Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Reexamination Certificate
2008-07-08
2008-07-08
Nguyen, Linh V (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
C341S051000, C341S063000, C341S065000, C341S067000, C375S340000, C375S341000, C375S262000, C375S377000
Reexamination Certificate
active
07397411
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 apparatus100for inputting audio coded data includes first to N-th code conversion and transmission units102and104to106for converting audio data to N pieces of coded data, and transmitting the data at predetermined or adaptively variable time intervals to M transmission lines130. The second to N-th audio code conversion and transmission units104to106codes a frame at a compression rate equal to or higher than the rate of input coded data. The code conversion and reception apparatus120selects a transmission line using a selection unit107, and selecting data from correctly received coded data in a frame or packet unit, thereby reconfiguring the coded data using a coded data reconfiguration unit112.
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Dei Hiroaki
Hatabu Atsushi
Ozawa Kazunori
NEC Corporation
Nguyen Linh V
Scully , Scott, Murphy & Presser, P.C.
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