Disk drive device

Details Disk drive device Disk drive device

2005-10-25

2005-10-25

Hindi, Nabil (Department: 2655)

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Control of information signal processing channel

C369S047250, C369S124100

Reexamination Certificate

active

06958958

ABSTRACT:
During recording operations, decay processing is performed with regard to reflected light information signals (I1and I2) during periods wherein the laser output is recording power which is comparatively high level, i.e., wherein data pits are being formed on the disk, and during recording operations, decay processing is not performed with regard to reflected light information signals during periods wherein the laser output is reproducing power which is comparatively low level, i.e., wherein the pits are not being formed on the disk. Accordingly, address information can be extracted in a stable manner while recording.

REFERENCES:
patent: 6614745 (2003-09-01), Takeda et al.

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