Research/Patents/US 4586045
US 4586045

Assignee

Filed

Oct 5, 1970

Granted

Apr 29, 1986

Location

DEWITT NY US

Abstract

An IF side-lobe canceller having a main channel and a pair of auxiliary channels in which the signal from the main channel is mixed with a stable local oscillator and fed to a subtractor, while in each of the pair of auxiliary channels the signal from an omnidirectional antenna is fed to a mixer and then to the subtractor. The subtractor's output is fed to mixers together with the signals from the omnidirectional antennas. The outputs of these mixers are fed to additional mixers together with the mixed outputs of the stable local oscillator and a second oscillator.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Oct 2, 1981

Rescinded

Sep 10, 1985

Duration

3 years, 11 months

Inventor

  • 1JOHN W. DOWNIE

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records