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16 条记录 (耗时 0.014 秒)

    Video disc player comprising clamping circuit for muse signal
    6.
    发明公开
    Video disc player comprising clamping circuit for muse signal 失效
    视频播放器电视机KlemmschaltungfürMUSE-Signale。

    公开(公告)号：EP0349990A2

    公开(公告)日：1990-01-10

    申请号：EP89112217.8

    申请日：1989-07-04

    申请人： SANYO ELECTRIC CO., LTD.

    发明人： Watanabe, Hiroshi ,  Hioki, Toshiaki ,  Morita, Yosihiko

    IPC分类号： H04N5/92

    CPC分类号： H04N9/87 ,  H04N9/797

    摘要： An FM-MUSE signal and a pilot signal are frequency-multiplexed, to be recorded on a video disc (D). In addition, a clamp level signal and an index signal are multiplexed on particular lines of a plurality of lines of the MUSE signal. The index signal is detected from the FM-MUSE signal reproduced from the video disc by a video disc player (100). Pulses of the reproduced pilot signal are counted, beginning at the time of this detection. Accordingly, the timing of generating the clamp level signal is specified, so that clamp pulses are generated. A clamping circuit (5) is provided in the video disc player, so that the clamp level signal is accurately clamped in response to the clamp pulse.

    摘要翻译： FM-MUSE信号和导频信号被频率复用，以被记录在视频盘（D）上。 此外，钳位电平信号和索引信号被复用在MUSE信号的多行的特定行上。 从视频盘播放器（100）从视频盘再现的FM-MUSE信号检测索引信号。 从该检测开始，再现导频信号的脉冲。 因此，指定产生钳位电平信号的定时，从而产生钳位脉冲。 钳位电路（5）设置在视频盘播放器中，使得钳位电平信号响应于钳位脉冲被精确地钳位。

    Motor controlling circuit of reproducing apparatus and method of controlling
    9.
    发明公开
    Motor controlling circuit of reproducing apparatus and method of controlling 失效
    显示装置和控制程序的马达控制电路。

    公开(公告)号：EP0057612A2

    公开(公告)日：1982-08-11

    申请号：EP82300531.9

    申请日：1982-02-02

    申请人： SANYO ELECTRIC CO., LTD.

    发明人： Hioki, Toshiaki

    IPC分类号： G11B19/24 ,  G11B19/28

    CPC分类号： G11B20/10527 ,  G11B19/28

    摘要： A reproducing apparatus comprises a motor (9) for driving a digital audio disc (1), in which digital data and a synchronising signal are recorded. The digital data is modulated in accordance with a predetermined digital modulatIng system such as an EFM modulating system, and is then recorded with the synchronising signal, which comprises signals which have a period substantially corresponding to the maximum period of the signals in the digital data, and which occur at a rate greater than that of the signals in the digital data having said maximum period. A signal is reproduced from the disc and the reproduced signal is subjected to FM demodulation and then a control signal is generated based on the FM demodulated signal. The generated control signal as well as a reference signal is applied to a phase comparator (7) of a phase locked loop (10), whereby the phased locked loop (10) controls the rotational speed of the motor (9).