Edward W Fox

US Patent:

6369857, Apr 9, 2002

Filed:

May 13, 1999

Appl. No.:

09/311252

Inventors:

Alvin Reuben Balaban - Lebanon NJ
Michael Louie Low - Kendall Park NJ
Edward Coley Fox - Cranbury NJ

Assignee:

Sarnoff Corporation - Princeton NJ

International Classification:

H04N 546

US Classification:

348555, 348558

Abstract:

A receiver requiring only a single IF SAW filter and IF amplifier receives signals in both analog format and in digital format, such as the NTSC, PAL and SECAM analog television signal formats and the ATSC and DVB digital television signal formats. IF signals from the IF amplifier are sub-sampled to digital signal form and are processed by respective analog format and digital format processors. Control circuitry responsive to the presence of certain unique components of the signals in analog format and digital format determine which of the analog format and digital format processors is producing valid data and selects the valid data to be utilized. In a television receiver, the unique components of the signals may include carrier signals, synchronization signals, pilot signals and symbol timing, and valid data is applied to a television display.

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.