发明名称 |
VARIABLE LENGTH ENCODING METHOD, VARIABLE LENGTH DECODING METHOD, STORAGE MEDIUM, VARIABLE LENGTH ENCODING DEVICE, VARIABLE LENGTH DECODING DEVICE, AND BIT STREAM |
摘要 |
<p>The present invention correctly decodes data encoded with a variable-length encoding method that improves the compression ratio. <??>The variable-length encoding method encodes a unit data composed of a plurality of sub-data while referencing parameter tables, and includes the following steps: an initialization step in which an obtained parameter table is set to initial values; a parameter table information encoding step in which information related to the initialized parameter table is encoded; a parameter obtainment step in which encoding parameters to be used in the encoding of sub-data are obtained from the parameter table; a sub-data encoding step in which variable-length encoding of the sub-data is performed with reference to the obtained encoding parameters, and an encoded information placement step in which the encoded information is placed in a position in which the information can be obtained before the encoded unit data. <IMAGE></p> |
申请公布号 |
EP1445869(B1) |
申请公布日期 |
2012.11.28 |
申请号 |
EP20030710347 |
申请日期 |
2003.03.13 |
申请人 |
PANASONIC CORPORATION |
发明人 |
KADONO, SHINYA;MATSUI, YOSHINORI;KONDO, SATOSHI |
分类号 |
H03M7/42;H03M7/40;H04N7/26;H04N7/50 |
主分类号 |
H03M7/42 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|