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:
Oct. 28, 2008
Filed:
Jun. 29, 2004
Andreas Loew, Gross-Gerau, DE;
Andreas Loew, Gross-Gerau, DE;
Thomson Licensing, Boulogne-Billancourt, FR;
Abstract
In order to avoid rounding errors as a result of restricted accuracy of the processing unit in a video processing arrangement, a comparison is carried out between processed image data and unprocessed image data. For this purpose, the unprocessed image data is buffer-stored in a memory and is supplied together with the processed image data to a comparator, which compares the difference between the processed image data and the unprocessed image data with a threshold value. Either the processed image data or the unprocessed image data is produced at the output of the arrangement, by means of a multiplexer, as a function of the result of the comparison. A rounding element between the processing unit and the multiplexer rounds the processed image data before it is emitted, if the processing stage has not itself carried out a rounding process.