Invention Grant
- Patent Title: Data recording apparatus and associated method of imparting data to a recording medium by irradiating a reflectivity layer of the medium
- Patent Title (中): 数据记录装置和通过照射介质的反射层将数据赋予记录介质的相关方法
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Application No.: US10309248Application Date: 2002-12-04
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Publication No.: US07221636B2Publication Date: 2007-05-22
- Inventor: Yoichiro Sako , Tatsuya Inokuchi , Tomihiro Nakagawa , Yoriaki Kanada , Yoshinobu Usui , Akiya Saito
- Applicant: Yoichiro Sako , Tatsuya Inokuchi , Tomihiro Nakagawa , Yoriaki Kanada , Yoshinobu Usui , Akiya Saito
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Sony Corporation,Sony Disc & Digital Solutions Inc.
- Current Assignee: Sony Corporation,Sony Disc & Digital Solutions Inc.
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- Priority: JP2001-371662 20011205
- Main IPC: G11B7/00
- IPC: G11B7/00
Abstract:
A method is provided for recording medium having a substrate on which first data and second data are recorded as a protrusion/depression pattern and a reflective layer that is provided on a surface having the protrusion/depression pattern. Laser light is radiated to the reflective layer to change the protrusion/depression pattern of the second data, and third data used for identifying the recording medium is additionally recorded at a predetermined position on the recording medium.
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