Invention Grant
- Patent Title: Optical recording medium, manufacturing method for optical recording medium
- Patent Title (中): 光记录介质,光记录介质的制造方法
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Application No.: US13817033Application Date: 2011-08-11
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Publication No.: US08854938B2Publication Date: 2014-10-07
- Inventor: Toshiyuki Kashiwagi , Yoshihiro Akimoto , Kimihiro Saito , Akiya Saito
- Applicant: Toshiyuki Kashiwagi , Yoshihiro Akimoto , Kimihiro Saito , Akiya Saito
- Applicant Address: JP Tokyo
- Assignee: Sony Corporationn
- Current Assignee: Sony Corporationn
- Current Assignee Address: JP Tokyo
- Agency: Sony Corporation
- Priority: JPP2010-184371 20100819; JPP2011-156275 20110715
- International Application: PCT/JP2011/068379 WO 20110811
- International Announcement: WO2012/023491 WO 20120223
- Main IPC: G11B7/00
- IPC: G11B7/00 ; G11B7/24085 ; G11B7/007 ; G11B7/26

Abstract:
An optical recording medium and a manufacturing method for forming the optical recording medium is provided.The optical recording medium includes a bar code-shaped reflection pattern that includes high reflection rate regions and low reflection rate regions and information is recorded with the bar code-shaped reflection pattern. The low reflection rate region is formed with pit strings. The high reflection rate region and the low reflection rate region are formed to satisfy: S+M/2≦0.6H, where a signal level of a reproduction signal obtained from a reflection light in the high reflection rate region is denoted as “H”, a signal level of a reproduction signal obtained from a reflection light in the low reflection rate region is denoted as “S”, and a degree of modulation of the reproduction signal obtained from the reflection light in the low reflection rate region is denoted as “M”.
Public/Granted literature
- US20130142028A1 OPTICAL RECORDING MEDIUM, MANUFACTURING METHOD FOR OPTICAL RECORDING MEDIUM Public/Granted day:2013-06-06
Information query
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