发明名称 |
COMPRESSION-ENCODING DEVICE AND METHOD |
摘要 |
PROBLEM TO BE SOLVED: To provide a compression-encoding device and method capable of the stuffing of a large amount at a high speed when a stuffing operation is required so as not to overflow the decoder buffer of a decoding device. SOLUTION: A VLC(variable length coding) and byte stuffing circuit 14 variable length codes output data from an encoding core part 11 by the unit of a prescribed access unit, turns them to encoded data and inserts the stuffing data of a byte unit into the encoded data. A word stuffing circuit 17 inserts the stuffing data of a word unit into the encoded data of the unit of the access unit. A virtual stuffing circuit 20 virtually performs the stuffing to the encoded data stored in a DRAM 13 and performs actual stuffing by the unit at the time of read. A controller 15 controls the compression-encoding and stuffing based on a picture input timing detected in a synchronization detection circuit 16. |
申请公布号 |
JPH11251922(A) |
申请公布日期 |
1999.09.17 |
申请号 |
JP19980048079 |
申请日期 |
1998.02.27 |
申请人 |
SONY CORP |
发明人 |
TAKASHIMA MASATOSHI;OTSUKI TOMOYUKI |
分类号 |
H04N5/907;H03M7/40;H04N5/765;H04N5/91;H04N5/92;H04N5/922;H04N7/08;H04N7/081;H04N7/24;H04N19/00;H04N19/115;H04N19/15;H04N19/423;H04N19/91 |
主分类号 |
H04N5/907 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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