Gerald F Kaplan

US Patent:

39939952, Nov 23, 1976

Filed:

Dec 8, 1975

Appl. No.:

5/638847

Inventors:

Gerald Stanley Kaplan - Lawrenceville NJ
Alvin Seymour Clorfeine - Adelphi MD

Assignee:

RCA Corporation - New York NY

International Classification:

A61B 508
G01S 904

US Classification:

343 7ED

Abstract:

An apparatus for automatically monitoring the respiration of a subject requiring no physical connection to the subject. The use of such apparatus for automatically triggering an x-ray machine at instants of respiration extrema is also disclosed.

US Patent:

40030490, Jan 11, 1977

Filed:

Jul 3, 1975

Appl. No.:

5/593016

Inventors:

Fred Sterzer - Princeton NJ
Gerald Stanley Kaplan - Lawrenceville NJ

Assignee:

RCA Corporation - New York NY

International Classification:

G01S 956
G01S 946

US Classification:

343 6R

Abstract:

A frequency-modulated continuous-wave collision avoidance radar responsive to both reply signals from cooperating (tagged) targets and to skin reflections from proximate non-cooperating (non-tagged) targets.

US Patent:

39684920, Jul 6, 1976

Filed:

Dec 26, 1974

Appl. No.:

5/536558

Inventors:

Gerald Stanley Kaplan - Trenton NJ

Assignee:

RCA Corporation - New York NY

International Classification:

G01S 924

US Classification:

343 14

Abstract:

An adaptive parameter signal processor for continuous wave radar ranging systems which provides non-quantized measurements of range. Means are provided to select a suitable portion of the difference frequency wave form, excluding any phase reversal. The period of the difference frequency is measured using the selected portion of the waveform and is converted to frequency. The frequency is, in turn, converted to range. The system parameters are automatically adjusted in accordance with the difference frequency waveform.

US Patent:

41076800, Aug 15, 1978

Filed:

Nov 1, 1976

Appl. No.:

5/737777

Inventors:

Gerald Stanley Kaplan - Princeton NJ

Assignee:

RCA Corporation - New York NY

International Classification:

G01S 946
H01Q 132
H01Q 2100

US Classification:

343 8

Abstract:

A Doppler speed sensor for a ground vehicle wherein errors due to vehicle tilt relative to the ground surface and initial mounting angle error are substantially eliminated by using a first antenna with its radiation pattern directed down and forward and a second antenna with its radiation pattern directed down and rearward, so the principal axes of the radiation patterns are 90. degree. apart. A novel digital technique for processing the signals received from such antennas is also disclosed.

US Patent:

39848353, Oct 5, 1976

Filed:

May 12, 1975

Appl. No.:

5/576604

Inventors:

Gerald Stanley Kaplan - Trenton NJ
Andrew David Ritzie - Delran NJ

Assignee:

RCA Corporation - New York NY

International Classification:

G01S 956

US Classification:

343 65SS

Abstract:

A homodyne communication system comprising an interrogating unit and a plurality of responsive remote units wherein a continuous wave RF signal is transmitted from the interrogating unit to illuminate a remote unit. The remote unit causes a return (reply) signal to be transmitted or reflected back to the interrogating unit. A sample of the transmitted (interrogation) signal is mixed with the return signal. Amplitude nulls in the mixer output signal at given relative phase relationships between interrogation and reply signals, are substantially eliminated by selectively shifting the relative phase of the signals. Also disclosed are a homodyne communication system utilizing phase modulation to impress FSK signaling on the reply signal and an automatic vehicle location system utilizing the present invention.

US Patent:

40177190, Apr 12, 1977

Filed:

Dec 18, 1975

Appl. No.:

5/642111

Inventors:

Gerald Stanley Kaplan - Lawrenceville NJ
Andrew David Ritzie - Delran NJ

Assignee:

RCA Corporation - New York NY

International Classification:

G06F 739
H03K 500

US Classification:

2351503

Abstract:

Circuit and method for spacing the output signals from a binary rate multiplier by adjusting the rate of the internal clock of the binary rate multiplier to a value approximating (N+1) times f. sub. 0 where N represents the multiplier of the input frequency f. sub. The output signals thereby produced are substantially evenly spaced at a rate N times f. sub.

US Patent:

41092473, Aug 22, 1978

Filed:

Feb 16, 1977

Appl. No.:

5/769337

Inventors:

Gerald Stanley Kaplan - Lawrenceville NJ

Assignee:

RCA Corporation - New York NY

International Classification:

G01S 956
G01S 958

US Classification:

343 65R

Abstract:

A clutter immune radar where the interrogating unit transmits a modulated interrogation signal to a remote unit, which radiates an information-bearing reply signal, in order to enable the interrogating unit to obtain remote unit information and range by the use of three bandpass filter channels where one bandpass filter bandwidth is equal to the sum of the other two bandwidths.

US Patent:

45312087, Jul 23, 1985

Filed:

Feb 24, 1982

Appl. No.:

6/351999

Inventors:

Gerald S. Kaplan - Princeton NJ
Russell G. Setzer - Hazlet NJ

Assignee:

RCA Corporation - Princeton NJ

International Classification:

H04B 100
H04J 318

US Classification:

370 7

Abstract:

Conventional telephone systems including terminal equipments interconnected by a communications channel typically employ a supervisory tone transmitted by each terminal equipment to indicate its idle condition. Because the fraction of idle terminal equipments may be high, the total energy carried over the channel is substantially determined by these tones. The apparatus of the type disclosed herein, employed in association with each terminal equipment, effects a reduction in the channel power loading due to those tones. The apparatus includes circuits for detecting the presence of the idle state supervisory tone being transmitted from or received by the associated terminal. If the tone is present on either the transmit or received lead, the signal transmitted by the terminal into the channel is attenuated by a fixed power ratio and the signal received by the terminal from the channel is amplified by the same fixed power ratio.