Patent ID: 9747161
Date: 2017-08-29
CPC Classifications: G06F,G11B,H03M

Claim:
1. A signal processing device, comprising: an extraction section that extracts, from an input digital signal, a decoding target signal at an extraction timing that has been determined as a timing for extracting the decoding target signal; a decoding section that decodes the decoding target signal by estimating, by a maximum likelihood decoding, a candidate for a decoding result of the decoding target signal extracted by the extraction section and by detecting a maximum likelihood decoding result; and an adjustment section that adjusts the extraction timing using a likelihood of the candidate for the decoding result estimated by the decoding section, wherein adjustment of the extraction timing by the adjustment section is initiated on a condition that a predetermined time, which is an upper limit time in which deviations in the extraction timing are permissible, has elapsed from initiation of extraction of the decoding target signal by the extraction section, and wherein the adjustment section calculates the likelihood based on the extracted decoding target signal each time the decoding target signal is extracted by the extraction section, and adjusts the extraction timing using the calculated likelihood each time the likelihood is calculated.