Patent ID: 6792258
Filing Date: 2004-09-14
Classification: H04B,H04L

Abstract:
A diversity receiver for receiving signals transmitted at radio frequency, the diversity receiver being adapted to operate in different diversity modes in accordance with a plurality of different diversity types comprising at least two of:(a) antenna spatial diversity; (b) antenna polarisation diversity; (c) antenna pattern diversity; or (d) frequency diversity; the receiver including: at least two tuner and digital demodulator circuits coupled simultaneously to receive received signals, each tuner and digital demodulator circuit providing a succession of output values representative of the values of the received signals, monitoring means for monitoring the quality of the output values respectively from each of the tuner and digital demodulator circuits responsive to the received signals, and control means coupled to the monitoring means and responsive to the signal quality being below a predetermined level to command a change in the diversity mode of operation of the receiver.