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:
Jul. 01, 2008
Filed:
Aug. 24, 2004
Yukitsuna Furuya, Tokyo, JP;
Yukitsuna Furuya, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A system for efficiently utilizing a transmission capacity without complicated processing a hierarchical code comprised of a plurality of layers having different error correcting capabilities. In a transmitter, an encoding unit encodes an image in accordance with a hierarchical coding scheme to generate a plurality of layer data. An error correcting code addition unit performs error correction coding on each of at least one layer data including the lowermost layer data in accordance with an error correction coding scheme which gives higher error correcting capabilities to a lower layer than a higher layer. A transmission unit transmits each of the layer data and error correcting codes onto a transmission path. A receiver corrects possible errors introduced on the path into the layer data received from the transmitter according to the error correction coding scheme, and decodes layer data received in a quality available for decoding to restore the image.