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:
Nov. 02, 1999
Filed:
Sep. 03, 1997
Eric Cirot, Fontaine, FR;
Nicolas LeBouleux, Grenoble, FR;
SGS-Thomson Microelectronics S.A., Saint Genis, FR;
Abstract
The present invention relates to a circuit for processing vertical synchronization logic signals of positive or negative polarity. Based on signals locating, on the one hand, the presence of the beginning of a pulse and, on the other hand, the rising and falling edges in the synchronization signals, a brief pulse is provided in a signal generated by a one-shot. This pulse induces the generation of edges in signals controlling a latch which generates a logic detection signal. According to the polarity of the received signals, the latch is set or reset and the state of the detection signal indicates the polarity of the synchronization signals.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile