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:
Dec. 10, 2013
Filed:
Jun. 02, 2009
Xavier Henocq, Melesse, FR;
Fabrice Le Leannec, Mouaze, FR;
Patrice Onno, Rennes, FR;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
For transmitting a sequence of video images on a network between a server and a client, that sequence being coded according to a hybrid predictive coding mode and comprising a plurality of images, each image being broken down into a plurality of macroblocks of pixels: the plurality of macroblocks is classified (E) into at least two groups of macroblocks according to a predetermined criterion; these groups of macroblocks are completed (E, E) by additional macroblocks; at least two scalable coding levels are created (E, E) from these groups of macroblocks; unequal protection against transmission errors is applied (E) to the groups of macroblocks based on the predetermined criterion; and the scalable coding levels are transmitted (E) on the network.