Signature authentication system

Details Signature authentication system Signature authentication system

1974-10-09

1976-05-04

Boudreau, Leo H.

Communications: electrical

Digital comparator systems

235 617B, 235 92TF, 340149A, G06K 900

Patent

active

039551784

ABSTRACT:
A system is disclosed for authenticating a signature on the basis of its execution. Generally, the system senses the speed of the tip of a writing instrument as a criterion for developing an identification or characterization of the signature. As disclosed, a tablet is provided defining a surface which is scored orthogonally to create impulses (by pen contact) that relate to the speed of the tip of a pen. The impulses are sensed as an electrical signal which is processed to derive a characterization of the signature. In one disclosed embodiment, signatures are characterized by the number of impulses developed during a substantial portion of the signing interval. In another disclosed embodiment, signatures are characterized by the time required (in the course of executing a signature) to generate a predetermined number of impulses. In still another embodiment, a system is disclosed to include apparatus for deriving a developed code identification from the signature impulses along with structure for performing a comparison between "test" and "standard" characterizations. Each of the systems as disclosed include means for manifesting authenticity characteristics indicating the likely authenticity of a signature.

REFERENCES:
patent: 3618019 (1971-11-01), Nemirovsky et al.
patent: 3699517 (1972-10-01), Dyche
patent: 3818133 (1974-06-01), Cotter
patent: 3875331 (1975-04-01), Hasenbalg

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