Graphic tablet and method

Details Graphic tablet and method Graphic tablet and method

1984-07-16

1986-10-07

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

33 1M, G08C 2100

Patent

active

046161066

ABSTRACT:
A writing tablet system is disclosed incorporating a plurality of parallel conductors imbedded beneath the surface thereof arranged in two groups in orthogonal relationship with respect to each other. The conductors form an antenna grid for receiving radiated electric signals generated remote from the tablet and supplied to a pen, or cursor, acting as a signal radiating means. The radiated signals generate signals of varying amplitude in the respective grid conductors. Each of the conductors in each of the X and Y directions are interconnected at one end thereof by resistances. The opposite ends of each of the conductors are either connected to a signal sensing circuit or are left unconnected. The unconnected conductors, or minor conductors, are arranged between the connected (or major) conductors such that radiated signals received by the antenna grid are received by all conductors but only those signals appearing on the major conductors are utilized in the determination of pen position.

REFERENCES:
patent: 4492819 (1985-01-01), Rodgers et al.

Affiliated with

Also associated with

Rating

Graphic tablet and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-644082