Invention Grant
- Patent Title: Optical information recording device, optical information recording method and optical information recording medium
- Patent Title (中): 光信息记录装置，光信息记录方法和光信息记录介质
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Application No.: US13881837Application Date: 2012-03-13
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Publication No.: US08824263B2Publication Date: 2014-09-02
- Inventor: Tomoyasu Takaoka , Atsushi Nakamura , Tetsuya Akiyama , Naoyasu Miyagawa
- Applicant: Tomoyasu Takaoka , Atsushi Nakamura , Tetsuya Akiyama , Naoyasu Miyagawa
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.C.
- Priority: JP2011-058272 20110316
- International Application: PCT/JP2012/001727 WO 20120313
- International Announcement: WO2012/124313 WO 20120920
- Main IPC: G11B7/00
- IPC: G11B7/00 ; G11B7/0045 ; G11B7/1267 ; G11B7/1263
Abstract:
When the power of the write pulse is taken as the peak power and the power of the bottom pulse is taken as the bottom power, the power setting device (114) sets the power of each pulse in the recording pulse train such that the peak power PwN of the Nth information layer which is closest to the light entry surface of the optical recording medium (11), the bottom power PbN of the Nth information layer, the peak power PwM of the Mth information layer (where M is an integer such that N>M≧1), and the bottom power PbM of the Mth information layer satisfy the following formula: PbN/PwN>PbM/PwM.
Public/Granted literature
Information query
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