Registers – Platform operated – Platform actuated traffic counters
Patent
1978-03-31
1979-12-25
Thesz, Joseph M.
Registers
Platform operated
Platform actuated traffic counters
235 92FP, 324186, 58 24A, G07C 102
Patent
active
041807243
ABSTRACT:
A solid state digital running time indicator is energized from the same power source supplying energy to a monitored event. A device for detecting when the power is on initiates a signal to timing circuitry for generating clock pulse signals and control timing signals. In response to an initial timing signal, a memory element reads the information from memory into a counter chain. The clock pulse signals are applied to the counter chain for counting up in predetermined increments of time from the number that is initially loaded into the counter chain from the memory element. Control circuitry writes the contents of the counter chain into the memory element after each predetermined increment of time. The total accumulated running time present in the counter chain is applied to drive and display circuitry for providing a visual indication of the running time of the event being monitored.
REFERENCES:
patent: 3793512 (1974-02-01), Lorenzen
patent: 3878371 (1975-04-01), Burke
patent: 3988575 (1976-10-01), Guimier et al.
patent: 4031363 (1977-06-01), Freeman et al.
patent: 4049951 (1977-09-01), Baty et al.
patent: 4107516 (1978-08-01), Huidsten
Councilman Clyde L.
Shearer Harry D.
E-Systems Inc.
Thesz Joseph M.
Wilder Robert V.
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