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:
Aug. 04, 1987
Filed:
May. 03, 1985
Frits A Steenhof, Eindhoven, NL;
Petrus W Welles, Eindhoven, NL;
Petrus A Nuijten, Bergen op Zoom, NL;
Jan van der Meer, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
In a television signal memory write circuit which is synchronized by horizontal and vertical synchronizing signal patterns obtained from the television signal to be entered, the mutual positions of these patterns being measured with the aid of a measuring circuit; and depending on this measurement, the vertical synchronizing signal pattern is delayed by a variable delay circuit such that in practice the patterns are prevented from coinciding, thereby preventing a change in the position of a predetermined line number in the television signal memory circuit. This renders the circuit less sensitive to interference.