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. 08, 1983
Filed:
Oct. 07, 1981
Applicant:
Inventors:
Dirk Braune, Ahrensburg, DE;
Wolfgang Schwartz, Hamburg, DE;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358154 ;
Abstract
A circuit arrangement for extracting a field synchronizing signal from a television signal comprising binary switching stages. Herein, the duration of a broad field synchronizing pulse is determined because the peak value thereof is sampled with a clock signal, the period of the clock signal being significantly shorter than the duration of a line synchronizing pulse. For this purpose the frequency thereof may be the color sub-carrier frequency or a multiple thereof.