JAMES M FERGUSON
Real Estate Commission in Levittown, PA
License number
Pennsylvania RS176814L
Category
Real Estate Commission
Type
Real Estate Salesperson-Standard
Address
Address
Levittown, PA 19054
Professional information
Video Disc Player Having Vertical Timing Signal Generator
US Patent:
4409626, Oct 11, 1983
Filed:
Oct 6, 1981
Appl. No.:
6/309193
Inventors:
James M. Ferguson - Levittown PA
Thomas Y. Chen - Brunswick NJ
Walter G. Gibson - Princeton NJ
Thomas Y. Chen - Brunswick NJ
Walter G. Gibson - Princeton NJ
Assignee:
RCA Corporation - New York NY
International Classification:
H04N 576, H04N 504
US Classification:
358338
Abstract:
A signal source continuously produces a horizontal timing signal proportional to the line rate of a recovered composite video signal. A vertical timing unit coupled to the source continuously produces a vertical timing signal proportional to the field rate of the video signal. An error detector processes data words present in the vertical interval of the composite video signal to provide a data status signal indicative of the validity of each processed data word. The data status signal is applied to the vertical timing unit for synchronizing the vertical timing signal with the vertical synchronizing component of the composite video signal and rendering the vertical timing signal substantially immune to noise which might accompany the composite video signal.