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Title:
INFORMATION PROCESSING DEVICE, OPTICAL STORAGE DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2017/208721
Kind Code:
A1
Abstract:
Provided are a device and a method for generating a reproduction signal with less laser noise. The device includes: a photodetector (PD) that irradiates a disc with laser light and outputs a signal based on the reflection light from the disc; a front monitor that outputs a reference signal based on the emission light from a laser diode; and a data detection processing unit that receives an output signal from the PD and generates a reproduction signal. The data detection processing unit generates a reproduction signal with less laser noise on the basis of calculation results using the output from an adaptive reproduction signal equalizer for outputting an equalized signal using adaptive equalization processing based on a PD output signal and the output from an adaptive laser noise equalizer for outputting an equalized signal using adaptive equalization processing based on a laser noise signal.

Inventors:
KOBAYASHI, Nobuyoshi (1-7-1 Konan, Minato-K, Tokyo 75, 〒1080075, JP)
SHIRAISHI, Junya (1-7-1 Konan, Minato-K, Tokyo 75, 〒1080075, JP)
Application Number:
JP2017/017116
Publication Date:
December 07, 2017
Filing Date:
May 01, 2017
Export Citation:
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Assignee:
SONY CORPORATION (1-7-1, Konan Minato-K, Tokyo 75, 〒1080075, JP)
International Classes:
G11B7/005; G11B7/13; G11B20/10; G11B20/18
Domestic Patent References:
WO2016006157A12016-01-14
Foreign References:
JP2006079772A2006-03-23
JP2005310218A2005-11-04
Attorney, Agent or Firm:
MIYATA, Masaaki et al. (Daido Patent Attorneys Partnership Corporation, Daiwa Hatchobori ekimae Bldg. West 8F 3-25-9, Hatchobori, Chuo-K, Tokyo 32, 〒1040032, JP)
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