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SERVICE AREA DETERMINATION DEVICE, SERVICE AREA DETERMINATION METHOD AND SERVICE AREA DETERMINATION PROGRAM
SERVICE AREA DETERMINATION DEVICE, SERVICE AREA DETERMINATION METHOD AND SERVICE AREA DETERMINATION PROGRAM
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机译:服务区确定装置,服务区确定方法和服务区确定程序
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摘要
PROBLEM TO BE SOLVED: To provide a service area determination device capable of determining whether or not a receiver is positioned in a predetermined area to which a radio wave is oriented irrespective of existence/absence of obstacle between an antenna emitting a radio wave and a receiver receiving the same.SOLUTION: The service area determination device has a determination section that determines whether the receiver is positioned in the predetermined area based on a difference in strength of reception electric field of two radio waves which are received by the receiver in the plural radio waves oriented to the predetermined area.SELECTED DRAWING: Figure 1
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