- 专利标题: Optical recording medium with different wobble characteristics between the user data area and the lead-out area
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申请号: US13422303申请日: 2012-03-16
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公开(公告)号: USRE44168E1公开(公告)日: 2013-04-23
- 发明人: Du-seop Yoon , Kyung-geun Lee , Byoung-ho Choi , Jae-seong Shim
- 申请人: Du-seop Yoon , Kyung-geun Lee , Byoung-ho Choi , Jae-seong Shim
- 申请人地址: KR Suwon-si
- 专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人地址: KR Suwon-si
- 代理机构: NSIP Law
- 优先权: KR2001-34377 20010618
- 主分类号: G11B7/24
- IPC分类号: G11B7/24 ; G11B7/007
摘要:
An optical recording medium has a user data area and a lead-out area, wherein the user data area and the lead-out area each has grooves and lands formed thereon. Wobbles 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. 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.
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