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    • 6. 发明申请
    • LOW POWER RADIO FREQUENCY COMMUNICATION
    • 低功率无线电频率通信
    • US20140062672A1
    • 2014-03-06
    • US13786342
    • 2013-03-05
    • Ken GudanSergey ChemishkianJonathan J. HullMatthew S. Reynolds
    • Ken GudanSergey ChemishkianJonathan J. HullMatthew S. Reynolds
    • G06K19/07
    • G06K19/0723G06K19/0715Y02D70/10
    • A method, system and tag for low power radio frequency communication is described. In one embodiment, the RF tag comprises: an access point coupled to provide access to a network; an RF tag comprising an energy harvesting unit operable to convert incident RF energy to direct current (DC); a storage unit operable to store recovered DC power; a passive wakeup pattern detector operable to generate an interrupt in response to detecting a set of one or more subcarriers; one or more sensors for sensing; a communication mechanism; and a microcontroller coupled to the energy harvesting and storage units, the one or more sensors, and the backscatter communicator, the microcontroller operable to wake up from a sleep state in response to the interrupt and cause the communication mechanism to exchange data wirelessly with another while powered by energy previously harvested and stored by the energy harvesting and storage unit.
    • 描述了用于低功率射频通信的方法,系统和标签。 在一个实施例中,RF标签包括:接入点,用于提供对网络的访问; RF标签,其包括可操作以将入射的RF能量转换为直流(DC)的能量收集单元; 存储单元,用于存储恢复的DC电力; 被动唤醒模式检测器,用于响应于检测到一个或多个子载波的集合而产生中断; 一个或多个传感器用于感测; 沟通机制; 以及耦合到所述能量收集和存储单元,所述一个或多个传感器和所述后向散射通信器的微控制器,所述微控制器可操作以响应于所述中断从休眠状态唤醒,并使所述通信机制与另一个无线地交换数据 由能量收集和存储单元先前收获和储存的能量提供动力。
    • 10. 发明授权
    • Asymmetric wireless system
    • 不对称无线系统
    • US09473875B2
    • 2016-10-18
    • US14199810
    • 2014-03-06
    • Sergey ChemishkianKen GudanJonathan J. Hull
    • Sergey ChemishkianKen GudanJonathan J. Hull
    • H04W4/00H04W84/18
    • H04W4/70H04W84/18
    • A method and apparatus is disclosed herein for sensor node and access point communication. In one embodiment, the method comprises embedding, by a sensor node, data from one or more sensor readings in a field of a first message, the field being designated as part of a standardized protocol to send information other than the data sensor readings; determining without the use of a receiver, by the sensor node, whether a wireless communication channel is at a predetermined quality level to send the first message; and broadcasting the first message wirelessly to a component according to the standardized protocol.
    • 本文公开了用于传感器节点和接入点通信的方法和装置。 在一个实施例中,该方法包括由传感器节点将来自一个或多个传感器读数的数据嵌入到第一消息的字段中,该字段被指定为标准化协议的一部分,以发送除数据传感器读数之外的信息; 确定传感器节点不使用接收器,无线通信信道是否处于预定的质量级别以发送第一消息; 以及根据标准化协议将第一消息无线地广播到组件。