Patent ID: 6920189
Filing Date: 2005-07-19
Classification: H03L,H04L

Abstract:
1. Carrier recovery means—in particular in a channel decoding unit and/or a digital demodulating unit being particularly provided in a digital broadcasting receiver—for recovering a carrier of a received digital input signal, comprising at least first and second phase error detecting means, in which: said first phase error detecting means is adapted for detecting a robust estimate for the phase error of the received digital input signal and for generating and outputting a robust phase error signal representative of said robust phase error, said second phase error detecting means is adapted for receiving the robust phase error signal from said first phase error detecting means and for deriving therefrom a frequency sensitive phase error signal which is representative of the sign of the frequency error with respect to the received digital, and said frequency sensitive phase error signal is used to reduce the frequency error with respect to the received digital signal to enable locking to at least the carrier thereof.