Method and apparatus for automatically detecting signal levels

Details Method and apparatus for automatically detecting signal levels Method and apparatus for automatically detecting signal levels

1981-06-08

1986-01-14

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Demand, excess, maximum or minimum

307351, 324102, G01R 1916, G01R 1900

Patent

active

045648042

ABSTRACT:
A method and apparatus for automatically detecting peak values of an applied unknown electrical signal employ a binary search technique in which a digital signal is converted to analog reference voltage levels one bit at a time from the most significant bit to the least significant bit to be compared with the unknown signal until finally a digital signal is produced which corresponds to a peak value. By selecting and controlling the comparator slope, both positive and negative peaks may be detected. The search for positive and negative peaks of signals occurring in one or more signal channels may be interleaved to decrease total detection time. From the detected values, a triggering voltage level may be arithmetically computed.

REFERENCES:
patent: 3781871 (1973-12-01), Mattern

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