The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 1991
Filed:
Dec. 28, 1988
Applicant:
Inventor:
Steven D Wagner, Belmont, CA (US);
Assignee:
Ampex Corporation, Redwood City, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358 19 ; 358320 ; 358326 ;
Abstract
At the input to a video signal time base corrector, the phase error is sampled during each burst interval and is used to control the operation of an analog-to-digital convertor to compensate for phase errors at the start of each line. Progressive phase errors are predicted during each line and compensated. Any residual phase error at the start of a line is detected and applied to a phase error compensator for eliminating the residual phase error. The residual phase error and the video signal are processed through separate signal paths, and the frequency and phase characteristics of the residual phase error path are adjusted to those of the video signal path.