Invention Grant
- Patent Title: Disc discrimination method and apparatus
- Patent Title (中): 光盘辨别方法和装置
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Application No.: US12021144Application Date: 2008-01-28
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Publication No.: US07948838B2Publication Date: 2011-05-24
- Inventor: Seung Cheol Lee
- Applicant: Seung Cheol Lee
- Applicant Address: KR Seoul
- Assignee: LG Electronics Inc.
- Current Assignee: LG Electronics Inc.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR10-2007-0096464 20070921
- Main IPC: G11B7/00
- IPC: G11B7/00
Abstract:
A method for discriminating a type of disc. The method includes receiving a signal having at least first and second peak points generated by an optical beam reflected from a record layer of the disc, comparing amplitudes of the first and second peak points, and determining the type of the disc based on a result of the comparing step.
Public/Granted literature
- US20090080305A1 DISC DISCRIMINATION METHOD AND APPARATUS Public/Granted day:2009-03-26
Information query
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