DIVERSITY RECEIVING CIRCUIT, APPARATUS, AND SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a diversity receiving circuit with a comparatively simple configuration and smaller power consumption for receiving signals of a plurality of wireless communication systems and surely selecting an antenna with a high reception level.

SOLUTION: The diversity receiving circuit includes: a level comparison section 109 that compares a first reception level of a communication signal output from a first reception means 105A connected to any of a plurality of antennas with a second reception level of a communication signal output from a second reception means connected to any of the antennas not connected to the first reception means 105A to output a level comparison signal; a switching control means 110 that outputs a switching selection signal for selecting one by one antenna each connected to the first and second reception means 105A, 106A on the basis of a reception mode control signal and the level comparison signal for selecting a reception mode; and a switching selection means 102 that connects the two antennas to the first or second reception means 105A or 106A on the basis of the switching selection signal.

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