Guidance system detector circuit

Details Guidance system detector circuit Guidance system detector circuit

1980-06-30

1982-10-12

Ruggiero, Joseph F.

Boots, shoes, and leggings

307236, 307358, 307494, 328 26, 363125, 364602, 364830, G06J 100, G06G 718, H03K 500

Patent

active

043542352

ABSTRACT:
A guidance system is disclosed which includes a combined synchronous detector, amplifier, and low pass filter. The detector circuit provides a binary signal which is true during negative half cycles of an input signal and false during positive half cycles. The positive and negative half cycles are applied through a switch controlled by the binary signal to a differential amplifier. A first integrator is connected to the first input of the differential amplifier and a second integrator is connected between the output and a second input of the differential amplifier. The direct current level of the output of the differential amplifier rises as the amplitude of the input signal increases to keep the input voltages of the differential amplifier equal. The output voltage of the differential amplifier is therefore proportional to the amplitude of a sensor signal.

REFERENCES:
patent: 3697782 (1972-10-01), Matouka
patent: 3760255 (1973-09-01), Grodinsky
patent: 4013955 (1977-03-01), Wagner
patent: 4109308 (1978-08-01), Rodel
patent: 4277753 (1981-07-01), Faulkner

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