Telegraphy – Systems – Position coordinate determination for writing
Patent
1982-12-14
1985-02-19
Schreyer, Stafford D.
Telegraphy
Systems
Position coordinate determination for writing
33 1M, G01B 728, G08C 2100
Patent
active
045007497
ABSTRACT:
A digitizer for digitizing two and three dimensional geometrical forms. The digitizer uses extensible cords on pivotal reels. Information on cord extension and pivot angle is utilized to calculate stylus position in a desired coordinate system. Three dimensional objects rest upon a pivotal table which also provides digitizing information.
REFERENCES:
patent: 3516067 (1970-06-01), Cameron
patent: 3665608 (1972-05-01), Stockebrand
patent: 3832781 (1974-09-01), Flagge
Foster Frank H.
Schreyer Stafford D.
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