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1. 发明申请

US20140140364A1 PRECISION TEMPERATURE MEASUREMENT DEVICES, SENSORS, AND METHODS 有权
标题翻译：精密温度测量装置，传感器和方法
公开(公告)号：US20140140364A1
公开(公告)日：2014-05-22
申请号：US14080625
申请日：2013-11-14
申请人： DUST NETWORKS, INC.
发明人： Gordon Alexander CHARLES , Mark Alan LEMKIN
IPC分类号： G01K15/00 , G01K7/01
CPC分类号： G01K15/005 , G01K7/01
摘要： A precision temperature sensing system includes a heater and a sensing element disposed on a semiconductor substrate. A power source drives the heater on a periodic basis according to a received clock signal. The sensing element senses the heat emitted by the heater and diffused through the semiconductor substrate. Processing circuitry coupled to the sensing element adjusts a phase of the periodic heater driving signal based on the heat sensed by the sensing element. The processing circuitry determines a temperature based on a thermal diffusivity (TD) of the semiconductor substrate, the adjusted value of the phase, and a known distance between the heater and the sensing element. A second temperature sensor can be disposed on the same substrate as the precision temperature sensing system, and calibrated based on temperature measurements obtained while applying a reference frequency signal to the precision sensing system.
摘要翻译：精密温度感测系统包括加热器和设置在半导体衬底上的感测元件。电源根据接收到的时钟信号周期性地驱动加热器。感测元件感测加热器发出的热量并通过半导体衬底扩散。耦合到感测元件的处理电路基于感测元件感测的热量调节周期性加热器驱动信号的相位。处理电路基于半导体衬底的热扩散率（TD），相位的调节值以及加热器和感测元件之间的已知距离来确定温度。第二温度传感器可以设置在与精密温度感测系统相同的衬底上，并且基于在将参考频率信号施加到精密感测系统时获得的温度测量来校准。

2. 发明授权

US08570904B2 Localization in a network 有权
标题翻译：网络中的本地化
公开(公告)号：US08570904B2
公开(公告)日：2013-10-29
申请号：US13330758
申请日：2011-12-20
申请人： Mark Lemkin , Thor Juneau , Lance R. Doherty
发明人： Mark Lemkin , Thor Juneau , Lance R. Doherty
IPC分类号： H04L12/28
CPC分类号： G01S5/0289 , G01S5/10 , H04L67/12 , H04L67/18 , H04W24/10 , H04W64/00 , H04W84/12 , H04W88/16
摘要： A system for determining node locations comprises an interface for receiving a first set of measurements at a first set of nodes, the first set of nodes having known locations. The system further comprising an interface for receiving a second set of measurements at a node having an unknown location, and a processor configured for determining a location of the node with unknown location based at least in part on the first set of measurements and the second set of measurements.
摘要翻译：用于确定节点位置的系统包括用于在第一组节点处接收第一组测量的接口，所述第一组节点具有已知位置。该系统还包括用于在具有未知位置的节点处接收第二组测量的接口，以及被配置为至少部分地基于第一组测量和第二组来确定具有未知位置的节点的位置的处理器的测量。

3. 发明授权

US08558728B1 Phase noise tolerant sampling 有权
标题翻译：相位容差采样
公开(公告)号：US08558728B1
公开(公告)日：2013-10-15
申请号：US13559909
申请日：2012-07-27
申请人： Mark Alan Lemkin , Thor Nelson Juneau
发明人： Mark Alan Lemkin , Thor Nelson Juneau
IPC分类号： H03M1/50
CPC分类号： H03L7/08 , G01R31/31709 , H03L7/18
摘要： Phase noise in a first clock signal is measured using a time to digital converter (TDC) by determining variations in the phase delay between the first clock signal and a second clock signal. The TDC can include first and second series interconnections of delay elements, first and second sets of latches, and processing circuitry coupled to the latches and configured to determine the phase delay. The TDC can include a series interconnection of delay elements, latches, and circuitry configured to selectively adjust the control signal connected to the delay elements based on the output of the latches. The phase noise measurement can be used in a sampling circuit, so as to produce a second data signal from a first data signal based on the first clock signal and the measured phase noise.
摘要翻译：通过确定第一时钟信号和第二时钟信号之间的相位延迟的变化，使用时间数字转换器（TDC）测量第一时钟信号中的相位噪声。 TDC可以包括延迟元件的第一和第二串联互连，第一和第二锁存器组以及耦合到锁存器并被配置为确定相位延迟的处理电路。 TDC可以包括延迟元件，锁存器和配置为基于锁存器的输出选择性地调整连接到延迟元件的控制信号的电路的串联互连。可以在采样电路中使用相位噪声测量，以便基于第一时钟信号和所测量的相位噪声从第一数据信号产生第二数据信号。

4. 发明授权

US08194655B2 Digraph based mesh communication network 有权
标题翻译：基于图的网格通信网络
公开(公告)号：US08194655B2
公开(公告)日：2012-06-05
申请号：US10914056
申请日：2004-08-05
申请人： Kristofer S. J. Pister
发明人： Kristofer S. J. Pister
IPC分类号： H04L12/28
CPC分类号： H04L45/02 , H04W40/00
摘要： In a packet communication network, a method of packet switched transport is provided using digraphs defining paths among nodes in which a graph identifier, instead of a literal destination address, is used to determine paths through the network. The nodes themselves implement a real-time mesh of connectivity. Packets flow along paths that are available to them, flowing around obstructions such as dead nodes and lost links without need for additional computation, route request messages, or dynamic routing tree construction.
摘要翻译：在分组通信网络中，使用定义在节点之间的路径的图形来提供分组交换传输的方法，其中使用图形标识符而不是字面目的地地址来确定通过网络的路径。节点本身实现了连通性的实时网格。分组沿着可用的路径流动，围绕诸如死节点和丢失的链路的障碍物流动，而不需要额外的计算，路由请求消息或动态路由树构造。

5. 发明授权

US08139554B1 Providing bounded latency communication in wireless mesh networks 有权
标题翻译：在无线网状网络中提供有界等待时间通信
公开(公告)号：US08139554B1
公开(公告)日：2012-03-20
申请号：US11649342
申请日：2007-01-03
申请人： Jonathan Simon , Lance R. Doherty
发明人： Jonathan Simon , Lance R. Doherty
IPC分类号： H04J3/24
CPC分类号： H04W40/12
摘要： Communicating using a mesh network is disclosed. A frame length used for communicating a packet between a first node and a second node of a wireless mesh network is selected. A route from the first node to the second node is determined including one or more intermediate nodes that receive and transmit the packet. Node to node communications within the frame along the route is selected such that a communication latency time is below a predetermined limit time for a predetermined percentage of communications between the first node and the second node.
摘要翻译：公开了使用网状网络进行通信。选择用于在无线网状网络的第一节点和第二节点之间传送分组的帧长度。确定从第一节点到第二节点的路由包括接收和发送分组的一个或多个中间节点。选择沿着路线的帧内的节点到节点通信，使得对于第一节点和第二节点之间的预定通信百分比，通信等待时间低于预定限制时间。

6. 发明授权

US08943352B1 Low power timing, configuring, and scheduling 有权
标题翻译：低功耗定时，配置和调度
公开(公告)号：US08943352B1
公开(公告)日：2015-01-27
申请号：US13465722
申请日：2012-05-07
申请人： Brett Warneke
发明人： Brett Warneke
IPC分类号： G06F1/00 , G06F1/04 , H03B19/00 , H03K3/03 , G06F1/32
CPC分类号： G06F1/3243 , G06F1/12 , G06F1/14 , G06F1/3234 , G06F1/3237 , G06F1/3287 , G06F1/3293 , G06F9/44505 , H03L5/02 , H03L7/18 , H04B1/0003 , H04W52/0203 , H04W52/0209 , Y02D10/171 , Y02D70/00 , Y02D70/122 , Y02D70/144 , Y02D70/22
摘要： A device reduces its energy consumption using a relatively lower frequency and lower power secondary oscillator to maintain timing information when a higher frequency and higher power primary oscillator is inactivated. The secondary oscillator maintains timing information at a higher resolution than the period of the oscillator, so as to conserve synchronization when the higher frequency, higher power primary oscillator is inactivated. In some embodiments, a microsequencer is programmably configured to control an integrated radio receiver and transmitter using less power than an associated microprocessor would use to perform the same functions. In other embodiments, flexible event timing facilitates the merging of wake-up events to reduce the energy consumed by wake-up operations in the device.
摘要翻译：一个器件使用相对较低频率和较低功率的次级振荡器来降低其能耗，以便在较高频率和较高功率的主振荡器未激活时保持定时信息。次级振荡器以比振荡器的周期更高的分辨率保持定时信息，以便在较高频率的较高功率主振荡器失活时节省同步。在一些实施例中，微定序器可编程地配置成使用比相关微处理器更少的功率来控制集成的无线电接收机和发射机来执行相同的功能。在其他实施例中，灵活的事件定时有助于唤醒事件的合并，以减少设备中唤醒操作消耗的能量。

7. 发明授权

US08830847B1 Determining path stability using source routed packets in wireless networks 有权
标题翻译：使用无线网络中的源路由数据包确定路径稳定性
公开(公告)号：US08830847B1
公开(公告)日：2014-09-09
申请号：US12770571
申请日：2010-04-29
申请人： Lance Robert Doherty , Zhenqiang Ye , Jonathan Simon
发明人： Lance Robert Doherty , Zhenqiang Ye , Jonathan Simon
IPC分类号： H04L12/28 , H04W40/12
CPC分类号： H04W40/12 , H04L45/26 , H04L45/28 , H04L45/34
摘要： A system for determining path stability using source routed packets in a wireless network comprises a processor and a memory. The processor is configured to select a source route on which to send one or more probing packets, wherein the source route includes a path between a first node and a second node and calculate a stability of the path based at least in part on a success or a failure location of each of the one or more probing packets. The memory is coupled to the processor and configured to provide instructions to the processor.
摘要翻译：用于使用无线网络中的源路由分组确定路径稳定性的系统包括处理器和存储器。处理器被配置为选择在其上发送一个或多个探测分组的源路由，其中源路由包括第一节点和第二节点之间的路径，并且至少部分地基于成功来计算路径的稳定性，或者一个或多个探测分组中的每一个的故障位置。存储器耦合到处理器并且被配置为向处理器提供指令。

8. 发明授权

US08823572B2 Anti-aliasing sampling circuits and analog-to-digital converter 有权
标题翻译：抗混叠采样电路和模数转换器
公开(公告)号：US08823572B2
公开(公告)日：2014-09-02
申请号：US13717377
申请日：2012-12-17
申请人： Dust Networks, Inc.
发明人： Mark Alan Lemkin
IPC分类号： H03M1/12
CPC分类号： H03M1/124 , H03M1/1245 , H03M1/468
摘要： A sampling circuit, such as the sampling circuit of a successive approximation analog-to-digital converter (ADC), provides anti-aliasing filtering of a sampled input signal. The circuit samples the input signal using multiple capacitors, wherein each capacitor samples the input signal at a distinct time during a sampling time interval. The circuit combines the samples stored on different capacitors during a conversion time interval, and generates a digital output signal using the combined samples. In one example, a first bit of the output signal is generated using a sample stored on a first capacitor, and second bit of the output signal is generated using a sample stored on a second capacitor. In another example, the circuitry performs finite or infinite impulse response (FIR or IIR) filtering of the input signal, where a filter characteristic is determined by the relative sizes of the capacitors used for sampling.
摘要翻译：诸如逐次逼近模数转换器（ADC）的采样电路的采样电路为采样的输入信号提供抗混叠滤波。该电路使用多个电容对输入信号进行采样，其中每个电容器在采样时间间隔期间的不同时间对输入信号进行采样。该电路在转换时间间隔期间组合存储在不同电容器上的样本，并使用组合样本生成数字输出信号。在一个示例中，使用存储在第一电容器上的样本来产生输出信号的第一位，并且使用存储在第二电容器上的样本产生输出信号的第二位。在另一示例中，电路对输入信号执行有限或无限脉冲响应（FIR或IIR）滤波，其中滤波器特性由用于采样的电容器的相对尺寸确定。

9. 发明授权

US08396022B1 Source routing bandwidth activation 有权
标题翻译：源路由带宽激活
公开(公告)号：US08396022B1
公开(公告)日：2013-03-12
申请号：US12288342
申请日：2008-10-17
申请人： William Alan Lindsay , Lance R. Doherty
发明人： William Alan Lindsay , Lance R. Doherty
IPC分类号： H04B7/212
CPC分类号： H04L45/34
摘要： A method for processing a source routed packet comprises determining a next node in a source route for a source routed packet in a mesh network and transmitting the source routed packet to the next node in the source route. A method for creating a source routed packet comprises determining a source route path to a destination node and transmitting a source routed packet that includes the source route path to a first node associated with the source route path.
摘要翻译：用于处理源路由分组的方法包括：确定网状网络中的源路由分组的源路由中的下一个节点，并将源路由分组发送到源路由中的下一个节点。用于创建源路由分组的方法包括确定到目的地节点的源路由路径，并将包括源路由路径的源路由分组发送到与源路由路径相关联的第一节点。

10. 发明授权

US08189479B1 Congestion control for wireless sensor networks 有权
标题翻译：无线传感器网络的拥塞控制
公开(公告)号：US08189479B1
公开(公告)日：2012-05-29
申请号：US12387454
申请日：2009-04-30
申请人： Lance Robert Doherty , Jonathan Simon , Zhenqiang Ye
发明人： Lance Robert Doherty , Jonathan Simon , Zhenqiang Ye
IPC分类号： H04J1/16
CPC分类号： H04W28/0236 , H04L47/24 , H04L47/27 , H04L47/30 , H04W84/18
摘要： A system for congestion control for a wireless sensor network comprises a processor and a memory. The processor is configured to determine a level of congestion at one or more nodes and indicate an adjustment to network traffic in response to the level of congestion. The adjustment to the network traffic reduces the level of congestion at the one or more nodes. The memory is coupled to the processor and configured to provide instructions to the processor.
摘要翻译：用于无线传感器网络的拥塞控制的系统包括处理器和存储器。处理器被配置为确定一个或多个节点处的拥塞水平，并且响应于拥塞水平指示对网络流量的调整。对网络流量的调整降低了一个或多个节点的拥塞程度。存储器耦合到处理器并且被配置为向处理器提供指令。

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