Communications: electrical – Continuously variable indicating – With meter reading
Patent
1997-05-14
1998-11-10
Horabik, Michael
Communications: electrical
Continuously variable indicating
With meter reading
340580, 340601, 34082531, 7317026, G08B 2300, G08C 1506
Patent
active
058350250
ABSTRACT:
A data acquisition apparatus that includes a recorder device of an event's ime and date signified by the opening of an external trigger switching circuit in combination with a complimentary interrogator device for collecting data from the recorder device. The recorder device's components comprise a battery powered source with a power regulator, a processor, a dip-switch identifier, a programmable read only memory, a clock/ calender with random access memory, a timing/control subcircuit interface that connects to the external trigger switching circuit(s) and an output interface port for data transmissions with the interrogator device. The recorder's timing/control subcircuit interface extends battery life by sensing and transmitting electrical pulses through each external trigger switching circuit. The interrogator device is portable and has multiple functional capabilities. This interrogator comprise an regulated battery power source, a processor, a programmable ROM, an event storage RAM, a clock/calender subcircuit, an optional liquid crystal display display, and an input/output interface port to communicate with the recorder device.
REFERENCES:
patent: 5446448 (1995-08-01), Zufelt et al.
patent: 5602536 (1997-02-01), Henderson et al.
Clark Charles H.
Harjes, Jr. Henry H.
Zufelt Jon E.
Edwards, Jr. Timothy
Horabik Michael
Marsh Luther A.
U.S. Army Corps of Engineers as represented by the Secretary of
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