公开(公告)号：US06954446B2

公开(公告)日：2005-10-11

申请号：US10179551

申请日：2002-06-25

申请人： Stephen Kuffner

发明人： Stephen Kuffner

IPC分类号： H04B1/40 ,  H04L12/28 ,  H04W36/06 ,  H04W36/30 ,  H04W72/00 ,  H04W88/06 ,  H04B7/212 ,  H04M1/00

CPC分类号： H04W88/06 ,  H04B1/005 ,  H04B1/406 ,  H04W36/06 ,  H04W36/30 ,  H04W72/00

摘要： A multiple mode RF communication device (100), such as a transmitter, receiver or transceiver, has a first RF communication resource (102, 122) that communicates by default using a first communication mode. A second RF communication resource (104, 124) communicates by default using a second communication mode. A system manager (110) deploys the first and second communication resources according to a set of deployment rules, wherein the deployment rules may be dependent upon a communication quality parameter, priorities, availability of the first and second communication resources as well as other parameters.

摘要翻译： 诸如发射机，接收机或收发机的多模RF通信设备（100）具有默认使用第一通信模式进行通信的第一RF通信资源（102,122）。 第二RF通信资源（104,124）在默认情况下使用第二通信模式进行通信。 系统管理器（110）根据一组部署规则部署第一和第二通信资源，其中部署规则可以取决于通信质量参数，优先级，第一和第二通信资源的可用性以及其他参数。

公开(公告)号：US20050052283A1

公开(公告)日：2005-03-10

申请号：US10937208

申请日：2004-09-09

申请人： Timothy Collins ,  David Gurney ,  Stephen Kuffner ,  Richard Rachwalski

发明人： Timothy Collins ,  David Gurney ,  Stephen Kuffner ,  Richard Rachwalski

IPC分类号： G06K19/07 ,  H04Q5/22

CPC分类号： G06K19/07767 ,  G06F19/00 ,  G06K19/0723

摘要： The present invention provides a multi-band, multi-mode RFID tag that uses a single antenna structure and integrated circuit to provide asset location information at any stage of a supply chain. The unified tag design operates at multiple frequencies (or bands) using the antenna structure, for example, 125 kHz, 13.56 MHz, 915 MHz, and 2.45 GHz, and preferably operates electrostatically (at lower frequencies) and electromagnetically (ay higher frequencies). An on-chip frequency monitor in the integrated circuit automatically determines which frequency is present and derives a local clock for the tag's integrated circuit, which can vary in accordance with the frequency or which can be constant. Alternatively, a phase locked loop circuit can be used to derive a local clock signal modulated into the interrogation signal. On-chip matching and power extraction circuits derive power for the tag from the interrogation signal, which is preferably passive. Additionally, a receiver can receive data from the interrogation signal.

摘要翻译： 本发明提供一种使用单个天线结构和集成电路的多频带多模式RFID标签，以在供应链的任何阶段提供资产位置信息。 统一标签设计使用天线结构（例如125kHz，13.56MHz，915MHz和2.45GHz）在多个频率（或频带）下工作，并且优选静电（在较低频率）和电磁（ay较高频率）下操作。 集成电路中的片上频率监视器自动确定存在哪个频率并导出标签集成电路的本地时钟，该时钟可以根据频率而变化，或者可以是恒定的。 或者，可以使用锁相环电路来导出调制到询问信号中的本地时钟信号。 片上匹配和功率提取电路从询问信号中获取用于标签的功率，优选是被动的。 另外，接收机可以从询问信号接收数据。