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:
Jul. 25, 1989
Filed:
Apr. 07, 1988
Uwe E Kraus, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
Picture display device including a field number conversion circuit provided with a synchronizing signal conversion circuit (4) in which the number of half-lines in a field of a television signal to be converted is counted by means of a counter (57). This number is passed on to a further counter (41) which counts at a rate which is different from that of the first-mentioned counter. The ratio between the counting rates of the counters is assumed to be equal to the ratio between the field numbers of a converted television signal and the television signal to be converted. Also in the case of possible deviations of the television signal to be converted from a standard signal, the further counter (41) places vertical synchronizing signals (V2) at the correct locations in the converted television signal.