Invention Grant
- Patent Title: Reproduced signal evaluating method, information recording medium, reproducing device, and recording device
- Patent Title (中): 再现信号评估方法，信息记录介质，再现装置和记录装置
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Application No.: US12745297Application Date: 2009-09-29
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Publication No.: US08243571B2Publication Date: 2012-08-14
- Inventor: Kiyotaka Ito , Yasumori Hino , Harumitsu Miyashita , Isao Kobayashi
- Applicant: Kiyotaka Ito , Yasumori Hino , Harumitsu Miyashita , Isao Kobayashi
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Priority: JP2008-257679 20081002
- International Application: PCT/JP2009/004991 WO 20090929
- International Announcement: WO2010/038427 WO 20100408
- Main IPC: G11B5/09
- IPC: G11B5/09 ; G11B20/10 ; G11B27/36 ; G11B7/0045
Abstract:
A reproduction signal evaluation method according to the present invention relates to adjustment of an edge portion between a shortest mark and a shortest space in a data sequence including marks and spaces in combination that is recordable on an information recording medium. In a pattern including a shortest mark and a shortest space adjacent before or after the shortest mark, a shift amount of an edge of the shortest mark is obtained from a differential metric calculated regarding one of a first pattern in which a space adjacent to the shortest mark and not adjacent to the shortest space is longer than the shortest space; and a second pattern in which a mark adjacent to the shortest space and not adjacent to the shortest mark is longer than the shortest mark.
Public/Granted literature
- US08203922B2 Reproduced signal evaluating method, information recording medium, reproducing device, and recording device Public/Granted day:2012-06-19
Information query
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