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11. 发明授权

US06266013B1 Architecture for a signal collection system of a wireless location system 有权
标题翻译：无线定位系统信号采集系统的架构
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。

12. 发明授权

US06519465B2 Modified transmission method for improving accuracy for E-911 calls 有权
标题翻译：改进了E-911呼叫精度的传输方式
公开(公告)号：US06519465B2
公开(公告)日：2003-02-11
申请号：US09907028
申请日：2001-07-16
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： H04B700
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。

13. 再颁专利

USRE42285E1 Applications processor including a database system, for use in a wireless location system 有权
标题翻译：应用处理器包括用于无线定位系统的数据库系统
公开(公告)号：USRE42285E1
公开(公告)日：2011-04-12
申请号：US12562924
申请日：2009-09-18
申请人： Robert J. Anderson , Michael John Kovach, Jr. , Anthony Richard Brigidi , John Solley , Edwin E. McCook , Vineet Sachdev , Thomas Ginter , Joseph W. Sheehan , Louis A. Stilp
发明人： Robert J. Anderson , Michael John Kovach, Jr. , Anthony Richard Brigidi , John Solley , Edwin E. McCook , Vineet Sachdev , Thomas Ginter , Joseph W. Sheehan , Louis A. Stilp
IPC分类号： G01S3/02
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 Applications Processor (14) including a centralized database system is used in a wireless location system (WLS). The APs 14 may be used to manage resources in the WLS, including signal collection systems (SCSs 10) and TDOA location processors (TLPs 12). Each AP 14 contains a database containing triggers for the WLS. The WLS can be programmed to locate only certain pre-determined types of transmissions. When a transmission of a pre-determined type occurs, then the WLS is triggered to begin location processing. Each AP 14 also contains applications interfaces that permit a variety of applications to securely access the WLS. These applications may access location records in real time or non-real time, create or delete certain types of triggers, or cause the WLS to take other actions. Each AP 14 is also capable of certain post-processing functions.
摘要翻译：在无线定位系统（WLS）中使用包括集中式数据库系统的应用处理器（14）。 AP 14可以用于管理WLS中的资源，包括信号收集系统（SCS 10）和TDOA位置处理器（TLP 12）。每个AP 14包含一个包含WLS触发器的数据库。可以将WLS编程为仅定位某些预定类型的传输。当发生预定类型的发送时，触发WLS开始定位处理。每个AP 14还包含允许各种应用程序安全访问WLS的应用程序接口。这些应用程序可以实时或非实时访问位置记录，创建或删除某些类型的触发器，或使WLS采取其他操作。每个AP 14还能够具有某些后处理功能。

14. 发明授权

US07023383B2 Multiple pass location processor 有权
标题翻译：多通位置处理器
公开(公告)号：US07023383B2
公开(公告)日：2006-04-04
申请号：US10915786
申请日：2004-08-11
申请人： Louis A. Stilp , Robert J. Anderson , Matthew L. Ward
发明人： Louis A. Stilp , Robert J. Anderson , Matthew L. Ward
IPC分类号： G01S3/02
CPC分类号： H04W64/00 , G01S1/026 , G01S5/02 , G01S5/021 , G01S5/06 , H04W4/90 , H04W76/50
摘要： A multiple pass location processing method, for use in a wireless location system (WLS), comprises identifying a received transmission as requiring multiple pass location processing whereby the WLS produces a first, lower quality location estimate and then subsequently produces a second, higher quality location estimate. The WLS then produces the first location estimate and provides it to a first location application, and then produces the second location estimate. The second location estimate may be a more accurate estimate than the first location estimate and/or of a higher confidence than the first location estimate. This method is suitable, but not limited, for use in connection with locating a wireless transmitter involved in an emergency services call and routing the call to a call center.
摘要翻译：用于无线定位系统（WLS）的多路径位置处理方法包括将所接收的传输识别为需要多遍位置处理，由此WLS产生第一较低质量的位置估计，然后随后产生第二较高质量位置估计。然后，WLS产生第一位置估计并将其提供给第一位置应用，然后产生第二位置估计。第二位置估计可以是比第一位置估计更准确的估计和/或比第一位置估计高的置信度。该方法适用于但不限于用于定位涉及紧急服务呼叫的无线发射机并将呼叫路由到呼叫中心。

15. 发明授权

US07271765B2 Applications processor including a database system, for use in a wireless location system 有权
标题翻译：应用处理器包括用于无线定位系统的数据库系统
公开(公告)号：US07271765B2
公开(公告)日：2007-09-18
申请号：US11122735
申请日：2005-05-05
申请人： Louis A. Stilp , Robert J. Anderson , Matthew L. Ward
发明人： Louis A. Stilp , Robert J. Anderson , Matthew L. Ward
IPC分类号： G01S3/02
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 Applications Processor (14) including a centralized database system is used in a wireless location system (WLS). The APs 14 may be used to manage resources in the WLS, including signal collection systems (SCSs 10) and TDOA location processors (TLPs 12). Each AP 14 contains a database containing triggers for the WLS. The WLS can be programmed to locate only certain pre-determined types of transmissions. When a transmission of a pre-determined type occurs, then the WLS is triggered to begin location processing. Each AP 14 also contains applications interfaces that permit a variety of applications to securely access the WLS. These applications may access location records in real time or non-real time, create or delete certain types of triggers, or cause the WLS to take other actions. Each AP 14 is also capable of certain post-processing functions.
摘要翻译：在无线定位系统（WLS）中使用包括集中式数据库系统的应用处理器（14）。 AP 14可以用于管理WLS中的资源，包括信号收集系统（SCS 10）和TDOA位置处理器（TLP 12）。每个AP 14包含一个包含WLS触发器的数据库。可以将WLS编程为仅定位某些预定类型的传输。当发生预定类型的发送时，触发WLS开始定位处理。每个AP 14还包含允许各种应用程序安全访问WLS的应用程序接口。这些应用程序可以实时或非实时访问位置记录，创建或删除某些类型的触发器，或使WLS采取其他操作。每个AP 14还能够具有某些后处理功能。

16. 发明授权

US06873290B2 Multiple pass location processor 有权
公开(公告)号：US06873290B2
公开(公告)日：2005-03-29
申请号：US10414982
申请日：2003-04-15
申请人： Robert J. Anderson , Louis A. Stilp , Matthew L. Ward
发明人： Robert J. Anderson , Louis A. Stilp , Matthew L. Ward
IPC分类号： G01S19/03 , G01S1/02 , G01S5/02 , G01S5/06 , H04W4/22 , H04W64/00 , G01S3/02
CPC分类号： H04W64/00 , G01S1/026 , G01S5/02 , G01S5/021 , G01S5/06 , H04W4/90 , H04W76/50
摘要： A multiple pass location processing method, for use in a wireless location system (WLS), comprises identifying a received transmission as requiring multiple pass location processing whereby the WLS produces a first, lower quality location estimate and then subsequently produces a second, higher quality location estimate. The WLS then produces the first location estimate and provides it to a first location application, and then produces the second location estimate. The second location estimate may be a more accurate estimate than the first location estimate and/or of a higher confidence than the first location estimate. This method is suitable, but not limited, for use in connection with locating a wireless transmitter involved in an emergency services call and routing the call to a call center.

17. 发明授权

US06996392B2 E911 overlay solution for GSM, for use in a wireless location system 有权
标题翻译：用于GSM的E911覆盖解决方案，适用于无线定位系统
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。

18. 发明授权

US08242959B2 Sparsed U-TDOA wireless location networks 有权
标题翻译：虚拟的U-TDOA无线定位网络
公开(公告)号：US08242959B2
公开(公告)日：2012-08-14
申请号：US11736902
申请日：2007-04-18
申请人： Rashidus S. Mia , Robert J. Anderson
发明人： Rashidus S. Mia , Robert J. Anderson
IPC分类号： G01S3/02 , H04W40/00
CPC分类号： H04W16/18 , H04W24/02 , H04W64/00
摘要： In an overlay, U-TDOA-based, Wireless Location System, LMUs typically co-located with BTSs, are used to collect radio signaling both in the forward and reverse channels. Techniques are used to compensate for sparse LMU deployments where sections of the U-TDOA service area are uplink demodulation or downlink beacon discovery limited.
摘要翻译：在覆盖层中，基于U-TDOA的无线定位系统，通常与BTS共处的LMU用于在前向和反向信道中收集无线电信令。技术用于补偿在U-TDOA服务区域的部分是上行链路解调或下行链路信标发现受限的稀疏LMU部署。

19. 发明授权

US08145238B2 Location of wideband OFDM transmitters with limited receiver bandwidth 有权
标题翻译：具有有限接收机带宽的宽带OFDM发射机的位置
公开(公告)号：US08145238B2
公开(公告)日：2012-03-27
申请号：US12909732
申请日：2010-10-21
申请人： Robert J. Anderson , Rashidus S. Mia
发明人： Robert J. Anderson , Rashidus S. Mia
IPC分类号： H04W24/00 , H04B7/204 , H04B7/208
CPC分类号： H04W64/00 , G01S5/0036 , G01S5/0226 , G01S5/10
摘要： One illustrative embodiment takes the form of a system for locating wireless transmitters employing an Orthogonal Frequency Division Multiplexing (OFDM) digital modulation scheme. The OFDM scheme comprises transmitting signal components over narrowband frequency channels spanning a wideband channel. The system includes a first receiving system configured to receive a fraction of the signal components transmitted by a first wireless transmitter to be located in a fraction of the narrowband frequency channels, and to process the fraction of the signal components to derive location related measurements. The system further includes at least a second receiving system configured to receive the fraction of the signal components transmitted by the first wireless transmitter, and to process this fraction of the signal components to derive location related measurements. The system also includes a processing system configured to use location related measurements from the first and second receiving systems to compute the location of the wireless transmitter.
摘要翻译：一个说明性实施例采用采用正交频分复用（OFDM）数字调制方案来定位无线发射机的系统的形式。 OFDM方案包括在跨越宽带信道的窄带频率信道上发射信号分量。该系统包括第一接收系统，该第一接收系统被配置为接收由第一无线发射机传输的信号分量的一小部分以位于窄带频率信道的一部分中，并且处理信号分量的分数以导出位置相关测量。该系统还包括至少第二接收系统，其被配置为接收由第一无线发射机发射的信号分量的一部分，并且处理该部分信号分量以导出位置相关测量。该系统还包括配置成使用来自第一和第二接收系统的位置相关测量来计算无线发射机的位置的处理系统。

20. 发明授权

US07974640B2 System for automatically determining cell transmitter parameters to facilitate the location of wireless devices 有权
标题翻译：用于自动确定小区发射机参数的系统，以便于无线设备的位置
公开(公告)号：US07974640B2
公开(公告)日：2011-07-05
申请号：US12847419
申请日：2010-07-30
申请人： Robert J. Anderson
发明人： Robert J. Anderson
IPC分类号： H04W24/00 , H04M11/04
CPC分类号： H04W64/00 , G01S5/0036 , G01S5/0226 , G01S5/10
摘要： Several techniques for locating wireless devices involve the Mobile Stations (MS) making measurements of the signals transmitted by geographically distributed base stations within a wireless network. If some key site information is known about these transmitters, such as the transmitter location, transmit signal power, signal propagation, and transmit signal timing, measurements of these transmit signals by a MS can be used to determine the position of the MS. An automatic method to detect transmitters, identify key transmitter information, and utilize the base station transmit signals to perform location is presented. In addition, this method facilitates the use of cell site transmit signals that are part of multiple wireless networks.
摘要翻译：用于定位无线设备的几种技术涉及移动站（MS），以对无线网络内的地理分布式基站发送的信号进行测量。如果关于这些发射机的一些关键站点信息，例如发射机位置，发射信号功率，信号传播和发射信号定时，则可以使用MS对这些发射信号的测量来确定MS的位置。提出了一种检测发射机，识别关键发射机信息以及利用基站发射信号执行定位的自动方法。此外，该方法有助于使用作为多个无线网络一部分的小区站点发射信号。

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