Coordinate-data input device for CRT display having cursor trave

Details Coordinate-data input device for CRT display having cursor trave Coordinate-data input device for CRT display having cursor trave

1985-05-29

1987-10-06

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

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

340706, 340709, 178 18, G09G 100

Patent

active

046986260

ABSTRACT:
An apparatus for entering coordinate data for moving a cursor ona screen of a CRT display in response to movements of a manually movable unit on a planar board, comprising a detecting device disposed on the manually movable unit to detect amounts of movement of the manually movable unit in X- and Y-axis directions on the planar board, a magnification selector for selecting one of plural values of magnification of the detected amounts of movement of the movable unit, and a data processor for obtaining distances of movements of the cursor on the display screen, by multiplying the detected amounts of movement of the movable unit by the selected value of magnification.

REFERENCES:
patent: 4122438 (1978-10-01), Bird
patent: 4364035 (1982-12-01), Kirsch
patent: 4369439 (1983-01-01), Broos
patent: 4552360 (1985-11-01), Bromley et al.
patent: 4580006 (1986-04-01), Hull
IBM Technical Disclosure Bulletin, "Mouse/Keyboard Concept Incorporating Unique Devices for Controlling CRT Display Cursors" vol. 27, No. 10B Mar. 1985.
Electronic Fun with Computers & Games, by Ken Uston pp. 28-103 Nov. 1983.

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