Trendgraph display system

Details Trendgraph display system Trendgraph display system

1993-02-18

1994-11-15

Weldon, Ulysses

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

345131, 345134, G09G 302

Patent

active

053652541

ABSTRACT:
A trendgraph display system for displaying a trendgraph with the X axis being the time axis, representing time-serially data collected at a specified period in a display area. The system includes a cursor unit for displaying a cursorline movable in the direction of the X axis in the display area, a touch sensor unit for specifying by a touch a point on the X axis to which the cursorline is to be moved,a unit for moving the cursorline to the specified point, a unit for detecting a point of intersection where the cursorline intersects the displayed trendgraph in the display area, a unit for selecting a display scale and a scale alteration direction of the displayed trendgraph and a display control unit for displaying the trendgraph with the point of intersection at the center of the display area at the selected alteration direction at the selected display scale.

REFERENCES:
patent: 4121204 (1978-10-01), Welch et al.
patent: 4307393 (1981-12-01), Hamada et al.
patent: 4310839 (1982-01-01), Schwendt
patent: 4386347 (1983-05-01), Cutler
patent: 4751504 (1988-06-01), Slavin
patent: 4755811 (1988-07-01), Slavin
patent: 4847785 (1989-07-01), Stephens

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