公开(公告)号：US08477787B2

公开(公告)日：2013-07-02

申请号：US12956096

申请日：2010-11-30

申请人： Urs Hunkeler ,  Hong Linh Truong ,  Beat Weiss

发明人： Urs Hunkeler ,  Hong Linh Truong ,  Beat Weiss

IPC分类号： H04L12/56

CPC分类号： H04L45/36 ,  H04L45/34 ,  H04L45/66

摘要： A data network includes a plurality of source nodes, at least one sink node, and at least one intermediate node, wherein routing of a reverse message from the sink node to a source node via at least one intermediate node is performed by the intermediate node using reverse path routing information data comprising a combination of source routing information data and transparent bridging information data, wherein the reverse path routing information data is constructed during propagation of a forward message from the source node to the sink node via the intermediate node.

摘要翻译： 数据网络包括多个源节点，至少一个汇聚节点和至少一个中间节点，其中，通过中间节点，通过中间节点将反向消息从汇聚节点路由到源节点，使用 反向路径路由信息数据，其包括源路由信息数据和透明桥接信息数据的组合，其中，在通过所述中间节点从所述源节点传播到所述宿节点的转发消息期间，构建所述反向路径路由信息数据。

公开(公告)号：US20090286548A1

公开(公告)日：2009-11-19

申请号：US12121916

申请日：2008-05-16

申请人： Pedro E. Coronel ,  Wolfgang H. Schott ,  Beat Weiss

发明人： Pedro E. Coronel ,  Wolfgang H. Schott ,  Beat Weiss

IPC分类号： H04Q7/20

CPC分类号： H04W4/20

摘要： Packets are periodically transmitted by a plurality of radio beacons deployed at known positions over a location estimation area. Monitoring is conducted for incoming packets. Upon receipt of a packet from a kth one of the beacons, received signal strength, RSSI, is measured at each of the antenna outputs, the packet is decoded to obtain the unique identifier and the unique sequence number, and the received signal strength at each of the antenna outputs is spatially averaged. The measuring, decoding, and spatial averaging are repeated for additional packets from the kth one of the beacons during a pre-defined time window T. The plurality of spatially averaged received signal strengths are temporally averaged over the pre-defined time window T, to obtain a spatially and temporally averaged value of received signal strength. The distance dk from the apparatus to the kth one of the beacons is approximated based on the spatially and temporally averaged value of received signal strength. The approximate distance dk is designated as {circumflex over (d)}k. This is repeated for the K beacons that have successfully transmitted packet(s) during the pre-defined time window, k=1 to K. The location of the object is estimated as an approximate intersection of spheres with radii {circumflex over (d)}k. Each sphere is centered at the known position of the kth one of the beacons.

摘要翻译： 分组通过部署在位置估计区域上的已知位置的多个无线电信标周期性地发送。 对传入的数据包进行监控。 在从第k个信标中接收到分组时，在每个天线输出处测量接收信号强度RSSI，对分组进行解码以获得唯一标识符和唯一序列号，并且在每个天线输出处接收信号强度 的天线输出在空间上平均。 在预定义的时间窗口T期间，对来自第k个信标的附加分组重复测量，解码和空间平均。多个空间平均的接收信号强度在预定义的时间窗口T上进行时间平均， 获得接收信号强度的空间和时间平均值。 基于接收信号强度的空间和时间平均值，近似从设备到第k个信标的距离dk。 近似距离dk被指定为（d（d）} k的回旋。 对于在预定时间窗口（k = 1到K）内已经成功传输分组的K个信标重复这一点。该对象的位置被估计为具有半径的球体的近似交点{（d） } k。 每个球体都位于第k个信标的已知位置。

公开(公告)号：US20110128962A1

公开(公告)日：2011-06-02

申请号：US12956096

申请日：2010-11-30

申请人： Urs Hunkeler ,  Hong Linh Truong ,  Beat Weiss

发明人： Urs Hunkeler ,  Hong Linh Truong ,  Beat Weiss

IPC分类号： H04L12/56

CPC分类号： H04L45/36 ,  H04L45/34 ,  H04L45/66

摘要： A data network includes a plurality of source nodes, at least one sink node, and at least one intermediate node, wherein routing of a reverse message from the sink node to a source node via at least one intermediate node is performed by the intermediate node using reverse path routing information data comprising a combination of source routing information data and transparent bridging information data, wherein the reverse path routing information data is constructed during propagation of a forward message from the source node to the sink node via the intermediate node.

摘要翻译： 数据网络包括多个源节点，至少一个汇聚节点和至少一个中间节点，其中，通过中间节点，通过中间节点将反向消息从汇聚节点路由到源节点，使用 反向路径路由信息数据，其包括源路由信息数据和透明桥接信息数据的组合，其中，在通过所述中间节点从所述源节点传播到所述宿节点的转发消息期间，构建所述反向路径路由信息数据。

公开(公告)号：US20080004796A1

公开(公告)日：2008-01-03

申请号：US11428019

申请日：2006-06-30

申请人： Wolfgang Hans Schott ,  Simeon Furrer ,  Beat Weiss

发明人： Wolfgang Hans Schott ,  Simeon Furrer ,  Beat Weiss

IPC分类号： G01C21/00

CPC分类号： G01C21/005

摘要： An apparatus and method is disclosed for efficiently sensing and tracking objects in an indoor environment by simultaneously measuring the object movement with an inertial navigation system and a reference location positioning system. By combining the measurements obtained with accelerometers, gyroscopes, angle estimators and the reference system using an extended Kalman filter based approach, a position estimate is obtained with high reliability and precision accuracy. Improvement in performance is obtained by the incorporation of dynamic mode switching and forward-backward smoothing in the location position estimator.

摘要翻译： 公开了一种用于通过利用惯性导航系统和参考位置定位系统同时测量物体运动来在室内环境中有效地感测和跟踪物体的装置和方法。 通过使用加速度计，陀螺仪，角度估计器和使用基于扩展卡尔曼滤波的方法的参考系统组合所获得的测量结果，以高可靠性和精度精度获得位置估计。 通过在位置位置估计器中并入动态模式切换和前后平滑来获得性能的提高。

公开(公告)号：US06424442B1

公开(公告)日：2002-07-23

申请号：US08793994

申请日：1997-02-25

申请人： Fritz Gfeller ,  Heinz Richard ,  Beat Weiss

发明人： Fritz Gfeller ,  Heinz Richard ,  Beat Weiss

IPC分类号： H04B1000

CPC分类号： H04B10/1143 ,  H04B10/40

摘要： Disclosed are optical transmitter and transceiver modules for data communication. Such a transceiver module comprises an array of light emitting diodes mounted on a mounting base (140) being arranged in a regular and symmetrical manner in a dome-shaped housing (142). This housing (142) comprises diffusor means for source enlargement. In addition to the transmitter part consisting of said diodes, the transceiver module comprises a receiver. The receiver has four photodiodes (143) arranged below the mounting base (140). These photodiodes are tilted and face in different directions to receive light from all around the module. The photodiodes are protected by a thin wire mesh (145) which serves as Faraday cage to reduce electro magnetic interference. A substrate (144) for electronic circuitry in SMD-Technology is situated underneath the photodiodes (143).

摘要翻译： 公开了用于数据通信的光发射机和收发器模块。 这种收发器模块包括安装在安装基座（140）上的发光二极管阵列，其以规则和对称的方式布置在圆顶形壳体（142）中。 该壳体（142）包括用于放大源的扩散器装置。 除了由所述二极管组成的发射器部分之外，收发器模块还包括接收器。 接收器具有布置在安装基座（140）下方的四个光电二极管（143）。 这些光电二极管倾斜并面向不同的方向，以接收来自模块周围的光。 光电二极管由用作法拉第笼的细金属丝网（145）保护，以减少电磁干扰。 用于SMD技术中的电子电路的衬底（144）位于光电二极管（143）的下方。

公开(公告)号：US20060164271A1

公开(公告)日：2006-07-27

申请号：US10548749

申请日：2004-03-08

申请人： Walter Hirt ,  Fritz Gfeller ,  Beat Weiss

发明人： Walter Hirt ,  Fritz Gfeller ,  Beat Weiss

IPC分类号： H03M3/00

CPC分类号： H04B1/7176 ,  H04B1/7174 ,  H04W4/18

摘要： The invention relates to a conversion of a pulse modulated signal to a radio frequency signal enableing use of applications and protocols designed for wireless optical links on radio frequency channels. The method comprises receiving the pulse modulated input signal, decoding the received pulse modulated input signal into a decoded data bit-stream, encoding the decoded data bit-stream into a recoded data bit-stream, under use of the recoded data bit-stream modulating a radio frequency signal, and transmitting the modulated radio frequency signal. In the receiver path a received radio frequency signal is converted to a pulse modulated output signal by the steps of demodulating the received radio frequency signal into a demodulated data bit-stream, decoding the demodulated data bit-stream into a received data bit-stream, encoding the received data bit-stream into a pulse modulated output signal, and forwarding the pulse modulated output signal.

摘要翻译： 本发明涉及将脉冲调制信号转换成射频信号，从而能够使用针对射频信道上的无线光链路设计的应用和协议。 该方法包括接收脉冲调制输入信号，将接收到的脉冲调制输入信号解码成解码数据比特流，在解码数据比特流中使用重新编码的数据比特流调制 射频信号，并发送调制的射频信号。 在接收机路径中，接收到的射频信号通过以下步骤转换成脉冲调制输出信号：将接收的射频信号解调成解调数据比特流，将解调的数据比特流解码为接收的数据比特流， 将接收到的数据比特流编码为脉冲调制输出信号，并转发脉冲调制输出信号。

公开(公告)号：US08086248B2

公开(公告)日：2011-12-27

申请号：US12121916

申请日：2008-05-16

申请人： Pedro E. Coronel ,  Wolfgang H. Schott ,  Beat Weiss

发明人： Pedro E. Coronel ,  Wolfgang H. Schott ,  Beat Weiss

IPC分类号： H04W24/00 ,  H04M11/04

CPC分类号： H04W4/20

摘要： Packets are periodically transmitted by a plurality of radio beacons deployed at known positions over a location estimation area. Monitoring is conducted for incoming packets. Upon receipt of a packet from a kth one of the beacons, received signal strength, RSSI, is measured at each of the antenna outputs, the packet is decoded to obtain the unique identifier and the unique sequence number, and the received signal strength at each of the antenna outputs is spatially averaged. The measuring, decoding, and spatial averaging are repeated for additional packets from the kth one of the beacons during a pre-defined time window T. The plurality of spatially averaged received signal strengths are temporally averaged over the pre-defined time window T, to obtain a spatially and temporally averaged value of received signal strength. The distance dk from the apparatus to the kth one of the beacons is approximated based on the spatially and temporally averaged value of received signal strength. The approximate distance dk is designated as {circumflex over (d)}k. This is repeated for the K beacons that have successfully transmitted packet(s) during the pre-defined time window, k=1 to K. The location of the object is estimated as an approximate intersection of spheres with radii {circumflex over (d)}k. Each sphere is centered at the known position of the kth one of the beacons.

摘要翻译： 分组通过部署在位置估计区域上的已知位置的多个无线电信标周期性地发送。 对传入的数据包进行监控。 在从第k个信标中接收到分组时，在每个天线输出处测量接收信号强度RSSI，对分组进行解码以获得唯一标识符和唯一序列号，并且在每个天线输出处接收信号强度 的天线输出在空间上平均。 在预定义的时间窗口T期间，对来自第k个信标的附加分组重复测量，解码和空间平均。多个空间平均的接收信号强度在预定义的时间窗口T上进行时间平均， 获得接收信号强度的空间和时间平均值。 基于接收信号强度的空间和时间平均值，近似从设备到第k个信标的距离dk。 近似距离dk被指定为（d（d）} k的回旋。 对于在预定时间窗口（k = 1到K）内已经成功传输分组的K个信标重复这一点。该对象的位置被估计为具有半径的球体的近似交点{（d） } k。 每个球体都位于第k个信标的已知位置。

公开(公告)号：US20090323510A1

公开(公告)日：2009-12-31

申请号：US10585390

申请日：2004-11-19

申请人： Simeon Furrer ,  Jens Jelitto ,  Wolfgang Schott ,  Beat Weiss

发明人： Simeon Furrer ,  Jens Jelitto ,  Wolfgang Schott ,  Beat Weiss

IPC分类号： H04J11/00 ,  H04K1/10

CPC分类号： H04L27/2634 ,  H04L27/265

摘要： The invention relates to a method for modulating sub-carrier symbols to an intermediate-frequency OFDM signal having even and odd samples, including following steps: transforming a number N of the sub-carrier symbols to pre-processed sub-carrier symbols; performing a complex inverse discrete Fourier transformation (IDFT) on the pre-processed sub-carrier symbols to generate complex output symbols; and transforming the complex output symbols to the intermediate-frequency OFDM signal, wherein the sub-carrier symbols are transformed so that the even and odd samples of the intermediate-frequency OFDM signal are given by real and imaginary parts of the complex output symbols.

摘要翻译： 本发明涉及一种用于将子载波符号调制为具有偶数和奇数样本的中频OFDM信号的方法，包括以下步骤：将N个子载波符号变换为预处理的子载波符号; 对预处理的子载波符号执行复数离散傅立叶逆变换（IDFT）以产生复数输出符号; 并将所述复数输出符号变换为所述中频OFDM信号，其中对所述子载波符号进行变换，使得所述中频OFDM信号的偶数和奇数样本由所述复数输出符号的实部和虚部给出。

公开(公告)号：US07761233B2

公开(公告)日：2010-07-20

申请号：US11428019

申请日：2006-06-30

申请人： Wolfgang Hans Schott ,  Simeon Furrer ,  Beat Weiss

发明人： Wolfgang Hans Schott ,  Simeon Furrer ,  Beat Weiss

IPC分类号： G01C21/20

CPC分类号： G01C21/005

摘要： An apparatus and method is disclosed for efficiently sensing and tracking objects in an indoor environment by simultaneously measuring the object movement with an inertial navigation system and a reference location positioning system. By combining the measurements obtained with accelerometers, gyroscopes, angle estimators and the reference system using an extended Kalman filter based approach, a position estimate is obtained with high reliability and precision accuracy. Improvement in performance is obtained by the incorporation of dynamic mode switching and forward-backward smoothing in the location position estimator.

摘要翻译： 公开了一种用于通过利用惯性导航系统和参考位置定位系统同时测量物体运动来在室内环境中有效地感测和跟踪物体的装置和方法。 通过使用加速度计，陀螺仪，角度估计器和使用基于扩展卡尔曼滤波的方法的参考系统组合所获得的测量结果，以高可靠性和精度精度获得位置估计。 通过在位置位置估计器中并入动态模式切换和前后平滑来获得性能的提高。

公开(公告)号：US07356019B2

公开(公告)日：2008-04-08

申请号：US10548749

申请日：2004-03-08

申请人： Walter Hirt ,  Fritz Gfeller ,  Beat Weiss

发明人： Walter Hirt ,  Fritz Gfeller ,  Beat Weiss

IPC分类号： H04B17/02

CPC分类号： H04B1/7176 ,  H04B1/7174 ,  H04W4/18

摘要： The invention relates to a conversion of a pulse modulated signal to a radio frequency signal enabling use of applications and protocols designed for wireless optical links on radio frequency channels. The method comprises receiving the pulse modulated input signal, decoding the received pulse modulated input signal into a decoded data bit-stream, encoding the decoded data bit-stream into a recoded data bit-stream, under use of the recoded data bit-stream modulating a radio frequency signal, and transmitting the modulated radio frequency signal. In the receiver path a received radio frequency signal is converted to a pulse modulated output signal by the steps of demodulating the received radio frequency signal into a demodulated data bit-stream, decoding the demodulated data bit-stream into a received data bit-stream, encoding the received data bit-stream into a pulse modulated output signal, and forwarding the pulse modulated output signal.

摘要翻译： 本发明涉及将脉冲调制信号转换成射频信号，从而能够使用针对射频信道上的无线光链路设计的应用和协议。 该方法包括接收脉冲调制输入信号，将接收到的脉冲调制输入信号解码成解码数据比特流，在解码数据比特流中使用重新编码的数据比特流调制 射频信号，并发送调制的射频信号。 在接收机路径中，接收到的射频信号通过以下步骤转换成脉冲调制输出信号：将接收的射频信号解调成解调数据比特流，将解调的数据比特流解码为接收的数据比特流， 将接收到的数据比特流编码为脉冲调制输出信号，并转发脉冲调制输出信号。