Communications: electrical – Digital comparator systems
Patent
1978-03-24
1979-03-06
Boudreau, Leo H.
Communications: electrical
Digital comparator systems
73141A, 73432R, G06K 900, G01L 516
Patent
active
041433572
ABSTRACT:
A transducing device converts to representative electrical signals those force variations which are produced by the act of a person writing a signature. In the device, a signature writing surface is provided, and is part of an arm attached by resilient means to a support member which in turn is secured to a base. A magnetic core is connected to the underside of the signature writing surface and coacts with a plurality of coils mounted on the base to provide a motion transducer which, with associated circuitry, generates an electrical signal which varies in accordance with the varying forces applied to the signature writing surface as a signature is written thereon. Stop rods secured to the base limit the extent of travel in one direction of the signature writing surface.
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patent: 3563097 (1971-02-01), Roggenstein et al.
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patent: 3956734 (1976-05-01), Radcliffe, Jr.
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patent: 4008457 (1977-02-01), Radcliffe, Jr.
Baver Donald W.
Granzow Robert H.
Horst William R.
Paganini Bruno J.
Boudreau Leo H.
Cavender J. T.
NCR Corporation
Sessler Jr. Albert L.
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