Richard A Pryor

US Patent:

40299716, Jun 14, 1977

Filed:

Feb 13, 1976

Appl. No.:

5/657838

Inventors:

Richard Lee Pryor - Voorhees NJ

Assignee:

RCA Corporation - New York NY

International Classification:

H03K 100
H03K 1908

US Classification:

307209

Abstract:

A line driver including a pair of complementary transistors having their conduction paths serially connected between an operating and a reference potential and their bases connected through a first switch to a signal input terminal. A second switch is connected between the common base connection and the common connection of the conduction paths. With the second switch open and the first closed, an output voltage, responsive to the input signal, corresponding to first or second binary values is obtained. When the second switch is closed and the first opened, the transistor pair is turned off, disconnecting the line driver from its load, thereby providing tri-state logic operation.

US Patent:

42849586, Aug 18, 1981

Filed:

Nov 13, 1979

Appl. No.:

6/093233

Inventors:

Richard L. Pryor - Voorhees NJ
William F. Heagerty - Norristown PA

Assignee:

RCA Corporation - New York NY

International Classification:

H03F 345
H03F 316

US Classification:

330253

Abstract:

A folded-cascode amplifier arrangement includes first and second transistors of complementary conductivity type and a constant current generator for supplying quiescent current thereto. Signal current flowing in the first transistor is coupled to the second transistor through current steering at the interconnection between their main conduction paths. Signal current flowing in the first transistor is further coupled to the input circuit of a current mirror amplifier (CMA), the output current of which is proportional to the signal current and is coupled to the main conduction path of the second transistor. The output current of the CMA is poled for reinforcing the current flow of the second transistor so that the output current available from the folded-cascode configuration is substantially greater than the signal current in the first transistor. The amplifier voltage-gain transfer function exhibits a frequency response dominated by a single pole.

US Patent:

44082452, Oct 4, 1983

Filed:

Dec 28, 1981

Appl. No.:

6/334819

Inventors:

Richard L. Pryor - Voorhees NJ

Assignee:

RCA Corporation - New York NY

International Classification:

H02H 904

US Classification:

361 56

Abstract:

A first IGFET functioning as a pull-up or pull-down transistor is formed in parallel with one of a pair of gated diodes. The first IGFET-diode combination is connected to the gate electrode of a second IGFET to which is connected an external (off chip) signal source. In one mode of operation, the first IGFET is turned-on in response to a control signal and operates as a current path to prevent the gate of the second IGFET from floating in the event of an open circuit. In a second mode of operation, the second IGFET is turned-off in response to a control signal. The diode portion of the combination operates to protect the gate electrode of the second IGFET from any over voltage.

US Patent:

39913805, Nov 9, 1976

Filed:

Feb 9, 1976

Appl. No.:

5/656296

Inventors:

Richard Lee Pryor - Voorhees NJ

Assignee:

RCA Corporation - New York NY

International Classification:

H03F 318

US Classification:

330 13

Abstract:

A feedback circuit responsive to the output signals of two amplifiers provides feedback in a sense to amplify differential mode components and reject common mode components of input signals supplied to the amplifiers, the resultant common mode rejection ratio (CMRR) being substantially independent of the magnitude of the common mode voltage. A further feedback circuit provides feedback of a sense to increase the CMRR when the magnitude of the common mode voltage differs in either sense from a given value whereby the net CMRR increases from a minimum value as the common mode voltage varies in either sense from the given value.

US Patent:

46126180, Sep 16, 1986

Filed:

Jun 10, 1983

Appl. No.:

6/503042

Inventors:

Richard L. Pryor - Voorhees NJ
William M. Cowhig - Philadelphia PA

Assignee:

RCA Corporation - Princeton NJ

International Classification:

G06F 15606

US Classification:

364490

Abstract:

High gate count integrated circuits (ICs) are designed in a heirarchical manner. In a first pass through a computer design system basic cells are composed to form one-level-up building block cells. In a second pass through the same computer design system the one-level-up building block cells are used as "basic" cells and composed to form a two-level-up structure which may be a building block cell or a chip.

US Patent:

39449360, Mar 16, 1976

Filed:

Aug 7, 1974

Appl. No.:

5/495425

Inventors:

Richard Lee Pryor - Voorhees NJ

Assignee:

RCA Corporation - New York NY

International Classification:

H03K 1716

US Classification:

328150

Abstract:

The bipolar signals produced, for example, by a magnetic transducer which senses the positions of slots in a ferromagnetic damper wheel, are integrated. The resulting integrated signal has peaks at times corresponding to the zero crossings of the bipolar signals and is of lower, relatively constant, amplitude at other times. The peaks may be used to prime an otherwise disabled circuit in the path through which signals indicative of zero crossings are transmitted to thereby discriminate between zero crossings of interest (those of the bipolar signals) and those due to noise.