Invention Grant
- Patent Title: System and method for controlling tracking in an optical drive
- Patent Title (中): 用于控制光驱中跟踪的系统和方法
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Application No.: US12338841Application Date: 2008-12-18
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Publication No.: US08125862B2Publication Date: 2012-02-28
- Inventor: John Anderson Fergus Ross , Kenneth Brakeley Welles , John Erik Hershey , Xiaolei Shi , Victor Petrovich Ostroverkhov
- Applicant: John Anderson Fergus Ross , Kenneth Brakeley Welles , John Erik Hershey , Xiaolei Shi , Victor Petrovich Ostroverkhov
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agent Fletcher Yoder
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
The present techniques provide methods and systems for alignment of a read head with data tracks on an optical data disk. In embodiments, a multi-pixel detector that is segmented into multiple areas, or detector segments, may be used to detect a pattern in the light reflected from an optical data disk. The detector system may then combine the quantized values from each of the detector segments mathematically to determine the alignment of the read head with a target data track. If the read head drifts to one side or the other, detectors to the side of a center detector may start to pick up energy from the adjacent tracks. If this energy is continuously summed for the detectors on each side, the read head may be centered by balancing the sums from the detectors on each side.
Public/Granted literature
- US20110170391A1 SYSTEM AND METHOD FOR CONTROLLING TRACKING IN AN OPTICAL DRIVE Public/Granted day:2011-07-14
Information query
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