| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a decoder that allows the address management of current data during decoding even if unnecessary data included in coded data are eliminated. <P>SOLUTION: A pre-processing buffer 1 stores coded data from an external memory 9 for each prescribed unit data so as to shift the data. A decoding buffer 5 receives unit data from the pre-processing buffer 1 so as to shift the unit data. A data determination circuit 4 determines whether or not each unit data stored in the pre-processing buffer 1 are prescribed unnecessary data. When each unit data are unnecessary data, the unnecessary unit data are erased when outputted from the pre-processing buffer 1. When the next unit data subsequent to the erased unit data are outputted from the pre-processing buffer 1 and inputted to the decoding buffer 5, the data determination circuit 4 adds the information of the erasure of the preceding unit data to the next unit data. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
