Method and system for window realignment using pipeline and sync correction to correct data frame boundaries

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United States of America Patent

PATENT NO 6693867
SERIAL NO

09595423

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Abstract

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The present invention provides a method and system for window realignment to correct the data frame boundaries of data from an optical media. The present invention includes: determining if a sync pattern for a data frame is within a sync window; opening an extended sync window, if the sync pattern for the data frame is not within the sync window; determining if the sync pattern for the data frame is within the extended sync window; and realigning the sync window to the sync pattern in the extended sync window, if the sync pattern is within the extended sync window. The present invention utilizes an extended sync window to realign the sync window when the number of missing sync patterns in a data stream has exceeded a threshold number. In the preferred embodiment, the width of the extended sync window and the threshold number are programmable. In this manner, the sync window can be realigned before shifting of the data renders the data uncorrectable. This provides flexibility and avoids some data rereads, which improves the performance of optical drive. The present invention is also compatible with many different data formats.

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Patent Owner(s)

Patent OwnerAddress
PROMOS TECHNOLOGIES INC3F NO 19 LI-HSIN ROAD SCIENCE-BASED INDUSTRIAL PARK HSIN CHU CITY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sharan, Shashank Milpitas, CA 1 0
Tran, Paul Thanh Milpitas, CA 3 11

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