Invention Grant
- Patent Title: Combination type optical disk medium, its reproduction method and optical disk apparatus
- Patent Title (中): 组合型光盘介质，其再现方法和光盘装置
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Application No.: US12795087Application Date: 2010-06-07
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Publication No.: US08149681B2Publication Date: 2012-04-03
- Inventor: Hiroshi Hirayama
- Applicant: Hiroshi Hirayama
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2007-080479 20070327
- Main IPC: G11B7/00
- IPC: G11B7/00
Abstract:
A combination type optical disk medium and recording or reproducing method in which the medium include first and second recording layers based on different recoding densities. First and second volume spaces are formed to the first and second recording layers, respectively. Each volume space includes identification information of a head or end of the volume space, and an area for data. One of the volume spaces is recorded with identification information of the other volume space.
Public/Granted literature
- US20100246372A1 Combination Type Optical Disk Medium, Its Reproduction Method And Optical Disk Apparatus Public/Granted day:2010-09-30
Information query
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