Registers – Coded record sensors – Particular sensor structure
Patent
1981-02-27
1982-11-23
Yusko, Donald J.
Registers
Coded record sensors
Particular sensor structure
346 76L, 235493, G01D 1502, G11B 2330, G06K 500
Patent
active
043607284
ABSTRACT:
A data card having a pair of spaced apart information records. One record is a strip of high resolution reflective laser recording material, such as a metallic film. The other strip is a magnetic recording material. The strip of laser recording material has a capacity for recording at least 250,000 bits represented by pits having a dimension less than 50 microns.
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Drexler Technology Corporation
Yusko Donald J.
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