Coded data generation or conversion – Digital code to digital code converters – To or from packed format
Reexamination Certificate
2007-02-20
2007-02-20
Nguyen, Linh V. (Department: 2819)
Coded data generation or conversion
Digital code to digital code converters
To or from packed format
C341S050000
Reexamination Certificate
active
10512648
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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