Title:
LIFETIME IMPROVEMENT OF LASER DIODES IN OPTICAL DRIVES
Document Type and Number:
WIPO Patent Application WO/2009/129921
Kind Code:
A8
Abstract:
A reproducing apparatus for reproducing data recorded on an optical record carrier is provided having an improved lifetime of the laser light source used to read the data. The reproducing apparatus includes a laser driver unit that is adapted to drive the light output of the laser light source to change from a reading mode, in which data recorded in the optical disc is being read for being reproduced, into a laser lifetime extension mode when an operation of reading said data is paused. In the laser lifetime extension mode, the laser light source is driven to emit a pulsed light output, therefore, the amount of time in which the laser light source is on without being needed is reduced and the lifetime of the laser light source is improved.
Inventors:
RUTSCHMANN RICHARD (DE)
HUONKER MICHAEL (DE)
HUONKER MICHAEL (DE)
Application Number:
PCT/EP2009/002486
Publication Date:
December 23, 2010
Filing Date:
April 03, 2009
Export Citation:
Assignee:
HARMAN BECKER AUTOMOTIVE SYS (DE)
RUTSCHMANN RICHARD (DE)
HUONKER MICHAEL (DE)
RUTSCHMANN RICHARD (DE)
HUONKER MICHAEL (DE)
International Classes:
G11B7/005; G11B7/125
Attorney, Agent or Firm:
KUHL, Dietmar (Kinkeldey Stockmair & Schwanhäusse, Leopoldstraße 4 München, DE)
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