Invention Grant
- Patent Title: Optical disc apparatus and information recording method thereby
- Patent Title (中): 光盘装置及信息记录方法
-
Application No.: US11891457Application Date: 2007-08-10
-
Publication No.: US07751289B2Publication Date: 2010-07-06
- Inventor: Masaki Amano
- Applicant: Masaki Amano
- Applicant Address: JP Tokyo
- Assignee: Hitachi-LG Data Storage, Inc.
- Current Assignee: Hitachi-LG Data Storage, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Townsend and Townsend and Crew LLP
- Priority: JP2006-337142 20061214
- Main IPC: G11B15/52
- IPC: G11B15/52

Abstract:
If a failure is detected during operation of information recording in an optical disc apparatus, the optical disc apparatus stops the recording operation, changes the number of rotations of the optical disc to a low-speed value, seeks a selected recording region, performs OPC processing and trial write operation, measures a β value as a result of the trial write operation, calculates optimal recording power based on the difference between the measured β value and a target β value and recording power set in the OPC processing, and starts the operation of information recording with the selected number of rotations for low-speed operation by use of the optimal recording power.
Public/Granted literature
- US20080144468A1 Optical disc apparatus and information recording method thereby Public/Granted day:2008-06-19
Information query
IPC分类: