Optical disc write/read methods and apparatus with improved...

Details Optical disc write/read methods and apparatus with improved... Optical disc write/read methods and apparatus with improved...

G - Physics

11

B

352/32.21

G11B 7/095 (2006.01) G11B 7/09 (2006.01) G11B 7/12 (2006.01)

Patent

CA 1201806

- 0 - OPTICAL DISC WRITE/READ METHODS AND APPARATUS WITH IMPROVED FOCUS AND TRACKING CONTROL Abstract Spot-focus of a write or read beam upon a flexible optical disc, which is rotated with its neutral plane highly stabilized in space, is main- tained precisely by moving the write or read beam source (e.g. a laser diode) in response to focus error signals.

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