Dynamic information storage or retrieval – Control of storage or retrieval operation by a control...
Reexamination Certificate
2007-04-24
2007-04-24
Korzuch, William (Department: 2627)
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Reexamination Certificate
active
10720754
ABSTRACT:
A method of recording data in a defective area of an optical storage medium. The method includes the steps of detecting a write start address in response to a write command; checking, when the write start address is not detected due to unstable servo control signals during the detection of the write start address, whether a specific area at the write start address is a defective area; continuing to detect the write start address while disabling a register which checks whether the servo control signals are stable when the specific area is determined to be the defective area; recording previously-generated data in the specific area when the write start address is detected and enabling the register which checks whether the servo control signals are stable; determining a replacement address for the write start address while the register which checks whether the servo control signals are stable is enabled; and recording data at the replacement address.
REFERENCES:
patent: 6614740 (2003-09-01), Park et al.
patent: 6678226 (2004-01-01), Horibata et al.
patent: 05-114252 (1993-05-01), None
patent: 1999-12101 (1999-02-01), None
Gupta Parul
Korzuch William
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