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:
Sep. 01, 1998
Filed:
Jul. 08, 1996
Herbert Heinemann, Pinneberg, DE;
U.S. Philips Corporation, New York, NY (US);
Abstract
In a circuit arrangement for processing a color subcarrier signal reproduced by a video recorder and modulated on a carrier with a first carrier frequency to let a comb filter circuit in the arrangement have the least possible required memory capacity, there is provided that the color subcarrier signal modulated on the first carrier frequency is applied to a first mixer (1) by which the color subcarrier signal is converted to a second carrier frequency which is higher than the first carrier frequency, that the output signal of the first mixer (1) is applied to a comb filter circuit (2, 3, 4) which suppresses adjacent track originating crosstalk color signals in the reproduced color signal, and that the output signal of the comb filter circuit (2, 3, 4) is applied to a second mixer (5) by which the comb-filtered signal is converted to a third carrier frequency which is higher than the second carrier frequency.