John Kawai Yu

US Patent:

42426553, Dec 30, 1980

Filed:

Dec 15, 1978

Appl. No.:

5/969781

Inventors:

David J. Carlson - Indianapolis IN
John P. Yu - Indianapolis IN

Assignee:

RCA Corporation - New York NY

International Classification:

H01R 1710

US Classification:

333183

Abstract:

A coaxial RF connector adapted for mounting on a wall of a utilization device, such as a video disc player, employs a capacitor for providing DC and low frequency blocking between the wall of the device and the outer conductor of the connector. The capacitor is formed in the shape of a washer to provide a uniformly distributed capacitance around the outer conductor.

US Patent:

42297141, Oct 21, 1980

Filed:

Dec 15, 1978

Appl. No.:

5/969780

Inventors:

John P. Yu - Indianapolis IN

Assignee:

RCA Corporation - New York NY

International Classification:

H03H 704
H03H 714
H04B 328

US Classification:

333 12

Abstract:

An RF coaxial connector assembly, having an inner and outer conductor, employs a washer-like capacitor fitted over the outer conductor for low frequency isolation and employs a transformer adapted for connection between a source of RF signals and the inner and outer conductors of the assembly for reducing the RF currents on the outer conductor. Reduction of the RF currents on the outer conductor is effective to reduce the radiation of RF energy from a coaxial cable coupling the connector assembly to the load.

US Patent:

40978990, Jun 27, 1978

Filed:

Dec 6, 1976

Appl. No.:

5/747866

Inventors:

John Pang Yu - Indianapolis IN

Assignee:

RCA Corporation - New York NY

International Classification:

H04N 522
H04N 700
H04N 578
H04N 544

US Classification:

358181

Abstract:

Video record player has RF output terminal linked to antenna terminals of a television receiver, and an RF input terminal coupled to antenna lead-in. Player's processing circuits provide respective sound signal and composite video signal outputs during record playback. First oscillator, operating at intercarrier sound frequency (e. g. , 4. 5 MHz), is subject to frequency modulation by player's sound signal output (when present). Sum of oscillator output and player's composite video signal output (when present) forms modulating signal for an amplitude modulator, which receives carrier waves from second oscillator, operating at selected broadcast picture carrier frequency. A first diode is coupled between modulator output terminal and player's RF output terminal, while second diode is coupled between player's RF input terminal and reference potential point. Normally closed relay provides a conductive path between player's RF input and output terminals when closed. Forward biasing voltages for diodes, and energizing potential for relay's control winding (as well as operating potentials for oscillators) are provided by player's power supply when player is switched on, so that carrier waves from player are supplied to receiver while antenna lead-in is isolated.

Author:

John W. Yu

ISBN #:

0471304336

Author:

John W. Yu

ISBN #:

0471548731

Author:

John W. Yu

ISBN #:

0471571555

Author:

John Yu

ISBN #:

0471514004