Abstract:
A radio communication device performs radio communication with a tag which includes a first short-range radio communication module, wherein the radio communication device includes a second short-range radio communication module that measures electric field strength of a radio wave from the tag, a sensor that detects a motion of the radio communication device, a location estimation unit that estimates a location of the tag, based on the electric field strength measured by the second short-range radio communication module, and the motion of the radio communication device detected by the sensor, and an output unit that outputs information indicating the location of the tag, wherein the location of the tag is estimated by the location estimation unit.
Abstract:
A mobile terminal capable of determining whether a near field communication source is a mobile terminal or not, and capable of appropriately restricting information reading in near field communication. The mobile terminal includes an antenna for near field communication and an RF part. The RF part includes an electromotive force measuring part which measures the electromotive force of a carrier wave received by the antenna, a communication permission/prohibition determining part which, when the measured electromotive force is less than or equal to a predetermined threshold value, determines that the sender of the carrier wave is a mobile terminal and outputs a communication prohibition signal, and an RF controller which acquires the communication prohibition signal and locks the RF part.