Method and apparatus for recording a signature

Details Method and apparatus for recording a signature Method and apparatus for recording a signature

1974-06-20

1976-05-25

Boudreau, Leo H.

Communications: electrical

Digital comparator systems

340347AD, G06K 900

Patent

active

039597695

ABSTRACT:
The pressure exerted while writing a signature is transduced to an electrical analog signal which is periodically converted to a binary coded number representing the average amplitude of the pressure between periodic samplings.

REFERENCES:
patent: 3007149 (1961-10-01), Brown
patent: 3133266 (1964-05-01), Frishkopf
patent: 3349391 (1967-10-01), Kimura
patent: 3579186 (1971-05-01), Johnson et al.
patent: 3618019 (1971-11-01), Nemirovsky et al.
patent: 3781869 (1973-12-01), Sudnick et al.
patent: 3824588 (1974-07-01), Vermillion
Analog-Digital Conversion Handbook, Analog Devices, Inc., 1972, pp. I-87-I-88.

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