Zero intermediate frequency noise blanker

Details Zero intermediate frequency noise blanker Zero intermediate frequency noise blanker

1991-02-04

1993-05-18

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Squelch

455223, 455225, 455324, H04B 116

Patent

active

052128270

ABSTRACT:
An essentially zero intermediate frequency receiver (100) for recovering an information signal from a received signal (110), which includes means for blanking noise signals which may otherwise deteriorate performance, comprises a receiver (10) for recovering the information signal and a noise blanker (28). The receiver (28) comprises at least one conversion mixer (32B) for operating on the received signal (110) to provide an essentially baseband signal (125B), at least one delay filter (40B) coupled to the conversion mixer (32B) for producing a delayed essentially baseband signal, and at least one blanker switch (S1-S4) for operating on the delayed essentially baseband signal to temporarily prevent recovery of the information signal in response to a control signal (58). To provide the control signal (58), the noise blanker (28) is coupled to the receiver (10) for operating on either the essentially baseband signal (125B) or the received signal (110) as a noise blanker input signal.

REFERENCES:
patent: 4479251 (1984-10-01), Dawson
patent: 4653117 (1987-03-01), Heck
patent: 4654885 (1987-03-01), Meszko et al.
patent: 4837853 (1989-06-01), Heck

Affiliated with

Also associated with

Rating

Zero intermediate frequency noise blanker 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 intermediate frequency noise blanker, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zero intermediate frequency noise blanker will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-810393