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:
May. 15, 1990
Filed:
May. 01, 1989
U.S. Philips Corporation, New York, NY (US);
Abstract
In order that one clock signal generator in a digital video signal processing circuit comprising a line-coupled clock signal generator and using, for example one or more field memories is sufficient for writing and reading these memories and can still process a signal from a video recorder, the control loop of the clock signal generator uses a comb filter circuit which rapidly corrects regular variations in an output signal of a phase detector of the control loop, which variations are caused by the head drum of the video recorder, without having to adapt the proportioning of a conventional loop filter circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile