Graphical input terminal

Telegraphy – Systems – Position coordinate determination for writing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G08C 2100

Patent

active

039595854

ABSTRACT:
A graphical input terminal includes a pair of resistive sheets separated by an air gap. An energizing voltage is alternately applied to each sheet while an output voltage representative of the position of contact between the sheets caused by the pressure of a stylus, is derived from the nonenergized sheet. A circuit for indicating stylus up/stylus down status without undue interference from capacitively induced voltages is also provided.

REFERENCES:
patent: 2975235 (1961-03-01), Leitner et al.
patent: 3005050 (1961-10-01), Koenig, Jr.
patent: 3662105 (1972-05-01), Hurst et al.
patent: 3798370 (1974-03-01), Hurst
patent: 3885097 (1975-05-01), Pobgee

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Graphical input terminal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Graphical input terminal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Graphical input terminal will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-907205

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.