Patent ID: 7474707

Claim:
A method of processing a baseband multiplex signal, the method comprising: frequency modulating the baseband multiplex signal using a first frequency modulator to produce a first modulated signal; filtering the first modulated signal to produce a first filtered signal; detecting the first filtered signal to produce a first detected baseband multiplex signal; correcting the first detected baseband multiplex signal to reduce or eliminate distortion in a predetermined frequency range of the first detected baseband multiplex signal to produce a first corrected signal; frequency modulating the first corrected signal using a second frequency modulator to produce a second modulated signal; detecting the second modulated signal to produce a second detected baseband multiplex signal; correcting the second detected baseband multiplex signal to reduce or eliminate distortion in a predetermined frequency range of the second detected baseband multiplex signal to produce a second corrected signal; and frequency modulating the second corrected signal to produce a third modulated signal.