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Method and system for thermal management in an optical storage system

A storage system and optical technology, applied in the direction of optical recording/reproduction/erasing method, information storage, recording information storage, etc., can solve the problem that the purpose of speed cooling is not optimal

Inactive Publication Date: 2007-06-27
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, however, the speed is not optimal for cooling purposes

Method used

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  • Method and system for thermal management in an optical storage system
  • Method and system for thermal management in an optical storage system
  • Method and system for thermal management in an optical storage system

Examples

Experimental program
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Embodiment Construction

[0054] FIG. 1 schematically shows an optical disc drive 1 , which is suitable for storing information on an optical disc 2 or reading information from the optical disc 2 . For rotating the disk 2 , the disk drive device 1 comprises a motor 4 , which defines a rotation axis 5 . In order to receive and hold the disk 2 , the disk drive device 1 also includes a turntable or a snap-in hub 6 which, when a spindle motor 4 is used, is mounted on the spindle 7 of the motor 4 .

[0055] The disk drive apparatus 1 also includes an optical system 30 that scans a track (not shown) of the disk 2 with a light beam. More specifically, the optical system 30 comprises a beam generating device 31, typically a laser such as a laser diode, for generating a beam 32 which is directed and converged on the disc 2 by an optical device which itself is Known, in order to simplify the description, not shown in the drawings. As known to those skilled in the art, during writing, the intensity of the laser...

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PUM

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Abstract

The invention relates to a control method and system (90) for a disc drive apparatus (1) in which, if the temperature of, for example, the laser is determined to be too high, the control unit (90) is arranged to either: 1) first cause the disc drive apparatus (1) to enter a duty cycle mode, in which the apparatus is alternately operative in a normal mode and an energy saving mode, and then, if the temperature is determined some predetermined time later to still be too high, cause the write speed of the apparatus to drop to the next available write speed, e.g. 16X to 12X or 10X to 8X, etc..., or 2) first cause the write speed of the apparatus to drop to the next available write speed, and then, if the temperature is determined some predetermined time later to still be too high, cause the disc drive apparatus 1 to enter a duty cycle mode as defined above.

Description

technical field [0001] The present invention relates generally to thermal management in optical storage systems, and more particularly, to a method for effecting thermal management of optical disc drives to minimize data write / reproduction when the temperature of the optical radiation source is too high. Systems and methods for loss of transmission rate. [0002] Examples of storage media used in such optical disc drives are eg CD-R, CD-RW, DVD, Blu-ray Disc (BD) and the like. Background technique [0003] As is well known, an optical storage disc comprises at least one track in the form of a continuous spiral or a plurality of concentric circles, in which storage space information can be stored. Optical discs may be of the read-only type, on which information is recorded during manufacture and whose data can only be read by a user. Optical storage discs may also be of the writable type on which information can be stored by a user. [0004] In order to write information i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B19/04G11B19/28G11B19/26G11B33/14G11B7/004
CPCG11B19/04G11B19/26G11B19/28G11B33/144G11B33/14G11B7/004
Inventor H·范德卡尔
Owner KONINK PHILIPS ELECTRONICS NV