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. 12, 1989
Filed:
Aug. 04, 1988
Johannes G Raven, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
In a video signal processing circuit comprising a complementary filter circuit (3), a subtracting circuit (27) is coupled to an input (1, 5, 33, 29) and to an output (9, 13, 25) of filter (7). The output (9) of the filter (7) is coupled, via a signal path which comprises a noise suppression circuit (43), to a combining circuit (55) which is further coupled to an output (37) of the substracting circuit (27). In order to compensate for the distortion occuring in the signal path via the noise suppression circuit (43) as a result of conversions (13, 49), the distortion in the signal path from the output (9) of the filter (7) to the subtracting circuit is made equal thereto by applying the same conversions (13, 21).