Registers – Coded record sensors – Particular sensor structure
Patent
1985-08-06
1987-07-14
Trafton, David L.
Registers
Coded record sensors
Particular sensor structure
235487, 346 76L, 369109, 430 13, G06K 710
Patent
active
046804560
ABSTRACT:
A data card having an optical, high resolution erasable or non-erasable laser recording material adhering to it. The strip of laser recording material has a capacity for recording at least 250,000 data bits represented by optically contrasting spots having a dimension of less than 25 microns. The optical contrast of the spots with respect to the surrounding field is at least two to one. The strip may have a preinscribed formatting pattern for positioning, timing, programming and related functions.
REFERENCES:
patent: 3351948 (1967-11-01), Bonn
patent: 3530441 (1970-09-01), Ovshinsky
patent: 3873813 (1975-03-01), Lahr
patent: 4190843 (1980-02-01), Spong
patent: 4197986 (1980-04-01), Nagata
patent: 4202491 (1980-05-01), Suzuki
patent: 4209804 (1980-06-01), Dil
patent: 4224666 (1980-09-01), Giraud
patent: 4300143 (1981-11-01), Bell
patent: 4304990 (1981-12-01), Atalla
patent: 4305081 (1981-12-01), Spong
patent: 4313188 (1981-12-01), Bartolini
patent: 4345261 (1982-08-01), Wilkinson
patent: 4360728 (1982-11-01), Drexler
patent: 4425570 (1984-01-01), Bell et al.
patent: 4493887 (1985-01-01), Peeters et al.
patent: 4527173 (1985-07-01), Gupta et al.
patent: 4544835 (1985-10-01), Drexler
Drexler Technology Corporation
Trafton David L.
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