Invention Grant
- Patent Title: Apparatus and method identifying disc type
- Patent Title (中): 设备和方法识别光盘类型
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Application No.: US10603813Application Date: 2003-06-26
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Publication No.: US08472290B2Publication Date: 2013-06-25
- Inventor: Young-woo Lee , Sang-whook Kim
- Applicant: Young-woo Lee , Sang-whook Kim
- Applicant Address: KR Suwon-Si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-Si
- Agency: Staas & Halsey LLP
- Priority: KR2002-70061 20021112
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
A method and apparatus identifying a type of a recordable disc according to whether a land pre-pit (LPP) is formed on the disc. The apparatus includes an RF (radio frequency) amplifier amplifying light reflected by the disc to a predetermined value; an LPP signal detector detecting an LPP (Land Pre-Pit) signal from output signals of the RF amplifier; and a system controller identifying a type of the disc according to whether the LPP signal is detected by the LPP signal detector. Since a disc type is discriminated and operational conditions of a disc drive are adequately set during an early stage of a disc driving period, a lead-in time of a disc can be reduced.
Public/Granted literature
- US20040090883A1 Apparatus and method identifying disc type Public/Granted day:2004-05-13
Information query
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