Patent ID: 7272372
Filing Date: 2007-09-18
Classification: H04B

Abstract:
1. A diversity antenna apparatus, comprising: N (N is 3 or more integer) elements of antennas which receive radio signals; a priority storage unit configured to store priority data of said N elements of antennas, the priority storage unit storing the priority data of at least first and second priority antennas; a first antenna selector which selects two antennas from among said N elements of antennas based on the priority data; a second antenna selector which selects one of the selected two antennas based on a prescribed condition; a priority update unit configured to update priority data of said N elements of antennas stored in said priority storage unit based on said antenna selected by said second antenna selector; and a reception determination unit configured to determine whether or not a frame of the radio signal has been received without error from the start of the frame to the end thereof, wherein said priority update unit sets the priority of the second priority antenna to the lowest, and raises the priorities of the remaining antennas by one level, without changing the priority of the first priority antenna among said N elements of antenna, when said reception determination unit determines that at least a portion of the frame of the radio signal has not been received.