Apparatus and method for recording information in optical...

Details Apparatus and method for recording information in optical... Apparatus and method for recording information in optical...

2011-04-19

2011-04-19

Young, Wayne R (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

Reexamination Certificate

active

07929403

ABSTRACT:
To record information in an optical storage medium, a pulsed laser beam produced by a laser light source is split into first and second pulsed laser beams by a beam splitter. The first pulsed laser beam to be concentrated in the optical storage medium supported by a medium support part is interrupted and resumed by a shutter. The second pulsed laser beam is received by a photosensor which produces a detection signal. A controller includes a sync-generator configured to receive the detection signal from the photosensor and to generate a synchronizing signal based upon the received detection signal, and a shutter driver configured to drive the shutter in synchronization with timing represented by the synchronizing signal generated by the sync-generator.

REFERENCES:
patent: 7535806 (2009-05-01), Fumanti
patent: 2005-122807 (2005-05-01), None

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