Patent ID: 8374565
Filing Date: 2013-02-12
Classification: H04B

Abstract:
1. An antenna diversity receiver, comprising: a plurality of antennas; an antenna selector unit for selecting one of the antennas; a radio-frequency (RF) module unit for converting an RF receive (RX) signal received from the antenna selector unit into a baseband RX signal; a logic gate unit for controlling a power detection mode for detecting a power level of an RX signal received through each of the antennas and an operation mode for selecting one of the antennas based on the detected power level; a power detector unit for detecting the power level of the RX signal received through each of the antennas based on the RX signal received through the RF module unit, under a control of the logic gate unit; and a selection controller unit for controlling the antenna selector unit to sequentially select the antennas in the power detection mode and controlling the antenna selector unit to select an antenna with a highest RX sensitivity among the antennas in the operation mode based on the power level detected by the power detector unit, under the control of the logic gate unit, wherein the RF module unit comprises: the power detector unit is configured to detect the power level of the RX signal received through each of the antennas based on the RX signal output from the band-pass filter of the RF module unit, the antennas comprise a first antenna and a second antenna, the antenna selector unit comprises: the logic gate unit is configured to: the power detector unit comprises: