专利名称：Apparatus for sensing tire information,
reducing distortion of amplitude-modulatedwave
发明人：Kota Iijima申请号：US11282635申请日：20051103
公开号：US20060097891A1公开日：20060511
专利附图：
摘要：An apparatus for sensing tire information including information about tirepressure includes an interrogator for transmitting an interrogation signal to a vicinity of a
tire of a vehicle in a transmission period and for receiving and processing a responsesignal including the tire information in a reception period and a transponder attached tothe tire. The transponder includes a sensor sensing the tire information and a secondmixing unit for mixing first and second signals and outputting a difference signal having afrequency equal to a difference in frequency between the first and second signals. In thetransmission period, a second antenna is connected to a second oscillator by a firstswitching unit, and the first and second signals are transmitted from a first antenna andthe second antenna of the interrogator. The first signal is different from the secondsignal by a predetermined frequency that can excite the sensor.
申请人：Kota Iijima
地址：Fukushima-ken JP
国籍：JP
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