Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1988-11-02
1992-04-28
Weldon, Ulysses
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340784, 340767, 359 54, G09G 318, G09G 336
Patent
active
051092190
ABSTRACT:
The viewing angle of a liquid crystal display may be controlled by storing a digital code which represents the viewing angle, and converting the stored digital code to an analog voltage which is applied to the bias input of the liquid crystal display. To adjust the viewing angle, a new digital code is stored using keypad input. The invention is particularly suitable for microprocessor controlled displays, and eliminates the need for a hinged or pivoted display, or a viewing angle adjustment knob.
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Ademco, Ademco's Alpha Vista, 1988.
Kastan Peter
Lamb, Jr Donald S.
Fatahi-yar M.
Moose Products, Inc.
Weldon Ulysses
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