Inventor

BARBETTI JAMIE L

US5 patents

⚠️ This page may combine multiple inventors who share the name “BARBETTI JAMIE L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SUMMAGRAPHICS CORP

4 patents

US4831566AMay 16, 1989

Method and apparatus for calibration of a charge ratio digitizer

SUMMAGRAPHICS CORP36 citations88

US4788386ANov 29, 1988

Menu for a charge ratio digitizer

SUMMAGRAPHICS CORP22 citations78

US4689448AAug 25, 1987

Two-dimensional position coordinate determination device with U-shaped delay line

SUMMAGRAPHICS CORP15 citations72

US4996393AFeb 26, 1991

Digitizer tablet with split-current conductor array

SUMMAGRAPHICS CORP7 citations71

SNYDER EDWARD J

1 patent

US4734870AMar 29, 1988

Position coordinate determination device with diagonal delay line

SNYDER EDWARD J6 citations59