Invention Grant
- Patent Title: Method and apparatus for determining the number of data layers in an optical disc
- Patent Title (中): 用于确定光盘中数据层数量的方法和装置
-
Application No.: US13100958Application Date: 2011-05-04
-
Publication No.: US08422346B2Publication Date: 2013-04-16
- Inventor: Wen-Chun Feng
- Applicant: Wen-Chun Feng
- Applicant Address: TW Hsinchu
- Assignee: Sunplus Technology Co., Ltd.
- Current Assignee: Sunplus Technology Co., Ltd.
- Current Assignee Address: TW Hsinchu
- Agency: WPAT PC
- Agent Justin King
- Priority: TW99119965A 20100618
- Main IPC: G11B15/04
- IPC: G11B15/04
Abstract:
The present invention provides a method and an apparatus for determining the number of data layers in an optical disc. Firstly, the objective lens of the optical pickup head is controlled so that it moves toward the optical disc. At the same time, a generated SBAD signal is recorded. The number of wave peaks in the SBAD signal is then detected and the number of the data layers in an optical disc is determined according to the detected number of wave peaks in the SBAD signal.
Public/Granted literature
- US20110310717A1 METHOD AND APPARATUS FOR DETERMINING THE NUMBER OF DATA LAYERS IN AN OPTICAL DISC Public/Granted day:2011-12-22
Information query
IPC分类:
