Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Control of information signal processing channel
Reexamination Certificate
2005-11-08
2005-11-08
Hindi, Nabil (Department: 2655)
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Control of information signal processing channel
C369S030240, C369S053180, C369S053120
Reexamination Certificate
active
06963524
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.
REFERENCES:
patent: 5630165 (1997-05-01), Brett et al.
patent: 5875158 (1999-02-01), Schell
patent: 6799242 (2004-09-01), Tsuda et al.
patent: 0517 473 (1992-12-01), None
Kadlec Ron J.
Turner Christopher J.
Watt Charles R.
DPHI Acquisitions, Inc.
Hallman Jon W.
Hindi Nabil
MacPherson Kwok & Chen & Heid LLP
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