Patent ID: 6175630
Filing Date: 2001-01-16
Classification: H04N

Abstract:
An apparatus for automatically controlling phasor values of a plurality of signals comprising a broadband output signal generated by a broadband multicarrier signal generator, said apparatus comprising:means for sampling the broadband output signal of said broadband multicarrier signal generator to provide a sampled broadband signal comprising said plurality of signals;means coupled to said sampling means for selectively measuring the phasor values of at least a portion of said plurality of signals;means responsive to said measuring means for sequentially comparing each of said selectively measured phasor values to a corresponding reference phasor value; andmeans responsive to said comparison means for modifying independently the individual phasor values of each of said at least a portion of said plurality of signals to minimize the difference between each of said selectively measured phasor values for each of said at least a portion of said plurality of signals, and their corresponding reference phasor values.