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71. 发明授权

US3882419A Varactor tuned impatt diode microwave oscillator 失效
标题翻译：变容二极管调谐二极管微波振荡器
公开(公告)号：US3882419A
公开(公告)日：1975-05-06
申请号：US44722174
申请日：1974-03-01
申请人： RCA CORP
发明人： SWARTZ GEORGE ALLAN , WEN CHENG PAUL
IPC分类号： H03B9/14 , H03B7/14
CPC分类号： H03B9/141
摘要： A waveguide section having a moveable short-circuiting piston at one end contains two electrically coupled cavity resonators. A microwave generating element is disposed within one of the cavity resonators and a variable reactance element is disposed within the other cavity resonator. The frequency of the microwave output is controlled by varying the reactance of the variable reactance element.
摘要翻译：在一端具有可移动的短路活塞的波导部分包含两个电耦合腔谐振器。微波发生元件设置在空腔谐振器之一内，并且可变电抗元件设置在另一空腔谐振器内。通过改变可变电抗元件的电抗来控制微波输出的频率。

72. 发明授权

US3882041A Europium-activated alkaline-earth pyrophosphate phosphors 失效
标题翻译：铕活化碱土磷酸盐磷光体
公开(公告)号：US3882041A
公开(公告)日：1975-05-06
申请号：US40103073
申请日：1973-09-26
申请人： RCA CORP
发明人： ROYCE MARTIN ROBERT
IPC分类号： C09K11/77 , C09K1/36
CPC分类号： C09K11/7796
摘要： A phosphor consisting essentially of a pyrophosphate of at least one alkaline-earth element activated with divalent europium and containing, for each mole of phosphor, between 0.00001 and 0.00020 mole, of praseodymium. The phosphor may be used in a cathode-ray tube having a luminescent screen including this phosphor.
摘要翻译：基本上由至少一种用二价铕活化的碱土金属元素的焦磷酸盐组成的荧光体，对于每摩尔荧光体，含有0.00001至0.00020摩尔的镨。荧光体可以用于具有包含该荧光体的荧光屏的阴极射线管。

73. 发明授权

US3879582A Data loop communication system 失效
标题翻译：数据环通信系统
公开(公告)号：US3879582A
公开(公告)日：1975-04-22
申请号：US44726574
申请日：1974-03-01
申请人： RCA CORP
发明人： WHITE HUGH EDWARD , MAXEMCHUK NICHOLAS FRANK
IPC分类号： H04L12/437 , H04L25/02 , H04J3/08
CPC分类号： H04L12/437 , H04L25/0262
摘要： A loop digital data communications system in which a plurality of data processing units are connected in series with each other in the loop. Each data processor has a terminal device associated therewith for providing and receiving digital signals. The loop system also includes a loop controller connected in series in the loop with the data processors. The controller provides framed time division multiplexed channels for communication between terminal devices and a loop time delay to insure that each of the data processor transmits and receives signals in a selected channel over successive frames. The data processors are arranged to handle a plurality of synchronous data rates so that terminal devices at a plurality of data rates are serviced by the loop system. In addition, the data processors include a sampling technique so that asynchronous terminal devices may also be utilized with the system.
摘要翻译：一种循环数字数据通信系统，其中多个数据处理单元在循环中彼此串联连接。每个数据处理器具有与其相关联的终端设备，用于提供和接收数字信号。环路系统还包括一个与数据处理器在环路中串联连接的环路控制器。控制器提供用于终端设备之间通信的帧时分多路复用通道和循环时间延迟，以确保数据处理器中的每一个在连续的帧上以所选通道发送和接收信号。数据处理器被布置为处理多个同步数据速率，使得以多个数据速率的终端设备由循环系统服务。此外，数据处理器包括采样技术，使得异步终端设备也可以与系统一起使用。

74. 发明授权

US3878336A Digital synchronizing system 失效
标题翻译：数字同步系统
公开(公告)号：US3878336A
公开(公告)日：1975-04-15
申请号：US40770073
申请日：1973-10-18
申请人： RCA CORP
发明人： BALABAN ALVIN REUBEN
IPC分类号： H04N5/04 , H04N5/06 , H04N5/08 , H04N5/12 , H04M5/06
CPC分类号： H04N5/12
摘要： Frequency doubled television receiver horizontal deflection frequency signals are divided in a divide-by-525 counter to produce pulses at the vertical deflection rate. The five hundred twentieth pulse of each 525 pulse series is used to enable a bistable multivibrator which produces an enabling signal on an ''''and'''' gate. The five hundred twenty-fifth pulse of each 525 pulse series produces a resetting signal on an ''''or'''' gate. The fifth pulse of each 525 pulse series removes the enabling signal from the output terminal of the bistable multivibrator thereby inhibiting the and gate. The vertical sync pulse appearing between the five hundred twentieth pulse of each 525 pulse series and the fifth pulse of the next succeeding 525 pulse series passes through the enabled and gate and synchronizes the operation of the vertical deflection circuit. The vertical deflection sync pulse is also coupled to the or gate to reset the divide-by-525 counter and synchronize its operation to the incoming vertical sync.
摘要翻译：频率双倍的电视接收机水平偏转频率信号被划分为525分频计数器，以产生垂直偏转率的脉冲。每个525脉冲序列的第500个第50个脉冲用于使能在“和”门上产生使能信号的双稳态多谐振荡器。每个525脉冲序列的第五百五十五个脉冲在“或”门上产生复位信号。每个525脉冲序列的第五个脉冲从双稳态多谐振荡器的输出端去除使能信号，从而抑制和门极。每个525脉冲序列的第500个第50个脉冲之间出现的垂直同步脉冲和下一个后续的525脉冲序列的第五个脉冲通过使能和门并同步垂直偏转电路的操作。垂直偏转同步脉冲也耦合到或门以复位525分频计数器，并使其操作与进入的垂直同步同步。

75. 发明授权

US3877883A Method of growing single crystals of compounds 失效
标题翻译：生长化合物单晶的方法
公开(公告)号：US3877883A
公开(公告)日：1975-04-15
申请号：US37881873
申请日：1973-07-13
申请人： RCA CORP
发明人： BERKMAN SAMUEL , BRITT PHILIP MICHAEL
IPC分类号： C30B11/00 , B01J17/20
CPC分类号： C30B29/40 , C30B11/003
摘要： In growing a single crystal of a compound or an alloy composed of a plurality of compounds, having a volatile element, from a melt of the compound in a sealed ampoule, a quantity of the volatile element is provided to maintain an atmosphere of the volatile element over the melt and the temperature of the reservoir is slowly cycled around a given temperature, thereby cycling the vapor pressure of the volatile element of single crystal in the product.
摘要翻译：在由密封的安瓿中的化合物的熔体生长由具有挥发性元素的多种化合物组成的化合物或合金的单晶中，提供一定量的挥发性元素以维持挥发性元素的气氛在熔体之上，储存器的温度在给定温度下缓慢循环，从而循环产物中单晶挥发性元素的蒸气压。

76. 发明授权

US3876955A Biasing circuit for differential amplifier 失效
标题翻译：用于差分放大器的偏置电路
公开(公告)号：US3876955A
公开(公告)日：1975-04-08
申请号：US37947373
申请日：1973-07-16
申请人： RCA CORP
发明人： AHMED ADEL ABDEL AZIZ
IPC分类号： H03F3/45 , H03F3/68
CPC分类号： H03F3/45071
摘要： A circuit for establishing the quiescent bias current of a differential amplifier with active collector loads (transistor loads). The collector current of an auxiliary transistor, held at the same base-emitter potential as the active loads, is applied to the input circuit of a current amplifier which supplies from its output circuit the combined emitter currents of the differential amplifier transistors. The base currents of the auxiliary transistor and of the active load transistors are decoupled from the input circuit of the current amplifier so that variations in such currents do not affect the quiescent biasing of the differential amplifier.

77. 发明授权

US3875535A Enhanced efficiency diode circuit 失效
标题翻译：增强型二极管电路
公开(公告)号：US3875535A
公开(公告)日：1975-04-01
申请号：US36366873
申请日：1973-05-24
申请人： RCA CORP
发明人： CHANG KERN KO NAN
IPC分类号： H03B9/12 , H03C7/02 , H03C3/22 , H03B7/06
CPC分类号： H03C7/027 , H03B9/12
摘要： A varactor diode is combined with a microwave frequency diode in order to enhance the efficiency of the microwave diode. The varactor diode, which functions as a harmonic enhancer, greatly improves the efficiency of the microwave diode when the tuned diode circuit is used in place of the microwave diode to a TRAPATT oscillator.
摘要翻译：变容二极管与微波二极管组合，以提高微波二极管的效率。当调谐二极管电路用于代替微波二极管到TRAPATT振荡器时，用作谐波增强器的变容二极管极大地提高了微波二极管的效率。

78. 发明授权

US3873933A Circuit with adjustable gain current mirror amplifier 失效
标题翻译：电路带可调增益电流镜放大器
公开(公告)号：US3873933A
公开(公告)日：1975-03-25
申请号：US41416473
申请日：1973-11-08
申请人： RCA CORP
发明人： WHEATLEY JR CARL FRANKLIN
IPC分类号： H03G3/12 , G05F3/26 , H03F3/347 , H03F3/45 , H03F3/68
CPC分类号： H03F3/4508 , G05F3/265 , H03F3/347 , H03F3/45183 , H03F2203/45594 , H03F2203/45646 , H03F2203/45674 , H03F2203/45688
摘要： An adjustable-gain current mirror amplifier comprises the parallel connected fixed gain current mirror amplifier and an adjustable-gain current amplifier. No appreciable off-set potential in input voltage is required to accommodate trimming of the adjustable-gain current mirror amplifier gain.
摘要翻译：可调增益电流镜放大器包括并联的固定增益电流镜放大器和可调增益电流放大器。不需要输入电压的明显的偏置电位来适应微调可调增益电流镜放大器增益。

79. 发明授权

US3873879A In-line electron gun 失效
标题翻译：在线电子枪
公开(公告)号：US3873879A
公开(公告)日：1975-03-25
申请号：US34566573
申请日：1973-03-28
申请人： RCA CORP
发明人： HUGHES RICHARD HENRY
IPC分类号： H01J29/50 , H01J29/51
CPC分类号： H01J29/51 , H01J29/50 , H01J2229/581 , H01J2229/5835
摘要： The three co-planar beams of an in-line gun are converged near the screen of a cathode ray tube by means of two plate-like grids transverse to the beam paths and having corresponding apertures for the three beams. The three beam apertures of the first grid are aligned with the three beam paths. The two outer beam apertures of the second grid are offset outwardly relative to the beam paths to produce the desired convergence. The three sets of apertures also provide separate focusing fields for the three beams. The second plate-like grid is formed with a barrel shape, concave toward the first grid, to minimize elliptical distortion of beam spots on the screen due to crowding of the adjacent focusing fields. Each of the two outer beams is partially shielded from the magnetic flux of the deflecting yoke by means of a magnetic ring surrounding the beam path in the deflection zone, to equalize the size of the rasters scanned on the screen by the middle and outer beams. Other magnetic pieces are positioned on opposite sides of the path of the middle beam, to enhance one deflection field while reducing the transverse deflection field for that beam.
摘要翻译：直列式枪的三个共面光束通过横向于光束路径的两个板状栅格会聚在阴极射线管的屏幕附近，并且具有用于三个光束的对应的孔。第一格栅的三个光束孔径与三个光束路径对准。第二格栅的两个外光束孔径相对于光束路径向外偏移以产生期望的会聚。三组孔也为三个梁提供单独的聚焦场。第二板状栅格形成有朝向第一栅格凹陷的桶形状，以使由于相邻聚焦场的拥挤而使屏幕上的光斑的椭圆形失真最小化。两个外梁中的每一个通过围绕偏转区域中的光束路径的磁环而部分地屏蔽偏转磁轭的磁通量，以平衡通过中间和外侧光束在屏幕上扫描的光栅的尺寸。其他磁性片位于中间梁的路径的相对侧上，以增强一个偏转场，同时减小该横梁的横向偏转场。

80. 发明授权

US3873867A Support and focus structure for photomultiplier 失效
标题翻译：光电倍增管的支撑和聚焦结构
公开(公告)号：US3873867A
公开(公告)日：1975-03-25
申请号：US43665474
申请日：1974-01-25
申请人： RCA CORP
发明人： GIRVIN HAROLD HAYES
IPC分类号： H01J43/06 , H01J43/04 , H01J39/02 , H01J39/14
CPC分类号： H01J43/04
摘要： A mounting means is provided for substantially electrically isolating an electrode assembly of a photomultiplier from the inner surface wall of a glass envelope. The electrode assembly also includes an electrode focussing means for substantially preventing divergent electrons from impinging on electrode support spacers. The combination substantially eliminates the operational electrical instability known as hysteresis.
摘要翻译：提供了一种安装装置，用于将光电倍增器的电极组件与玻璃封套的内表面壁基本上电隔离。电极组件还包括用于基本上防止发散电子撞击在电极支撑间隔物上的电极聚焦装置。该组合基本上消除了称为滞后的操作电气不稳定性。

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