Cursor interface for waveform displays

Details Cursor interface for waveform displays Cursor interface for waveform displays

1987-03-24

1988-06-14

Birmiel, Howard A.

Communications: electrical

Land vehicle alarms or indicators

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

340721, 340722, 340734, 324121R, 324103P, 364487, G09G 302, G01R 1330

Patent

active

047515040

ABSTRACT:
A cursor interface for a waveform display provides for movement of a waveform relative to a first cursor. When the first cursor overlies a desired point on the waveform, the cursor is locked to the waveform by transforming the cursor coordinates from display coordinates to waveform coordinates. The waveform may then be moved together with the first cursor relative to a second cursor. When the second cursor overlies another desired point on the waveform, a measurement value is displayed indicating the difference in positions on the waveform of the cursors. The cursors may be centered independently, and when locked to the waveform the result is to correspondingly move the waveform.

REFERENCES:
patent: 4476432 (1984-10-01), Olson
patent: 4628254 (1986-12-01), Bristol
patent: 4686523 (1987-08-01), Bristol

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