Automatic touch screen calibration method

Details Automatic touch screen calibration method Automatic touch screen calibration method

1985-04-26

1987-12-01

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340719, 340724, 340571, 178 18, G09G 300

Patent

active

047107588

ABSTRACT:
A method for automatically calibrating a touch screen used in conjunction with a graphic display is executed prior to every interactive session. Three points, defining perpendicular axes, are displayed and an operator is instructed to touch the touch screen at each of the points in succession. Coordinates for the three points output by the touch screen are checked for reasonableness and perpendicularity. If these checks are passed, a coordinate translation matrix is generated for converting touch screen coordinates into display coordinates.

REFERENCES:
patent: 3668654 (1972-01-01), Doersam, Jr.
patent: 3873770 (1975-03-01), Ioannou
patent: 3875331 (1975-04-01), Hasenbalg
patent: 3995269 (1976-11-01), Schumacher
patent: 3997891 (1976-12-01), Iwamura et al.
patent: 4009338 (1977-02-01), Dym et al.
patent: 4267443 (1981-05-01), Carroll et al.
patent: 4286289 (1981-08-01), Ottesen et al.
patent: 4295135 (1981-10-01), Sukonick
patent: 4305135 (1981-12-01), Dahl et al.
patent: 4317005 (1982-02-01), de Bruyne
patent: 4346376 (1982-08-01), Mallos
patent: 4384201 (1983-05-01), Carroll et al.
patent: 4386232 (1983-05-01), Slater
patent: 4386346 (1983-05-01), Levine
patent: 4389711 (1983-06-01), Hotta et al.
patent: 4396977 (1983-08-01), Slater et al.
patent: 4413314 (1983-11-01), Slater et al.
patent: 4424572 (1984-01-01), Lorig et al.
patent: 4432360 (1984-02-01), Mumford et al.
patent: 4442317 (1984-04-01), Jandrell
patent: 4444998 (1984-04-01), House
patent: 4476463 (1984-10-01), Ng et al.
patent: 4514688 (1985-04-01), Whetstone
patent: 4553091 (1985-11-01), Bristol
patent: 4577057 (1986-03-01), Blesser

Affiliated with

Also associated with

Rating

Automatic touch screen calibration 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 Automatic touch screen calibration method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic touch screen calibration method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1933908