Modulated local oscillator

Details Modulated local oscillator Modulated local oscillator

H - Electricity

03

D

H03D 7/16 (2006.01) H03D 7/00 (2006.01)

Patent

CA 2245958

A method of performing a frequency conversion of a radio frequency (RF) information signal by mixing the information signal with a modulated signal from local oscillator. The local oscillator signal is modulated with a periodic, coded or pseudo-random modulating signal. A system for generating an intermediate frequency (IF) output signal from the information signal is also provided.

L'invention est une méthode de conversion de fréquences qui convertit un signal d'information en un signal radiofréquence (RF) en le mélangeant avec un signal modulé par un oscillateur local. Le signal de l'oscillateur local est modulé par un signal périodique, codé ou pseudo-aléatoire. Un système servant à produire un signal de fréquence intermédiaire (FI) à partir du signal d'information est également divulgué.

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