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1. 发明授权

US4286290A Fast recovery squelch circuit for a video disc player 失效
标题翻译：用于视频光盘播放器的快速恢复静噪电路
公开(公告)号：US4286290A
公开(公告)日：1981-08-25
申请号：US068015
申请日：1979-08-20
申请人： Gerald D. Pyles , James A. Wilber , Todd J. Christopher
发明人： Gerald D. Pyles , James A. Wilber , Todd J. Christopher
IPC分类号： G11B3/00 , G11B7/00 , G11B7/004 , G11B9/06 , G11B20/02 , G11B21/03 , G11B27/36 , H04B1/10 , H04N5/93 , H04N5/76
CPC分类号： H04N5/93 , G11B21/03 , G11B27/36 , G11B2220/20
摘要： A squelch circuit responsive to a squelch signal mutes audio and video circuits in a video disc player, preconditions a video signal correction servo system to the center of its control range and inhibits a defect correction circuit. A squelch memory, set by the simultaneous occurrence of the squelch signal and a loss of carrier signal derived from the output of the player pickup transducer, maintains the muting, preconditioning and inhibiting functions. When the squelch signal terminates the squelch memory is reset upon subsequent termination of the loss of carrier signal whereby the audio and video circuits are immediately unmuted, stabilization is rapidly established by the preconditioned video signal correction servo system and the defect correction circuit is primed.
摘要翻译：响应于静噪信号的静噪电路使视频盘播放机中的音频和视频电路静音，将视频信号校正伺服系统预先调节到其控制范围的中心，并且禁止缺陷校正电路。通过静噪信号的同时发生和从播放器拾取传感器的输出导出的载波信号的丢失设置的静噪存储器保持静音，预处理和禁止功能。当静噪信号终止时，随后终止载波信号的丢失，静音信号被重置，由此音频和视频电路立即取消静音，由预处理的视频信号校正伺服系统快速建立稳定性，并且引发缺陷校正电路。

2. 发明授权

US4239237A Turntable drive system for video disc player 失效
标题翻译：用于视频光盘播放器的转盘驱动系统
公开(公告)号：US4239237A
公开(公告)日：1980-12-16
申请号：US42919
申请日：1979-05-29
申请人： Gerald D. Pyles
发明人： Gerald D. Pyles
IPC分类号： G11B19/28 , G11B19/20 , H02K7/20 , H02K17/26
CPC分类号： G11B19/20 , H02K17/26 , H02K7/20
摘要： A turntable drive motor comprises a stator having a core defining an airgap for receiving a rotor, and a field winding for establishing an alternating magnetic flux of a given frequency therein. An elastic belt is disposed about a pully mounted on the rotor shaft and a flange secured to the turntable. A ring having a plurality of permanently magnetized poles of alternate polarity along its periphery is attached to the flange. A pair of elements are secured to the core for diverting a portion of the stator magnetic flux to a region adjacent to the ringed magnets. The relationship between the excitation frequency and the number of the permanently magnetized poles is such that deviations in the rate of rotation of the turntable for a desired rotational rate are opposed.
摘要翻译：转盘驱动电动机包括具有限定用于接收转子的气隙的铁心的定子和用于在其中建立给定频率的交变磁通的励磁绕组。弹性带设置在安装在转子轴上的脉冲和安装在转台上的凸缘上。具有沿其周边具有交替极性的多个永久磁化极的环连接到凸缘。一对元件被固定到芯部，用于将定子磁通的一部分转向与环形磁体相邻的区域。励磁频率和永久磁化极数之间的关系是这样的：转台的旋转速率在所需旋转速率下的偏差是相反的。

3. 发明授权

US4361883A Cartridge force and bias adjustment gage 失效
标题翻译：卡盘力和偏置调节量规
公开(公告)号：US4361883A
公开(公告)日：1982-11-30
申请号：US144293
申请日：1980-04-28
申请人： Byron K. Taylor , Gerald D. Pyles
发明人： Byron K. Taylor , Gerald D. Pyles
IPC分类号： G11B21/24 , H04N5/76 , G11B3/00 , G11B17/00
CPC分类号： G11B21/24
摘要： An apparatus for aiding in the final orientation of a video disc stylus assembly within the stylus cartridge. A fixture is arranged for receiving and securing cartridge assemblies in precise spatial relation to successive assemblies. A cantilever secured in fixed spatial relation to the cartridge has its free distal end arranged to engage the stylus assembly, which engagement produces deflections in the cantilever relative to the position of the stylus assembly with respect to the cartridge. Electro-mechanical transducers, coupled to the cantilever, measure and indicate minute deflections therein. The stylus position is then altered manually or by controlled mechanical means in accordance with the measured deflection in the cantilevers.
摘要翻译：一种用于帮助触针盒内的视频光盘笔组件的最终定向的装置。固定装置被布置成用于接收并确保与组件相连的精确空间关系的盒组件。以固定的空间关系固定到盒的悬臂具有其自由的远端，其布置成接合触针组件，该接合在悬臂中产生相对于针筒的触针组件的位置的偏转。耦合到悬臂的电 - 机械传感器测量并指示其中的微小偏转。然后根据测量的悬臂梁的偏差，手动地或通过受控的机械装置改变触针位置。

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