Information storage and retrieval system

Details Information storage and retrieval system Information storage and retrieval system

G - Physics

11

B

352/32.2

G11B 7/00 (2006.01) G11B 7/0037 (2006.01) G11B 7/095 (2006.01) G11B 7/12 (2006.01) G11B 7/125 (2006.01) G11B 7/24 (2006.01) G11B 9/04 (2006.01) G11B 17/32 (2006.01) G11B 19/24 (2006.01) G11B 27/36 (2006.01) H04N 1/21 (2006.01) H04N 5/76 (2006.01)

Patent

CA 1115838

ABSTRACT Information is stored, using a relatively low-power light beam, by redistributing the material in a deformable film. In a disc configuration, positioning of the light beam is achieved by referencing to a previously re- corded track. In a document storage and retrieval system the document is scanned with the resultant scanned signal modulating the writing light beam producing a recorded track. This track is optically read with the resultant signal applied to a printer. For optimum utilization of the area, the re- cording and readout take place at constant velocity.

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