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. 10, 1998
Filed:
Oct. 29, 1996
Martin Seitz, Ober-Ramstadt, DE;
U.S. Philips Corporation, New York, NY (US);
Abstract
A circuit arrangement for deriving horizontal frequency and vertical frequency pulses from a synchronizing signal, in which all clocked components are provided with the same clock during the digital processing of the synchronizing signal. Too derive the horizontal (H) pulse signal, a logic circuit 2 is provided which combines the sync signal with a masking pulse signal derived from the clocked sync signal. To derive the vertical (V) pulse signal in the clock raster, a counting flip-flop 14 is driven by the clocked sync signal after combination with the vertical pulse signal via an interference pulse signal suppression circuit 10. To derive the 2V pulse signal, a logic circuit 17 is provided which combines the V pulse signal with a pulse signal derived from the clocked sync signal.