发明名称 Communications device using electromagnet and activated communications circuit
摘要 A communications device includes a processor and Radio Frequency (RF) circuitry that includes a communications module. An electromagnet is connected to the communications module and the processor. The electromagnet is configured to couple magnetically to a second communications device having a magnetic sensor and to transmit from the electromagnet to the magnetic sensor electromagnet pulses containing data regarding a wireless communications protocol. The processor and communications module are configured to establish a wireless communications connection with the second communications device.
申请公布号 US8340577(B2) 申请公布日期 2012.12.25
申请号 US20090565938 申请日期 2009.09.24
申请人 GRIFFIN JASON T.;FYKE STEVEN H.;RESEARCH IN MOTION LIMITED 发明人 GRIFFIN JASON T.;FYKE STEVEN H.
分类号 H04B7/00 主分类号 H04B7/00
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