Method and apparatus for regulating a single sideband up convert

Details Method and apparatus for regulating a single sideband up convert Method and apparatus for regulating a single sideband up convert

1987-04-22

1989-07-18

Griffin, Robert L.

Telecommunications

Transmitter

Amplitude modulation

455118, 455186, 455323, H04B 116

Patent

active

048500356

ABSTRACT:
To regulate a single sideband up converter having a pair of mixer stages (M1, M2), each mixer stage receives control signals to compensate for spurious signals of the mixer components. Part of the radio frequency output signal (RF') from the converter is fed to a down converter (M3). From the resulting down-converted signal, the original intermediate frequency signal (IF) as well as the first harmonic thereof are filtered out as a measure of oscillator and sideband suppression. From these filtered-out signals, control signals for the mixer stages (M1, M2) are obtained.

REFERENCES:
patent: 4293825 (1981-10-01), Cerra
patent: 4346479 (1982-08-01), Weber
patent: 4414686 (1983-11-01), Lenz
patent: 4475242 (1984-10-01), Rafal et al.
patent: 4511864 (1985-04-01), de Riviere
patent: 4593411 (1986-06-01), Schiller
patent: 4628506 (1986-12-01), Sperlich
patent: 4679243 (1987-07-01), McGeehan et al.
patent: 4726069 (1988-02-01), Stevenson
Ellwanger, Gerhard, "Sender und Empfanger", (Transmitter and Receiver), ANT Nachrichtentechnische Berichte Heft, Dec. 2, 1985, pp. 23-32).

Affiliated with

Also associated with

Rating

Method and apparatus for regulating a single sideband up convert 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 regulating a single sideband up convert, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for regulating a single sideband up convert will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-177858