Trident Microsystems (far East) Ltd.

Trident Microsystems, Inc.

Ingo Steinbach

Miodrag Temerinac

Hans Fiesel

The invention relates to recovering a carrier for a synchronous demodulator, that receives an input signal. A carrier is reconstructed for the provided input signal, and the input signal (in) and carrier (tr) are mixed to generate a mixed signal to be outputted (i, q), wherein a residual phase error of the mixed signal is corrected by a phase shift to provide a phase corrected output signal.

Circuit and method for recovering a carrier

The invention relates to a method as well as a circuit arrangement for suppression of a perturbing quadrature component of a carrier signal of an amplitude-modulated signal during the recovery of the carrier signal in a synchronous demodulator, which outputs a quadrature signal (Q). The perturbing quadrature component of the carrier signal is estimated and the estimated quadrature component is subtracted from the quadrature signal (Q).

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Freiburg, Germany

Ingo Steinbach