Patent ID: 6396345
Filing Date: 2002-05-28
Classification: H03F,H04L

Abstract:
A detector operable to provide at least one error signal associated with at least one of a phase error term and an gain error term between a reference signal R and a feedback signal F, the detector comprising:a vector generator responsive to the reference signal R, the vector generator producing a frame of reference vectors R1-Rn generated by a combination of the reference signal R with first A and second P offset vectors that provide an amplitude and phase displacement of the reference signal R; a signal combiner arranged to generate difference vectors E1-En by combining the frame of reference vectors R1-Rn and the feedback signal F, the difference vectors E1-En expressing the phase (p) and the gain (a) error terms relative to the reference signal R and the first A and second P offset vectors; and an error signal detector responsive to the difference vectors E1-En and arranged to provide a measure of the phase (p) and the gain (a) error terms required to support subsequent generation of the at least one error signal; and wherein n is an integer greater than one.