Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1990-10-04
1991-09-03
Brier, Jeffery A.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340752, 340760, 34081513, G09G 304
Patent
active
050458418
ABSTRACT:
An electronic thumbwheel switch includes an up/down counter for storing a thumbwheel count value. A display device is coupled to the up/down counter for displaying the count value. A manual input switch is coupled to the up/down counter for selecting a desired count value to be displayed on the display device. An interface circuit is coupled to the up/down counter and includes a data bus buffer for developing an output representing the stored numeric value and a logic circuit and data bus for loading a numeric value received from an external source into the up/down counter for display on the display device.
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