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    • 2. 发明授权
    • Near-field communication (NFC) system providing low power mode frequency cycling and related methods
    • 近场通信(NFC)系统提供低功率模式频率循环和相关方法
    • US08787830B2
    • 2014-07-22
    • US12856783
    • 2010-08-16
    • Vahid MoosaviScott Douglas Rose
    • Vahid MoosaviScott Douglas Rose
    • H04B5/00
    • H04W52/0254H04M1/7253H04M2250/04Y02D70/00Y02D70/1224Y02D70/1242Y02D70/142Y02D70/144Y02D70/146Y02D70/164Y02D70/166
    • A near-field communication (NFC) system may include a plurality of NFC devices each including a housing, a power source carried by the housing, at least one input device carried by the housing and assigned to a designated device function, an NFC circuit configured to wirelessly communicate using an NFC communications protocol, and a processor. The processor may be configured to initiate the designated device function based upon a first input pattern of the at least one input device, switch the NFC circuit between a higher power state and a lower power state at a first frequency, the NFC circuit in the higher power state being configured to generate an RF field to initiate NFC communications, and switch the NFC circuit between the higher and lower power states at a second frequency based upon a second input pattern of the input device(s) different from the first input pattern.
    • 近场通信(NFC)系统可以包括多个NFC设备,每个NFC设备包括外壳,由外壳承载的电源,由外壳承载并分配给指定的设备功能的至少一个输入设备,配置的NFC电路 使用NFC通信协议和处理器进行无线通信。 处理器可以被配置为基于至少一个输入设备的第一输入模式来发起指定的设备功能,在第一频率的较高功率状态和较低功率状态之间切换NFC电路,较高的NFC电路 功率状态被配置为产生RF场以启动NFC通信,并且基于与第一输入模式不同的输入设备的第二输入模式,以第二频率在较高和较低功率状态之间切换NFC电路。