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1. 发明授权

US09064196B1 RFID tag dynamically adjusting clock frequency 有权
公开(公告)号：US09064196B1
公开(公告)日：2015-06-23
申请号：US13462343
申请日：2012-05-02
申请人： Vadim Gutnik , Scott A. Cooper , John D. Hyde , Theron Stanford
发明人： Vadim Gutnik , Scott A. Cooper , John D. Hyde , Theron Stanford
IPC分类号： H04Q5/22 , G06K19/07
CPC分类号： G06K7/10207 , G06K7/016 , G06K19/0701 , G06K19/0723 , H04Q2213/13095 , H04Q2213/13214
摘要： An RFID tag is configured to adjust its current clock frequency to conserve tag power while receiving a reader signal and/or backscattering a signal. The tag may determine whether to adjust its current clock frequency based on one or more timing parameters, which may be determined from a reader command and/or from a signal to be backscattered. The counting rate and/or limit of a tag counter and/or the power supplied to a tag component may also be adjusted. The current tag clock frequency may be adjusted during the signal reception/backscattering process and optionally restored once the process is completed.

2. 发明授权

US08193912B1 RFID tag dynamically adjusting clock frequency 有权
标题翻译： RFID标签动态调整时钟频率
公开(公告)号：US08193912B1
公开(公告)日：2012-06-05
申请号：US12403344
申请日：2009-03-12
申请人： Vadim Gutnik , Scott A. Cooper , John D. Hyde
发明人： Vadim Gutnik , Scott A. Cooper , John D. Hyde
IPC分类号： H04Q5/22
CPC分类号： G06K19/0701 , H04Q2213/13095
摘要： RFID tags are configured to adjust their clock frequency in order to meet predefined limits for reply frequencies to conserve tag power. A deviation of computed tag reply frequency from a reader commanded reply frequency is used to determine an adjustment to the tag clock frequency. The tag clock frequency may be adjusted during backscatter and restored once backscattering is completed.
摘要翻译： RFID标签被配置为调整其时钟频率，以便满足回复频率的预定限制以节省标签功率。使用读取器命令回复频率的计算标签应答频率的偏差来确定对标签时钟频率的调整。可以在反向散射期间调整标签时钟频率，并且一旦反向散射完成就恢复。

3. 发明授权

US07307529B2 RFID tags with electronic fuses for storing component configuration data 有权
标题翻译：带有电子保险丝的RFID标签，用于存储组件配置数据
公开(公告)号：US07307529B2
公开(公告)日：2007-12-11
申请号：US11016546
申请日：2004-12-17
申请人： Vadim Gutnik , John D. Hyde , David D. Dressler , Alberto Pesavento , Ronald A. Oliver , Scott Anthony Cooper , Kurt Eugene Sundstrom
发明人： Vadim Gutnik , John D. Hyde , David D. Dressler , Alberto Pesavento , Ronald A. Oliver , Scott Anthony Cooper , Kurt Eugene Sundstrom
IPC分类号： G08B13/14
CPC分类号： G11C17/18 , G06K19/0723 , G06K19/073
摘要： An RFID tag has a fuse that is adapted to store configuration data in a way that survives loss of power. The fuse can be one time programmable or many times programmable, and be implemented with a non-volatile memory. The configuration data becomes available to an operational component of the tag, such as at power up, controlling its performance.
摘要翻译： RFID标签具有适于以丧失功率的方式存储配置数据的熔丝。保险丝可以是一次可编程或多次可编程，并且可以用非易失性存储器实现。配置数据可用于标签的操作组件，例如上电时，控制其性能。

4. 发明授权

US07733227B1 RFID tags circuits and methods for sensing own power to predetermine feasibility of requested action 有权
标题翻译： RFID标签电路和用于感测自身电力的方法，以预先确定所请求动作的可行性
公开(公告)号：US07733227B1
公开(公告)日：2010-06-08
申请号：US11624197
申请日：2007-01-17
申请人： Alberto Pesavento , Vadim Gutnik , John D. Hyde
发明人： Alberto Pesavento , Vadim Gutnik , John D. Hyde
IPC分类号： G08B13/14
CPC分类号： G06K7/0008 , G06K19/0707 , G06K19/0712 , G06K19/07749
摘要： Feasibility of a requested action by a reader is predetermined in an RFID tag based on an available tag power level. A pretest that is designed to consume artificially high levels of power is performed and the power level monitored to determine if a preset condition is met. The pretest may include activation of selected components such as a memory and associated support circuitry. If the preset condition is not met, the requested action is aborted and an error message transmitted to the reader.
摘要翻译：基于可用的标签功率电平，RFID标签中预先确定读取器所请求的动作的可行性。执行被设计为消耗人为高电平的预测试，并且监视功率电平以确定是否满足预设条件。预测试可以包括激活所选择的组件，例如存储器和相关联的支持电路。如果不满足预设条件，请求的操作将中止，并将错误消息传送给读卡器。

5. 发明授权

US07768248B1 Devices, systems and methods for generating reference current from voltage differential having low temperature coefficient 有权
标题翻译：用于从具有低温度系数的电压差产生参考电流的装置，系统和方法
公开(公告)号：US07768248B1
公开(公告)日：2010-08-03
申请号：US11981397
申请日：2007-10-30
申请人： John D. Hyde
发明人： John D. Hyde
IPC分类号： G05F3/16
CPC分类号： G05F3/24
摘要： Embodiments of the invention describe a reference current generator circuit having a core circuit that includes a first transistor in a first current path for conduct a first current and a second transistor in a second current path for conduct a second current. The second transistor has a threshold voltage that is different from the threshold voltage of the first transistor by at least 10%. The voltage differential between the first and second transistors generate a voltage across a resistive component coupled in series with the second transistor in the second current path.
摘要翻译：本发明的实施例描述了具有核心电路的参考电流发生器电路，该核心电路包括用于在第二电流路径中传导第一电流的第一电流路径中的第一晶体管和用于导通第二电流的第二晶体管。第二晶体管具有与第一晶体管的阈值电压不同的阈值电压至少10％。第一和第二晶体管之间的电压差在与第二电流路径中的第二晶体管串联耦合的电阻分量上产生电压。

6. 发明申请

US20100182129A1 INTERFERENCE REJECTION IN RFID TAGS 有权
标题翻译： RFID标签中的干扰抑制
公开(公告)号：US20100182129A1
公开(公告)日：2010-07-22
申请号：US12749648
申请日：2010-03-30
申请人： John D. Hyde , Kurt E. Sundstrom
发明人： John D. Hyde , Kurt E. Sundstrom
IPC分类号： H04Q5/22
CPC分类号： G06K7/10029 , G06K19/0707 , G06K19/0723
摘要： RFID tags, tag circuits, and methods are provided that reject at least in part the distortion caused to wireless signals by interference in the environment. When the received RF wave is converted into an unfiltered input (971), a filtered output (972) is generated that does not include an artifact feature deriving from the distortion. The filtered output is used instead of the unfiltered input, which results in tag operation as if there were less interference in the environment, or none at all.
摘要翻译：提供RFID标签，标签电路和方法，其至少部分地通过在环境中的干扰而拒绝对无线信号造成的失真。当接收的RF波被转换成未滤波的输入（971）时，生成不包括从失真导出的伪影特征的滤波输出（972）。使用滤波输出而不是未过滤的输入，这导致标签操作，就好像环境中的干扰较少，或者根本没有。

7. 发明授权

US07312622B2 Wafer level testing for RFID tags 有权
标题翻译： RFID标签的晶圆级测试
公开(公告)号：US07312622B2
公开(公告)日：2007-12-25
申请号：US11014523
申请日：2004-12-15
申请人： John D. Hyde , Robert M. Glidden , Andrew Edward Horch , Jay A. Kuhn , Ronald A. Oliver
发明人： John D. Hyde , Robert M. Glidden , Andrew Edward Horch , Jay A. Kuhn , Ronald A. Oliver
IPC分类号： G01R31/26
CPC分类号： G01R31/2822 , G01R31/2884 , G01R31/3025 , G01R31/318511
摘要： Technologies suitable for on-wafer testing in the ubiquitous computing era are disclosed. Among the inventive features disclosed are: 1) clustering of wafer test probe landing area sites for parallel test sequencing; 2) on wafer test wiring that runs along the wafer's scribe regions; 3) on-wafer test wiring that can be scribed and yet thwart the spread of contamination into the product die; 4) an RFID tag design that allows for on-wafer testing without imposing substantial semiconductor surface area penalty; 5) an RFID tag design that includes built-in self test (BIST) circuitry for the RFID tag's non-volatile memory.
摘要翻译：披露了适用于无处不在的计算时代的在晶片测试的技术。所公开的发明特征之一是：1）用于并行测试测序的晶圆测试探针着陆区域的聚类; 2）在沿着晶片划线区域延伸的晶片测试布线上; 3）晶片测试布线，可以刻划，但阻止污染物扩散到产品模具中; 4）RFID标签设计，允许进行片上测试而不施加实质的半导体表面积损失; 5）RFID标签设计，包括用于RFID标签的非易失性存储器的内置自检（BIST）电路。

8. 发明授权

US07221596B2 pFET nonvolatile memory 有权
标题翻译： pFET非易失性存储器
公开(公告)号：US07221596B2
公开(公告)日：2007-05-22
申请号：US10839985
申请日：2004-05-05
申请人： Alberto Pesavento , Frédéric J. Bernard , John D. Hyde
发明人： Alberto Pesavento , Frédéric J. Bernard , John D. Hyde
IPC分类号： G11C16/06
CPC分类号： G11C16/0441 , G11C16/28 , G11C2216/10 , H01L27/115 , H01L29/7883
摘要： A nonvolatile memory cell is constructed using a floating-gate (FG) pFET Readout Transistor (RT) having its source tied to a power source (Vdd) and its drain providing a current which can be sensed to determine a cell state. The gate of the RT provides for charge/information storage. A control capacitor structure (CCS) having terminals coupled to a first voltage source and the FG and a tunneling capacitor structure (TCS) having terminals coupled to a second voltage source and the FG are utilized in each embodiment. The CCS has much more capacitance than the TCS. Manipulation of the voltages applied to the first voltage source and second voltage source (and Vdd) controls an electric field across the CCS and pFET dielectrics and thus Fowler-Nordheim tunneling of electrons onto and off of the FG, thus controlling the charge on the FG and the information stored thereon.
摘要翻译：使用其源极连接到电源（Vdd）的浮栅（FG）pFET读出晶体管（RT）构成非易失性存储单元，其漏极提供可被感测以确定单元状态的电流。 RT的门提供充电/信息存储。具有耦合到第一电压源的端子和具有耦合到第二电压源和FG的端子的隧道电容器结构（TCS）的控制电容器结构（CCS）在每个实施例中被使用。 CCS具有比TCS多得多的电容。对施加到第一电压源和第二电压源（和Vdd）的电压的操纵控制跨越CCS和pFET电介质的电场，并且因此Fowler-Nordheim隧道电子进入FG和FG，从而控制FG上的电荷以及存储在其上的信息。

9. 发明授权

US07116240B2 Method and apparatus for controlled persistent ID flag for RFID applications 有权
标题翻译：用于RFID应用的受控持续ID标志的方法和装置
公开(公告)号：US07116240B2
公开(公告)日：2006-10-03
申请号：US10921758
申请日：2004-08-18
申请人： John D. Hyde
发明人： John D. Hyde
IPC分类号： G08B21/00
CPC分类号： G06K19/0723
摘要： A Radio-Frequency Identification (RFID) transponder is provided. The RFID transponder may include a basic ID flag circuit having a VDD voltage node, an output voltage node, and a capacitor coupled to the VDD voltage node and the output voltage node to store an ID flag. The persistence duration of the state of the ID flag is controlled by maintaining a charge and leakage circuit. The charge and leakage circuit includes an NMOS device having a source, a drain and a gate, the source node of the NMOS device being coupled to the capacitor and the drain node of the NMOS device being coupled to a first CMOS inverter. The first CMOS inverter is powered by a regulated supply voltage such that the voltage on the capacitor is not dependent on the forward voltage drop of the NMOS device.
摘要翻译：提供射频识别（RFID）应答器。 RFID应答器可以包括具有VDD电压节点的基本ID标志电路，输出电压节点和耦合到VDD电压节点的电容器和输出电压节点以存储ID标志。通过维持充电和泄漏电路来控制ID标志的状态的持续持续时间。充电和泄漏电路包括具有源极，漏极和栅极的NMOS器件，NMOS器件的源极耦合到电容器，NMOS器件的漏极节点耦合到第一CMOS反相器。第一个CMOS反相器由稳压电源供电，使得电容上的电压不依赖于NMOS器件的正向压降。

10. 发明授权

US08344857B1 RFID tags with synchronous power rectifier 有权
标题翻译：具有同步电源整流器的RFID标签
公开(公告)号：US08344857B1
公开(公告)日：2013-01-01
申请号：US13307098
申请日：2011-11-30
申请人： Ronald A. Oliver , John D. Hyde , Charles J. T. Peach
发明人： Ronald A. Oliver , John D. Hyde , Charles J. T. Peach
IPC分类号： H04Q5/22
CPC分类号： G06K19/0701 , G06K19/0713 , H04Q2213/1308 , H04Q2213/13095
摘要： The present disclosure provides a power rectifier for a Radio Frequency Identification tag circuit. The rectifier is constructed from a pair of complementary MOS transistors. Gates of the transistors have predetermined voltages applied to them. The applied voltages bias the transistors to near their active operating region. During the same time additional control signals are applied to the gates of the transistors, the control signals are synchronous, but out of phase, with each other.
摘要翻译：本公开提供了一种用于射频识别标签电路的功率整流器。整流器由一对互补MOS晶体管构成。晶体管的栅极具有施加到它们的预定电压。施加的电压将晶体管偏置到其活动工作区域附近。在同一时间，附加的控制信号被施加到晶体管的栅极，控制信号是同步的，但彼此相位不同。

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