Patent ID: 9219519
Filing Date: 2015-12-22
Classification: H04B

Abstract:
1. A proximity wireless transmission/reception device comprising: a first transmission/reception unit, of a first communication scheme, including a first tuned circuit and a first modulation/demodulation circuit; a second transmission/reception unit, of a second communication scheme, including a second tuned circuit and a second modulation/demodulation circuit; an antenna where communication signals of the first and second communication schemes are induced; a switch unit configured to connect the antenna and the first transmission/reception unit or to connect the antenna and the second transmission/reception unit; a reception determination unit configured to determine reception states of the first and second transmission/reception units; and a switch switching unit configured to control the switch unit according to a determination result of the reception determination unit, wherein in a case of a no-signal state with respect to the communication signals of the first and second communication schemes, the switch switching unit connects the antenna and the first or second transmission/reception unit while switching between the first and second transmission/reception units in a predetermined time period, and in a case of a receiving state of one of the communication signals of the first and second communication schemes in the first or second transmission/reception unit, the switch switching unit connects the antenna and the first or second transmission/reception unit currently performing reception.