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公开(公告)号：US09198133B2
公开(公告)日：2015-11-24
申请号：US13045932
申请日：2011-03-11
IPC分类号： H04W52/02
CPC分类号： H04W52/0261 , G05F1/66 , H04B1/3883 , H04L27/2614 , H04L47/748 , H04W28/14 , Y02D70/00 , Y02D70/144
摘要： A method, system, and device provide power-efficient communications within the context of available power. Transmission and receipt data rates are scalable in accordance with output power available from a power source. Data is transmitted at a data rate determined, at least in part, by the available output power.
摘要翻译： 方法，系统和设备在可用功率的上下文内提供功率高效的通信。 传输和接收数据速率可根据电源可用的输出功率进行扩展。 数据以至少部分地由可用输出功率确定的数据速率发送。
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公开(公告)号：US06922432B2
公开(公告)日：2005-07-26
申请号：US09803258
申请日：2001-03-09
CPC分类号： H04B1/707
摘要： A signaling system is provided in which a spread spectrum code is cyclically shifted by a cyclical shift dictated by a bit pattern of one or more bits. The cyclically shifted spread spectrum code is used to modulate a carrier frequency, and transmitted from a transmitter to a receiver. At the receiver the signal including the cyclically shifted spectrum code is demodulated to recover the cyclically shifted code. The cyclical shift is then determined and the bit pattern which is associated with the cyclical shift is output. The method can be used in direct sequence spread spectrum communication.
摘要翻译： 提供了一种信号系统，其中扩频码被循环移位由一个或多个位的位模式指示的循环移位。 循环移位扩频码用于调制载波频率，并从发射机发射到接收机。 在接收机处，解调包括循环移位的频谱码的信号以恢复循环移位码。 然后确定循环移位，并输出与循环移位相关联的位模式。 该方法可用于直接序列扩频通信。
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公开(公告)号：US09124131B2
公开(公告)日：2015-09-01
申请号：US13556615
申请日：2012-07-24
CPC分类号： H02J1/14 , G01R31/3693 , G01R31/40 , H02S50/00
摘要： A method, apparatus, and device provide for the control of the power sourcing capability of a power source that supplies power to a device. A detection element of the device is operable to dynamically detect a power sourcing capability of the power source. A control element of the device is operable to monitor the detected power sourcing capability of the power source and to control the power source to effect a change in the power sourcing capability of the power source in response to a determination that the detected power sourcing capability of the power source is in violation of a threshold value.
摘要翻译： 方法，装置和装置提供用于控制向装置供电的电源的电源能力的控制。 设备的检测元件可操作以动态地检测电源的供电能力。 该装置的控制元件可操作以响应于确定所检测到的电力来源能力的确定来监测电源的检测到的电力供应能力并且控制电源来实现电源的电源能力的变化， 电源违反阈值。
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公开(公告)号：US08773083B2
公开(公告)日：2014-07-08
申请号：US13353470
申请日：2012-01-19
CPC分类号： H02J1/14 , G01R31/3606
摘要： A method, apparatus, and device provide for the detection of insufficient supplied power supplied to a device. A current multiplier of the device, operable as a voltage regulator, is coupled to the power source, receives a clock signal, and generates a control signal. A digital counter, clocked by the clock signal and reset by the control signal, generates an overflow output in response to an overflow condition of the digital counter that indicates that the current sourcing capability of the power source has fallen below a current threshold of the device. A compensatory response by the device in response to the detection of insufficient supplied power may be provided as well.
摘要翻译： 一种方法，装置和装置提供用于检测供应给设备的不充足的供电功率。 可操作为电压调节器的器件的电流倍增器耦合到电源，接收时钟信号并产生控制信号。 由时钟信号计时并由控制信号复位的数字计数器响应于数字计数器的溢出状态而产生溢出输出，该溢出条件指示电源的电流源能力已经低于器件的电流阈值 。 也可以提供响应于检测不足供应电力的装置的补偿响应。
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15.发明授权公开(公告)号：US08385932B2
公开(公告)日：2013-02-26
申请号：US12415864
申请日：2009-03-31
IPC分类号： H04W72/04
CPC分类号： H04L27/0006 , H04L5/0058 , H04L5/0071 , H04L5/0075 , H04W72/02 , H04W72/1215
摘要： A technique (300) and apparatus for sharing frequency spectrum amongst cognitive radios, without the use of a centralized control, is provided. By determining open segments of available spectrum within a brokered spectrum (306), and determining costs associated with those available segments (307), a CR device can identify an optimal spectral portion (308) within which to transmit (314) and grow (342) a narrowband signal. The occupied bandwidth growth is monitored such that cost associated with the growth does not exceed a cost threshold (341).
摘要翻译： 提供了一种技术（300）和用于在认知无线电之间共享频谱的装置，而不使用集中式控制。 通过确定经销频谱（306）内的可用频谱的开放段，并且确定与那些可用段（307）相关联的成本，CR设备可以识别在其中发送（314）并增长的最佳频谱部分（314） ）窄带信号。 监控占用带宽增长，使与增长相关的成本不超过成本阈值（341）。
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公开(公告)号：US08340168B2
公开(公告)日：2012-12-25
申请号：US13206605
申请日：2011-08-10
IPC分类号： H04B3/46
摘要： A method, system, network and device provide Smart Grid Radio Frequency Interference (RFI) detection. One or more symbols or chips present in one or more received radio frequency signals are detected and the presence of one or more erred symbols or chips in the detected one or more symbols present in the received one or more radio frequency signals determined. A correlation in time between the one or more erred symbols or chips and an infrastructure waveform associated with electrical infrastructure can be determined. When the determined correlation indicates the electrical infrastructure as a source of detectable radio frequency interference to a device, a pattern flag is generated. The pattern flag or pattern flag representation can be stored and/or transmitted.
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17.发明申请公开(公告)号：US20090275294A1
公开(公告)日：2009-11-05
申请号：US12112568
申请日：2008-04-30
CPC分类号： H04W16/14 , H04W74/0808
摘要： A method (300) and cognitive radio (CR) wireless device (102) are provided for dynamically accessing spectrum in an opportunistic spectrum access wireless communication system (100). The method includes: transmitting, from a CR wireless device, a signal (216) having a first bandwidth within an unoccupied portion of spectrum (206), and after a time interval (T3) following the transmitting, and upon determining that an adjacent spectral quantum is occupied, transmitting from the CR wireless device a signal (216) having a second bandwidth, the second bandwidth being less than the first bandwidth. The method doubles a rate of growth of bandwidth of a transmitted signal when a spectral quantum adjacent to one side of the signal is unoccupied and a spectral quantum adjacent to the other side of the signal is occupied. The method utilizes knowledge of location of the CR wireless device and of band-edges to intelligently use spectral fence quanta.
摘要翻译： 提供了一种方法（300）和认知无线电（CR）无线设备（102），用于在机会频谱接入无线通信系统（100）中动态访问频谱。 该方法包括：从CR无线设备发送具有在频谱（206）的未占用部分内的第一带宽的信号（216），以及在发送之后的时间间隔（T3）之后，以及在确定相邻频谱 量子被占用，从CR无线设备发送具有第二带宽的信号（216），第二带宽小于第一带宽。 当与信号的一侧相邻的频谱量子没有占用并且与信号的另一侧相邻的频谱量子被占用时，该方法使发射信号的带宽增长率增加一倍。 该方法利用CR无线设备的位置知识和带边缘智能地使用频谱栅栏量子。
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公开(公告)号：US06745038B2
公开(公告)日：2004-06-01
申请号：US09845467
申请日：2001-04-30
IPC分类号： H04Q720
CPC分类号： H04W52/24 , H04B17/27 , H04B17/318 , H04W52/08
摘要： A technique for intra-piconet location determination and tomography is described. This technique uses received signal strength indicator (RSSI) values in conjunction with transmitted power levels to determine the relative location of each device within a small network employing frequency hopped spread spectrum transmission. In addition to the location determination properties of the invention, the geometry of the devices in the network, as well as the path loss information between pairs of devices, may be used to infer the location of absorbers and reflectors within the piconet. This absorption and reflection information may be used in creating the piconet tomography. The approach described in this specification may be applied in conjunction with the Bluetooth wireless Personal Area Network (PAN) specification to determine device locations, mitigate the effects of multi-path, and perform indoor location and security functions, and other application functions requiring cost-effective location determination.
摘要翻译： 描述了用于微微网位置确定和断层摄影的技术。 该技术结合发射功率电平使用接收信号强度指示符（RSSI）值来确定使用跳频扩频传输的小型网络内的每个设备的相对位置。 除了本发明的位置确定性质之外，网络中的设备的几何形状以及设备对之间的路径损耗信息可以用于推断微微网内的吸收器和反射器的位置。 该吸收和反射信息可以用于创建微微子层析成像。 本说明书中描述的方法可以与蓝牙无线个人局域网（PAN）规范结合使用，以确定设备位置，减轻多路径的影响，以及执行室内位置和安全功能，以及需要成本效益的其他应用功能， 有效位置确定。
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19.发明授权公开(公告)号：US06597915B2
公开(公告)日：2003-07-22
申请号：US10022944
申请日：2001-12-18
申请人： Qicai Shi , Edgar H. Callaway, Jr. , Jian Huang
发明人： Qicai Shi , Edgar H. Callaway, Jr. , Jian Huang
IPC分类号： H04Q720
CPC分类号： H04W4/02 , H04W40/246 , H04W40/248 , H04W84/18 , H04W84/22
摘要： Location related information is collected for a network of communication devices that each is operable in a coordinating mode and in a non-coordinating mode. While in the coordinating mode, each communication device collects and stores location determining information (410, 420). Using the location determining information collected by one or more of the communication devices over multiple instances of operation in the coordinating mode, location information is calculated or updated for selected devices within the network (510, 520, 530, 540). In one embodiment, each device operates to mediate communication activities among others devices of the network while in the coordinating mode.
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公开(公告)号：US07171476B2
公开(公告)日：2007-01-30
申请号：US10125939
申请日：2002-04-19
申请人： Masahiro Maeda , Monique Bourgeois , Edgar H. Callaway, Jr. , Priscilla Chen , Jian Huang , Yan Huang , Qicai Shi
发明人： Masahiro Maeda , Monique Bourgeois , Edgar H. Callaway, Jr. , Priscilla Chen , Jian Huang , Yan Huang , Qicai Shi
CPC分类号： H04W84/20 , H04L1/1607 , H04L45/02 , H04L45/026 , H04L45/46 , H04W40/246 , H04W76/10 , H04W84/18
摘要： A cluster tree network formed by self-organization of a number of nodes. The method of self-organization includes processes for cluster formation, cluster network maintenance, intra-cluster communication. In the cluster formation process, each node discovers if any neighboring node is a cluster head or if any node is already a member of a cluster (thus making it a networked node), and if a cluster head or a networked node is discovered, each node establishes a communication link with the cluster head or the networked node. If no cluster head or networked node is discovered, the node itself becomes a cluster head. The network is maintained by each node periodically broadcasting a HELLO message to neighboring nodes, receiving responses to the HELLO message and updating a neighbor list in accordance with responses to the HELLO message. Multi-cluster networks are also provided using the processes of inter-cluster network formation, inter-cluster network maintenance, and inter-cluster communication. The resulting network has one or more clusters of nodes, each with a cluster head and a number of member nodes, each assigned a node identifier by the cluster head. In a multi-cluster network, a designated device assigns identifies to each cluster head in the network. Border nodes, which are members of at least two clusters, act as routers connecting the clusters and relaying information packets between the clusters.
摘要翻译： 通过多个节点的自组织形成的集群树网络。 自组织的方法包括集群形成，集群网络维护，集群内通信等过程。 在集群形成过程中，每个节点发现任何相邻节点是否为群集头，或者任何节点已经是群集的成员（从而使其成为网络节点），如果发现了群集头或网络节点， 节点与集群头或网络节点建立通信链路。 如果没有发现簇头或网络节点，节点本身就成为簇头。 网络由每个节点维护，周期性地向相邻节点广播HELLO消息，接收对HELLO消息的响应，并根据对HELLO消息的响应更新邻居列表。 群集间网络形成，集群间网络维护和群集间通信也提供了多集群网络。 所得到的网络具有一个或多个节点簇，每个节点具有簇头和多个成员节点，每个节点由簇头分配节点标识符。 在多集群网络中，指定的设备将标识分配给网络中的每个集群头。 作为至少两个集群的成员的边界节点充当连接集群并在集群之间中继信息包的路由器。
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