Balanced AC correlator system

Details Balanced AC correlator system Balanced AC correlator system

1976-11-19

1978-08-29

Gruber, Felix D.

Boots, shoes, and leggings

325476, 328160, 364574, G06G 719, H04B 112

Patent

active

041108337

ABSTRACT:
A system having a pair of input signals, one of which is modulated and transformed into a pair of signals phased 180.degree. apart. These signals are acted on by a FET correlator where the second input signal controls the FET gate. Correlator output is amplified and a blocking capacitor removes DC offset, a synchronous switch operated at the modulated frequency converts the remaining AC to DC which is amplified to the output.

REFERENCES:
patent: 2914762 (1959-11-01), Gross et al.
patent: 3737686 (1973-06-01), Swanekamp et al.
patent: 3867620 (1975-02-01), Coor
patent: 3982114 (1976-09-01), Hook

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