PCM tone receiver using optimum statistical technique

Details PCM tone receiver using optimum statistical technique PCM tone receiver using optimum statistical technique

1974-07-22

1976-06-01

Malzahn, David H.

Registers

Transfer mechanism

Traveling pawl

179 15BY, 2351501, 2351513, 325321, G06F 1536, H04Q 1100

Patent

active

039611671

ABSTRACT:
This invention relates to signal detecting and in particular to apparatus and a method for detecting one or more audio frequencies (tones) contained in a Pulse-Coded Modulation (PCM) signal.

REFERENCES:
patent: 3710028 (1973-01-01), Pitroda
patent: 3803390 (1974-04-01), Schaepman
patent: 3824471 (1974-07-01), Mills
Modestino & Davisson "Adaptive Detection of Weak Signals in Statistically Undefined Noise Backgrounds" Symposium on Computer Processing in Communications Polytechnic Institute of Brooklyn, Apr. 8-10, 1969, pp. 629-651.

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