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. 20, 1994
Filed:
Aug. 19, 1993
Jeroen H Stessen, Eindhoven, NL;
Robert R Meijler, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A picture signal processor providing a contrast reduced picture signal, which includes a first contrast reduction device (MUL-R1, D5, CA1) receiving a picture signal (R-in) for providing a first contrast reduced picture signal (R), the first contrast reduction device only reduces the contrast of the picture signal (R-in) when the picture signal (R-in) exceeds a given first threshold (95%) for relatively large areas, while the picture signal processor further includes a second contrast reduction device (MUL-R2, D8, CA2), which is coupled to the first contrast reduction device (MUL-R1, D5, CA1) and which provides the contrast reduced picture signal by immediately reducing the contrast of a too bright part of the first contrast reduced picture signal (R) as soon and as long as an instantaneous amplitude of the first contrast-reduced picture signal (R) exceeds a given second threshold (100%).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile