Dynamic information storage or retrieval – Systems having plural physically distinct independent tracks... – Continuous consecutive storage or retrieval of interrupted...
Patent
1989-09-12
1992-06-09
Richardson, Robert L.
Dynamic information storage or retrieval
Systems having plural physically distinct independent tracks...
Continuous consecutive storage or retrieval of interrupted...
369112, 369 4414, 369 4418, 369 4426, 369 4437, 359305, G11B 700
Patent
active
051201364
ABSTRACT:
An apparatus and method for optically recording information on a media. The present invention comprises an optical tape recording system for recording digital information. In the present invention, a Bragg cell, comprising an acousto-optic crystal and a transducer, is used to effect the scanning of a light beam on the media for purposes of recording or reading digital information. Further, position information is recorded on the media to allow accurate tracking of the position of the media under a read/write head of the present invention. In addition, the present invention discloses means for focussing a radiant energy beam on the media comprising a read/write head coupled with a transducer. The read/write head includes a piezoelectric layer which may effect the focussing of the read/write head under the control of a servo mechanism.
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Richardson Robert L.
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