| 摘要 |
PROBLEM TO BE SOLVED: To provide a disk signal analyzing device capable of analyzing response characteristics for an optical reproduction system before determining specification for a Viterbi decoding circuit. SOLUTION: In the disk signal analyzing device having a PRML signal processing circuit, the PRML signal processing circuit is arranged with a means for setting up given reference level, a means for setting up a given equalization target level, and a means for choosing either of these reference level signals or target level signals as an adaptive equalization target. COPYRIGHT: (C)2007,JPO&INPIT
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