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    • 1. 发明申请
    • System and method for a robust preamble and transmission delimiting in a switched-carrier transceiver
    • 用于在交换载波收发机中限定的鲁棒前导码和传输的系统和方法
    • US20050152404A1
    • 2005-07-14
    • US11076737
    • 2005-03-10
    • Kurt HolmquistJoseph Chapman
    • Kurt HolmquistJoseph Chapman
    • H04L1/00H04L5/16H04L12/56
    • H04L1/0025H04L1/0002
    • A method and system for robust delimiting of messages in switched-carrier operation in which a preamble precedes each message. The preamble comprises symbols transmitted at a rate lower than that of the following data. The lower rate significantly increases the probability that decoding of the preamble symbols will be error-free. Communication line control information can be included in the preamble, thereby ensuring that line control information is reliably transferred over the channel. The preamble's first symbol can be transmitted at the lower symbol rate and at an increased power level, thereby reliably delimiting the beginning of a transmission. The end of the message can be reliably delimited by sending the first symbol which contains only bits from a next cell of information at a lower symbol rate, and including an extra bit in that symbol. The extra bfit can indicate to a receiver when the last cell of information begins.
    • 一种用于在切换载波操作中鲁棒划分消息的方法和系统,其中前导码在每个消息之前。 前导码包括以低于以下数据的速率发送的符号。 较低的速率显着增加了前导码符号的解码将是无错误的概率。 通信线路控制信息可以包括在前导码中,从而确保线路控制信息在信道上被可靠地传送。 前导码的第一个符号可以以较低的符号率和功率电平增加,从而可靠地限定传输的开始。 可以通过以较低的符号率从下一个信息单元中发送仅包含位的第一符号,并且在该符号中包括额外的位,可以可靠地界定消息的结尾。 当最后一个信息单元开始时,额外的装备可以向接收器指示。
    • 2. 发明授权
    • System and method for a robust preamble and transmission delimiting in a switched-carrier transceiver
    • 用于在交换载波收发机中限定的鲁棒前导码和传输的系统和方法
    • US06950444B1
    • 2005-09-27
    • US09637185
    • 2000-08-11
    • Kurt HolmquistJoseph Chapman
    • Kurt HolmquistJoseph Chapman
    • H04L1/00H04L5/16H04L12/56
    • H04L1/0025H04L1/0002
    • A method and system for robust delimiting of transmitted messages in switched-carrier operation in which a preamble precedes each communication message with the preamble comprising symbols transmitted at a rate lower than that of the following data. The lower rate symbols of the preamble significantly increase the probability that the decoder will decode the preamble symbols error free. Communication line control information can be included in the robust preamble, thereby ensuring that line control information is reliably transferred over the communication channel. The first symbol of the preamble can be transmitted at the lower symbol rate and at an increased power level, thereby clearly and reliably delimiting the beginning of a transmission. The end of the communication message can be reliably delimited by sending the first symbol containing only bits from a next cell of information at a lower symbol rate and including an extra bit in that symbol. The extra bit can be set to indicate to a receiver whether the last cell of information has just begun.
    • 一种用于在交换载波操作中鲁棒定界传输消息的方法和系统,其中前导码在每个通信消息之前,前同步码包括以比下列数据低的速率发送的符号。 前导码的较低速率符号显着增加了解码器将无错误地解码前导码符号的概率。 通信线路控制信息可以包括在鲁棒前导码中,从而确保线路控制信息可以通过通信信道被可靠地传送。 前导码的第一个符号可以以较低的符号速率和增加的功率电平发送,从而清晰可靠地限定了传输的开始。 可以通过以较低符号率从下一个信息单元发送仅包含位的第一符号并且包括该符号中的额外位来可靠地限定通信消息的结束。 可以将额外的位设置为向接收器指示信息的最后一个单元格是否刚刚开始。
    • 5. 发明申请
    • METHOD OF SENSOR DATA FUSION FOR PHYSICAL SECURITY SYSTEMS
    • 传感器数据融合方法的物理安全系统
    • US20100134285A1
    • 2010-06-03
    • US12326149
    • 2008-12-02
    • Kurt Holmquist
    • Kurt Holmquist
    • G08B13/00
    • G08B31/00G08B13/2494
    • A method of sensor data fusion in a physical security system of a monitored area is provided. The method comprises receiving data inputs from one or more sensors in the physical security system, with the monitored area being overlaid with a grid defining a plurality of locations. The method further comprise selecting one or more potential paths of one or more potential intruders through the monitored area using an iterative process, which takes into consideration a sequence of sensor inputs and assumed limitations on the mobility of the one or more potential intruders. A confidence metric is then produced for each selected potential path.
    • 提供了在被监视区域的物理安全系统中的传感器数据融合的方法。 所述方法包括从所述物理安全系统中的一个或多个传感器接收数据输入,所述监视区域被覆盖有限定多个位置的网格。 该方法还包括使用迭代过程来选择一个或多个潜在入侵者通过监视区域的一个或多个潜在路径,该迭代过程考虑到传感器输入的序列以及对一个或多个潜在入侵者的移动性的假设限制。 然后为每个选定的可能路径产生置信度量。
    • 7. 发明授权
    • Security system using LADAR-based sensors
    • 使用基于LADAR的传感器的安全系统
    • US08294881B2
    • 2012-10-23
    • US12198678
    • 2008-08-26
    • Dean R. HellicksonKurt HolmquistJames CookAndrew W. GuyetteRobert Burns
    • Dean R. HellicksonKurt HolmquistJames CookAndrew W. GuyetteRobert Burns
    • G01C3/08
    • G01S17/023G01S7/4802G01S17/42G01S17/89G01S19/13G08B13/181G08B13/19645
    • A security sensor system comprises one or more laser detection and ranging (LADAR) sensors configured for accumulation of three-dimensional image data. In one embodiment, the one or more LADAR sensors each comprise a LADAR device, such as a MEMS device, configured to transmit a plurality of laser pulses, and a microprocessor operatively coupled to the LADAR device. One or more data storage devices is operatively coupled to the microprocessor and configured to store the three-dimensional image data, as well as predetermined protected area boundary and fixed object definitions. A GPS receiver can be operatively coupled to the microprocessor and a GPS antenna. The microprocessor is configured to perform a LADAR image analysis that compares the three-dimensional image data with the protected area boundary and fixed object definitions to identify one or more potential intruders.
    • 安全传感器系统包括被配置用于累积三维图像数据的一个或多个激光检测和测距(LADAR)传感器。 在一个实施例中,一个或多个LADAR传感器各自包括被配置为传输多个激光脉冲的LADAR装置,诸如MEMS装置,以及可操作地耦合到LADAR装置的微处理器。 一个或多个数据存储设备可操作地耦合到微处理器并被配置为存储三维图像数据以及预定的保护区域边界和固定对象定义。 GPS接收机可以可操作地耦合到微处理器和GPS天线。 微处理器被配置为执行将三维图像数据与保护区边界和固定对象定义进行比较的LADAR图像分析,以识别一个或多个潜在入侵者。
    • 8. 发明授权
    • System and method of automatically maintaining a line-of-sight communication channel
    • 自动维护视线通信通道的系统和方法
    • US08078207B2
    • 2011-12-13
    • US12506730
    • 2009-07-21
    • Robert BurnsKurt HolmquistDean R. Hellickson
    • Robert BurnsKurt HolmquistDean R. Hellickson
    • H04B7/00
    • H04W76/14H04B17/309H04W64/00H04W72/00
    • One exemplary embodiment is directed to a method of automatically maintaining a line-of-sight communication channel. The method comprises determining information about each communication resource that is accessible in a region through which a mobile system is moving. The method further comprises determining information about the mobile system. The method further comprises performing a line-of-sight (LOS) analysis for each of the communication resources based at least in part on a respective location and a respective elevation for the respective communication resource and the current location of the mobile system and a current elevation for the mobile system. The method further comprises determining if a new communication link should be established with at least one of the communication resources based at least on the LOS analyses that were performed and establishing the new communication link if it is determined that the new communication link should be established.
    • 一个示例性实施例涉及一种自动维持视线通信信道的方法。 该方法包括确定关于移动系统正在移动的区域中可访问的每个通信资源的信息。 该方法还包括确定关于移动系统的信息。 该方法还包括至少部分地基于各个通信资源的相应位置和相应高程以及移动系统的当前位置和当前的当前位置来执行每个通信资源的视距(LOS)分析 高程为移动系统。 所述方法还包括:如果确定应该建立新的通信链路,则至少基于所执行的LOS分析来确定是否应该与至少一个通信资源建立新的通信链路,并建立新的通信链路。
    • 9. 发明授权
    • Systems and methods for providing communication between an ATM layer device and multiple multi-channel physical layer devices
    • 用于在ATM层设备和多个多通道物理层设备之间提供通信的系统和方法
    • US07023829B1
    • 2006-04-04
    • US09871351
    • 2001-05-31
    • Kurt HolmquistEd Thoenes
    • Kurt HolmquistEd Thoenes
    • H04Q7/28H04L12/28H04H1/00
    • H04L12/5601H04L47/10H04L47/24H04L49/309H04L2012/5651H04L2012/5665H04L2012/5679
    • Systems and methods are provided for providing communication between an ATM layer device and multiple multi-channel PHY layer devices, which increase the number of multi-channel PHY layer ports supported by the ATM layer device. In general, one such system comprises an ATM layer device that supports a plurality of ATM communication channels in which each of the plurality of ATM communications channels correspond to a first class of service or a second class of service, a plurality of physical layer devices each having a first channel port associated with the first class of service and a second channel port associated with the second class of service, and a local interface in communication with the ATM layer device and the plurality of physical layer devices for establishing a plurality of channel connections between each of the plurality of ATM communication channels and the first channel port and the second channel port in each of the plurality of physical layer devices, the local interface having a plurality of addresses. In the system, each of the plurality of channel connections associated with the plurality of second channel ports is via one of the plurality of addresses and at least two of the plurality of channel connections associated with the plurality of first channel ports is via no more than one of the plurality of addresses. In this manner, the system increases the number of physical layer devices communicating with the ATM layer.
    • 提供了用于提供ATM层设备和多个多信道PHY层设备之间的通信的系统和方法,其增加了由ATM层设备支持的多信道PHY层端口的数量。 通常,一个这样的系统包括支持多个ATM通信信道的ATM层设备,其中多个ATM通信信道中的每一个对应于第一类服务或第二类服务,多个物理层设备 具有与第一类服务相关联的第一通道端口和与第二类服务相关联的第二通道端口,以及与ATM层设备和多个物理层设备通信的本地接口,用于建立多个通道连接 在所述多个ATM通信信道中的每一个与所述多个物理层设备中的每一个中的所述第一信道端口和所述第二信道端口之间,所述本地接口具有多个地址。 在该系统中,与多个第二信道端口相关联的多个信道连接中的每一个通过多个地址中的一个,并且与多个第一信道端口相关联的多个信道连接中的至少两个通道不超过 多个地址之一。 以这种方式,系统增加与ATM层通信的物理层设备的数量。