System and method for controlling interrupts in a control system for an optical disc drive
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United States of America Patent
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Nov 8, 2005
Grant Date -
Oct 3, 2002
app pub date -
Sep 10, 2001
filing date -
Jan 25, 2001
priority date (Note) -
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Abstract
A control system for an optical disc for optical media with a premastered area that cannot be overwritten and a user-writeable area that can be overwritten, comprises a first processor operable to communicate with a second processor via a status register. The first processor sequences and monitors functions performed in the second processor and the second processor issues an interrupt when an error condition is detected in the second processor. The first processor detects the interrupt, and disables detecting further interrupts until the interrupt is serviced. Servicing the interrupt includes recording the error state and changing focus and tracking parameters based on the error condition detected.
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