公开(公告)号：US08223821B2

公开(公告)日：2012-07-17

申请号：US12491371

申请日：2009-06-25

申请人： Ariful Hannan ,  John Carlson

发明人： Ariful Hannan ,  John Carlson

IPC分类号： H04L25/20

CPC分类号： H04B7/15535 ,  H04B1/70718

摘要： A method for detecting an IS-95 signal without knowledge of a spreading code for the IS-95 signal is provided. A received baseband signal is rotated through a plurality of phase-shifts. For each phase-shifted baseband signal, an in-phase component or a quadrature component of the phase-shifted baseband signal is realigned. The in-phase and quadrature components are multiplied by a PN short code to partially despread the components. The partially despread in-phase and quadrature components are multiplied and integrated. The integrated despread in-phase and quadrature components are compared to a threshold value. In response to exceeding the threshold value, the received baseband signal is identified as an IS-95 signal. The method may be implemented on a repeater for repeating signals between multiple sources.

摘要翻译： 提供了一种在不了解IS-95信号的扩展码的情况下检测IS-95信号的方法。 接收到的基带信号通过多个相移旋转。 对于每个相移基带信号，重新对准相移基带信号的同相分量或正交分量。 同相和正交分量乘以PN短码以部分地解扩组件。 将部分解扩的同相和正交分量相乘并积分。 将集成的解扩同相和正交分量与阈值进行比较。 响应于超过阈值，接收的基带信号被识别为IS-95信号。 该方法可以在中继器上实现，用于在多个源之间重复信号。

公开(公告)号：US08331956B2

公开(公告)日：2012-12-11

申请号：US13269911

申请日：2011-10-10

申请人： Tariqul Islam ,  John Carlson ,  Khalid Al-Mufti ,  Ariful Hannan

发明人： Tariqul Islam ,  John Carlson ,  Khalid Al-Mufti ,  Ariful Hannan

IPC分类号： H04W24/00

CPC分类号： H04W24/00 ,  G01S5/0215 ,  H04W64/00

摘要： A system and method for estimating a location of a wireless device in a wireless communication system having a plurality of nodes and a plurality of location measurement units (“LMUs”). A set of signal samples from a first wireless device and a second wireless device may be collected by one or more LMUs in a search window. A first time of arrival (“TOA”) is determined, and a second search window is estimated as a function of the first TOA. A second TOA may be determined within the second search window at a second node or one of the LMUs from the set of signal samples. A range estimate of the wireless device may then be determined, and an estimated location of the wireless device may be determined as a function of the first uplink TOA, the second uplink TOA, or the range estimate and second TOA.

摘要翻译： 一种用于在具有多个节点和多个位置测量单元（LMU）的无线通信系统中估计无线设备的位置的系统和方法。 来自第一无线设备和第二无线设备的一组信号样本可以由搜索窗口中的一个或多个LMU收集。 确定第一次到达时间（TOA），并且估计第二个搜索窗口作为第一个TOA的函数。 可以在第二个节点的第二个搜索窗口中确定第二个TOA，或者从该组信号样本中确定一个LMU。 然后可以确定无线设备的范围估计，并且可以根据第一上行链路TOA，第二上行链路TOA或范围估计和第二TOA来确定无线设备的估计位置。

公开(公告)号：US08073463B2

公开(公告)日：2011-12-06

申请号：US12246156

申请日：2008-10-06

申请人： Tariqul Islam ,  John Carlson ,  Khalid Al-Mufti ,  Ariful Hannan

发明人： Tariqul Islam ,  John Carlson ,  Khalid Al-Mufti ,  Ariful Hannan

IPC分类号： H04W24/00

CPC分类号： H04W24/00 ,  G01S5/0215 ,  H04W64/00

摘要： A system and method for estimating a location of a wireless device in a wireless communication system having a plurality of nodes and a plurality of location measurement units (“LMUs”). A set of signal samples from a first wireless device and a second wireless device may be collected by one or more LMUs in a search window. A first time of arrival (“TOA”) is determined, and a second search window is estimated as a function of the first TOA. A second TOA may be determined within the second search window at a second node or one of the LMUs from the set of signal samples. A range estimate of the wireless device may then be determined, and an estimated location of the wireless device may be determined as a function of the first uplink TOA, the second uplink TOA, or the range estimate and second TOA.

摘要翻译： 一种用于在具有多个节点和多个位置测量单元（“LMU”）的无线通信系统中估计无线设备的位置的系统和方法。 来自第一无线设备和第二无线设备的一组信号样本可以由搜索窗口中的一个或多个LMU收集。 第一次到达（“TOA”）被确定，并且第二个搜索窗口被估计为第一个TOA的函数。 可以在第二个节点的第二个搜索窗口中确定第二个TOA，或者从该组信号样本中确定一个LMU。 然后可以确定无线设备的范围估计，并且可以根据第一上行链路TOA，第二上行链路TOA或范围估计和第二TOA来确定无线设备的估计位置。

公开(公告)号：US08660165B2

公开(公告)日：2014-02-25

申请号：US12482746

申请日：2009-06-11

申请人： Ariful Hannan ,  John Carlson

发明人： Ariful Hannan ,  John Carlson

IPC分类号： H04B1/00

CPC分类号： H04B7/15535

摘要： An apparatus for detecting a spread spectrum signal in a wireless signal environment includes at least one antenna for receiving spread spectrum signals, such as UMTS signals, from a signal source in the wireless signal environment. In one embodiment, a detection circuit is configured for correlating a code in signal received by the apparatus with a set of possible codes for spread spectrum signals in order to detect the existence of a spread spectrum signal. In another embodiment, a detection circuit is configured for obtaining at least one reference frame of data from a received signal. The detection circuit is further operable for correlating a segment of the reference frame with a repeated segment of at least one subsequent frame of data in order to detect the existence of a spread spectrum signal. A repeater might incorporate such an apparatus wherein the variable gain of the repeater is adjusted based upon the correlation and the detection of a spread spectrum signal.

摘要翻译： 一种用于在无线信号环境中检测扩频信号的装置包括至少一个天线，用于从无线信号环境中的信号源接收诸如UMTS信号的扩频信号。 在一个实施例中，检测电路被配置为将由装置接收的信号中的码与用于扩频信号的一组可能码相关，以便检测扩频信号的存在。 在另一个实施例中，检测电路被配置为从接收到的信号获得至少一个参考数据帧。 检测电路还可操作用于将参考帧的段与至少一个后续数据帧的重复段相关，以便检测扩频信号的存在。 中继器可以结合这样的装置，其中基于扩频信号的相关性和检测来调整中继器的可变增益。

公开(公告)号：US20130095853A1

公开(公告)日：2013-04-18

申请号：US13705820

申请日：2012-12-05

申请人： Tariqul Islam ,  John Carlson ,  Khalid Al-Mufti ,  Ariful Hannan

发明人： Tariqul Islam ,  John Carlson ,  Khalid Al-Mufti ,  Ariful Hannan

IPC分类号： H04W24/00

CPC分类号： H04W24/00 ,  G01S5/0215 ,  H04W64/00

摘要： A system and method for estimating a location of a wireless device in a wireless communication system having a plurality of nodes and a plurality of location measurement units (“LMUs”). A set of signal samples from a first wireless device and a second wireless device may be collected by one or more LMUs in a search window. A first time of arrival (“TOA”) is determined, and a second search window is estimated as a function of the first TOA. A second TOA may be determined within the second search window at a second node or one of the LMUs from the set of signal samples. A range estimate of the wireless device may then be determined, and an estimated location of the wireless device may be determined as a function of the first uplink TOA, the second uplink TOA, or the range estimate and second TOA.

摘要翻译： 一种用于在具有多个节点和多个位置测量单元（“LMU”）的无线通信系统中估计无线设备的位置的系统和方法。 来自第一无线设备和第二无线设备的一组信号样本可以由搜索窗口中的一个或多个LMU收集。 第一次到达（“TOA”）被确定，并且第二个搜索窗口被估计为第一个TOA的函数。 可以在第二个节点的第二个搜索窗口中确定第二个TOA，或者从该组信号样本中确定一个LMU。 然后可以确定无线设备的范围估计，并且可以根据第一上行链路TOA，第二上行链路TOA或范围估计和第二TOA来确定无线设备的估计位置。

公开(公告)号：US20120028653A1

公开(公告)日：2012-02-02

申请号：US13269911

申请日：2011-10-10

申请人： Tariqul Islam ,  John Carlson ,  Khalid Al-Mufti ,  Ariful Hannan

发明人： Tariqul Islam ,  John Carlson ,  Khalid Al-Mufti ,  Ariful Hannan

IPC分类号： H04W24/00

CPC分类号： H04W24/00 ,  G01S5/0215 ,  H04W64/00

摘要： A system and method for estimating a location of a wireless device in a wireless communication system having a plurality of nodes and a plurality of location measurement units (“LMUs”). A set of signal samples from a first wireless device and a second wireless device may be collected by one or more LMUs in a search window. A first time of arrival (“TOA”) is determined, and a second search window is estimated as a function of the first TOA. A second TOA may be determined within the second search window at a second node or one of the LMUs from the set of signal samples. A range estimate of the wireless device may then be determined, and an estimated location of the wireless device may be determined as a function of the first uplink TOA, the second uplink TOA, or the range estimate and second TOA.

摘要翻译： 一种用于在具有多个节点和多个位置测量单元（“LMU”）的无线通信系统中估计无线设备的位置的系统和方法。 来自第一无线设备和第二无线设备的一组信号样本可以由搜索窗口中的一个或多个LMU收集。 第一次到达（“TOA”）被确定，并且第二个搜索窗口被估计为第一个TOA的函数。 可以在第二个节点的第二个搜索窗口中确定第二个TOA，或者从该组信号样本中确定一个LMU。 然后可以确定无线设备的范围估计，并且可以根据第一上行链路TOA，第二上行链路TOA或范围估计和第二TOA来确定无线设备的估计位置。

公开(公告)号：US20100329311A1

公开(公告)日：2010-12-30

申请号：US12491371

申请日：2009-06-25

申请人： Ariful Hannan ,  John Carlson

发明人： Ariful Hannan ,  John Carlson

IPC分类号： H04B1/707

CPC分类号： H04B7/15535 ,  H04B1/70718

摘要： A method for detecting an IS-95 signal without knowledge of a spreading code for the IS-95 signal is provided. A received baseband signal is rotated through a plurality of phase-shifts. For each phase-shifted baseband signal, an in-phase component or a quadrature component of the phase-shifted baseband signal is realigned. The in-phase and quadrature components are multiplied by a PN short code to partially despread the components. The partially despread in-phase and quadrature components are multiplied and integrated. The integrated despread in-phase and quadrature components are compared to a threshold value. In response to exceeding the threshold value, the received baseband signal is identified as an IS-95 signal. The method may be implemented on a repeater for repeating signals between multiple sources.

摘要翻译： 提供了一种在不了解IS-95信号的扩展码的情况下检测IS-95信号的方法。 接收到的基带信号通过多个相移旋转。 对于每个相移基带信号，重新对准相移基带信号的同相分量或正交分量。 同相和正交分量乘以PN短码以部分地解扩组件。 将部分解扩的同相和正交分量相乘并积分。 将集成的解扩同相和正交分量与阈值进行比较。 响应于超过阈值，接收的基带信号被识别为IS-95信号。 该方法可以在中继器上实现，用于在多个源之间重复信号。

公开(公告)号：US20100316092A1

公开(公告)日：2010-12-16

申请号：US12482746

申请日：2009-06-11

申请人： Ariful Hannan ,  John Carlson

发明人： Ariful Hannan ,  John Carlson

IPC分类号： H04B1/707

CPC分类号： H04B7/15535

摘要： An apparatus for detecting a spread spectrum signal in a wireless signal environment includes at least one antenna for receiving spread spectrum signals, such as UMTS signals, from a signal source in the wireless signal environment. In one embodiment, a detection circuit is configured for correlating a code in signal received by the apparatus with a set of possible codes for spread spectrum signals in order to detect the existence of a spread spectrum signal. In another embodiment, a detection circuit is configured for obtaining at least one reference frame of data from a received signal. The detection circuit is further operable for correlating a segment of the reference frame with a repeated segment of at least one subsequent frame of data in order to detect the existence of a spread spectrum signal. A repeater might incorporate such an apparatus wherein the variable gain of the repeater is adjusted based upon the correlation and the detection of a spread spectrum signal.

摘要翻译： 一种用于在无线信号环境中检测扩频信号的装置包括至少一个天线，用于从无线信号环境中的信号源接收诸如UMTS信号的扩频信号。 在一个实施例中，检测电路被配置为将由装置接收的信号中的码与用于扩频信号的一组可能码相关，以便检测扩频信号的存在。 在另一个实施例中，检测电路被配置为从接收到的信号获得至少一个参考数据帧。 检测电路还可操作用于将参考帧的段与至少一个后续数据帧的重复段相关，以便检测扩频信号的存在。 中继器可以结合这样的装置，其中基于扩频信号的相关性和检测来调整中继器的可变增益。

公开(公告)号：US08374784B2

公开(公告)日：2013-02-12

申请号：US13197126

申请日：2011-08-03

申请人： Selcuk Mazlum ,  John Carlson ,  Martin Alles ,  George Maher

发明人： Selcuk Mazlum ,  John Carlson ,  Martin Alles ,  George Maher

IPC分类号： G01C21/00

CPC分类号： G01S19/50

摘要： A method and apparatus for estimating a location of a device. For each of a plurality of locations of a device, a set of positional data is determined from signals received from a plurality of satellites. The positional data is filtered and compared with data from a road network database. This comparison may be a function of a distance from at least one point defined by a set of the filtered positional data to a road in the road network database and an angle between a line representing a best fit for plural points defined by corresponding plural sets of the filtered positional data to a line defined by a road in the road network database.

摘要翻译： 一种用于估计设备的位置的方法和装置。 对于装置的多个位置中的每一个，根据从多个卫星接收的信号来确定一组位置数据。 对位置数据进行过滤，并与道路网数据库的数据进行比较。 该比较可以是距离由一组经过滤的位置数据至道路网数据库中的道路所定义的至少一个点的距离的函数，以及表示对应于多个组 将过滤的位置数据提供给由道路网数据库中的道路定义的线。

公开(公告)号：US20120290107A1

公开(公告)日：2012-11-15

申请号：US13106044

申请日：2011-05-12

申请人： John Carlson ,  Philip M. Sherwood

发明人： John Carlson ,  Philip M. Sherwood

IPC分类号： G06F15/16 ,  G05B15/02 ,  G05B19/05

CPC分类号： G05B19/058 ,  G05B2219/13144 ,  G05B2219/13164 ,  G05B2219/13172 ,  G05B2219/15039

摘要： A method for displaying state data of an industrial plant by a server communicating with a client over a network includes, in a first mode, receiving live state data from a data source and sending a portion of the live state data to the client for display into a graphical user interface. The method also includes, in a replay mode, reading stored state data from a data storage, the stored state data being stored at a storage rate, and sending a portion of the stored state data to the client for display into the same or a different graphical user interface at a replay rate, which can be different than the storage rate. The data source can include a programmable logic controller (PLC) and the live state data and the stored state data may represent any combination of sensor data, data derived from sensor data, control output data, control input data, and program state data. The client may include a plurality of clients, in which case the portion of the live state data is sent to one of the plurality of clients and the portion of the stored state data is sent to another of the plurality of clients. The method may further include receiving control input data from the client and sending the control input data to the data source to control the industrial plant.

摘要翻译： 用于通过网络与客户端通信的服务器显示工厂的状态数据的方法包括：在第一模式中，从数据源接收实时状态数据，并将一部分现场状态数据发送给客户端进行显示 图形用户界面。 该方法还包括在重放模式下，从数据存储器读取存储的状态数据，存储的状态数据以存储速率存储，并且将存储的状态数据的一部分发送到客户端以显示为相同或不同的 图形用户界面以重放速率，可以不同于存储速率。 数据源可以包括可编程逻辑控制器（PLC）和实时状态数据，并且存储状态数据可以表示传感器数据，从传感器数据导出的数据，控制输出数据，控制输入数据和程序状态数据的任何组合。 客户端可以包括多个客户端，在这种情况下，将活动状态数据的一部分发送到多个客户端中的一个，并且存储的状态数据的一部分被发送到多个客户端中的另一个。 该方法还可以包括从客户端接收控制输入数据并将控制输入数据发送到数据源以控制工厂。