公开(公告)号：US06996392B2

公开(公告)日：2006-02-07

申请号：US10234363

申请日：2002-09-03

申请人： Robert J. Anderson ,  Joseph W. Sheehan

发明人： Robert J. Anderson ,  Joseph W. Sheehan

IPC分类号： H04M11/04

CPC分类号： H04W64/00 ,  H04W4/90 ,  H04W24/00 ,  H04W72/0406 ,  H04W74/0833 ,  H04W76/50

摘要： In a network overlay Location Services solution for a GSM communications network, the LMU monitors the uplink and/or downlink control channels and determines which call originations are for E911 emergencies and which call setup (Stand-alone Dedicated Control Channel, or SDCCH), assigned traffic (TCH) and associated (Slow Associated Control Channel, or SACCH) channels are subsequently assigned. Capturing the energy on the call setup channel, SDCCH, and its associated SACCH will typically provide a sub-100 meter level of accuracy. If not, the SMLC can redirect the LMU to the assigned traffic channel, TCH, to capture additional RF energy and improve the location accuracy as required. This approach takes advantage of the fact that Channel Request messages on the RACH include an information element that indicates the purpose for the access request. One of the values of this information element identifies that the Channel Request is for an emergency call. By monitoring the Access Grant channels (downlink), e.g., the AGCH, the primary (serving) LMU (LMU 200A in FIG. 1) can capture the Immediate Assignment Message (IMM ASS) for emergency calls. The Immediate Assignment Message contains the Channel Request message (with the emergency call indication) and the SDCCH channel to be used by the MS for subsequent call setup messaging. The primary LMU will forward the Immediate Assignment Message to the SMLC, which will task the cooperating LMUs to collect the RF energy from the associated SDCCH, SACCH and TCH channels and provide TDOA, AoA, and FDOA determinations.

摘要翻译： 在用于GSM通信网络的网络覆盖定位服务解决方案中，LMU监视上行链路和/或下行链路控制信道，并确定哪些呼叫发起用于E911紧急情况以及哪个呼叫建立（独立专用控制信道或SDCCH）被分配 随后分配业务（TCH）和相关联的（慢关联控制信道或SACCH）信道。 在呼叫建立信道，SDCCH及其相关联的SACCH上捕获能量通常将提供低于100米的准确度级别。 如果不是，SMLC可以将LMU重定向到分配的业务信道TCH，以捕获额外的RF能量并根据需要提高定位精度。 这种方法利用了RACH上的信道请求消息包括指示访问请求的目的的信息元素的事实。 该信息元素的值之一识别信道请求是用于紧急呼叫。 通过监视例如AGCH的接入授权信道（下行链路），主（服务）LMU（图1中的LMU200A）可以捕获用于紧急呼叫的立即分配消息（IMM ASS）。 立即分配消息包含MS要用于随后的呼叫建立消息传递的信道请求消息（具有紧急呼叫指示）和SDCCH信道。 主LMU将向SMLC转发立即分配消息，SMLC将协调的LMU从相关的SDCCH，SACCH和TCH信道中收集RF能量，并提供TDOA，AoA和FDOA确定。

公开(公告)号：US06876859B2

公开(公告)日：2005-04-05

申请号：US09908998

申请日：2001-07-18

申请人： Robert J. Anderson ,  Alan E. E. Rogers ,  Louis A. Stilp

发明人： Robert J. Anderson ,  Alan E. E. Rogers ,  Louis A. Stilp

IPC分类号： G01S5/06 ,  G01S1/02 ,  G01S5/10 ,  G01S19/09 ,  G01S19/46 ,  H04W64/00 ,  H04Q7/20

CPC分类号： H04W64/00 ,  G01S1/026 ,  G01S5/10

摘要： A method, used in locating a mobile transmitter, includes providing a set of cross-correlation values, wherein each cross-correlation value is associated with a corresponding TDOA and/or FDOA estimate and is produced by cross-correlating a reference signal with a cooperating signal. The reference signal comprises a copy of a signal transmitted by the mobile transmitter as received at a first antenna and the cooperating signal comprises a copy of the same signal as received at a second antenna. The method further includes determining a most likely range of TDOA and/or FDOA estimates, and then identifying an optimal cross-correlation value within a subset of cross-correlation values corresponding to the most likely range of TDOA and/or FDOA estimates. The TDOA and/or FDOA value corresponding to the optimal cross-correlation value is then employed in calculating the location of the mobile transmitter.

摘要翻译： 用于定位移动发射机的方法包括提供一组互相关值，其中每个互相关值与相应的TDOA和/或FDOA估计相关联，并且是通过将参考信号与协作的 信号。 参考信号包括由第一天线接收的由移动发射机发送的信号的副本，并且协作信号包括在第二天线处接收到的相同信号的副本。 该方法还包括确定TDOA和/或FDOA估计的最可能范围，然后确定对应于TDOA和/或FDOA估计的最可能范围的互相关值的子集内的最佳互相关值。 然后在计算移动发射机的位置时采用对应于最佳互相关值的TDOA和/或FDOA值。

公开(公告)号：US06765531B2

公开(公告)日：2004-07-20

申请号：US10217782

申请日：2002-08-13

申请人： Robert J. Anderson

发明人： Robert J. Anderson

IPC分类号： G01S316

CPC分类号： H04B1/7107 ,  G01S1/026 ,  G01S5/02 ,  G01S5/021 ,  G01S5/0215 ,  G01S5/0221 ,  G01S5/0284 ,  G01S5/06 ,  H04W4/90 ,  H04W64/00 ,  H04W76/50

摘要： In a Wireless Location System, reception and demodulation of signals is often performed at many sites. A collision may occur, e.g., in a TDMA, AMPS, GSM, GPRS, EDGE, CDMA, CDMA 2000, or WCDMA system, when a signal of interest (a transmission from a mobile transmitter to be located) and an interfering signal are received at the same time and at the same site. In the event such a collision occurs, the interfering signal may have been demodulated by a receiver system, or SCS, at another site, and the demodulated data be known by the TLP. This interferer can be reconstructed and subtracted from the raw data representing the combined signal of interest and interferer at the site where the collision occurred. This technique can provide significant (e.g., approximately 10-15 dB) interference rejection, with little degradation to the signal of interest.

摘要翻译： 在无线定位系统中，信号的接收和解调通常在许多站点执行。 当感兴趣的信号（来自要定位的移动发射机的传输）和干扰信号被接收时，可能发生冲突，例如在TDMA，AMPS，GSM，GPRS，EDGE，CDMA，CDMA2000或WCDMA系统中 在同一时间和在同一个网站。 在发生这种冲突的情况下，干扰信号可能已经被另一个站点处的接收机系统或SCS解调，并且解调的数据被TLP所知。 可以从表示碰撞发生的位置处的感兴趣的组合信号和干扰源的原始数据中重建和减去该干扰源。 该技术可以提供显着的（例如约10-15dB）的干扰抑制，对感兴趣的信号几乎没有退化。

公开(公告)号：US06483460B2

公开(公告)日：2002-11-19

申请号：US10004895

申请日：2001-12-05

申请人： Louis A. Stilp ,  Joseph W. Sheehan ,  Alan E. E. Rogers ,  Robert J. Anderson ,  Andrew F. Harbison

发明人： Louis A. Stilp ,  Joseph W. Sheehan ,  Alan E. E. Rogers ,  Robert J. Anderson ,  Andrew F. Harbison

IPC分类号： G01S302

CPC分类号： H04W64/00 ,  G01S1/026 ,  G01S5/02 ,  G01S5/021 ,  G01S5/0215 ,  G01S5/0221 ,  G01S5/0252 ,  G01S5/0268 ,  G01S5/0284 ,  G01S5/06 ,  G01S2205/006 ,  G01S2205/008 ,  H04W4/90 ,  H04W76/50 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/144 ,  Y02D70/164

摘要： A Wireless Location System includes signal collection systems and location processors for processing digital data provided by the signal collection systems. To determine the geographic location of a mobile wireless transmitter, time difference of arrival, or TDOA, data is determined with respect to a plurality of first signal collection system/antenna second signal collection system/antenna baselines. A method for selecting baselines for use in location processing comprises calculating a number of parameters for each of the plurality of baselines, and including in a final location solution only those baselines meeting or exceeding predefined threshold criteria for each of the parameters.

摘要翻译： 无线定位系统包括用于处理由信号采集系统提供的数字数据的信号收集系统和位置处理器。 为了确定移动无线发射机的地理位置，到达时间差或TDOA，数据相对于多个第一信号收集系统/天线第二信号收集系统/天线基线确定。 用于选择用于位置处理的基线的方法包括计算多个基线中的每一个的参数的数量，并且在最终位置中仅包括满足或超过每个参数的预定阈值标准的那些基准。

公开(公告)号：US06400320B1

公开(公告)日：2002-06-04

申请号：US09648404

申请日：2000-08-24

申请人： Louis A. Stilp ,  Joseph W. Sheehan ,  Alan E. E. Rogers ,  Robert J. Anderson ,  Andrew F. Harbison

发明人： Louis A. Stilp ,  Joseph W. Sheehan ,  Alan E. E. Rogers ,  Robert J. Anderson ,  Andrew F. Harbison

IPC分类号： G01S302

CPC分类号： H04W64/00 ,  G01S1/026 ,  G01S5/02 ,  G01S5/021 ,  G01S5/0215 ,  G01S5/0221 ,  G01S5/0252 ,  G01S5/0268 ,  G01S5/0284 ,  G01S5/06 ,  G01S2205/006 ,  G01S2205/008 ,  H04W4/90 ,  H04W76/50 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/144 ,  Y02D70/164

摘要： An antenna selection method is used in a wireless location system that determines the geographic location of a mobile wireless transmitter. The wireless location system includes signal collection systems connected to multiple antennas at a plurality of cell sites and a location processor for processing digital data provided by the signal collection systems. The antenna selection method comprises evaluating segments of data collected from a plurality of antennas at a signal collection system, selecting a subset of the segments of data, and using only the selected segments of data in location processing.

摘要翻译： 在确定移动无线发射机的地理位置的无线定位系统中使用天线选择方法。 无线定位系统包括连接到多个小区站点处的多个天线的信号采集系统和用于处理由信号采集系统提供的数字数据的位置处理器。 天线选择方法包括评估在信号采集系统从多个天线收集的数据的段，选择数据段的子集，并且仅在位置处理中仅使用所选择的数据段。

公开(公告)号：US06388618B1

公开(公告)日：2002-05-14

申请号：US09539370

申请日：2000-03-31

申请人： Louis A. Stilp ,  Joseph W. Sheehan ,  Jeffrey F. Bull ,  Robert J. Anderson

发明人： Louis A. Stilp ,  Joseph W. Sheehan ,  Jeffrey F. Bull ,  Robert J. Anderson

IPC分类号： G01S302

CPC分类号： H04W64/00 ,  G01S1/026 ,  G01S5/02 ,  G01S5/021 ,  G01S5/06 ,  G01S2205/008 ,  H04W4/90 ,  H04W76/50 ,  Y02D70/164

摘要： A signal collection system (SCS) is used in a wireless location system that determines the geographical locations of mobile wireless transmitters. The SCS includes a first receiver module, a first digital signal processing (DSP) module, a control and communications module, a timing signal generator including an enhanced GPS receiver, and a bus coupling the DSP module to the communications and control module. The receiver module receives RF signals from the mobile transmitters via a plurality of antennas and digitizes said RF signals, and provides digitized RF data to the first DSP module.

摘要翻译： 在确定移动无线发射机的地理位置的无线定位系统中使用信号采集系统（SCS）。 SCS包括第一接收器模块，第一数字信号处理（DSP）模块，控制和通信模块，包括增强型GPS接收器的定时信号发生器和将DSP模块耦合到通信和控制模块的总线。 接收机模块经由多个天线从移动发射机接收RF信号，并对所述RF信号进行数字化，并向第一DSP模块提供数字化的RF数据。

公开(公告)号：US06334059B1

公开(公告)日：2001-12-25

申请号：US09541888

申请日：2000-03-31

申请人： Louis A. Stilp ,  Robert J. Anderson ,  Joseph W. Sheehan

发明人： Louis A. Stilp ,  Robert J. Anderson ,  Joseph W. Sheehan

IPC分类号： H04Q700

CPC分类号： H04W64/00 ,  G01S1/026 ,  G01S5/02 ,  G01S5/021 ,  G01S5/06 ,  G01S2205/006 ,  G01S2205/008 ,  H04W4/90 ,  H04W76/50

摘要： The accuracy of the location estimate of a Wireless Location System is dependent, in part, upon both the transmitted power of the wireless transmitter and the length in time of the transmission from the wireless transmitter. In general, higher power transmissions and transmissions of greater transmission length can be located with better accuracy by the Wireless Location System than lower power and shorter transmissions. Wireless communications systems generally limit the transmit power and transmission length of wireless transmitters in order to minimize interference within the communications system and to maximize the potential capacity of the system. The inventive method disclosed herein meets the conflicting needs of both systems by enabling the wireless communications system to minimize transmit power and length while enabling improved location accuracy for certain types of calls, such as wireless 9-1-1 calls. The method comprises the following steps: a wireless transmitter receives normal transmission parameters from a base station; the user of the wireless transmitter initiates a call on the wireless transmitter by dialing a sequence of digits and pressing “SEND” or “YES”; a processor within the wireless transmitter compares the dialed sequence of digits with one or more trigger events stored within the wireless transmitter; if the dialed sequence of digits does not match the trigger event, then the wireless transmitter uses the normal transmission parameters in making the call; and if the dialed sequence of digits matches the trigger event, then the wireless transmitter uses a modified transmission sequence.

摘要翻译： 无线定位系统的位置估计的精度部分地取决于无线发射机的发射功率和从无线发射机发射的时间长度。 通常，通过无线定位系统可以以比较低的功率和较短的传输更高的精度来定位更高功率的传输和更大传输长度的传输。 无线通信系统通常限制无线发射机的发射功率和传输长度，以便最小化通信系统内的干扰并最大化系统的潜在容量。 本文公开的创造性方法通过使无线通信系统能够最小化发射功率和长度同时实现诸如无线9-1-1呼叫的某些类型的呼叫的改进的位置精度来满足两个系统的冲突的需求。 该方法包括以下步骤：无线发射机从基站接收正常的传输参数; 无线发射机的用户通过拨打一系列数字并按“发送”或“是”来在无线发射机上发起呼叫。 无线发射机内的处理器将拨号的数字序列与存储在无线发射机内的一个或多个触发事件进行比较; 如果拨打的数字序列与触发事件不匹配，则无线发射机在进行呼叫时使用正常的传输参数; 并且如果拨号的数字序列匹配触发事件，则无线发射机使用修改的传输序列。

公开(公告)号：US06266013B1

公开(公告)日：2001-07-24

申请号：US09228362

申请日：1999-01-11

申请人： Louis A. Stilp ,  Joseph W. Sheehan ,  Tim J. Harris ,  Jeffrey F. Bull ,  Robert J. Anderson

发明人： Louis A. Stilp ,  Joseph W. Sheehan ,  Tim J. Harris ,  Jeffrey F. Bull ,  Robert J. Anderson

IPC分类号： G01S124

CPC分类号： H04W64/00 ,  G01S1/026 ,  G01S5/02 ,  G01S5/021 ,  G01S5/0215 ,  G01S5/0221 ,  G01S5/0252 ,  G01S5/0268 ,  G01S5/0284 ,  G01S5/06 ,  G01S2205/006 ,  G01S2205/008 ,  H04W4/90 ,  H04W76/50 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/144 ,  Y02D70/164

摘要： A signal collection system (SCS) for use in a Wireless Location System is disclosed. The SCS performs wideband energy detection and reporting at the front end of the SCS receiver. Other aspects of the SCS include a protocol for efficiently setting levels for wideband energy detection, DSP sharing within an SCS, and recursive location processing using progressively greater bandwidth from temporarily stored wideband data. The disclosed SCS includes antennas, a wideband receiver, a DSP for wideband energy detection, a memory for temporarily storing digital samples of received signals, a digital drop receiver, demodulation and normalization processors, and a communications processor. The wideband energy detection and the demodulation and normalization processors are implemented with DSP's that detect energy in a particular band, demodulate selected signals, and extract signals of interest for forwarding. The wideband energy detection unit determines the presence of a transmitted signal in the control channels monitored by the SCS. The wideband energy detection involves forming a map of the channel spectrum, and the map is used to determine when to demodulate signals within selected channels.

摘要翻译： 公开了一种用于无线定位系统的信号采集系统（SCS）。 SCS在SCS接收机的前端执行宽带能量检测和报告。 SCS的其他方面包括用于有效地设置宽带能量检测的水平，SCS内的DSP共享以及使用从临时存储的宽带数据逐渐增加的带宽的递归位置处理的协议。 所公开的SCS包括天线，宽带接收机，用于宽带能量检测的DSP，用于临时存储接收信号的数字样本的存储器，数字丢弃接收机，解调和归一化处理器以及通信处理器。 宽带能量检测和解调和归一化处理器是用DSP来实现的，该DSP用于检测特定频带中的能量，解调所选择的信号，并提取用于转发的信号。 宽带能量检测单元确定由SCS监控的控制信道中的发射信号的存在。 宽带能量检测涉及形成信道频谱的映射，并且该映射用于确定何时解调选定信道内的信号。

公开(公告)号：US06188322B1

公开(公告)日：2001-02-13

申请号：US09406364

申请日：1999-09-28

申请人： Jun Jason Yao ,  Gerard J. Sullivan ,  Robert J. Anderson

发明人： Jun Jason Yao ,  Gerard J. Sullivan ,  Robert J. Anderson

IPC分类号： G08B2100

CPC分类号： G01R33/0286 ,  G01R15/148

摘要： A method is provided for sensing and measuring an electrical current. The current to be measured is applied to a deflectable member in a sensing module in the presence of a magnetic field. Deflection of the member is detected as an indication of the current. A nulling current may be applied to one or more additional deflectable members mechanically linked to the deflectable member. Feedback or readout signals indicative of deflection of the members are monitored. The nulling current is modulated to drive the feedback signals to a desired level. The nulling current value is converted to a value representative of the current to be measured.

摘要翻译： 提供了一种用于感测和测量电流的方法。 要测量的电流在存在磁场的情况下被应用于感测模块中的可偏转构件。 检测到成员的偏转作为当前的指示。 可以将零电流施加到机械地连接到可偏转构件的一个或多个附加的可偏转构件。 监视指示成员偏转的反馈或读出信号。 将归零电流调制以将反馈信号驱动到期望的水平。 归零电流值被转换为表示要测量的电流的值。

公开(公告)号：US5860238A

公开(公告)日：1999-01-19

申请号：US708482

申请日：1996-09-05

申请人： Robert J. Anderson

发明人： Robert J. Anderson

IPC分类号： G09F3/02 ,  G09F3/04

CPC分类号： G09F3/0289 ,  Y10S283/901 ,  Y10T156/1057 ,  Y10T156/1064 ,  Y10T156/1082 ,  Y10T156/1084

摘要： An expanded content label (ECL) having a segmented base label that allows the label to conform to a curved surface. A booklet and covering overlaminate are secured to the spaced-apart segments of the base to interconnect the segments. The gap between the segments enhances the ability of the label to flex and move along a supporting curved surface to conform to the surface without buckling or wrinkling. The label is produced by die cutting a web to form a segmented base label, securing a booklet to the segmented base label, and optionally securing an overlaminate to the booklet. At least one of the booklet and the overlaminate bridge the segments of the base label. In an alternative embodiment, the overlaminate is eliminated and the booklet includes a coversheet that extends across the gap between the base label segments.

摘要翻译： 扩展内容标签（ECL）具有允许标签符合曲面的分段基标签。 小册子和覆盖层叠层被固定到基座的间隔开的部分以互连部分。 片段之间的间隙增强了标签弯曲并沿着支撑曲面移动以符合表面而没有弯曲或起皱的能力。 标签通过模切网来形成分段的基标签，将小册子固定到分段的基标签上，并且可选地将叠层固定到小册子上。 小册子和叠层中的至少一个桥接基本标签的片段。 在替代实施例中，覆盖层被消除，并且小册子包括延伸穿过基底标签段之间的间隙的覆盖片。