Notifying device using alternating drive signals
    11.
    发明授权
    Notifying device using alternating drive signals 有权
    通知设备使用交替驱动信号

    公开(公告)号:US06255937B1

    公开(公告)日:2001-07-03

    申请号:US09446267

    申请日:1999-12-20

    CPC classification number: B06B1/0215 B06B2201/55 B06B2201/70 G10K9/12

    Abstract: A notifying device adapted to give notification with both sound and vibration includes a notifying unit 2 which comprises a first vibrator drivable at an audio-frequency with a first drive signal for producing sound waves, and a second vibrator drivable with a second drive signal at a frequency, up to several hundred of hertz, lower than the driving frequency of the first vibrator for producing a perceivable vibration. A notifying signal generating circuit 5 is connected to the unit 2 via a switch 59. The circuit 5 comprises a sound signal generating circuit 57 for producing an intermittent first signal repeating on and off states with a predetermined period, a vibration signal generating circuit 58 for producing an intermittent second signal repeating on and off states with the same period as the first drive signal, and a synchronization circuit 56 for causing the respective circuits 57, 58 to produce the first drive signal and the second drive signal without any overlap between the on periods of these signals. This construction obviates marked increases in the power consumption of the device.

    Abstract translation: 适于发出声音和振动通知的通知装置包括:通知单元2,其包括以音频驱动的第一振动器和用于产生声波的第一驱动信号;以及第二振动器,其具有第二驱动信号 频率高达几百赫兹,低于第一振动器的驱动频率以产生可感知的振动。 通知信号发生电路5经由开关59连接到单元2.电路5包括用于产生以预定周期重复开和关状态的间歇第一信号的声音信号发生电路57,用于 产生与第一驱动信号相同的周期的重复开启和关闭状态的间歇的第二信号;以及同步电路56,用于使各个电路57,58产生第一驱动信号和第二驱动信号, 这些信号的周期。 这种结构消除了设备功耗的显着增加。

    Video tape recorder carrying out field extraction recording and/or
reproduction of a video signal
    12.
    发明授权
    Video tape recorder carrying out field extraction recording and/or reproduction of a video signal 失效
    磁带录像机执行视频信号的场提取记录和/或再现

    公开(公告)号:US5594596A

    公开(公告)日:1997-01-14

    申请号:US458284

    申请日:1995-06-02

    Abstract: A time lapse VTR carrying out field extraction recording includes a gate for extracting intermittently a supplied video signal at a ratio of one field to every three fields, a switching circuit for designating selectively a tape running speed of either 1/9 or 1/12 the tape running speed of a SP mode in the VHS system, and a servo control circuit for driving a capstan motor to run a magnetic tape at the designated tape running speed. The video signal extracted intermittently by the gate circuit is recorded at an azimuth angle differing from each field by a plurality of video heads on a magnetic head running at the designated tape running speed. As a result, the reproduction compatibility of a magnetic tape having field extraction recorded by a time lapse VTR with an EP mode of a conventional VTR of the VHS system is ensured.

    Abstract translation: 进行场提取记录的时间延迟VTR包括:以一场与三场的比率间歇地提取所提供的视频信号的门,用于选择性地指定1/9或1/12的磁带运行速度的切换电路 VHS系统中SP模式的磁带运行速度,以及用于驱动主导轴电动机以指定磁带运行速度运行磁带的伺服控制电路。 由门电路间歇提取的视频信号以不同于场的方位角记录在以指定磁带运行速度运行的磁头上的多个视频磁头。 结果,确保具有通过时间流逝VTR记录的场提取的磁带与VHS系统的常规VTR的EP模式的再现兼容性。

    Disc player with simplified lifting and lowering mechanism
    13.
    发明授权
    Disc player with simplified lifting and lowering mechanism 失效
    光盘播放器具有简单的升降机构

    公开(公告)号:US5251195A

    公开(公告)日:1993-10-05

    申请号:US677542

    申请日:1991-03-29

    CPC classification number: G11B17/0565 G11B17/0288

    Abstract: A disc player having a tray drive mechanism, a disc clamp mechanism and a pickup assembly which are mounted on a fixed chassis. A spindle motor for drivingly rotating a turntable is coupled to a motor lift mechanism and drivable upward and downward relative to the chassis. The turntable is movable upward from a standby position below a tray in a loading completed position to a disc clamping completed position where the disc can be pressed into contact with a clamp of the disc clamp mechanism. A drive gear mechanism has a plurality of output portions coupled to the tray drive mechanism, the motor lift mechanism, and the pick-up assembly. The drive gear mechanism also has a power transmission change-over device for transmitting the power of a loading motor selectively to are of the clamps mechanism, the tray drive mechanism, and the pick-up assembly.

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