Data reading device

Details Data reading device Data reading device

1975-08-04

1977-08-09

Cook, Daryl W.

Registers

Calculators

Input-output calculator to indicator, printer, etc.

235 6111D, 235 6111E, G06K 500, G06K 708, G06K 710

Patent

active

040412792

ABSTRACT:
A device is provided for reading optical and magnetic data and providing signals representative thereof, said device including means for establishing a predetermined time or spacial reference between the optical and magnetic data sets. In one embodiment the optical and magnetic read heads are mounted in parallel alignment with the path of document travel to reduce timing errors due to skewing. In a second embodiment the heads are mounted side-by-side such that timing errors due to speed variations and thermal expansions are reduced.

REFERENCES:
patent: 3245697 (1966-04-01), Nugent
patent: 3612835 (1971-10-01), Andrews et al.
patent: 3740530 (1973-06-01), Hoffer et al.
patent: 3761683 (1973-09-01), Rogers
patent: 3764978 (1973-10-01), Tyburski et al.
patent: 3793600 (1974-02-01), Grossbard

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