公开(公告)号：US20070206663A1

公开(公告)日：2007-09-06

申请号：US11681183

申请日：2007-03-02

Applicant: Douglas Grover ,  Christopher Patrick ,  Kai Tang

Inventor： Douglas Grover ,  Christopher Patrick ,  Kai Tang

IPC: H04B1/00

CPC classification number: G01S19/30 ,  G01S19/29 ,  G01S19/37 ,  H04B1/70775 ,  H04B1/708 ,  H04B2201/7071

Abstract: Apparatus and methods of implementing code space search of received signals are described herein. A code space search is implemented as a searcher that perform a subtask that is dynamically reconfigurable at each boundary of an initial integration time. Each particular subtask sets forth a programmable configuration of coherent integration hypothesis that are performed during the initial integration time. The searcher stores the results of the coherent integration hypothesis in a first portion of memory. A search accelerator operates on the initial integration results. The search accelerator can perform coherent integration of various frequency bins of different timing hypothesis, can generate energy values of the coherent integration results, and can generate a non-coherent energy summation. The energy values of the coherent integrations and non-coherent energy summations are stored in a second portion of memory. The ability to reconfigure the subtasks and accelerator operation provides flexibility in search space dimensions.

Abstract translation: 本文描述了实现接收信号的码空间搜索的装置和方法。 代码空间搜索被实现为搜索器，其执行在初始积分时间的每个边界处可动态地重新配置的子任务。 每个特定子任务列出了在初始积分时间期间执行的相干积分假设的可编程配置。 搜索者将相干整合假设的结果存储在存储器的第一部分中。 搜索加速器对初始集成结果进行操作。 搜索加速器可以执行不同时间假设的各种频率段的相干整合，可以产生相干积分结果的能量值，并可以产生非相干能量求和。 相干积分和非相干能量相加的能量值被存储在存储器的第二部分中。 重新配置子任务和加速器操作的能力提供了搜索空间维度的灵活性。

公开(公告)号：US08279910B2

公开(公告)日：2012-10-02

申请号：US11681183

申请日：2007-03-02

Applicant: Douglas Grover ,  Christopher Patrick ,  Kai Tang

Inventor： Douglas Grover ,  Christopher Patrick ,  Kai Tang

IPC: H04B1/00

CPC classification number: G01S19/30 ,  G01S19/29 ,  G01S19/37 ,  H04B1/70775 ,  H04B1/708 ,  H04B2201/7071

Abstract: Apparatus and methods of implementing code space search of received signals are described herein. A code space search is implemented as a searcher that perform a subtask that is dynamically reconfigurable at each boundary of an initial integration time. Each particular subtask sets forth a programmable configuration of coherent integration hypothesis that are performed during the initial integration time. The searcher stores the results of the coherent integration hypothesis in a first portion of memory. A search accelerator operates on the initial integration results. The search accelerator can perform coherent integration of various frequency bins of different timing hypothesis, can generate energy values of the coherent integration results, and can generate a non-coherent energy summation. The energy values of the coherent integrations and non-coherent energy summations are stored in a second portion of memory. The ability to reconfigure the subtasks and accelerator operation provides flexibility in search space dimensions.

Abstract translation: 本文描述了实现接收信号的码空间搜索的装置和方法。 代码空间搜索被实现为搜索器，其执行在初始积分时间的每个边界处可动态地重新配置的子任务。 每个特定子任务列出了在初始积分时间期间执行的相干积分假设的可编程配置。 搜索者将相干整合假设的结果存储在存储器的第一部分中。 搜索加速器对初始集成结果进行操作。 搜索加速器可以执行不同时间假设的各种频率段的相干整合，可以产生相干积分结果的能量值，并可以产生非相干能量求和。 相干积分和非相干能量相加的能量值被存储在存储器的第二部分中。 重新配置子任务和加速器操作的能力提供了搜索空间维度的灵活性。

公开(公告)号：US20120220294A1

公开(公告)日：2012-08-30

申请号：US13214055

申请日：2011-08-19

Applicant: Peter Gaal ,  Leonid Sheynblat ,  Christopher Patrick ,  Wyatt Thomas Riley

Inventor： Peter Gaal ,  Leonid Sheynblat ,  Christopher Patrick ,  Wyatt Thomas Riley

IPC: H04W24/00

CPC classification number: G01S19/25 ,  G01S19/254 ,  G01S19/258 ,  G01S19/27

Abstract: Signal acquisition assistance data is obtained for receiving devices such as wireless position assisted location devices seeking signals from any source, such as satellite vehicles and base stations. The data may be obtained from previously acquired data, based upon evaluation of changes in parameters such as time and location that may jeopardize validity. In some cases the data may be adjusted for the changes in parameters. Refined data may be calculated by a receiver using partial measurements of signal sets, particularly if the acquisition assistance data provided by a remote entity includes more distinct parameters than have typically been provided. New data need not be obtained until the validity of previous data expires due to limitations upon temporal extrapolation using Doppler coefficients, unless mobile station movement that cannot be compensated is detected, and jeopardizes validity of the previous data.

Abstract translation: 获得信号获取辅助数据，用于接收诸如无线位置辅助位置设备之类的设备，寻找来自诸如卫星车辆和基站的任何来源的信号。 可以基于对可能危及有效性的诸如时间和位置的参数的变化的评估，从先前获取的数据获得数据。 在某些情况下，可能会根据参数的变化调整数据。 精细数据可以由接收机使用信号组的部分测量来计算，特别是如果由远程实体提供的获取辅助数据包含比通常提供的更多不同参数。 除非先前数据的有效性由于使用多普勒系数的时间外推的限制而过期，否则不需要获得新数据，除非检测到无法补偿的移动台移动，并且危及先前数据的有效性。

公开(公告)号：US08031113B2

公开(公告)日：2011-10-04

申请号：US10554629

申请日：2004-04-02

Applicant: Peter Gaal ,  Leonid Sheynblat ,  Christopher Patrick ,  Wyatt Thomas Riley

Inventor： Peter Gaal ,  Leonid Sheynblat ,  Christopher Patrick ,  Wyatt Thomas Riley

IPC: G01S19/25

CPC classification number: G01S19/25 ,  G01S19/254 ,  G01S19/258 ,  G01S19/27

Abstract: Signal acquisition assistance data is obtained for receiving devices such as wireless position assisted location devices seeking signals from any source, such as satellite vehicles and base stations. The data may be obtained from previously acquired data, based upon evaluation of changes in parameters such as time and location that may jeopardize validity. In some cases the data may be adjusted for the changes in parameters. Refined data may be calculated by a receiver using partial measurements of signal sets, particularly if the acquisition assistance data provided by a remote entity includes more distinct parameters than have typically been provided. New data need not be obtained until the validity of previous data expires due to limitations upon temporal extrapolation using Doppler coefficients, unless mobile station movement that cannot be compensated is detected, and jeopardizes validity of the previous data.

Abstract translation: 获得信号获取辅助数据，用于接收诸如无线位置辅助位置设备之类的设备，寻找来自诸如卫星车辆和基站的任何来源的信号。 可以基于对可能危及有效性的诸如时间和位置的参数的变化的评估，从先前获取的数据获得数据。 在某些情况下，可能会根据参数的变化调整数据。 精细数据可以由接收机使用信号组的部分测量来计算，特别是如果由远程实体提供的获取辅助数据包含比通常提供的更多不同参数。 除非先前数据的有效性由于使用多普勒系数的时间外推的限制而过期，否则不需要获得新数据，除非检测到无法补偿的移动台移动，并且危及先前数据的有效性。

公开(公告)号：US07995538B2

公开(公告)日：2011-08-09

申请号：US11400441

申请日：2006-04-07

Applicant: Christopher Patrick ,  Sanjeev Khushu ,  Ajay Vasanadu

Inventor： Christopher Patrick ,  Sanjeev Khushu ,  Ajay Vasanadu

IPC: H04B7/216

CPC classification number: H04W28/10 ,  G01S19/05 ,  G01S19/09 ,  H04W74/00

Abstract: A method and apparatus for throttling requests to access a shared resource throttles requests that are made too frequently. The methodology reduces the frequency of requests by setting a throttle end time that is based upon the frequency of previously desired access. Access is denied for a time period up until the throttle end time.

Abstract translation: 用于限制访问共享资源的请求的方法和装置节制太频繁的请求。 该方法通过基于先前期望的访问频率设置节气门结束时间来减少请求的频率。 访问被拒绝一段时间，直到节气门结束时间。

公开(公告)号：US20090079636A1

公开(公告)日：2009-03-26

申请号：US12239639

申请日：2008-09-26

Applicant: Wyatt T. Riley ,  Christopher Patrick

Inventor： Wyatt T. Riley ,  Christopher Patrick

IPC: G01S3/02

CPC classification number: G01S5/0221 ,  G01S5/0278 ,  G01S19/39

Abstract: Methods and apparatuses for the processing of false alarms in position determination. At least one embodiment of the present invention estimates and uses measurement false alarm probabilities in the position determination process. In one embodiment, the estimated measurement false alarm probabilities are combined to determine the reliability of the determined position solution or the reliability of the set of measurements as a collection. In one embodiment, the estimated measurement false alarm probabilities are used in the isolation and elimination of faulty measurements. For example, the traditional geometry based metric for identifying a faulty measurement is further weighted according to the measurement false alarm probabilities in order to determine the faulty measurement.

Abstract translation: 在位置确定中处理假警报的方法和装置。 本发明的至少一个实施例在位置确定处理中估计和使用测量误报概率。 在一个实施例中，组合估计的测量误报概率以确定确定的位置解的可靠性或该组测量的可靠性作为集合。 在一个实施例中，估计的测量误报概率用于隔离和消除故障测量。 例如，为了确定有故障的测量，根据测量误报概率进一步加权用于识别故障测量的传统的基于几何的度量。

公开(公告)号：US20060256760A1

公开(公告)日：2006-11-16

申请号：US11400441

申请日：2006-04-07

Applicant: Christopher Patrick ,  Sanjeev Khushu ,  Ajay Vasanadu

Inventor： Christopher Patrick ,  Sanjeev Khushu ,  Ajay Vasanadu

IPC: H04B7/212

CPC classification number: H04W28/10 ,  G01S19/05 ,  G01S19/09 ,  H04W74/00

Abstract: A method and apparatus for throttling requests to access a shared resource throttles requests that are made too frequently. The methodology reduces the frequency of requests by setting a throttle end time that is based upon the frequency of previously desired access. Access is denied for a time period up until the throttle end time.

Abstract translation: 用于限制访问共享资源的请求的方法和装置节制太频繁的请求。 该方法通过基于先前期望的访问频率设置节气门结束时间来减少请求的频率。 访问被拒绝一段时间，直到节气门结束时间。

公开(公告)号：US20060114984A1

公开(公告)日：2006-06-01

申请号：US10991625

申请日：2004-11-17

Applicant: Peter Gaal ,  Christopher Patrick

Inventor： Peter Gaal ,  Christopher Patrick

IPC: H04B1/66

CPC classification number: G01S19/09 ,  G01S19/23 ,  G01S19/235 ,  G01S19/29

Abstract: A receiving method and apparatus for increasing coherent integration length while receiving a positioning signal from transmitters such as GPS satellites. In order to compensate for frequency drifts that may occur in the positioning signal, a hypothesis is made as to the frequency drift, which is inserted into the receiving algorithm. Advantageously, the length of coherent integration can be increased at the expense of reducing the length of incoherent integration while keeping the total integration length the same, the net effect of which is an increase in signal detection sensitivity. The frequency drift hypothesis has any appropriate waveform; for example, approximately linear or exponential. The hypothesized frequency drift can be inserted into the receiver algorithm in any suitable place; for example, the data block may be adjusted for the hypothesized frequency drift, alternatively the reference signal may be adjusted, or the frequency samples of either the data block or the reference signal may be adjusted.

Abstract translation: 一种用于在从诸如GPS卫星的发射机接收定位信号的同时增加相干积分长度的接收方法和装置。 为了补偿定位信号中可能出现的频率漂移，就会对插入到接收算法中的频率漂移进行假设。 有利地，相干积分的长度可以以降低非相干积分的长度为代价而增加，同时保持总积分长度相同，其净效应是信号检测灵敏度的增加。 频率漂移假说有任何适当的波形; 例如，大致线性或指数。 假设的频率漂移可以在任何合适的地方插入接收机算法; 例如，可以针对假设的频率漂移来调整数据块，或者可以调整参考信号，或者可以调整数据块或参考信号的频率样本。

公开(公告)号：US06961367B2

公开(公告)日：2005-11-01

申请号：US10392442

申请日：2003-03-17

Applicant: Emilija Simic ,  Christopher Patrick

Inventor： Emilija Simic ,  Christopher Patrick

IPC: G01S1/00 ,  G01S5/02 ,  G01S19/06 ,  G01S19/25 ,  H04B7/26 ,  H04Q7/38 ,  H04B7/185

CPC classification number: H04B7/2606 ,  G01S5/0226 ,  G01S5/0273 ,  G01S19/256 ,  G01S19/258 ,  G01S19/46 ,  H04B7/155

Abstract: A forward link repeater frequency watermarking (FLRFWM) system and method that enable accurate position location of mobile stations in areas where repeaters are present by watermarking repeated signals with repeater information. A repeater watermarks a forward link signal with a (unique or non-unique) fast frequency modulation waveform watermark every time a signal passes through the repeater. A mobile station detects and/or identifies the fast frequency watermark on the forward link signal to determine repeater information that aids the network position determination entity or mobile station position location system in determining position location using AFLT and/or A-GPS systems. A forward link fast frequency watermarking system described herein achieves minimal impact on FL, AFLT, and GPS performance, good detection, identification and false alarm probabilities, short time-to-detect/identify, and good detection/identification sensitivity.

Abstract translation: 一种前向链路中继器频率水印（FLRFWM）系统和方法，其通过对具有中继器信息的重复信号进行水印来实现移动站在存在中继器的区域中的准确位置定位。 中继器每当信号通过中继器时，对具有（唯一或非唯一）快速频率调制波形水印的前向链路信号进行水印。 移动台在前向链路信号上检测和/或识别快速频率水印，以确定使用AFLT和/或A-GPS系统来帮助网络位置确定实体或移动台位置系统确定位置定位的中继器信息。 这里描述的前向链路快速水印系统对FL，AFLT和GPS性能，良好的检测，识别和假警报概率，短时间检测/识别以及良好的检测/识别灵敏度的影响最小。

公开(公告)号：US06580746B2

公开(公告)日：2003-06-17

申请号：US09941362

申请日：2001-08-28

Applicant: Raghu Challa ,  Farrokh Abrishamkar ,  Ian Fevrier ,  Serguei Glazko ,  Way-Shing Lee ,  Christopher Patrick ,  Gil Sih

Inventor： Raghu Challa ,  Farrokh Abrishamkar ,  Ian Fevrier ,  Serguei Glazko ,  Way-Shing Lee ,  Christopher Patrick ,  Gil Sih

IPC: H04B1500

CPC classification number: H04B1/7075 ,  H04B7/2668 ,  H04B17/0085 ,  H04B17/3912 ,  H04W24/00

Abstract: A spread spectrum wireless device (100) may include a receiver (110), a searcher (128), a search controller (130) and other features. The search controller (130) selectively generates control signals to control the searcher (128), which searches for a spread-spectrum signal. In one embodiment, the architecture of the searcher (128) is dynamically configurable by the search controller (130) to selectively search multiple channels using multiple frequency bins for the signal.