Patent ID: 6430404
Filing Date: 2002-08-06
Classification: H04B

Abstract:
A scanning antenna diversity system for motor vehicles comprising:a) at least two antennas in a multi-antenna installation; b) a controllable logic circuitry coupled to said at least two antennas; c) a receiver coupled to said logic circuitry for receiving a received signal; d) a diversity processor coupled to and controlled by said receiver, said diversity processor producing a derived received signal from said first received signal, said diversity processor stepping said logic circuitry to another switching position during the presence of reception interference, wherein to produce a set of the shortest possible comparison times, said times are initiated in cyclic repetition upon expiration of a previous longer time interval; and e) a plurality of level comparison circuitry for detecting said derived received signal and determining a maximum level switching position associated with the greater actual derived received signal, and selecting a sufficiently short level comparison time without any audible impairment of reception.