Coordinate input apparatus

Details Coordinate input apparatus Coordinate input apparatus

1986-12-29

1988-04-26

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

G08C 2100

Patent

active

047406607

ABSTRACT:
In a coordinate input apparatus, a compensation loop is installed to surround a main loop, each main loop is scanned thereby rough region where a coordinate indicating tool exists can be detected, compensation value stored in a first memory means is referred corresponding to the detected rough region and current value to be transmitted to the compensation loop is adjusted thereby shift of the polarity inversion position of the magnetic field intensity is suppressed and interpolation value in the rough region is calculated, and correction value stored in a second memory means is drawn for the interpolation value.

REFERENCES:
patent: 3732369 (1973-05-01), Cotter
patent: 3904822 (1975-09-01), Kamm et al.
patent: 4054746 (1977-10-01), Kamm
patent: 4582955 (1986-04-01), Blesser

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-821133