Sampled data amplitude detector as for an AGC multiplier

Details Sampled data amplitude detector as for an AGC multiplier Sampled data amplitude detector as for an AGC multiplier

1985-09-30

1988-11-15

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 27, 307356, 375 98, H04N 552, H04N 944

Patent

active

047853522

ABSTRACT:
A sampled data signal amplitude detector for use in PLL's, for example, includes an absolute value detector to generate the magnitudes of the signal samples to be measured. The magnitudes of pairs of successive samples are compared and the larger magnitude sample of each pair is provided to an averager. The averager, averages a predetermined number of the larger magnitude samples and outputs the average as the amplitude of the applied signal.

REFERENCES:
patent: 4344021 (1982-08-01), Johnston
patent: 4434439 (1984-02-01), Steckler et al.
patent: 4491862 (1985-01-01), Flamm
patent: 4510521 (1985-04-01), Ruprecht et al.

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