利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

16 条记录 (耗时 0.015 秒)

    DETECTION OF START FRAME DELIMITERS IN A WIRELESS DIGITAL COMMUNICATION SYSTEM
    1.
    发明申请
    DETECTION OF START FRAME DELIMITERS IN A WIRELESS DIGITAL COMMUNICATION SYSTEM 有权
    在无线数字通信系统中检测起始帧修改

    公开(公告)号：US20110116534A1

    公开(公告)日：2011-05-19

    申请号：US12947341

    申请日：2010-11-16

    申请人： Cristina Seibert ,  Edwin Shearer

    发明人： Cristina Seibert ,  Edwin Shearer

    IPC分类号： H04B17/00 ,  H04L12/56 ,  H04L12/26

    CPC分类号： H04L7/042 ,  H04L7/048

    摘要： Forward error correction is used in conjunction with detection of a start frame delimiter (SFD) to provide flexibility and to reduce missed instances of an SFD. Candidate SFDs in an incoming signal are identified using a lower-than-normal detection threshold, and corresponding markers are stored in a buffer. For each stored marker, a physical layer header following the candidate SFD is decoded with error-correction techniques, to determine whether uncorrectable errors exist. If so, the candidate is discarded and the next candidate is evaluated. If no uncorrectable errors exist, the candidate is declared a valid SFD, and the remaining signal is decoded. Dual detection thresholds can be employed in networks that permit both error-encoded and non-coded packets. A technique for selecting SFD patterns that facilitate higher performance is also disclosed.

    摘要翻译： 前向纠错与检测起始帧定界符（SFD）一起使用，以提供灵活性并减少SFD的漏失实例。 使用低于正常检测阈值识别输入信号中的候选SFD，并将相应的标记存储在缓冲区中。 对于每个存储的标记，在候选SFD之后的物理层报头用纠错技术进行解码，以确定是否存在不可校正的错误。 如果是，候选人被丢弃，下一个候选人被评估。 如果没有不可校正的错误存在，则候选者被声明为有效的SFD，并且剩余的信号被解码。 可以在允许错误编码和非编码数据包的网络中采用双检测阈值。 还公开了一种用于选择促进更高性能的SFD图案的技术。

    Detection of start frame delimiters in a wireless digital communication system
    2.
    发明授权
    Detection of start frame delimiters in a wireless digital communication system 有权
    无线数字通信系统中起始帧定界符的检测

    公开(公告)号：US08565357B2

    公开(公告)日：2013-10-22

    申请号：US12947341

    申请日：2010-11-16

    申请人： Cristina Seibert ,  Edwin Shearer

    发明人： Cristina Seibert ,  Edwin Shearer

    IPC分类号： H04L27/06

    CPC分类号： H04L7/042 ,  H04L7/048

    摘要： Forward error correction is used in conjunction with detection of a start frame delimiter (SFD) to provide flexibility and to reduce missed instances of an SFD. Candidate SFDs in an incoming signal are identified using a lower-than-normal detection threshold, and corresponding markers are stored in a buffer. For each stored marker, a physical layer header following the candidate SFD is decoded with error-correction techniques, to determine whether uncorrectable errors exist. If so, the candidate is discarded and the next candidate is evaluated. If no uncorrectable errors exist, the candidate is declared a valid SFD, and the remaining signal is decoded. Dual detection thresholds can be employed in networks that permit both error-encoded and non-coded packets. A technique for selecting SFD patterns that facilitate higher performance is also disclosed.

    摘要翻译： 前向纠错与检测起始帧定界符（SFD）一起使用，以提供灵活性并减少SFD的漏失实例。 使用低于正常检测阈值识别输入信号中的候选SFD，并将相应的标记存储在缓冲区中。 对于每个存储的标记，在候选SFD之后的物理层报头用纠错技术进行解码，以确定是否存在不可校正的错误。 如果是，候选人被丢弃，下一个候选人被评估。 如果没有不可校正的错误存在，则候选者被声明为有效的SFD，并且剩余的信号被解码。 可以在允许错误编码和非编码数据包的网络中采用双检测阈值。 还公开了一种用于选择促进更高性能的SFD图案的技术。

    SYSTEMS AND METHODS FOR MULTIMODE SIGNAL ACQUISITION
    3.
    发明申请
    SYSTEMS AND METHODS FOR MULTIMODE SIGNAL ACQUISITION 审中-公开
    多模信号获取系统与方法

    公开(公告)号：US20130028306A1

    公开(公告)日：2013-01-31

    申请号：US13190800

    申请日：2011-07-26

    申请人： Cristina Seibert ,  Edwin Shearer

    发明人： Cristina Seibert ,  Edwin Shearer

    IPC分类号： H04L27/26 ,  H04B17/00

    CPC分类号： H04L27/0012

    摘要： Systems and methods for multimode signal acquisition. The systems include a multimode receiver that is configured to determine a communication mode for a received signal. The receiver includes, for example, one or more analysis modules for analyzing a characteristic of a portion of the received signal (e.g., a preamble). The receiver samples the received signals and one or more analysis modules perform frequency analysis on the digital form of the received signal (e.g., using a Goertzel algorithm). The outputs of the analysis modules are then provided to a classification module. The classification module compares, for example, a power spectral density (“PSD”) value for one or more frequencies of interest specific to the different communication modes to predetermined PSD values at those frequencies to determine the communication mode. The receiver is then configured for the full acquisition of signals transmitted using the determined communication mode.

    摘要翻译： 多模信号采集系统和方法。 该系统包括被配置为确定接收信号的通信模式的多模接收机。 接收机包括例如用于分析接收信号的一部分（例如，前同步码）的特性的一个或多个分析模块。 接收机对接收到的信号进行采样，并且一个或多个分析模块对接收信号的数字形式进行频率分析（例如，使用Goertzel算法）。 然后将分析模块的输出提供给分类模块。 分类模块例如将不同通信模式特有的一个或多个感兴趣频率的功率谱密度（PSD）值与那些频率处的预定PSD值进行比较，以确定通信模式。 然后将接收机配置为完全采集使用所确定的通信模式发送的信号。

    METHODS FOR EARLY TERMINATION OF RECEPTION OF A BIT STREAM
    4.
    发明申请
    METHODS FOR EARLY TERMINATION OF RECEPTION OF A BIT STREAM 审中-公开
    早期终止接收BIT流的方法

    公开(公告)号：US20120300886A1

    公开(公告)日：2012-11-29

    申请号：US13482683

    申请日：2012-05-29

    申请人： Cristina Seibert ,  Edwin Shearer

    发明人： Cristina Seibert ,  Edwin Shearer

    IPC分类号： H04L27/00 ,  H04L27/06

    CPC分类号： H04L1/0054 ,  H04L1/1867

    摘要： A method of receiving a bitstream. The method includes receiving a sequence of bits of a bitstream, assigning a confidence level to each bit in the sequence of bits, maintaining a running confidence level of the sequence of bits as the bits are received, comparing the running confidence level to a threshold, terminating reception of the bitstream when the running confidence level is below the threshold, and requesting retransmission of the bitstream. Wherein the reception of the bitstream and the requesting of retransmission of the bitstream occurs prior to the entire bitstream being received.

    摘要翻译： 一种接收比特流的方法。 该方法包括接收比特流的比特序列，为比特序列中的每个比特分配置信水平，在接收到比特时维持比特序列的运行置信度，将运行的置信度与阈值进行比较， 当所述运行置信度低于所述阈值时终止所述比特流的接收，以及请求所述比特流的重传。 其中比特流的接收和比特流的重发的请求发生在接收到整个比特流之前。

    Wireless Device With Opportunistic Band Access
    5.
    发明申请
    Wireless Device With Opportunistic Band Access 有权
    无线设备与机会带访问

    公开(公告)号：US20110090878A1

    公开(公告)日：2011-04-21

    申请号：US12580741

    申请日：2009-10-16

    申请人： Cristina Seibert ,  Elad Gottlib

    发明人： Cristina Seibert ,  Elad Gottlib

    IPC分类号： H04W4/00

    CPC分类号： H04W72/0453 ,  H04B1/406 ,  H04W4/08 ,  H04W24/00 ,  H04W28/18 ,  H04W72/0486

    摘要： A wireless communication network system includes a plurality of nodes. Each node from the plurality of nodes includes a plurality of communication modules. Each module includes a modem and is configured to operate according to a communication protocol. Each communication module is configured to monitor its own communication parameter data and to cooperate with companion modules of a node by sharing communication parameter data, for instance through a coordination unit. Each communication module is further configured to allow, preferably according to a predefined set of rules, communication using a protocol of one communication module by utilizing a band associated with a companion module. The sharing of communication parameter data between modules may be continuous sharing or periodic sharing.

    摘要翻译： 无线通信网络系统包括多个节点。 来自多个节点的每个节点包括多个通信模块。 每个模块包括一个调制解调器，并被配置为根据通信协议进行操作。 每个通信模块被配置为监视其自己的通信参数数据，并通过例如通过协调单元共享通信参数数据来与节点的配套模块协作。 每个通信模块还被配置为优选地根据预定义的一组规则允许使用一个通信模块的协议通过利用与伴随模块相关联的频带进行通信。 模块之间的通信参数数据的共享可以是连续共享或周期性共享。

    PHYSICALLY SECURED AUTHORIZATION FOR UTILITY APPLICATIONS
    8.
    发明申请
    PHYSICALLY SECURED AUTHORIZATION FOR UTILITY APPLICATIONS 有权
    用于实际应用的物理安全授权

    公开(公告)号：US20120116602A1

    公开(公告)日：2012-05-10

    申请号：US12939702

    申请日：2010-11-04

    申请人： Raj VASWANI ,  Wilson Chuen Yew Yeung ,  Cristina Seibert ,  Nelson Bruce Bolyard ,  Benjamin N. Damm ,  Michael C. StJohns

    发明人： Raj VASWANI ,  Wilson Chuen Yew Yeung ,  Cristina Seibert ,  Nelson Bruce Bolyard ,  Benjamin N. Damm ,  Michael C. StJohns

    IPC分类号： G06F1/26 ,  G06F17/00

    CPC分类号： H04W12/08 ,  G06F21/33 ,  G06F21/602 ,  G06F21/629 ,  G06Q50/06 ,  G07C9/00031 ,  H04L9/0897 ,  H04L9/3268 ,  H04L63/10 ,  H04L63/20

    摘要： To provide overall security to a utility management system, critical command and control messages that are issued to components of the system are explicitly approved by a secure authority. The explicit approval authenticates the requested action and authorizes the performance of the specific action indicated in a message. Key components of the utility management and control system that are associated with access control are placed in a physical bunker. With this approach, it only becomes necessary to bunker those subsystems that are responsible for approving network actions. Other management modules can remain outside the bunker, thereby avoiding the need to partition them into bunkered and non-bunkered components. Access to critical components of each of the non-bunkered subsystems is controlled through the bunkered approval system.

    摘要翻译： 为了向公用事业管理系统提供整体安全性，颁发给系统组件的关键命令和控制消息由安全机构明确批准。 明确的批准验证所请求的操作，并授权执行消息中指示的具体操作。 与访问控制相关联的公用事业管理和控制系统的关键组件放置在物理掩体中。 通过这种方法，只需要对负责批准网络动作的子系统进行掩码。 其他管理模块可以保留在掩体之外，从而避免将其划分为加密和非加密组件。 通过加密批准系统控制对非加载子系统的关键组件的访问。

    Apparatus And Method For Interference Cancellation
    9.
    发明申请
    Apparatus And Method For Interference Cancellation 审中-公开
    干扰消除的装置和方法

    公开(公告)号：US20070297497A1

    公开(公告)日：2007-12-27

    申请号：US11766035

    申请日：2007-06-20

    申请人： Cristina Seibert ,  Dominic Farmer ,  Michael Wengler

    发明人： Cristina Seibert ,  Dominic Farmer ,  Michael Wengler

    IPC分类号： H04B1/00

    CPC分类号： H04B7/0845 ,  H04B1/7107 ,  H04B1/712

    摘要： An apparatus and method for interference cancellation using software or low speed hardware. Antenna signals are received and selected. After selection, interference cancellation processing is applied. In one embodiment, the signal is a spread spectrum signal and selection includes despreading the signal. In one example, the interference cancellation processing includes a phase rotation step and a magnitude manipulation step.

    摘要翻译： 一种使用软件或低速硬件进行干扰消除的装置和方法。 接收和选择天线信号。 选择后，应用干扰消除处理。 在一个实施例中，信号是扩频信号，选择包括解扩信号。 在一个示例中，干扰消除处理包括相位旋转步骤和幅度操纵步骤。