Low offset AC correlator

Details Low offset AC correlator Low offset AC correlator

1976-11-10

1978-05-23

Gruber, Felix D.

Boots, shoes, and leggings

328160, G06G 719

Patent

active

040914534

ABSTRACT:
A low offset AC correlator avoids DC offset and low frequency noise by frequency operating the correlation signal so that low noise, low level AC amplification can be substituted for DC amplification. Subsequently, the high level AC signal is demodulated to a DC level.

REFERENCES:
patent: 2608648 (1952-08-01), Magnuski
patent: 3119067 (1964-01-01), Wohlenberg et al.
patent: 3614407 (1971-10-01), Fournier
patent: 3867620 (1975-02-01), Coor
patent: 4006353 (1977-02-01), Pierce

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