Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1981-11-02
1984-10-16
Curtis, Marshall M.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340728, 346110V, G09G 116
Patent
active
044778031
ABSTRACT:
A system for displaying a voltage wave wherein the wave and a delayed version of the wave are separately compared with a voltage ramp that is proportional to the position of an electron beam is changed between the point where the voltage ramp equals the voltage of the voltage wave and the point where the voltage ramp equals the voltage of the delayed version of the wave.
REFERENCES:
patent: 3474438 (1969-10-01), Lauher
patent: 4038668 (1977-07-01), Quarton
patent: 4212009 (1980-07-01), Adleman et al.
patent: 4307393 (1981-12-01), Hamada et al.
patent: 4311997 (1982-01-01), Madni
Curtis Marshall M.
Hewlett--Packard Company
Timbie Donald N.
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