Writing device for use with a pen-based data input system

Details Writing device for use with a pen-based data input system Writing device for use with a pen-based data input system

1997-03-25

2000-05-23

Shankar, Vijay

Telegraphy

Systems

Position coordinate determination for writing

178 1901, 178 1903, 178 1904, 178 1905, G08C 2100

Patent

active

060668113

ABSTRACT:
An improved writing device containing a stylus comprised of a self-lubricating material such as lignum vitae. Lignum vitae is a natural, wood product containing a waxy substance that reduces friction at the tip of the stylus as the tip is moved over a surface. A writing device having a stylus fabricated of lignum vitae is substantially less prone to scratch, mar or otherwise damage the surface of a pen-based data input instrument.

REFERENCES:
patent: 4052887 (1977-10-01), Sheridan et al.
patent: 5134689 (1992-07-01), Murakami
patent: 5549394 (1996-08-01), Nowak
patent: 5627348 (1997-05-01), Berkson et al.

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