Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1978-06-26
1981-04-14
Curtis, Marshall M.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340765, 340790, G09F 932
Patent
active
042622913
ABSTRACT:
The invention provides apparatus for visibly displaying Arabic numerals or symbols e.g. arithmetic symbols for use in devices such as calculators, digital clocks etc. The apparatus comprises a decoder adapted to convert an input signal (e.g. a BCD signal) representing a numeral or symbol in one system of numerals and symbols of the European System (as herein defined), to an output signal representing the corresponding Arabic language numeral or symbol, the output signal being used to illuminate or otherwise make visible a dot or a line segment of a 13, 14, 15 or 16 line segment display, preferably a liquid crystal display, to make visible the Arabic language numeral or symbol. For multiple digit numerals, an array of line segment displays is provided, the decoder being arranged to obey the rules in the Arabic language system concerning the location of arithmetic and quantity symbols with respect to the numeral when activating the various line segment displays.
REFERENCES:
patent: 3327153 (1967-06-01), Bickmire et al.
patent: 3573532 (1971-04-01), Boucher
patent: 3863249 (1975-01-01), Olah
patent: 4122444 (1978-10-01), Kitajima et al.
Morse Peter L. R.
Zammit Christopher C.
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