公开(公告)号：US3879683A

公开(公告)日：1975-04-22

申请号：US36754273

申请日：1973-06-06

Applicant: RCA CORP

Inventor： BOSSELAERS ROBERT JAN

IPC: H03K4/48 ,  H03K3/282

CPC classification number: H03K4/48

Abstract: First and second like resistances are serially connected across a reactance element. Where the reactance element is a capacitor, a constant voltage is applied to first one terminal and then to the other terminal of the capacitor such that the capacitor discharges and charges first in one direction and then in the opposite direction through the respective resistances. When the reactance element is an inductance, a constant voltage is applied to the inductance and the two resistances in a manner to alternately reverse the direction of flow of current through the inductance. A sawtooth wave is produced when the waveforms appearing at each terminal of the reactance element are summed together.

Abstract translation: 第一个和第二个像电阻串联连接在电抗元件上。 在电抗元件是电容器的情况下，将恒定电压施加到第一个端子，然后施加到电容器的另一个端子，使得电容器通过相应的电阻器在一个方向上首先在相反的方向上放电并充电。 当电抗元件是电感时，以一定的方式将电压和两个电阻施加恒定电压，以便交替地反转通过电感的电流的流动方向。 当出现在电抗元件的每个端子处的波形相加在一起时，产生锯齿波。

公开(公告)号：US3879663A

公开(公告)日：1975-04-22

申请号：US40479973

申请日：1973-10-09

Applicant: RCA CORP

Inventor： MCGROGAN JR ELLWOOD PATRICK

IPC: H03M3/02 ,  H03K13/22

CPC classification number: H03M3/024

Abstract: A delta modulation system for encoding and decoding an analog input signal. The encoder includes a comparator to generate an encoded digital signal representing the analog input signal and a duty cycle circuit to represent the slope of the analog input signal. The decoder utilizes a similar duty cycle circuit which operates on the encoded digital signal received in order to translate the encoded signal into an analog output signal.

Abstract translation: 一种用于对模拟输入信号进行编码和解码的增量调制系统。 编码器包括比较器，用于产生表示模拟输入信号的编码数字信号和用于表示模拟输入信号的斜率的占空比电路。 解码器利用类似的占空比电路，该电路对所接收的编码数字信号进行操作，以将编码的信号转换为模拟输出信号。

公开(公告)号：US3878541A

公开(公告)日：1975-04-15

申请号：US47913774

申请日：1974-06-13

Applicant: RCA CORP

Inventor： DODSON III GEORGE BERTRAM

IPC: G01F23/24 ,  G08B21/00

CPC classification number: G01F23/247 ,  Y10T307/779

Abstract: Apparatus for sensing when the liquid in a tank falls below, or rises to, a predetermined level includes a plug mounted in the wall of the tank at the predetermined level. A reference semiconductor device is mounted in the plug with thermal coupling to the tank, and thus also to the liquid in the tank. A levelsensing semiconductor device and a series resistor are mounted in the plug with thermal coupling to the interior of the tank and to liquid when present at the predetermined level. A source of potential is connected to supply a current through a resistor to the reference semiconductor device, and to the level-sensing semiconductor and series resistor. A differential comparator has individual inputs connected across the respective semiconductor devices, and has an output connected to a level limit indicator such as a lamp or buzzer.

Abstract translation: 用于感测罐中的液体何时下降或上升到预定水平的装置包括安装在罐的壁中的预定水平的插头。 参考半导体器件安装在插头中，与热耦合到容器，从而也可以连接到罐中的液体。 液位检测半导体器件和串联电阻器安装在插头中，当存在于预定水平时，热连接到罐体的内部并且与液体连接。 电位源被连接以通过电阻器向参考半导体器件以及电平感测半导体和串联电阻器提供电流。 差分比较器具有连接在各个半导体器件上的各个输入，并且具有连接到诸如灯或蜂鸣器的电平限制指示器的输出。

公开(公告)号：US3878428A

公开(公告)日：1975-04-15

申请号：US31937572

申请日：1972-12-29

Applicant: RCA CORP

Inventor： KUZMINSKI HENRY WILLIAM ,  SOHN FRANK MYUNG-HI

IPC: H01J29/07 ,  H01J29/28 ,  H01J31/20 ,  H01J29/16

CPC classification number: H01J31/201 ,  H01J29/28

Abstract: Cathode-ray tube comprising an evacuated envelope including a viewing window and a viewing screen comprised of a mosaic of phosphor areas of different emission colors supported on the inner surface of the viewing window. Closely spaced from the screen is a shadow mask having two opposed major surfaces and an array of apertures therein registered with the phosphor areas of said screen. At least one of the major surfaces of the mask and the inner surface of said screen have surface means for effecting faster radiative heat transfer from the central portion of the mask than from peripheral portions of the mask.

Abstract translation: 阴极射线管包括包括观察窗的抽真空的外壳和由支撑在观察窗的内表面上的不同发射颜色的荧光粉区域的马赛克构成的观察屏幕。 与屏幕紧密隔开的是具有两个相对的主表面的荫罩，并且其中的孔阵列与所述屏幕的荧光体区域配准。 掩模的主要表面和所述屏幕的内表面中的至少一个具有表面装置，用于实现比掩模的周边部分更快地从掩模的中心部分的辐射热传递。

公开(公告)号：US3878335A

公开(公告)日：1975-04-15

申请号：US40769673

申请日：1973-10-18

Applicant: RCA CORP

Inventor： BALABAN ALVIN REUBEN

IPC: H04N5/04 ,  H04N5/06 ,  H04N5/12 ,  H04M5/06

CPC classification number: H04N5/12

Abstract: A digital vertical deflection rate synchronization system includes a source of clock pulses which drives a divide-by-525 counter and a serial-to-parallel shift register. An incoming low frequency signal such as that obtained from the sync separator stage of a television receiver is scanned at the clock rate to determine whether it exhibits the width characteristic of the vertical sync signal. If the incoming signal does not, the vertical deflection sawtooth generator is synchronized by a pulse derived from the divide-by-525 counter. If the incoming signal does exhibit the vertical sync pulse width characteristic, it is allowed to reset the divide-by-525 counter. In the event that the divide-by-525 counter is reset before it has passed a synchronizing pulse to the vertical deflection sawtooth generator, an overscan limit control circuit senses the collapsing vertical deflection yoke field and creates a vertical deflection synchronizing pulse.

Abstract translation: 数字垂直偏转率同步系统包括驱动525分频计数器和串并行移位寄存器的时钟脉冲源。 以时钟速率扫描诸如从电视接收机的同步分离级获得的输入低频信号，以确定其是否呈现垂直同步信号的宽度特性。 如果输入信号没有，则垂直偏转锯齿波发生器通过从525分频计数器得到的脉冲同步。 如果输入信号确实表现出垂直同步脉冲宽度特性，则允许将525分频计数器复位。 在525分频计数器在通过同步脉冲到垂直偏转锯齿波发生器之前被复位的情况下，过扫描极限控制电路检测到塌陷的垂直偏转磁轭场并产生垂直偏转同步脉冲。

公开(公告)号：US3878061A

公开(公告)日：1975-04-15

申请号：US44597074

申请日：1974-02-26

Applicant: RCA CORP

Inventor： FELDSTEIN NATHAN

IPC: C25D1/10 ,  C25D1/08 ,  H01J9/14 ,  H01J9/233 ,  H01L21/288 ,  H01L23/48 ,  H01L29/00 ,  C23B7/00 ,  B01K1/00

CPC classification number: H01L23/48 ,  C25D1/08 ,  H01J9/14 ,  H01L21/288 ,  H01L29/00 ,  H01L2924/0002 ,  H01L2924/00

Abstract: The matrix comprises a highly polished degenerately doped silicon single crystal substrate having a layer of an inorganic dielectric thereon and a pattern of grooves in the dielectric coating, exposing the silicon surface.

Abstract translation: 该基质包括具有无机介电层的高度抛光的简并掺杂的硅单晶衬底，以及介电涂层中的凹槽图案，暴露硅表面。

公开(公告)号：US3877981A

公开(公告)日：1975-04-15

申请号：US35572073

申请日：1973-04-30

Applicant: RCA CORP

Inventor： ARNOLD ANTHONY FRANCIS

IPC: C23C18/28 ,  C23C18/30 ,  H01L21/288 ,  B44D1/18

CPC classification number: C23C18/30 ,  H01L21/288

Abstract: A thin, discontinuous film of a catalyst is deposited on a surface to be plated. The surface is rinsed with a solution which includes a wetting agent for the surface, and is then electrolessly plated with a metal.

Abstract translation: 将催化剂薄的不连续薄膜沉积在待镀表面上。 表面用包括用于表面的润湿剂的溶液冲洗，然后用金属无电镀。

公开(公告)号：US3877810A

公开(公告)日：1975-04-15

申请号：US30459472

申请日：1972-11-08

Applicant: RCA CORP

Inventor： FELDSTEIN NATHAN

IPC: G03F1/54 ,  G03B27/02 ,  G03C5/00

CPC classification number: G03F1/54

Abstract: A photomask which comprises a transparent, smooth glass plate and a pattern of opaque, light-absorbing areas of oxides of cobalt on a surface of the plate is obtained by sequentially coating the glass plate with layers of cobalt and a photoresist, exposing the photoresist, developing the photoresist to expose areas of cobalt, etching away the exposed areas of cobalt, and heating the remaining areas of cobalt in the presence of oxgen to convert the same to cobalt oxides.

Abstract translation: 通过依次在玻璃板上涂覆钴和光致抗蚀剂层，曝光光致抗蚀剂，获得包含透明光滑玻璃板的光掩模和在该表面上的钴氧化物的不透明光吸收区域的图案， 显影光致抗蚀剂以暴露钴的区域，蚀刻钴的暴露区域，并在氧存在下加热钴的剩余区域以将其转化成钴氧化物。

公开(公告)号：US3876472A

公开(公告)日：1975-04-08

申请号：US46111174

申请日：1974-04-15

Applicant: RCA CORP

Inventor： POLINSKY MURRAY ARTHUR

IPC: H01L21/00 ,  H01L21/225 ,  H01L21/265 ,  H01L21/8238 ,  H01L27/092 ,  H01L29/78 ,  H01L7/54

CPC classification number: H01L21/8238 ,  H01L21/00 ,  H01L21/2253

Abstract: A method of achieving semiconductor substrates having similar surface resistivity comprises implanting ions into semiconductor substrates of very high resistivity and then, preferably, subjecting the substrates to a drive-in diffusion. This method can be utilized in the manufacture of CMOS integrated circuits to achieve transistors having closely matched threshold voltages.

公开(公告)号：US3875652A

公开(公告)日：1975-04-08

申请号：US38664273

申请日：1973-08-08

Applicant: RCA CORP

Inventor： ARNOLD ANTHONY FRANCIS ,  MILLER ANTHONY ZBIGNIEW

IPC: B23K20/10 ,  B23K35/00 ,  H05K3/32 ,  B23K21/00

CPC classification number: B23K35/007 ,  B23K20/10 ,  H05K3/328

Abstract: A wire of a soft metal, such as gold, silver, or copper, can be ultrasonically bonded to a base metal substrate by coating the wire with a thin layer of an alloy of nickel-phosphorus, coating the substrate with a relatively thicker layer of an alloy of cobalt-phosphorus, and applying ultrasonic vibratory energy between the coated wire and the coated substrate. A portion of the thin layer of the nickel-phosphorus is worn away during the application of the ultrasonic vibratory energy, and the wire is bonded directly to the relatively thicker layer of cobaltphosphorus.