Stylus for handwriting identification

Details Stylus for handwriting identification Stylus for handwriting identification

1991-05-23

1992-05-05

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

7386268, 382 3, G08C 2100

Patent

active

051110040

ABSTRACT:
A stylus formed of a shaft containing pressure sensors and useful in signature verification and in identification of individuals. The pressure sensors are imbedded in and integral with the shaft of the stylus at a predetermined distance from the tip used for writing. The sensors are preferably disposed in an annulus and located in each of four quadrants surrounding the shaft enabling three-axis pressure detection.

REFERENCES:
patent: Re29765 (1978-09-01), Crane et al.
patent: 3891555 (1975-06-01), Bennett et al.
patent: 3906444 (1975-09-01), Crane et al.
patent: 3986403 (1976-10-01), Hurd et al.
patent: 4078226 (1978-03-01), EerNisse et al.
patent: 4111052 (1978-09-01), Sniderman
patent: 4513437 (1985-04-01), Chainer et al.
patent: 4646351 (1987-02-01), Asbo et al.
patent: 4786764 (1988-11-01), Padula et al.
patent: 4793193 (1988-12-01), Borgudd
patent: 4896543 (1990-01-01), Gullman
The abstract of an article by De Bruyne and Messmer.
The abstract of an article by Yonezawa.

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