Zero-IF receiver wih feedback loop for suppressing interfering s

Details Zero-IF receiver wih feedback loop for suppressing interfering s Zero-IF receiver wih feedback loop for suppressing interfering s

1986-04-21

1988-01-05

Griffin, Robert L.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency or phase modulation

455302, 455306, 455314, 455324, 329124, H04B 116

Patent

active

047181133

ABSTRACT:
A working on the zero IF principle is disclosed which contains a feedback circuit instead of a preselector for suppressing interfering signals. The interfering signals contained in the incoming signal (F.sub.E) are separated from the useful signal by filters in the baseband. They are then reconverted to the RF value, amplified, and substracted from the incoming signal (F.sub.E) by a subtracter (S1). In the steady state, the output of the subtracter (S1) provides the useful signal, which is converted into the baseband and then fed to a signal processor (SV).

REFERENCES:
patent: 3961262 (1976-06-01), Gassman
patent: 4476585 (1984-10-01), Reed
patent: 4599743 (1986-07-01), Reed

Affiliated with

Also associated with

Rating

Zero-IF receiver wih feedback loop for suppressing interfering s does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Zero-IF receiver wih feedback loop for suppressing interfering s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zero-IF receiver wih feedback loop for suppressing interfering s will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-12867