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37 条记录 (耗时 0.016 秒)

    Stylus shift mechanism for a phonograph having two concentric records
    1.
    发明授权
    Stylus shift mechanism for a phonograph having two concentric records 失效
    具有两个同心记录的留声机的触笔移位机构

    公开(公告)号：US4076256A

    公开(公告)日：1978-02-28

    申请号：US705957

    申请日：1976-07-16

    申请人： Katsumi Watanabe

    发明人： Katsumi Watanabe

    IPC分类号： G11B3/08 ,  G11B3/04 ,  G11B3/80 ,  G11B19/20 ,  G11B3/34

    CPC分类号： G11B3/04 ,  G11B19/2009 ,  G11B3/80

    摘要： A toy phonograph of the type having an annular outer record, and an inner record arranged concentrically inwardly of the outer record for simultaneous rotation therewith, with the outer record having its grooved top surface disposed slightly higher than that of the inner record. For shifting a reproducing stylus from the outer to the inner record across a spacing therebetween during playback, a shift stylus is carried by a pickup arm at the rear of the reproducing stylus. Shorter than the reproducing stylus, the shift stylus is adapted to ride in a groove in the outer record to permit the reproducing stylus to be carried across the spacing between the records by the pickup arm. The reproducing stylus engages and starts following a groove in the inner record as the shift stylus leaves the outer record.

    摘要翻译： 具有环形外部记录的类型的玩具留声机，以及同心地向外设置在外部记录内部的内部记录，用于与外部记录同时旋转，外部记录具有设置成比内部记录略高的凹槽顶表面。 为了在再现期间将再现笔从外部记录跨过它们之间的间隔移动，换档触针由再现触笔后部的拾取臂承载。 与再现手写笔相比，换针式笔适合于骑在外部记录中的凹槽中，以允许再现触针跨越由拾取臂在记录之间的间隔。 再现触控笔在移位触针离开外部记录时，在内部记录中接合并开始跟随凹槽。

    Dynamic bonding of playback devices
    5.
    发明授权
    Dynamic bonding of playback devices 有权

    公开(公告)号：US12014115B2

    公开(公告)日：2024-06-18

    申请号：US17942818

    申请日：2022-09-12

    申请人： Sonos, Inc.

    发明人： Mark Triplett ,  Steven Beckhardt

    IPC分类号： G06F3/16 ,  G11B3/04 ,  H04R3/12 ,  H04R27/00 ,  G11B27/34 ,  H04R3/04

    CPC分类号： G06F3/165 ,  H04R3/12 ,  H04R27/00 ,  G11B27/34 ,  H04R3/04 ,  H04R2227/005 ,  H04R2420/01 ,  H04R2430/01

    摘要： A first playback device is configured to (i) receive an instruction to share a playback device between a first group of playback devices including the first playback device and a second group of playback devices including a second playback device, (ii) receive a command to play back media content, (iii) determine that the shared playback device is currently configured for synchronous playback in the second group of playback devices, (iv) transmit a request to the second playback device for an indication of whether the shared playback device is available, (v) if the shared playback device is available (a) transmit a command to the shared playback device to join the first group of playback devices, and (b) play back the media content in synchrony with the shared playback device, and (v) if the shared playback device is unavailable, play back the media content without synchronizing with the shared playback device.

    Disc reproducing system for compensating mechanical imperfections
    6.
    发明授权
    Disc reproducing system for compensating mechanical imperfections 失效
    用于补偿机械缺陷的光盘再现系统

    公开(公告)号：US4712208A

    公开(公告)日：1987-12-08

    申请号：US230423

    申请日：1981-02-02

    申请人： Ray M. Dolby

    发明人： Ray M. Dolby

    IPC分类号： G11B3/00 ,  G11B3/02 ,  G11B3/10 ,  G11B3/38 ,  G11B19/20 ,  G11B3/04

    CPC分类号： G11B3/38 ,  G11B19/2009 ,  G11B3/10

    摘要： Apparatus for reducing the effects of vertical perturbations of a phonograph disc surface resulting from disc and/or playback system mechanical imperfections. Such imperfections are compensated by closed loop and/or open loop means wherein the deviations of the record path are detected and employed to minimize the effects of the mechanical imperfections.

    摘要翻译： 用于减少由盘和/或播放系统机械缺陷导致的留声机盘表面的垂直扰动的影响的装置。 这种缺陷通过闭环和/或开环装置进行补偿，其中记录路径的偏差被检测并用于使机械缺陷的影响最小化。

    Memory system using phonograph-type disc
    7.
    发明授权
    Memory system using phonograph-type disc 失效
    使用PHONOGRAPH型盘的存储器系统

    公开(公告)号：US3662363A

    公开(公告)日：1972-05-09

    申请号：US3662363D

    申请日：1969-04-17

    申请人： EG & G INC

    发明人： CHERTOK ALLAN B

    IPC分类号： G11B3/00 ,  G11B3/04 ,  G11B3/095 ,  G11B3/36 ,  G11B17/00 ,  G11B3/06 ,  G11B3/78 ,  G11B13/02

    CPC分类号： G11B17/005 ,  G11B3/008 ,  G11B3/04 ,  G11B3/095 ,  G11B3/36

    摘要： A random access memory system for the storage of digital data in which digital signals are inscribed in a spiral groove on a phonograph record with the specific sequence of signals indicative of a radial location bearing a fixed relation to the radial location where each sequence is inscribed. The disk is supported on a rotating turntable and the digital signals are sensed by a stylus carried on an arm which can be positioned at an appropriate radial position on the disk. Address entry signals corresponding to the digital sequences in the groove are entered into the machine and control the positioning of the arm. An output signal is generated when the digital sequence read by the sensing means corresponds to the entered address. Additional digital information may be stored at specific radial positions identified by the digital addresses and this information is read out by a sensing device, only when the machine has found a match between the entered address and the digital sequence identifying the particular radial position.

    摘要翻译： 一种用于存储数字数据的随机存取存储器系统，其中数字信号被记录在留声机记录上的螺旋槽中，具有指示径向位置的特定信号序列，所述径向位置与每个序列被刻划的径向位置具有固定关系。 盘被支撑在旋转的转盘上，并且数字信号由携带在臂上的触针感测到，该手指可以位于盘上的适当的径向位置。 与凹槽中的数字序列相对应的地址输入信号被输入到机器中并控制臂的定位。 当由感测装置读取的数字序列对应于输入的地址时，产生输出信号。 附加数字信息可以存储在由数字地址识别的特定径向位置处，并且只有当机器已经找到输入的地址和识别特定径向位置的数字序列之间的匹配时，该信息才被感测装置读出。