Patent ID: 7636561
Filing Date: 2009-12-22
Classification: H04B

Abstract:
1. A diversity switch combiner for a receiver system for receiving signals in the form of successive symbols including guard periods, the diversity switch combiner comprising a plurality of antennas and a receiver circuit for converting signals from the antennas into baseband signals provided at a baseband output, the diversity switch combiner comprising: at least two signal channels between the antennas and the baseband output, each channel being arranged to carry a respective different frequency band of the received signal, switch means for selectively coupling the antennas to each signal channel, and switch control means which is operable to determine the quality of the signals carried by the signal channels for different settings of the respective switch means, and to control the setting of the switch means in dependence upon the quality determination, wherein the switch control means is arranged to alter the switch settings during a guard period in order to determine the quality of the transmitted signals in each respective frequency band, and is thereafter operable to control the setting in accordance with the determined quality.