Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1981-07-15
1984-10-23
Curtis, Marshall M.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340749, 340791, G09G 116
Patent
active
044791194
ABSTRACT:
A CRT display device which includes a display control unit is provided. In accordance with the present invention, the frequency of a pulse train supplied to a shift register for producing a video signal from a dot pattern signal is adjusted or controlled in response to a mode selection signal. Therefore, a part of the characters may be displayed as compressed thereby increasing the density of displayed information without impairing clear observability.
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Curtis Marshall M.
Ricoh & Company, Ltd.
Shoup Guy W.
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