发明名称 Method and apparatus for efficiently decoding variable length encoded data
摘要 The present invention relates to a method and apparatus for performing decoding of variable length data. It is particularly effective when decoding data encoded with a Huffman or such similar encoding method. The invention employs a plurality of decoding tables which permits a fixed length of bits to be decoded in a minimum number of indexes for the size of the index. Each table is constructed such that the given node indicates whether a unique character has been decoded or whether further decoding is necessary. For data which is encoded in a manner similar to a Huffman code, a properly constructed table will yield the frequently used characters on a single index. Only less frequently used characters require multiple indexes into the plurality of tables.
申请公布号 US5915041(A) 申请公布日期 1999.06.22
申请号 US19960644930 申请日期 1996.05.13
申请人 UNISYS CORPORATION 发明人 THIELENS, JOHN B.
分类号 G06T9/00;(IPC1-7):G06K9/36 主分类号 G06T9/00
代理机构 代理人
主权项
地址