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    • 84. 发明授权
    • Apparatus for system decoder and method for error correction of packet data
    • 用于系统解码器的装置和用于分组数据的纠错的方法
    • US07131048B2
    • 2006-10-31
    • US09940576
    • 2001-08-29
    • Yoshinori SuzukiToru YokoyamaJunichi Kimura
    • Yoshinori SuzukiToru YokoyamaJunichi Kimura
    • G08C25/02H04L1/18H03M13/00
    • H04L1/0082H04L1/0045H04L1/16H04L1/1838H04N19/61H04N19/70H04N19/89H04N21/41407H04N21/4382H04N21/6131H04N21/64322
    • When a non-error-resilient application decoder receives a data stream containing syntax error due to transmission errors, such as packet losses in wireless communication, an application decoder cannot usually continue decoding the stream data anymore. According to the present invention, the data stream containing syntax error along with error correction data generated by error-detectable transmission system is inputted into an error correction part before inputted into the application decoder. The error correction part detects the error position in the data stream using the error detection data, corrects the syntax error in the stream data, and generates a stream data which is possible to be decoded by the application decoder. As a result, the data stream containing syntax error can continue decoding or be decoded in better quality by a non-error-resilient application decoder, without adding any error correcting function in the existing application decoder.
    • 当无错误弹性的应用解码器接收到由于诸如无线通信中的分组丢失的传输错误而包含语法错误的数据流时,应用解码器通常不能再继续解码流数据。 根据本发明,在输入到应用解码器之前,将包含语法错误的数据流与由错误检测的传输系统生成的纠错数据一起输入到纠错部分。 纠错部分使用错误检测数据检测数据流中的错误位置,纠正流数据中的语法错误,并生成可由应用解码器解码的流数据。 结果,包含语法错误的数据流可以通过无错误弹性的应用解码器继续解码或以更好的质量解码,而不会在现有应用解码器中增加任何纠错功能。