Frequency division, energy comparison signal processing system

Details Frequency division, energy comparison signal processing system Frequency division, energy comparison signal processing system

1990-11-09

1992-06-02

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

73648, 324 77E, 364484, 381 45, 382 17, 382 29, G06K 900, G10L 500

Patent

active

051194325

ABSTRACT:
A frequency division, energy comparison processing system which decomposes a wide-band signal into a plurality of narrow frequency band components, generates the energy envelope of each of those narrow band components, and compares a function of each energy envelope with the same function of each of the other energy envelopes to obtain a pattern of the function comparisons indicative of at least one of the sources contributing to the wide-band signal.

REFERENCES:
patent: 3509534 (1970-04-01), Partin
patent: 3731188 (1973-05-01), Smith
patent: 4718097 (1988-01-01), Uenoyama

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