Method and system in an optical storage disc drive for conservin

Details Method and system in an optical storage disc drive for conservin Method and system in an optical storage disc drive for conservin

1998-06-17

2000-09-05

Huber, Paul W.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369116, G11B 390

Patent

active

061153397

ABSTRACT:
A method and system in an optical storage disc drive for conserving laser power after the reading or writing of data from or to an optical storage disc via a laser light beam generated by a laser light source within the optical storage disc drive, wherein the optical storage disc contains multiple data layers therein. An optical storage disc is provided wherein the optical storage disc includes an outermost data layer and successive multiple interior data layers therein for the storage of data. Thereafter, the laser light beam is focused at an interior data layer of the optical storage disc in order to read or write data from or to the interior data layer. Data is then read from or written to the interior data layer, in response to focusing the laser light beam at the interior data layer. Then, the laser light beam is automatically refocused at the outermost data layer of the optical storage disc if the optical storage disc drive enters a quiescent mode after the reading or writing of the data, such that upon refocusing, the laser light source experiences a decrease in laser power, thus promoting an extension of the life of the laser light source. The laser light beam can then be refocused at the next succeeding data layer of the optical storage disc, in response to terminating the quiescent mode, or in response to a particular user input.

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