Dual stripe optical data card

Details Dual stripe optical data card Dual stripe optical data card

H - Electricity

04

N

352/57

H04N 5/76 (2006.01) G06F 3/00 (2006.01) G06K 7/12 (2006.01) G06K 19/06 (2006.01) G06F 15/30 (1990.01)

Patent

CA 1283205

Abstract 6649-37 Dual Stripe optical Data Card An optical data card (11) having a pair of spaced apart information strips (15 and 17). One strip (17) has pre-recorded programs or data and is always a non-erasable strip. This strip may be either a reflec- tive direct-read-after-write non-erasable type or may be a read-only optical memory (ROOM) strip. Another strip (15) serves as a temporary, scratchpad or cache memory and is either a reflective DRAW strip of the erasable type or a DRAW non-erasable strip which is at least partially blank, with sufficient space for temporary memory needs over an extended period of time.

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