Invention Grant
- Patent Title: Method for discriminating the kind of optical disk and optical disk apparatus using the same
- Patent Title (中): 鉴别光盘的种类和使用该光盘的光盘装置的方法
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Application No.: US11482725Application Date: 2006-07-10
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Publication No.: US07768888B2Publication Date: 2010-08-03
- Inventor: Motoyuki Suzuki
- Applicant: Motoyuki Suzuki
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2005-333562 20051118
- Main IPC: G11B7/00
- IPC: G11B7/00
Abstract:
An optical disk apparatus which can promptly restart reproduction and recording by using a preceding discrimination result of a disk kind without using a memory. A mechanism for correcting an aberration is constructed by an expander lens for the aberration correction and a self-holding element as a moving mechanism of the expander lens. A detector for detecting a position of the expander lens is provided. By detecting a correcting position of the expander lens, the kind of disk to which the reproduction and recording have previously been executed can be discriminated.
Public/Granted literature
- US20070115781A1 Method for discriminating the kind of optical disk and optical disk apparatus using the same Public/Granted day:2007-05-24
Information query
IPC分类:
