A

    公开(公告)日：1983-12-27

    申请号：US302607

    申请日：1981-09-15

    申请人： Katsuichi Tachi

    发明人： Katsuichi Tachi

    IPC分类号： G11B27/28 ,  G11B15/00 ,  G11B20/10 ,  G11B27/30 ,  G11B27/32 ,  H04N5/91 ,  H04N5/76

    CPC分类号： G11B15/005 ,  G11B27/3054 ,  G11B27/323 ,  G11B2220/90

    摘要： The present invention allows code signals from a video signal to be read even though the signal is being reproduced at non-standard speed, a reference oscillator and programmable frequency divider are utilized with a time width detector and the frequency dividing ratio of the programmable frequency divider is controlled so as to assure that the video code signal can be detected even at non-standard speeds.

    摘要翻译： 本发明允许读取来自视频信号的代码信号，即使信号以非标准速度被再现，参考振荡器和可编程分频器也被用于时间宽度检测器，并且可编程分频器的分频比 被控制以确保甚至在非标准速度下也能够检测视频码信号。

    Apparatus for reproducing a video signal including an address signal when the video tape moves at various speeds
    8.
    发明授权
    Apparatus for reproducing a video signal including an address signal when the video tape moves at various speeds 失效
    用于在录像带以各种速度移动时再现包括地址信号的视频信号的装置

    公开(公告)号：US4282552A

    公开(公告)日：1981-08-04

    申请号：US49546

    申请日：1979-06-18

    申请人： Katsuichi Tachi ,  Ichiro Ninomiya ,  Jun Takayama

    发明人： Katsuichi Tachi ,  Ichiro Ninomiya ,  Jun Takayama

    IPC分类号： H04N5/91 ,  G11B5/09 ,  G11B5/588 ,  G11B15/18 ,  G11B15/467 ,  G11B20/18 ,  G11B27/10 ,  G11B27/28 ,  G11B27/30 ,  H04N5/78 ,  G11B21/02

    CPC分类号： G11B27/3054 ,  G11B15/1808 ,  G11B5/588

    摘要： A video signal reproducing apparatus capable of reproducing parallel record tracks formed on a tape which are scanned by a rotary head and wherein track address signals are recorded on respective vertical blanking interval sections of the record tracks which can be read out and displayed even though the tape moves at various speeds comprising a detecting means for detecting when said track address signals are not being read out and including shifting means for shifting the relative position of the rotary heads relative to the tape when the output of the detecting means continues longer than a predetermined time so as to assure that the address signals will be read at varying speeds of the tape.

    摘要翻译： 一种视频信号再现装置，其能够再现由磁带扫描的磁带上形成的并行记录磁迹，并且其中磁道地址信号被记录在记录磁道的相应垂直消隐间隔部分上，即使磁带 包括用于检测所述轨道地址信号何时未被读取的检测装置，并且包括当检测装置的输出持续比预定时间长时旋转磁头相对于磁带的相对位置的移位装置 以便确保以磁带的不同速度读取地址信号。

    Method of inserting an address signal in a video signal
    9.
    发明授权
    Method of inserting an address signal in a video signal 失效
    在视频信号中插入地址信号的方法

    公开(公告)号：US4159480A

    公开(公告)日：1979-06-26

    申请号：US844912

    申请日：1977-10-25

    申请人： Katsuichi Tachi

    发明人： Katsuichi Tachi

    IPC分类号： G11B27/024 ,  G11B27/30 ,  G11B27/32 ,  G11B27/34 ,  H04N7/088 ,  H04N5/76

    CPC分类号： H04N7/0881 ,  G11B27/024 ,  G11B27/3054 ,  G11B27/32 ,  G11B27/323 ,  G11B2220/90 ,  G11B27/34

    摘要： Method and apparatus for inserting an address signal in a video signal by compressing the time code signal including synchronizing bits inserted at every predetermined bit and cyclic redundancy check code and then inserting the compressed time code signal into at least one horizontal line period within a vertical blanking period of the video signal. The invention allows the time code signals to be reconstructed where the record medium is stopped or transported at very low speeds.

    摘要翻译： 通过压缩包括以每个预定位插入的同步位的时间码信号和循环冗余校验码，然后将压缩时间码信号插入垂直消隐中的至少一个水平行周期内，将视频信号中的地址信号插入视频信号中的方法和装置 视频信号的周期。 本发明允许以非常低的速度停止或传输记录介质的时间码信号。

    Phase locked loop circuit for eliminating impulses in output data which tend to produce malfunctions
    10.
    发明授权
    Phase locked loop circuit for eliminating impulses in output data which tend to produce malfunctions 失效
    用于消除倾向于产生故障的输出数据中的脉冲的锁相环电路

    公开(公告)号：US6097255A

    公开(公告)日：2000-08-01

    申请号：US018084

    申请日：1998-02-03

    申请人： Katsuichi Tachi

    发明人： Katsuichi Tachi

    IPC分类号： H03K5/26 ,  H03L7/085 ,  H03L7/089 ,  H03L7/08

    CPC分类号： H03L7/0891

    摘要： A phase-locked loop circuit adapted to follow up with the phase of an input signal includes a phase comparator 150 for phase-comparing, in synchronism with pre-set operating clocks, an input reference signal to an input signal entered as a counterpart for comparison. Since a first detector 154, a second detector 155 and JK-flip-flops 162, 163 output data responsive to pre-set operating clocks, there is produced no phase lag between NU data and ND data nor the phase lag between two tri-state logical outputs. In a conventional system, the phase lag between NU data and ND data was generated due to the differential delay of the input data caused by looped or the feedback components. Since the two input signals, namely the reference signal and the input signal, are phase-compared to each other in synchronism with the pre-set operating clocks, the comparison data obtained as a result of the phase comparison are outputted at a pre-set period thus reducing the malfunctions otherwise produced in the entire circuit.

    摘要翻译： 适于跟随输入信号的相位的锁相环电路包括相位比较器150，用于与预设的工作时钟同步地将输入参考信号输入到作为比较对象的输入信号 。 由于第一检测器154，第二检测器155和JK触发器162,163响应于预设的操作时钟输出数据，所以在NU数据和ND数据之间不产生相位滞后，也不产生两个三态之间的相位滞后 逻辑输出。 在常规系统中，由于循环或反馈分量引起的输入数据的差分延迟，产生了NU数据和ND数据之间的相位滞后。 由于两个输入信号（即参考信号和输入信号）与预置的工作时钟同步地彼此相位比较，所以作为相位比较的结果而获得的比较数据以预设的方式被输出 从而减少了整个电路中产生的故障。