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    • 70. 发明授权
    • Compressed code decoding device and audio decoding device
    • 压缩码解码装置和音频解码装置
    • US6118821A
    • 2000-09-12
    • US080133
    • 1998-05-15
    • Masaharu MatsumotoTakashi KatayamaMasahiro SueyoshiShuji MiyasakaTakeshi FujitaAkihisa KawamuraTsukuru IshitoEiji OtomuraTsuyoshi Nakamura
    • Masaharu MatsumotoTakashi KatayamaMasahiro SueyoshiShuji MiyasakaTakeshi FujitaAkihisa KawamuraTsukuru IshitoEiji OtomuraTsuyoshi Nakamura
    • G10L19/00G10L21/055H04H20/00H04N7/12H04N7/26H04S3/00
    • G10L21/055G10L19/00
    • A compressed code decoding device of the present invention includes: a decoding section for receiving a plurality of groups of blocks of compressed codes and decoding each of the blocks of compressed codes; a buffer section for storing decoded signals decoded by the decoding section; a reproduction time acquisition section for acquiring a reproduction time at which to reproduce a predetermined one of the blocks; an output section for externally outputting the decoded signals stored in the buffer section; a detection section for detecting that the predetermined block of compressed codes has been decoded and output via the output section; an addition section for, at a time when the detection section detects that the predetermined block has been output, adding a time required for reproducing the predetermined block to the reproduction time acquired by the reproduction time acquisition section so as to produce a synchronization time; a synchronization section for comparing the synchronization time produced by the addition section and a current time so as to determine whether the synchronization time is ahead of or behind the current time; a code discarding section for, if the synchronization section determines that the synchronization time is ahead of the current time, discarding either compressed codes of one of the blocks next to the predetermined block or compressed codes of one of the groups next to the group including the predetermined block; and a reproduction delay section for, if the synchronization section determines that the synchronization time is behind the current time, delaying output of either decoded signals of the compressed codes of one of the blocks next to the predetermined block or decoded signals of the compressed codes of one of the groups next to the group including the predetermined block.
    • 本发明的压缩码解码装置包括:解码部分,用于接收多组压缩码块,并对每个压缩码块进行解码; 缓冲部,用于存储由解码部解码的解码信号; 再现时间获取部分,用于获取再现预定的一个块的再现时间; 输出部分,用于从存储在缓冲器部分中的外部输出解码信号; 检测部分,用于检测所述预定的压缩代码块是否经由所述输出部分被解码和输出; 一个加法部分,用于在检测部分检测到预定块已被输出时,将再现预定块所需的时间与由再现时间获取部分获得的再现时间相加以产生同步时间; 同步部分,用于比较由加法部分产生的同步时间和当前时间,以便确定同步时间是否在当前时间之前或之后; 代码丢弃部分,用于如果同步部分确定同步时间在当前时间之前,则丢弃与预定块相邻的块中的一个块的压缩代码或者包括 预定块 以及再现延迟部分,如果同步部分确定同步时间在当前时间之后,则将预定块之后的块之一的压缩码的解码信号的输出或压缩码的解码信号延迟 包括预定块的组旁边的组之一。