Telegraphy – Systems – Position coordinate determination for writing
Patent
1982-09-28
1984-04-24
Schreyer, Stafford D.
Telegraphy
Systems
Position coordinate determination for writing
33 25R, G08C 2100
Patent
active
044449976
ABSTRACT:
A device for generating electric signals representing the position coordinates of a stylus on a reference surface, characterized in that it comprises a signal generator (6) that is fixed with respect to the reference surface and comprising a movable part (5) which works in conjunction with at least two potentiometers generating the voltages representing the said coordinates, the stylus (7) being a stylus for pointing on the reference surface, and mechanical linkage means being provided between this stylus and the said movable part so as to obtain a scaling down effect on the movements given to the stylus when they reach the potentiometers.
REFERENCES:
patent: 3453388 (1969-07-01), Neville
patent: 3858324 (1975-01-01), Padowicz
patent: 3864515 (1975-02-01), Fee
IBM Technical Disclosure Bulletin vol. 10, No. 5, Oct. 1967, pp. 556 and 558.
IBM Technical Disclosure Bulletin vol. 18, No. 8, Jan. 1976, p. 2651.
IBM Technical Disclosure Bulletin vol. 19, No. 4, Sep. 1976, pp. 1435 and 1436.
IBM Technical Disclosure Bulletin vol. 21, No. 9, Feb. 1979, pp. 3481-3483.
IBM Technical Disclosure Bulletin vol. 21, No. 12, May 1979, pp. 5021, 5022.
Danish Adel
Danish Sherif
Polytel Computer Products Corp.
Schreyer Stafford D.
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