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. 06, 1985
Filed:
Mar. 05, 1984
Adriaan Cense, Nijmegen, NL;
Evert H Schutte, Nijmegen, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
In a hue control circuit for controlling the phase between a color synchronizing signal and a chrominance signal by a setting element (57), this phase control is obtained without the amplitude being influenced, by deriving (via 17) from the original color synchronizing or chrominance signal a color synchronizing or chrominance signal whose phase is shifted through 90.degree. and by controlling the amplitude of each of these color synchronizing or chrominance signals and adding these signals together (in 35). One color synchronizing or chrominance signal is amplitude-controlled cosinusoidally (by 25) and the other color synchronizing or chrominance signal is amplitude-controlled sinusoidally (by 13) by means of the setting element (57).