Electrical pulse counters – pulse dividers – or shift registers: c – Applications – Determining machine or apparatus operating time or...
Patent
1984-04-05
1986-09-16
Miller, Stanley D.
Electrical pulse counters, pulse dividers, or shift registers: c
Applications
Determining machine or apparatus operating time or...
377 20, G07C 502
Patent
active
046126554
ABSTRACT:
A driving time alarm for a vehicle comprises a recess time setting counter for counting clock pulses during the time when the vehicle is not under running; and a driving time limit setting counter which counts during the time when said vehicle is under running and is reset by the count-up of said recess time setting counter, whereby an alarm is given when said driving time limit setting counter comes to a count-up state.
REFERENCES:
patent: 4031363 (1977-06-01), Freeman et al.
patent: 4338512 (1982-07-01), Ludwig
patent: 4404641 (1983-09-01), Bazarnik
patent: 4502122 (1985-02-01), Yanagishima
Miller Stanley D.
Ohralik K.
Smolowitz Martin
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