Invention Grant
US08385175B2 Recording and reproduction apparatus and method for monitoring and managing laser power calibration areas in a multi-layer recording medium
失效
用于在多层记录介质中监测和管理激光功率校准区域的记录和再现装置和方法
- Patent Title: Recording and reproduction apparatus and method for monitoring and managing laser power calibration areas in a multi-layer recording medium
- Patent Title (中): 用于在多层记录介质中监测和管理激光功率校准区域的记录和再现装置和方法
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Application No.: US12695753Application Date: 2010-01-28
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Publication No.: US08385175B2Publication Date: 2013-02-26
- Inventor: Kenji Akahoshi , Atsushi Fuchiwaki
- Applicant: Kenji Akahoshi , Atsushi Fuchiwaki
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Hitachi-LG Data Storage, Inc.,Hitachi Consumer Electronics Co., Ltd.
- Current Assignee: Hitachi-LG Data Storage, Inc.,Hitachi Consumer Electronics Co., Ltd.
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Kilpatrick Townsend & Stockton LLP
- Priority: JP2009-159415 20090706
- Main IPC: G11B7/0045
- IPC: G11B7/0045

Abstract:
Medium recording and reproduction apparatus and method can prevent prohibition of disc recording due to the fact that laser power calibration area becomes unusable by studying a management information update method during data recording. When usable capacity of the laser power calibration area is monitored and the capacity is reduced, management information area to be currently updated is changed to another layer.
Public/Granted literature
- US20110002205A1 Medium Recording and Reproduction Apparatus and Method Public/Granted day:2011-01-06
Information query
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