Coordinate system input device providing registration calibratio

Details Coordinate system input device providing registration calibratio Coordinate system input device providing registration calibratio

1987-09-24

1990-02-20

Brigance, Gerald

Communications: electrical

Land vehicle alarms or indicators

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

340712, 340724, G09G 116

Patent

active

049030124

ABSTRACT:
A coordinate system input device provides automatic calibration between coordinates detected and display coordinates and also provides a mouse function wherein movement of an object adjacent a display screen acts to move a displayed cursor an amount proportional to the movement of the object adjacent the display screen. In its automatic calibration function, the coordinate input device compares the coordinates of a displayed test cursor with the coordinates of a detected object adjacent the display screen and calculates a correction amount to correct subsequent detected coordinate positions. In its mouse function, the coordinate input device detects movement of an object adjacent the display screen and amplifies this movement to control a cursor displayed on the display screen. When the object is removed from the display screen, the procedure to be implemented, as indicated by the position of the cursor, is automatically initiated.

REFERENCES:
patent: 4464655 (1984-08-01), Bird
patent: 4523188 (1985-06-01), Huber
patent: 4698626 (1987-10-01), Sato et al.
patent: 4710758 (1987-12-01), Mussler

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