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:
Nov. 27, 2001
Filed:
Jan. 22, 1999
Andrzej Wozniak, Palaiseau, FR;
Other;
Abstract
The present invention relates to a process for converting the representation of a video image between two coding systems with the aid of two respective sets of parameters, in which each set of parameters is deduced from the other by means of a matrix transformation. For each parameter of the set to be converted from the first coding system to the second coding system, a breakdown (,A,,B,,C;,A,,B,,C) is selected in the parameters of the second coding system representing the value of the parameter in the matrix transformation. The breakdowns of each of the parameters to be converted are added and may then be shifted and reorganized. Each of the parameters of the two coding systems have ranges of authorized values. In the conversion process, the values of the parameters to be converted and/or the values of the converted parameters that are outside the corresponding ranges of values are clipped.