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:
Apr. 12, 1994
Filed:
Sep. 05, 1991
Hermann Treber, Hamburg, DE;
Eckhart Pech, Ammersbek, DE;
U.S. Philips Corporation, New York, NY (US);
Abstract
For the possibly simultaneous A/D conversion of two color difference signals of a first picture signal as well as a carrier-frequency chrominance signal of a second picture signal, a relevant circuit arrangement is provided with a multiplexer (3) by which a time-division multiplex signal is generated from the two color difference signals, in which time-division multiplex signal the two color difference signals alternate in time and which is added to the chrominance signal in an adder (5) to form a sum signal which is applied to an A/D converter (10) which is followed by a separating filter (11) for separating the digital time-division multiplex signal from the digital chrominance signal.