Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1986-03-10
1988-12-27
Caldwell, Sr., John W.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340762, 40452, G09G 304
Patent
active
047943904
ABSTRACT:
An alphanumeric display including an array of 42 electrically energizable, light-emitting or reflecting segments which, when selectively energized, are capable of forming legibly all numerals and upper and lower case alphabet letters and/or mathematical and punctuation symbols. The array disclosed is characterized by arrangement of the light-emitting or reflecting elements in closely nested relation to form a vertically disposed rectangular display. A solid state system employing the display means including light-emitting diodes and switching transistors is disclosed.
REFERENCES:
patent: 4323893 (1982-04-01), Ypsilantis et al.
Caldwell Sr. John W.
Jacobs Mark C.
Oberley Alvin
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