Method and apparatus for increasing receiver immunity to interfe

Details Method and apparatus for increasing receiver immunity to interfe Method and apparatus for increasing receiver immunity to interfe

1997-05-09

1999-07-27

Pascal, Leslie

Telecommunications

Receiver or analog modulated signal frequency converter

With protection circuit for receiver circuit

4552262, 4552501, 455287, H04B 116

Patent

active

059306920

ABSTRACT:
The method and apparatus of the present invention improve the immunity to interference of a radio receiver. The power level of a received signal is detected. If the power level meets or exceeds a predetermined power threshold, the low noise amplifier is by-passed, thus increasing the intercept point of the receiver components.
Alternative embodiments include the use of an RF power detector to control the front-end gain as a function of jammer power. In lieu of a switchable RF gain block, several methods of continuous gain control are proposed. Continuous gain control allows the interference suppression and sensitivity of the receiver to be adjusted at lower signal levels than the switchable gain block.

REFERENCES:
patent: 3587017 (1971-06-01), Kurusu
patent: 4525863 (1985-07-01), Stites
patent: 4718114 (1988-01-01), Brandt
patent: 4853972 (1989-08-01), Ueda et al.
patent: 5082740 (1992-01-01), Schsilling
patent: 5193210 (1993-03-01), Nicholas et al.
patent: 5230096 (1993-07-01), Davies et al.
patent: 5276912 (1994-01-01), Siwiak et al.
patent: 5321847 (1994-06-01), Johnson
patent: 5339454 (1994-08-01), Kuo et al.
patent: 5390345 (1995-02-01), Wada et al.
patent: 5507023 (1996-04-01), Suganuma
patent: 5513386 (1996-04-01), Ogino et al.
patent: 5564094 (1996-10-01), Anderson et al.

Affiliated with

Also associated with

Rating

Method and apparatus for increasing receiver immunity to interfe does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for increasing receiver immunity to interfe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for increasing receiver immunity to interfe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-892071