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Patent Searching and Data


Title:
SIGNAL PROCESSING DEVICE AND SIGNAL PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/204002
Kind Code:
A1
Abstract:
The present invention pertains to a signal processing device and a signal processing method that enable robust reproduction of data recorded at high density. The frame sync (FS), which represents the header of a frame, is restored by, from among maximum likelihood decoding of a reproduced signal that was reproduced from a disc-like recording medium in which the FS of a frame having the FS disposed in the header is recorded on two adjacent tracks in the same position in the track direction, performing maximum likelihood decoding of the FS according to a time-varying trellis in which the state and state transition are restricted in accordance with the time.

Inventors:
HIGASHINO Satoru (1-7-1 Konan, Minato-k, Tokyo 75, 〒1080075, JP)
Application Number:
JP2017/017965
Publication Date:
November 30, 2017
Filing Date:
May 12, 2017
Export Citation:
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Assignee:
SONY CORPORATION (1-7-1, Konan Minato-k, Tokyo 75, 〒1080075, JP)
International Classes:
H03M13/41; G11B20/10; G11B20/14; G11B20/18
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (Nishishinjukukimuraya Building 9F, 5-25 Nishi-Shinjuku 7-chome, Shinjuku-k, Tokyo 23, 〒1600023, JP)
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