Telegraphy – Systems – Position coordinate determination for writing
Patent
1996-02-09
1998-11-17
Shankar, Vijay
Telegraphy
Systems
Position coordinate determination for writing
178 1801, 178 1803, 178 1903, 178 2003, 345173, 345179, G08C 2100, G09G 500
Patent
active
058379479
ABSTRACT:
A digitizing panel responsive to a signal transmitted from a stylus for generating stylus position information is disclosed. The digitizing panel includes a coordinate generator for determining coordinate data indicative of a position of the stylus relative to the digitizing panel, a velocity calculator for determining a stylus velocity value based on the coordinate data, a mechanism for determining a filter bandwidth value based on the stylus velocity value, a filter for filtering the coordinate data wherein the filter has a predetermined bandwidth characteristic, and a mechanism for varying the predetermined bandwidth characteristic based on the filter bandwidth value. A method for filtering position data of a stylus associated with a digitizing panel is also disclosed.
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Bailey Wayne P.
Maginot Paul J.
Shankar Vijay
Symbios, Inc.
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