Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1986-12-19
1989-04-11
Brigance, Gerald L.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340734, 324121R, G09G 300
Patent
active
048210307
ABSTRACT:
A computer-based digital oscilloscope includes a touchscreen mechanism for generating output signals indicating when an operator has touched the oscilloscope's screen and identifying a particular touch zone area that the operator has touched from among a plurality of touch zone areas of the screen. A computer which controls display of waveforms and other images on the screen, monitors the touchscreen output signals to determine whether the operator is touching a touch zone and to determine whether a portion of a particular image other than a waveform is displayed on the screen within boundaries of the touch zone. The computer generates a display of a first indicating image on the screen visually identifying the touch zone when not portion of any image other than a waveform is displayed on the screen within boundaries of said particular touch zone, and generates a display of a second indicating image on the screen visually identifying an image other than a waveform when any portion of the image is displayed on the screen within boundaries of the touch zone.
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Batson Brian
Diehm Brian D.
Bedell Daniel J.
Brigance Gerald L.
Fatahiyar Mahmond
Meza Peter J.
Tektronix Inc.
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