公开(公告)号：US3870835A

公开(公告)日：1975-03-11

申请号：US35160073

申请日：1973-04-16

Applicant: RCA CORP

Inventor： STAVE FREDRICK ROLAND

IPC: G11B3/02 ,  G11B3/06 ,  G11B3/085 ,  G11B3/095 ,  G11B3/36 ,  G11B3/46 ,  G11B9/00 ,  G11B33/10 ,  G11B17/06 ,  G11B3/00

CPC classification number: G11B33/10 ,  G11B3/06 ,  G11B3/0952 ,  G11B3/36 ,  G11B3/46 ,  G11B9/00

Abstract: A playback system has a rotatably driven turntable for controlling the operation of a playback stylus device with a video disc record disposed on the turntable. The video information, which is recorded in the form of geometric variations in a spiral groove of the record, is recovered by sensing the capacitance between the stylus playback device and the record surface. The stylus is supported in a housing which is movable in a manner to provide travel of the stylus radially over the record. A stylus control device provides movement of the stylus relative to the housing into and out of engagement with the record surface. Two drive arrangements are provided to be operable in alternative manner to drive the stylus housing over the record. A movable pointer is provided to indicate the position of the stylus along the record. Each of first and second drive means have motion coupling devices, which are controllably engageable in alternative manner to a driving shaft of the turntable. A movable drive change assembly is intercoupled with the respective drive arrangements and the stylus control apparatus, to selectively energize the drive and stylus control apparatuses. The system includes a manual selector arm for positioning a portion of control mechanism, which is instrumental in establishing drive control of the stylus housing and positioning of the stylus. The selector positions one of a pair of electrical contacts in a given initial spaced relation. The second electrical contact is positioned by a portion of the drive means to cause the contacts to engage at a desired position of the stylus over the record. An electrical circuit completed thereby is operative through electro-mechanical means to control the drive and positioning of the stylus with respect to the record. A manually actuatable lever arrangement is coupled to the drive and stylus control mechanism. This mechanism when actuated is operative to disengage drive of the stylus housing over the record and remove the stylus from the record, while maintaining the position of the stylus with respect to the center of the record.

Abstract translation: 回放系统具有旋转驱动的转盘，用于控制具有设置在转盘上的视盘记录的重放触针装置的操作。 通过感测触控笔播放装置和记录表面之间的电容来恢复记录在记录的螺旋槽中的几何变化形式的视频信息。 触针支撑在壳体中，壳体可以以提供触针的径向在记录上的行进的方式移动。 触针控制装置提供触针相对于外壳的移动，进入和离开与记录表面的接合。 提供两个驱动装置以可替代的方式操作以在记录上驱动触针外壳。 提供可移动指针以指示触笔沿记录的位置。 第一驱动装置和第二驱动装置中的每一个具有运动联接装置，其以与转盘的驱动轴可替代的方式可控制地接合。 可移动的驱动器更换组件与相应的驱动装置和触针控制装置相互配合，以选择性地激励驱动器和触笔控制装置。

公开(公告)号：US3867685A

公开(公告)日：1975-02-18

申请号：US36583373

申请日：1973-06-01

Applicant: RCA CORP

Inventor： AHMED ADEL ABDEL AZIZ

IPC: G05F3/26 ,  G05F3/22 ,  H03F3/45 ,  G05F3/08

CPC classification number: G05F3/22 ,  H03F3/45479

Abstract: A relatively small value of current is obtained in an integrated circuit by separating a larger current into two or more parts. The circuit includes two transistors and at least two strings of the same number of series connected diodes. Currents in a fixed ratio to one another are applied in the forward direction to the two strings of diodes and the voltages thereby obtained are applied to the respective base electrodes of the transistors. The larger current is applied in parallel to the emitter-to-collector paths of the two transistors and that part of this current which passes through the one of the transistors drawing the smaller of the two currents, is the current of interest.

Abstract translation: 通过将较大的电流分离成两个或更多个部分，在集成电路中获得相对较小的电流值。 该电路包括两个晶体管和至少两个相同数量的串联二极管的串。 在两个二极管串之间以正向方向施加彼此固定的电流，并且将由此获得的电压施加到晶体管的各个基极。 较大的电流并联施加到两个晶体管的发射极到集电极路径，并且通过吸引两个电流中较小的晶体管的一个晶体管的该电流的部分是感兴趣的电流。

公开(公告)号：US3867108A

公开(公告)日：1975-02-18

申请号：US42078173

申请日：1973-12-03

Applicant: RCA CORP

Inventor： ALPHONSE GERARD ARGANT ,  BODEEP GEORGE EDWARD

IPC: G02F1/33 ,  H01L41/22 ,  B32B15/04 ,  H03H7/30

CPC classification number: H01L41/29 ,  G02F1/33 ,  Y10S428/926 ,  Y10T403/35 ,  Y10T428/12472 ,  Y10T428/1259 ,  Y10T428/12681 ,  Y10T428/12889 ,  Y10T428/12986

Abstract: Acousto-optic devices comprising a transducer bonded to an acousto-optic medium having improved bonds are made by a process whereby the surfaces to be joined are first roughened, a primer metal layer is coated onto the acousto-optic medium, which primer metal is the metal which is chemically bonded to oxygen in the acousto-optic medium, the primer layer is cooled, a layer of a conductive metal and a layer of indium are deposited onto both surfaces to be bonded and the indium layers pressed together in a vacuum.

Abstract translation: 声光器件包括与具有改进的接合的声光介质结合的传感器，通过一种方法制备，其中将被接合的表面首先粗糙化，将引物金属层涂覆到声光介质上，该底漆金属是 化学键合在声光介质中的氧的金属，底漆层被冷却，导电金属层和铟层沉积在要粘合的两个表面上，并且铟层在真空中压在一起。

公开(公告)号：US3867012A

公开(公告)日：1975-02-18

申请号：US46476374

申请日：1974-04-29

Applicant: RCA CORP

Inventor： PHILLIPS WILLIAM

IPC: C30B19/00 ,  B44D1/16 ,  G02B5/14

CPC classification number: C30B19/00

Abstract: A film of a single crystal lithium niobate film on a platinum coated lithium tantalate crystal can be prepared by depositing a thin layer of platinum on a polished lithium tantalate crystal surface, depositing a layer of finely divided lithium niobate on the platinum and fusing the lithium niobate. Such films are useful in optical waveguide electro-optic modulators and acoustic surface wave devices.

Abstract translation: 在铂包覆的钽酸锂晶体上的单晶铌酸锂薄膜可以通过在抛光的钽酸锂晶体表面上沉积一层铂，在铂上沉积一层精细分散的铌酸锂并将铌酸锂熔合 。 这种膜在光波导电光调制器和声表面波装置中是有用的。

公开(公告)号：US3866149A

公开(公告)日：1975-02-11

申请号：US42231373

申请日：1973-12-06

Applicant: RCA CORP

Inventor： JUNG GEORGE CHRISTIAN

IPC: H01P1/39 ,  H01P1/32

CPC classification number: H01P1/39

Abstract: A four-port waveguide circulator includes a pair of rectangular waveguides which extend perpendicular to each other to form a junction having a pair of parallel boundary walls. A post of gyromagnetic material of a first diameter extends from one wall and a post of conductive material of a diameter greater than the first diameter extends from the other wall so as to contact the post of gyromagnetic material. The dimensions of the post of gyromagnetic material and of the post of conductive material are determined, with the strength of a magnetic field directed axially of the gyromagnetic post being selected, to produce a circulator action.

Abstract translation: 四端口波导环行器包括一对彼此垂直延伸的矩形波导，以形成具有一对平行边界壁的连接点。 第一直径的回旋磁性材料的柱从一个壁延伸，并且直径大于第一直径的导电材料的柱从另一个壁延伸以便接触回转磁性材料的柱。 确定回旋磁性材料柱和导电材料柱的尺寸，其中选择轴向的磁场的强度，以产生循环器动作。

公开(公告)号：US3866025A

公开(公告)日：1975-02-11

申请号：US34177573

申请日：1973-03-15

Applicant: RCA CORP

Inventor： CAVANAGH JOHN DENIS

IPC: B64G1/26 ,  G05D1/10

CPC classification number: B64G1/26

Abstract: A system wherein orbit-adjust thrusters of a Pitch Momentum Bias spacecraft are used to perform both orbital inclination adjustment and roll and/or yaw attitude control. A strapdown inertial reference system comprising two rate gyros is operated in conjunction with an on-board computer to derive the shortest angle through which the total angular momentum vector of the spacecraft must be rotated to bring it into alignment with the orbit normal vector and the ideal torque to produce this rotation of the total angular momentum vector. The computer is then operated to select a combination of orbit adjust thrusters which produce a torque which best approximates the ideal torque and to control their firing to achieve the alignment of the total angular momentum vector with the orbit normal vector. Thereafter, the computer is operated to select the combination of orbit adjust thrusters which produce a torque to reduce the roll and/or yaw angular attitude error rates of the spacecraft. In one operation, both orbit inclination adjustment and attitude control are performed simultaneously.

Abstract translation: 使用俯仰动量偏移航天器的轨道调整推进器进行轨道倾斜调节和侧倾和/或偏航姿态控制的系统。 包括两个速率陀螺仪的​​捷联惯性参考系统与车载计算机一起运行以得出最短角度，通过该最短角度，航天器的总角动量向量必须旋转以使其与轨道法向量和理想 扭矩产生总角动量矢量的这种旋转。 然后操作计算机以选择轨道调整推进器的组合，其产生最接近理想转矩的扭矩并且控制其点火以实现总角动量向量与轨道法线向量的对准。 此后，操作计算机以选择产生扭矩的轨道调整推进器的组合，以减小航天器的滚动和/或偏航角姿态误差率。 在一个操作中，同时执行轨道倾斜调节和姿态控制。

公开(公告)号：US3863215A

公开(公告)日：1975-01-28

申请号：US37622273

申请日：1973-07-03

Applicant: RCA CORP

Inventor： MCGROGAN JR ELLWOOD PATRICK

IPC: H04L1/08 ,  G06F11/08 ,  G08C25/00

CPC classification number: H04L1/08

Abstract: A detector for repetitive cyclically permutable digital codes. The detector utilizes two shift registers, serially connected to provide two delayed versions of a repetitive code. A majority vote circuit responsive to the undelayed code and two delayed codes is used for forward error reduction. A run length counter responsive to the majority vote signal increments a count each time corresponding bits from the majority signal and a delayed version thereof agree. At a specified count, the code is read out with a high probability of accuracy.

Abstract translation: 用于重复循环置换数字码的检测器。 该检测器使用两个移位寄存器，串行连接以提供两个延迟版本的重复代码。 响应于未延迟代码和两个延迟代码的多数投票电路用于前向错误减少。 响应于多数投票信号的游程长度计数器每当来自多数信号的相应位和其延迟版本一致时增加计数。 在指定的计数下，以高精度的概率读出代码。

公开(公告)号：US3862361A

公开(公告)日：1975-01-21

申请号：US42967373

申请日：1973-12-28

Applicant: RCA CORP

Inventor： GEORGE JOHN BARRETT

IPC: H04N5/14 ,  H04N5/213 ,  H04N5/455 ,  H04N5/44

CPC classification number: H04N5/455

Abstract: Synchronous video detection in a television receiver provides increased detection linearity and better signal-to-noise ratio for weak signals than does envelope video detection. Impulse noise, which produces generally unobtrusive black-going noise components in a picture reproduced in response to a video signal recovered by envelope detection from a negatively modulated carrier also produces obtrusive white-going noise components in a picture reproduced in a response to a video signal recovered by synchronous detection. Common signal processing means, responsive to the envelope of the video signal modulated intermediate frequency carrier, inverts the white-going noise impulses to produce black-going components so that substantially all noise impulses appear black-going in the recovered signal.

Abstract translation: 电视接收机中的同步视频检测对于弱信号而言，比包络视频检测提供更高的检测线性度和更好的信噪比。 脉冲噪声在响应于从负调制载波的包络检测恢复的视频信号再现的图像中产生通常不引人注意的黑噪声分量，还在对视频信号的响应中再现的图像中产生突出的白噪声分量 通过同步检测恢复。 公共信号处理装置响应于视频信号调制的中频载波的包络，将白噪声的脉冲反相以产生黑色分量，使得基本上所有的噪声脉冲在恢复的信号中显现为黑色。

公开(公告)号：US3860859A

公开(公告)日：1975-01-14

申请号：US27463872

申请日：1972-07-24

Applicant: RCA CORP

Inventor： BUCKLEY BRUCE HARRY

IPC: H02P23/00 ,  G05D3/00 ,  G05D3/12 ,  G05D3/14 ,  H04Q9/14

CPC classification number: G05D3/1481 ,  G05D3/127

Abstract: A remotely controlled shaft rotator is described wherein a local indicator-control device is driven by a regulated local reversible motor. The local motor is initially responsive to a pulse derived at the remote drive unit for driving the indicatorcontrol device a given amount as controlled by a cam operated switch.

Abstract translation: 描述了一种远程控制的轴旋转器，其中局部指示器控制装置由限制的局部可逆电动机驱动。 本地电动机最初响应于在远程驱动单元处产生的脉冲，用于通过由凸轮操作的开关控制的给定量来驱动指示器控制装置。

公开(公告)号：US3858036A

公开(公告)日：1974-12-31

申请号：US44596774

申请日：1974-02-26

Applicant: RCA CORP

Inventor： LUNSFORD J

IPC: G06F7/552 ,  G06F7/48 ,  G06G7/20

CPC classification number: G06F7/552 ,  G06F2207/5525

Abstract: Circuit for approximating the value of square root (I2 + Q2) using max(I + Q/2, Q + I/2).

Abstract translation: 使用max（I + Q / 2，Q + I / 2）近似2ROOT（I2 + Q2）的电路的电路。