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. 08, 2008
Filed:
Oct. 05, 2006
Kazunori Ozawa, Tokyo, JP;
Hiroaki Dei, Tokyo, JP;
Atsushi Hatabu, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A system and a method of suppressing outstanding degradation of decoded audio quality due to a transmission error of audio coded data are provided without feedback information from a receiver, thereby reducing the increase of the number of necessary transmission bands and the arithmetic complexity on the receiving side. A code conversion and transmission apparatusfor inputting audio coded data includes first to N-th code conversion and transmission unitsandtofor converting audio data to N pieces of coded data, and transmitting the data at predetermined or adaptively variable time intervals to M transmission lines. The second to N-th audio code conversion and transmission unitstocodes a frame at a compression rate equal to or higher than the rate of input coded data. The code conversion and reception apparatusselects a transmission line using a selection unit, and selecting data from correctly received coded data in a frame or packet unit, thereby reconfiguring the coded data using a coded data reconfiguration unit