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 recorded 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 recording and readout take place at constant velocity.
Type:
Grant
Filed:
September 16, 1980
Date of Patent:
October 18, 1983
Assignee:
Thomas Lee Siwecki
Inventors:
Hugh F. Frohbach, Robert E. Myers, Norman A. Peppers, Thomas L. Siwecki, Louis F. Schaefer