Edward Stuart Fox

US Patent:

41198123, Oct 10, 1978

Filed:

Apr 20, 1977

Appl. No.:

5/789294

Inventors:

Edward Coley Fox - Cranbury NJ

Assignee:

RCA Corporation - New York NY

International Classification:

H04B 1500

US Classification:

1791004D

Abstract:

Information processing system, for use with a source of carrier waves modulated with audio information, includes in respective audio channels a demodulator and for recovery of the audio information and track-and-hold amplifiers. Separate circuits are provided for detecting carrier drop-outs and impulse noise occurrences. The output of the detecting circuits is utilized to control the operation of the track-and-hold amplifiers to effect a masking of these occurrences. Signal de-emphasis is accomplished in each channel by means of two separate filters respectively arranged to operate on the input and output signal of the track-and-hold amplifier to minimize noise input to the track-and-hold amplifier.

US Patent:

42165024, Aug 5, 1980

Filed:

Aug 18, 1978

Appl. No.:

5/934834

Inventors:

Edward C. Fox - Cranbury NJ

Assignee:

RCA Corporation - New York NY

International Classification:

H04N 552

US Classification:

358176

Abstract:

A peak detector circuit is provided for detecting the maximum excursions of an amplitude varying signal. The circuit includes a network comprising a capacitor serially coupled to a charging impedance and having a time constant suitable for responding to the maximum excursions of the amplitude varying signal. A semiconductor means has an input terminal for receiving the amplitude varying signal and an output terminal coupled to the charging impedance for charging the capacitor toward the maximum excursions of the amplitude varying signal. The semiconductor means exhibits an impedance which is subject to increase with a decrease in current drawn therethrough. A controllable current sink is responsive to the amplitude varying signal at the input terminal of the semiconductor means and is coupled to the output terminal of the semiconductor means for drawing a component of current through the semiconductor means during the charging of the capacitor which is supplemental to the capacitor charging current drawn therethrough. The supplemental current component is of a sufficient magnitude to preclude increase of the impedance exhibited by the semiconductor means during the charging of the capacitor beyond a value which is substantially less than the charging impedance.

US Patent:

61813834, Jan 30, 2001

Filed:

May 28, 1997

Appl. No.:

8/864321

Inventors:

Edward C. Fox - Cranbury NJ
Paul Wallace Lyons - New Egypt NJ
Charles Wine - Princeton NJ

Assignee:

Sarnoff Corporation - Princeton NJ

International Classification:

H04N 9475

US Classification:

348515

Abstract:

A method and apparatus for preserving audio and video presentation synchronization during the splicing operation by selectively deleting, if necessary, an audio/video access unit to avoid overlapping of audio/video frames in the spliced output stream.

US Patent:

47491175, Jun 7, 1988

Filed:

Apr 1, 1986

Appl. No.:

6/846966

Inventors:

Renato R. Noe - Union City NJ
Edward A. Fox - Glen Mills PA

Assignee:

Public Service Electric and Gas Company - Newark NJ
ICI Americas, Inc. - Wilmington DE

International Classification:

B23K 2008

US Classification:

228107

Abstract:

An improved method for the explosive expansion and welding of tubes to tube sheet includes trepanning the rear face of the tube sheet to form integral collars around each tube-receiving bore in the tube sheet. The collars prevent accumulation of corrosive material in a gap between the tube and tube sheet bore, and provide support to the tube wall when the tube is explosively expanded beyond the region of the tube surrounded by the collar.