Telegraphy – Systems – Position coordinate determination for writing
Patent
1990-11-21
1991-10-29
Schreyer, Stafford D.
Telegraphy
Systems
Position coordinate determination for writing
178 19, G08C 2100
Patent
active
050618288
ABSTRACT:
A digitizer stylus with Z-axis side pressure control, comprising a nib front end resiliently mounted on the stylus housing and cooperating with a Hall-effect transducer such that side pressure on the nib, used like a calligraphic pen or brush, modifies the Hall-effect output, which can be used to modify an additional parameter, such as line width, of a drawing.
REFERENCES:
patent: 4580007 (1986-04-01), Searby et al.
patent: 5004871 (1991-04-01), Purcell
Schreyer Stafford D.
Summagraphics Corporation
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