Digital tracking servo system with multi-track seek with track zero crossing detection

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United States of America Patent

PATENT NO 6909676
SERIAL NO

09950513

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Abstract

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A servo system with a multi-track seek algorithm with a zero crossing detector is presented. The zero crossing detector indicates when the tracking error signal crosses zero. In some embodiments, a delay is executed between adjacent detections of zero crossings in the tracking error signal, for example half a cycle. In some embodiments, a zero crossing is detected when the tracking error signal passes through a range around zero, the range having a positive value above zero and a negative value below zero.

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Patent Owner(s)

Patent OwnerAddress
RPX CORPORATION4 EMBARCADERO SUITE 4000 SAN FRANCISCO CA 94111

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kadlec, Ron J Longmont, CO 65 531

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