| 摘要 |
PROBLEM TO BE SOLVED: To provide a data encoder and a data encoding method by which a processing speed can be increased and a hardware scale can be reduced, and to provide a program therefor. SOLUTION: When the event that M pieces of past symbol strings and M pieces of future symbol strings adjacent to the present point of time of encoding in symbol strings match occurs, M is defined as an encoding object and the point of time of encoding is moved to M symbols ahead. In that case, when the event continuous for N times, encoding is performed with respect to the M and the N. COPYRIGHT: (C)2003,JPO
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