Patent ID: 7529314

Claim:
Carrier phase detector for calculation of a feedback signal for a carrier phase loop in a receiver, which loop detects a phase error between a phase of a received signal, which comprises a sequence of received data symbols, and a nominal phase of a nominal data symbol, the carrier phase detector comprising: a detector input that is configured to receive a calculated phase of the data symbols; a detector output that is configured to be connected to a downstream digital loop filter via a feedback line to emit the feedback signal; and a control input that is configured to receive a boundary phase; and wherein the carrier phase detector in each case is configured to calculate the feedback signal as a function of the real part and of the imaginary part of a received data symbol, with a received data symbol whose phase is in a boundary phase area being weighted gradually to a lesser extent during the calculation of the feedback signal, with the boundary phase area in each case being arranged symmetrically with respect to a mid-phase which is located in the centre between the two nominal phases of equidistant nominal data symbols, and having a phase extent which is determined by the boundary phase.