Motion blur compensation for moving media optical data...

Details Motion blur compensation for moving media optical data... Motion blur compensation for moving media optical data...

G - Physics

11

B

352/32.21

G11B 7/00 (2006.01) G11B 7/125 (2006.01) G11C 13/04 (2006.01)

Patent

CA 1118890

ABSTRACT OF THE DISCLOSURE An optical data recording system in which during recording the writing beam is made to move at the same velocity as the recording medium whereby motion blur is minimized or reduced. Movement of the writing beam at the me velocity as the recording medium is achieved by supply- ing a constantly varying frequency RF signal to an acousto- optic device which deflects (diffracts) the writing beam in accordance with the instantaneous frequency of the RF signal. The acousto-optic device can also be utilized to amplitude modulate the writing beam.

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