Invention Publication
EP1271491A3 Optical recording medium with readily distinguished lead-out area
审中-公开
具有容易辨认的引出区的光记录介质
- Patent Title: Optical recording medium with readily distinguished lead-out area
- Patent Title (中): 具有容易辨认的引出区的光记录介质
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Application No.: EP02254074.4Application Date: 2002-06-12
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Publication No.: EP1271491A3Publication Date: 2004-07-28
- Inventor: Yoon, Du-seop , Lee, Kyung-geun , Choi, Byoung-ho , Shim, Jae-seong
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: 416, Maetan-dong, Paldal-gu Suwon-City, Kyungki-do KR
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: 416, Maetan-dong, Paldal-gu Suwon-City, Kyungki-do KR
- Agency: Robinson, Ian Michael
- Priority: KR2001034377 20010618
- Main IPC: G11B7/007
- IPC: G11B7/007 ; G11B27/19 ; G11B27/24
Abstract:
An optical recording medium has a user data area (120) and a lead-out area (130), wherein the user data area and the lead-out area each has grooves (123) and lands (125) formed thereon. Wobbles (105,135) are formed on at least one lateral surface of grooves of the user data area and the lead-out area, and configured such that wobble characteristics are made different between the user data area and the lead-out area. Different types of wobbles are formed on the grooves of either the user data area or the lead-out area, thereby preventing an optical pickup that performs recording/reproduction from deviating from the user data area (120). Also, in a multi-layer optical recording medium, a whole area of a recording layer is configured to have a same condition, thereby preventing deterioration in reproduction and/or recording due to a difference in light power transmittance of another recording layer.
Public/Granted literature
- EP1271491A2 Optical recording medium with readily distinguished lead-out area Public/Granted day:2003-01-02
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