Multiple card recording system

Details Multiple card recording system Multiple card recording system

G - Physics

06

K

352/32.2, 352/24

G06K 1/12 (2006.01) G11B 5/86 (2006.01) G11B 7/0025 (2006.01) G11B 7/0033 (2006.01) G11B 7/08 (2006.01) G11B 7/28 (2006.01) G11B 27/031 (2006.01)

Patent

CA 1292312

Abstract of the Disclosure A data card recording system having a rotatable drum for supporting a plurality of data cards on its circumferential surface. A laser light source emits a beam which is modulated in response to data and directed to the cards on the rotating drum. The beam produces data spots in a plurality of parallel tracks aligned in the direction of drum rotation. The focussing optics may be moved transversely to record in adjacent tracks. A data segment accessed from a data source and stored in a register of a microprocessor is recorded on a track on each card on the drum. A data control, controlling modulation rate, and a position detector unit are pro- vided to synchronize the light beam modulation with the drum rotation rate. Drums and optical system embodiments are described for both reflectively and transmissively read data cards.

553191

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