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11. 发明授权

US06563460B2 Collision recovery in a wireless location system 有权
公开(公告)号：US06563460B2
公开(公告)日：2003-05-13
申请号：US10005068
申请日：2001-12-05
申请人： Louis A. Stilp , Joseph W. Sheehan , Alan E. E. Rogers , Robert J. Anderson
发明人： Louis A. Stilp , Joseph W. Sheehan , Alan E. E. Rogers , Robert J. Anderson
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 collision recovery method for use in a Wireless Location System includes receiving a transmission from a wireless transmitter at multiple signal collection systems and multiple antenna ports of each of the multiple signal collection systems. At each of the multiple signal collection systems, the transmission received at each antenna port is converted into a digital format, and digital data representative of the received transmission is stored. The transmission is then demodulated, and TDOA analysis is performed on the digital data from pairs of signal collection systems. The location of the wireless transmitter is determined using the TDOA data. The method further involves verifying that the RF data from each antenna port is from the wireless transmitter to be located, e.g., by demodulating a segment of the transmission received at each antenna port and verifying that at least a combination of the following fields is correct: MIN, MSID, TMSI, IMSI, and ESN.

12. 发明授权

US06285321B1 Station based processing method for a wireless location system 有权
公开(公告)号：US06285321B1
公开(公告)日：2001-09-04
申请号：US09645802
申请日：2000-08-24
申请人： Louis A. Stilp , Joseph W. Sheehan , Alan E. E. Rogers , Robert J. Anderson
发明人： Louis A. Stilp , Joseph W. Sheehan , Alan E. E. Rogers , Robert J. Anderson
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 station-based method for use in a wireless location system determines the geographic location of a mobile wireless transmitter. The wireless location system includes signal collection systems and location processors for processing digital data provided by the signal collection systems. The station-based method comprises receiving a transmission from a wireless transmitter at multiple antennas and at multiple signal collection systems. The transmission is converted into a digital format in a receiver connected to each antenna at the multiple signal collection systems. At each signal collection system, digital data representative of the received transmissions are stored in a memory. The transmission is then demodulated at a first signal collection system, and appropriate phase correction intervals are determined. At the first signal collection system, for each such phase correction interval, appropriate phase correction parameters are calculated, and the phase correction parameters are encoded along with the demodulated data. The demodulated data and phase correction parameters are sent from the first signal collection system to a location processor. At the location processor, the signal collection systems and receiving antennas to use in location processing are determined. The demodulated data and any needed phase correction parameters are then sent from the location processor to a plurality of signal collection systems that will be used in location processing. At each signal collection system to be used in location processing, a first re-modulated signal based upon the demodulated data and any needed phase correction parameters is created; and a time difference of arrival (TDOA) determination is performed using the digital data stored in memory and the first re-modulated signal. The TDOA and multipath mitigation data are sent from the signal collection systems to the location processor. Finally, the location of the wireless transmitter is determined at the location processor using the TDOA data.

13. 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。

14. 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。

15. 发明授权

US06876859B2 Method for estimating TDOA and FDOA in a wireless location system 有权
标题翻译：在无线定位系统中估计TDOA和FDOA的方法
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。

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

US07495544B2 Component diversity in a RFID security network 有权
标题翻译： RFID安全网络中的组件多样性
公开(公告)号：US07495544B2
公开(公告)日：2009-02-24
申请号：US11321776
申请日：2005-12-29
申请人： Louis A. Stilp
发明人： Louis A. Stilp
IPC分类号： H04Q5/22
CPC分类号： G05B9/03 , G05B15/02 , G06K7/0008 , G08B13/248 , G08B19/005 , G08B25/004 , G08B25/009 , G08B25/08 , G08B25/10 , G08B29/06 , G08B29/14 , H04L12/2803 , H04L12/2825 , H04L63/1408 , H04M3/12 , H04M2242/04 , H04W12/12 , H04W24/02 , H04W88/08
摘要： An RFID security network using system component diversity and system spatial diversity is disclosed. The security network includes a plurality of network base units, each communicating with a plurality of transponders, or security transmitters. Through appropriate distributive placement of the plurality of base units, along with appropriate placement of the transponders, the redundancy and reliability of the RF communication links between one or more base units and one or more transponders is increased. Moreover, because each of the base units is capable of being a communications gateway with an external network, including a telecommunications network, the security network's access to an outside telecommunications network is redundant and highly reliable. Accordingly, even if an intruder attempts to disable the security system communications to an external network, the inventive security network has redundant and alternative communication links to an external network. Such component and spatial diversity substantially enhances the security network's reliability.
摘要翻译：公开了一种使用系统组件分集和系统空间分集的RFID安全网络。安全网络包括多个网络基站单元，每个网络基站单元与多个应答器或安全发射机进行通信。通过适当地布置多个基本单元以及应答器的适当放置，增加了一个或多个基本单元与一个或多个应答器之间的RF通信链路的冗余性和可靠性。此外，由于每个基本单元能够成为具有包括电信网络在内的外部网络的通信网关，所以安全网络对外部电信网络的访问是冗余的并且是高度可靠的。因此，即使入侵者尝试禁用与外部网络的安全系统通信，本发明的安全网络具有到外部网络的冗余和备选的通信链路。这种组件和空间分集大大增强了安全网络的可靠性。

18. 发明授权

US07283048B2 Multi-level meshed security network 有权
标题翻译：多级网状安全网络
公开(公告)号：US07283048B2
公开(公告)日：2007-10-16
申请号：US11321429
申请日：2005-12-29
申请人： Louis A. Stilp
发明人： Louis A. Stilp
IPC分类号： G08B1/08
CPC分类号： G05B9/03 , G05B15/02 , G06K7/0008 , G08B13/248 , G08B19/005 , G08B25/009 , G08B25/08 , G08B25/10 , G08B29/06 , G08B29/14 , H04L12/2803 , H04L12/2825 , H04L63/1408 , H04M3/12 , H04M2242/04 , H04W12/12 , H04W24/02 , H04W88/08 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/166 , Y02D70/22 , Y02D70/26
摘要： A multi-level meshed security network. The network includes a first level having a plurality of base units, supporting relatively high power RF communications, and a controller function. The second level has a plurality of transponders, supporting relatively low power RF communications, and at least one sensor. Each of the components of the first level communicates with each other and with each of the components of the second level.
摘要翻译：多级网状安全网络。网络包括具有多个基本单元的第一级，支持相对高功率的RF通信以及控制器功能。第二级具有多个转发器，支持相对低功率的RF通信，以及至少一个传感器。第一级的每个组件彼此和第二级的每个组件通信。

19. 发明授权

US07053764B2 Controller for a security system 有权
标题翻译：用于安全系统的控制器
公开(公告)号：US07053764B2
公开(公告)日：2006-05-30
申请号：US10366334
申请日：2003-02-14
申请人： Louis A. Stilp
发明人： Louis A. Stilp
IPC分类号： G08B29/00
CPC分类号： G08B25/008
摘要： A controller for use in a security system based upon RFID techniques. The controller can use power line carrier communications to communicate with other devices in the security system. The controller can use a modem or wireless module to connect to public networks. Multiple controllers can be used in a system, and the controllers can arbitrate to determine a master controller. The controller contains configuration data and tables that define the relationships between devices in the security system. The controller can receive communications from other devices in the system and can interface with legacy devices previously used with wired security systems. The controller can send messages based upon predetermined events, and can support a remote alerting function.
摘要翻译：一种用于基于RFID技术的安全系统中的控制器。控制器可以使用电力线载波通信来与安全系统中的其他设备进行通信。控制器可以使用调制解调器或无线模块连接到公共网络。可以在系统中使用多个控制器，并且控制器可以仲裁以确定主控制器。控制器包含定义安全系统中设备之间关系的配置数据和表。控制器可以从系统中的其他设备接收通信，并且可以与以前与有线安全系统一起使用的传统设备进行接口。控制器可以基于预定事件发送消息，并且可以支持远程警报功能。

20. 发明授权

US06317081B1 Internal calibration method for receiver system of a wireless location system 有权
标题翻译：无线定位系统接收机系统的内部校准方法
公开(公告)号：US06317081B1
公开(公告)日：2001-11-13
申请号：US09495421
申请日：2000-01-31
申请人： Louis A. Stilp
发明人： Louis A. Stilp
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： An internal calibration method, used to calibrate a receiver system used in a wireless location system, comprises injecting a signal into the receiver system and utilizing the signal to obtain an estimate of the manner in which the transfer function of the receiver system varies across the bandwidth of the receiver system. This estimate is used to mitigate the effects of the variation of the transfer function on time measurements made by the receiver system. Such time measurements are used to locate mobile transmitters.
摘要翻译：用于校准在无线定位系统中使用的接收机系统的内部校准方法包括将信号注入到接收机系统中并利用该信号来获得接收机系统的传递功能在带宽上变化的方式的估计的接收机系统。该估计用于减轻传输函数的变化对接收机系统进行的时间测量的影响。这种时间测量用于定位移动发射机。

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