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公开(公告)号：US20090122781A1
公开(公告)日：2009-05-14
申请号：US11937015
申请日：2007-11-08
IPC分类号： H04J3/06
CPC分类号： H04J3/0667 , H04J3/0679 , H04W56/009 , Y02D70/164
摘要： An ad hoc method is provided for synchronizing a wireless network. The method involves broadcasting a first signal including a join message from a first node (FN). The method also involves saving a first timestamps in a memory device internal to the FN after broadcasting the first signal. The method further involves generating a signal including a join response message after receiving the first signal. The join response message is comprised of a second timestamp indicating a local time during which the first signal was received at the second node (SN). The method also includes the step of determining an initial time offset by computing a difference between the first timestamp and the second timestamp. The method further includes the steps of generating a request to send (RTS) message at the FN. The FN uses the initial time offset in conjunction with the RTS message to asynchronously communicate with the SN.
摘要翻译： 提供了一种用于同步无线网络的自组织方法。 该方法涉及从第一节点（FN）广播包括加入消息的第一信号。 该方法还包括在广播第一信号之后将第一时间戳保存在FN内部的存储器设备中。 该方法还包括在接收到第一信号之后产生包括连接响应消息的信号。 连接响应消息包括指示在第二节点（SN）处接收到第一信号的本地时间的第二时间戳。 该方法还包括通过计算第一时间戳和第二时间戳之间的差来确定初始时间偏移的步骤。 该方法还包括以下步骤：在FN处产生发送（RTS）消息的请求。 FN使用与RTS消息结合的初始时间偏移量与SN异步通信。
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公开(公告)号：US08331240B2
公开(公告)日：2012-12-11
申请号：US11937002
申请日：2007-11-08
申请人： Paul Voglewede , Peter J. Roth
发明人： Paul Voglewede , Peter J. Roth
IPC分类号： G01R31/08
CPC分类号： H04L43/00 , H04L12/189 , H04L29/12339 , H04L43/0811 , H04L43/0829 , H04L61/2503
摘要： A method (500) is provided for enabling a promiscuous monitoring of network communications by a monitor node (MN). The method includes the steps of: generating a directed IP packet at a first node (FN); transmitting a first unicast signal including a RTS message from the FN to a second node (SN); transmitting a second unicast signal including a CTS message from the SN to the FN in response to the first unicast signal; modifying the directed IP packet by changing an IP destination address of the directed IP packet to an IP subnet broadcast address; transmitting a uni-broadcast signal including the modified directed IP packet from the FN to the IP subnet broadcast address; and receiving the uni-broadcast signal at the SN and a third node (TN). The TN is an IP-enabled device provided to monitor network communications between the FN and SN.
摘要翻译： 提供了一种方法（500），用于实现监视节点（MN）的网络通信的混杂监视。 该方法包括以下步骤：在第一节点（FN）处生成有向IP分组; 将包括RTS消息的第一单播信号从FN发送到第二节点（SN）; 响应于第一单播信号，从SN向FN发送包括CTS消息的第二单播信号; 通过将有向IP分组的IP目的地址改变为IP子网广播地址来修改有向IP分组; 将包括修改的有向IP分组的单播广播信号从FN发送到IP子网广播地址; 以及在SN和第三节点（TN）处接收单播广播信号。 TN是一个支持IP的设备，用于监控FN和SN之间的网络通信。
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公开(公告)号：US07903601B2
公开(公告)日：2011-03-08
申请号：US11937015
申请日：2007-11-08
CPC分类号： H04J3/0667 , H04J3/0679 , H04W56/009 , Y02D70/164
摘要： An ad hoc method is provided for synchronizing a wireless network. The method involves broadcasting a first signal including a join message from a first node (FN). The method also involves saving a first timestamps in a memory device internal to the FN after broadcasting the first signal. The method further involves generating a signal including a join response message after receiving the first signal. The join response message is comprised of a second timestamp indicating a local time during which the first signal was received at the second node (SN). The method also includes the step of determining an initial time offset by computing a difference between the first timestamp and the second timestamp. The method further includes the steps of generating a request to send (RTS) message at the FN. The FN uses the initial time offset in conjunction with the RTS message to asynchronously communicate with the SN.
摘要翻译： 提供了一种用于同步无线网络的自组织方法。 该方法涉及从第一节点（FN）广播包括加入消息的第一信号。 该方法还包括在广播第一信号之后将第一时间戳保存在FN内部的存储器设备中。 该方法还包括在接收到第一信号之后产生包括连接响应消息的信号。 连接响应消息包括指示在第二节点（SN）处接收到第一信号的本地时间的第二时间戳。 该方法还包括通过计算第一时间戳和第二时间戳之间的差来确定初始时间偏移的步骤。 该方法还包括以下步骤：在FN处产生发送（RTS）消息的请求。 FN使用与RTS消息结合的初始时间偏移量与SN异步通信。
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公开(公告)号：US20090122709A1
公开(公告)日：2009-05-14
申请号：US11937002
申请日：2007-11-08
申请人： Paul Voglewede , Peter J. Roth
发明人： Paul Voglewede , Peter J. Roth
IPC分类号： G06F11/00
CPC分类号： H04L43/00 , H04L12/189 , H04L29/12339 , H04L43/0811 , H04L43/0829 , H04L61/2503
摘要： A method (500) is provided for enabling a promiscuous monitoring of network communications by a monitor node (MN). The method includes the steps of: generating a directed IP packet at a first node (FN); transmitting a first unicast signal including a RTS message from the FN to a second node (SN); transmitting a second unicast signal including a CTS message from the SN to the FN in response to the first unicast signal; modifying the directed IP packet by changing an IP destination address of the directed IP packet to an IP subnet broadcast address; transmitting a uni-broadcast signal including the modified directed IP packet from the FN to the IP subnet broadcast address; and receiving the uni-broadcast signal at the SN and a third node (TN). The TN is an IP-enabled device provided to monitor network communications between the FN and SN.
摘要翻译： 提供了一种方法（500），用于实现监视节点（MN）的网络通信的混杂监视。 该方法包括以下步骤：在第一节点（FN）处生成有向IP分组; 将包括RTS消息的第一单播信号从FN发送到第二节点（SN）; 响应于第一单播信号，从SN向FN发送包括CTS消息的第二单播信号; 通过将有向IP分组的IP目的地址改变为IP子网广播地址来修改有向IP分组; 将包括修改的有向IP分组的单播广播信号从FN发送到IP子网广播地址; 以及在SN和第三节点（TN）处接收单播广播信号。 TN是一个支持IP的设备，用于监控FN和SN之间的网络通信。
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公开(公告)号：US20070195913A1
公开(公告)日：2007-08-23
申请号：US11651566
申请日：2007-01-10
申请人： Clifford Hessel , Paul Voglewede
发明人： Clifford Hessel , Paul Voglewede
CPC分类号： H04L27/0014 , H04L2027/0024 , H04L2027/0055 , H04L2027/0077
摘要： A novel system and method is disclosed for maintaining synchronization in a communication system in which a communication signal comprising a carrier and a data signal is sent from a transmitter to a receiver which includes a phase lock loop. The receiver compares the output of a Viterbi decoder with the output of a quick decision circuit. The Viterbi decoder, which incorporates traceback, determines the minimum aggregate Euclidean distance for multiple symbols. The quick decision circuit determines the minimum Euclidean distance for a single symbol without decoding the symbol. A delay circuit is placed in series with the quick decision circuit to compensate for the traceback delay in the Viterbi decoder. If the difference in the output signals of the Viterbi decoder and the quick decision circuit is greater than a predetermined threshold, the phase error signal in the phase lock loop is prevented from updating the phase lock loop filter. A synchronization loss detector may also be used to prevent the phase error signal from updating the phase lock loop filter if synchronization loss is detected. Additionally, the output signal from the Viterbi decoder is used to extract the carrier from the received communication signal by use of a lookup table to generate phase angle information as a function of the Viterbi decoder output signal. The phase angle information is combined with the Viterbi decoder output signal to reconstitute the data signal in the communication signal. The reconstituted data signal is combined with the communication signal, which has been delayed to compensate for the traceback delay in the Viterbi decoder, in order to extract the carrier.
摘要翻译： 公开了一种新颖的系统和方法，用于在包括载波和数据信号的通信信号从发射机发送到包括锁相环的接收机的通信系统中保持同步。 接收机将维特比解码器的输出与快速判定电路的输出进行比较。 包含追溯的维特比解码器确定多个符号的最小聚合欧几里德距离。 快速判决电路确定单个符号的最小欧几里德距离，而不对码元进行解码。 延迟电路与快速判定电路串联放置以补偿维特比解码器中的回溯延迟。 如果维特比解码器和快速判定电路的输出信号的差大于预定阈值，则防止锁相环中的相位误差信号更新锁相环滤波器。 如果检测到同步丢失，则同步丢失检测器也可用于防止相位误差信号更新锁相环滤波器。 此外，来自维特比解码器的输出信号用于通过使用查找表从接收到的通信信号中提取载波，以产生作为维特比解码器输出信号的函数的相位角信息。 相位角信息与维特比解码器输出信号组合，以重构通信信号中的数据信号。 重构的数据信号与已被延迟以补偿维特比解码器中的回溯延迟的通信信号组合，以便提取载波。
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6.发明申请公开(公告)号：US20090316754A1
公开(公告)日：2009-12-24
申请号：US12548574
申请日：2009-08-27
IPC分类号： H04B1/00
CPC分类号： H04L1/0047 , H04B1/713 , H04L1/0071 , H04L1/205 , H04L25/069
摘要： An improved method is provided for decoding data in a frequency hopping communications system. The method includes: monitoring transition points between data bits in a demodulated data stream, where the data bits are transmitted to a receiver over different transmission frequencies; determining a frequency over which data bits are transmitted to the receiver; determining a reliability metric for each frequency over which data bits were received, where the reliability metric is based on transition points of data bits transmitted over a given frequency; and performing a decoding operation using the reliability metric for each frequency over which data bits were received.
摘要翻译： 提供了一种用于在跳频通信系统中对数据进行解码的改进方法。 该方法包括：监视解调数据流中的数据位之间的转换点，其中数据位在不同的传输频率上发送到接收机; 确定将数据位发送到接收机的频率; 确定接收到数据比特的每个频率的可靠性度量，其中可靠性度量基于在给定频率上传输的数据比特的转换点; 以及使用针对接收到数据比特的每个频率的可靠性度量来执行解码操作。
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公开(公告)号：US07633391B2
公开(公告)日：2009-12-15
申请号：US11598911
申请日：2006-11-14
申请人： Paul Voglewede , Scott Cloutier , Robert Post
发明人： Paul Voglewede , Scott Cloutier , Robert Post
IPC分类号： G08B13/00
摘要： An unattended sensor is provided for use in a surveillance system. The sensor is generally comprised of: a detector that generates an electrical signal in response to a physical stimulus proximate to the sensor; a signal processor adapted to receive the electrical signal from the detector and operable to generate an event message based on the electrical signal; a transceiver operable to send and receive messages over a wireless radio link; and a channel access mechanism operable to negotiate access to the radio link in accordance with an access protocol, where the access protocol is employed by radios and other communication devices in the system.
摘要翻译： 提供无人值守的传感器用于监视系统。 传感器通常包括：响应于靠近传感器的物理刺激而产生电信号的检测器; 信号处理器，其适于从所述检测器接收电信号并且可操作以基于所述电信号产生事件消息; 收发器，其可操作以通过无线无线电链路发送和接收消息; 以及可以根据访问协议来协商对无线电链路的接入的信道接入机制，其中接入协议由系统中的无线电和其他通信设备采用。
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8.发明授权Voice-aided unattended surveillance sensor deployment system and associated methods 有权语音辅助无人值守监控传感器部署系统及相关方法公开(公告)号：US07898408B2
公开(公告)日：2011-03-01
申请号：US12265077
申请日：2008-11-05
CPC分类号： G08B25/009 , G08B13/00 , G08B25/10 , H04M11/007
摘要： The surveillance system includes a remote monitoring station, at least one mobile radio (e.g. a handheld radio), and one or more deployable sensors each for unattended surveillance to transmit a detection signal in response to a detected activity. A deployable gateway surveillance node includes a controller and at least one wireless transceiver cooperating therewith to transmit a notification to the remote monitoring station based upon a received detection signal, and determine and transmit a voice-message status report, based upon the received detection signal, to the at least one mobile radio identifying the deployable gateway surveillance node and corresponding deployable sensor for the received detection signal. The voice message status report may further include information regarding a status of a communication link between the deployable gateway surveillance node and the remote monitoring station, a received detection signal strength, detected activity information and/or a status of a positioning information communication link between the deployable gateway surveillance node and a positioning/navigation system.
摘要翻译： 监视系统包括远程监视站，至少一个移动无线电（例如，手持无线电）和一个或多个可部署的传感器，每个用于无人值守监视以响应于检测到的活动而发送检测信号。 可部署网关监控节点包括控制器和与其配合的至少一个无线收发器，用于根据接收到的检测信号向远程监控站发送通知，并且基于所接收的检测信号确定和发送语音消息状态报告， 到所述至少一个移动无线电台，识别所述可部署网关监视节点和所接收的检测信号的相应的可部署传感器。 语音消息状态报告还可以包括关于可部署网关监视节点和远程监控站之间的通信链路的状态的信息，接收到的检测信号强度，检测到的活动信息和/或位置信息通信链路的状态 可部署网关监控节点和定位/导航系统。
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公开(公告)号：US20100079594A1
公开(公告)日：2010-04-01
申请号：US12239003
申请日：2008-09-26
申请人： Paul Voglewede , Jeffrey Zampieron , Geoffrey Amey
发明人： Paul Voglewede , Jeffrey Zampieron , Geoffrey Amey
CPC分类号： G06K9/00771 , H04N7/183 , H04N7/20
摘要： The unattended surveillance device may include a housing to be positioned for unattended surveillance, a video camera associated with or carried by the housing to capture video, and an image processor carried by the housing and cooperating with the video camera. The image processor extracts moving objects in the foreground of the captured video, generates a profile image or sequence of profile images of the extracted moving objects, compresses the sequence of profile images, and generates a surveillance information packet based upon the compressed sequence of profile images. Also, a wireless transmitter or transceiver may be associated with the image processor to transmit the surveillance information packet to a surveillance monitoring station.
摘要翻译： 无人看管的监视装置可以包括要被定位用于无人值守监视的壳体，与壳体相关联或由其携带以捕获视频的摄像机，以及由所述壳体携带并与所述摄像机配合的图像处理器。 图像处理器提取拍摄视频的前景中的移动对象，生成所提取的运动对象的轮廓图像或轮廓图像序列，压缩轮廓图像的序列，并且基于轮廓图像的压缩序列生成监视信息分组 。 此外，无线发射器或收发器可以与图像处理器相关联，以将监视信息包发送到监视监视站。
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10.发明授权公开(公告)号：US07653117B2
公开(公告)日：2010-01-26
申请号：US11377491
申请日：2006-03-16
IPC分类号： H04B1/00
CPC分类号： H04L1/0047 , H04B1/713 , H04L1/0071 , H04L1/205 , H04L25/069
摘要： An improved method is provided for decoding data in a frequency hopping communications system. The method includes: monitoring transition points between data bits in a demodulated data stream, where the data bits are transmitted to a receiver over different transmission frequencies; determining a frequency over which data bits are transmitted to the receiver; determining a reliability metric for each frequency over which data bits were received, where the reliability metric is based on transition points of data bits transmitted over a given frequency; and performing a decoding operation using the reliability metric for each frequency over which data bits were received.
摘要翻译： 提供了一种用于在跳频通信系统中对数据进行解码的改进方法。 该方法包括：监视解调数据流中的数据位之间的转换点，其中数据位在不同的传输频率上发送到接收机; 确定将数据位发送到接收机的频率; 确定接收到数据比特的每个频率的可靠性度量，其中可靠性度量基于在给定频率上传输的数据比特的转换点; 以及使用针对接收到数据比特的每个频率的可靠性度量来执行解码操作。
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