Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2007-11-13
2007-11-13
Hindi, Nabil (Department: 2627)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
Reexamination Certificate
active
10891627
ABSTRACT:
A method of improving readability in an optical drive is disclosed. In one aspect, the present disclosure teaches a method of improving readability in an optical drive including monitoring a compact disc (CD) media for tracking errors using a differential push-pull (DPP) method during an input/output (I/O) operation in an optical drive. The method further includes determining whether a tracking error is above a predetermined error threshold or if a read error has occurred. In response to a read error or tracking error, the method further includes switching from the DPP method to a three-beam tracking method based on the determination.
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Baker & Botts L.L.P.
Dell Products L.P.
Hindi Nabil
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