Optical storage drive employing variable write speed for reduced

Details Optical storage drive employing variable write speed for reduced Optical storage drive employing variable write speed for reduced

1995-12-08

1997-04-29

Huber, P. W.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 54, 360 7301, 360 7306, G11B 700, G11B 1546

Patent

active

056256159

ABSTRACT:
By adjusting the advancement rate of an optical data storage medium in response to the amount of data to be written, and operating a laser with a minimum amount of write laser power level for the particular advancement rate to achieve a desired level of write effectiveness, data signals are written to the optical medium with a minimum amount of power. Where the optical medium comprises an optical disk, choosing the rate of disk rotation selectively establishes the advancement rate. Similarly, where the optical medium comprises an optical tape, choosing the rate of tape advancement from source reel to take-up reel selectively establishes the advancement rate. Preferably, the advancement rate is increased or decreased depending upon whether a greater or lesser quantity or write length of data resides in a write queue. The invention may be implemented, for example, to provide a process, apparatus or program storage medium useful for laser storage of digital data signals to an optical data storage medium with minimal power consumption.

REFERENCES:
patent: 4937809 (1990-06-01), Miyadera et al.
patent: 5003529 (1991-03-01), Ikeda
patent: 5134606 (1992-07-01), Sekiguchi et al.
patent: 5315402 (1994-05-01), Ito et al.
patent: 5349479 (1994-09-01), Arimura et al.
patent: 5390162 (1995-02-01), Fukumoto et al.

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