Title:
SIGNAL QUALITY INFORMATION CORRECTION DEVICE, SIGNAL QUALITY INFORMATION CORRECTION METHOD, AND INFORMATION PLAYBACK SYSTEM
Document Type and Number:
WIPO Patent Application WO/2014/054258
Kind Code:
A1
Abstract:
Measured signal quality information obtained by measuring signal quality information, which indicates the signal quality from playing back information from an information recording medium with an information playback device, includes device-based changes and medium-based changes, said device-based changes being the degree of change to the signal quality information deteriorating due to the device and said medium-based changes being the degree of change to the signal quality information deteriorating due to the information recording medium. A signal quality information correction device includes a device-based change detection unit for detecting the device-based changes contained in the measured signal quality information, and a signal quality information correction unit for correcting the measured signal quality information to signal quality information wherein the device-based changes detected by the device-based change detection unit are removed from the measured signal quality information.
Inventors:
KATO HISAE
YAMAMOTO TAKEHARU
YAMAMOTO TAKEHARU
Application Number:
PCT/JP2013/005790
Publication Date:
April 10, 2014
Filing Date:
September 27, 2013
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
G11B20/18; G06F3/06
Foreign References:
| JP2007080363A | 2007-03-29 | |||
| JP2012033225A | 2012-02-16 | |||
| JP2001312375A | 2001-11-09 | |||
| JP2005078701A | 2005-03-24 |
Attorney, Agent or Firm:
KOTANI, Etsuji et al. (JP)
Etsuji Kotani (JP)
Etsuji Kotani (JP)
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