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:
Mar. 03, 2009
Filed:
Oct. 31, 2001
Ioana Donescu, Rennes, FR;
Patrice Onno, Rennes, FR;
Ioana Donescu, Rennes, FR;
Patrice Onno, Rennes, FR;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The invention concerns a method of inserting a suppementary information item in a set of data reprenting physical quantities, the data having been processed by the steps of, a) partitioning (E) the set into subsets, b) entropic coding (E) of each of the subsets, c) selecting (E), for each of the subsets, a compression rate and distortion pair according to a global compression rate or a global distortion, d) writing, for each of the subsets, an index (T) representing the selected compression rate and distortion pair, in a file containing the coded subsets, characterised in that it also includes a step (E) of modifying the selected compression rate and distortion pairs, according to the supplementary information (w).