公开(公告)号：EP1340996A2

公开(公告)日：2003-09-03

申请号：EP02028100.2

申请日：2002-12-17

申请人： eRide, Inc. ,  SEIKO EPSON CORPORATION

发明人： Kimura, Akira ,  McBurney, Paul W.

IPC分类号： G01S5/14 ,  G01S1/04

CPC分类号： G01S19/24 ,  G01S19/05 ,  G01S19/09 ,  G01S19/256 ,  G01S19/258

摘要： A navigation-satellite receiver uses a reference station accessible over a network to store NAV data subframes for pattern matching at a network client. Alternatively, the pattern matching is performed by the server when per-byte communication costs are high. The stored NAV data repeats ephemeris data every thirty seconds, and full almanac data every 12.5 minutes. This permits the client to instantly recognize where in the NAV data sequence its own received signals are, and it need not actually wait to receive the preambles in the TLM words. Several precious seconds are therefore saved in producing a rapid time-to-first-fix.

摘要翻译： 导航卫星接收机使用可通过网络访问的参考站来存储用于网络客户端上的模式匹配的NAV数据子帧。 或者，当每字节通信成本高时，由服务器执行模式匹配。 存储的NAV数据每30秒重复星历数据，每12.5分钟重复一次历书数据。 这允许客户端立即识别NAV数据序列中其自己的接收信号的位置，并且实际上不需要等待接收TLM字中的前同步码。 因此，节省了几个宝贵的时间，以便快速的首次修复。

公开(公告)号：EP1336865A2

公开(公告)日：2003-08-20

申请号：EP02028097.0

申请日：2002-12-17

申请人： eRide, Inc. ,  SEIKO EPSON CORPORATION

发明人： McBurney, Paul W. ,  Victa, Kenneth U.

IPC分类号： G01S5/14

CPC分类号： G01S19/258 ,  G01S19/235

摘要： A navigation-satellite receiver depends on a network server to occasionally provide key pieces of information needed during its initialization. The navigation-satellite receiver critically maintains its position uncertainty, sigmaPos, to under 150-km. Therefore, at least every five minutes, the navigation-satellite receiver uses a network connection to download all the ephemeris information for all the operational SV's. The power-off time uncertainty, sigmaTime, is kept under one millisecond by running a real-time clock with a software-compensated crystal oscillator reference. Such information is instantly available at power-up to reduce the time necessary to produce a first fix when receiver signal levels are under -150dbm even for the strongest SV.

摘要翻译： 导航卫星接收机取决于网络服务器偶尔在其初始化期间提供所需的关键信息。 导航卫星接收机严格将其位置不确定度sigmaPos保持在150公里以下。 因此，至少每五分钟，导航卫星接收机使用网络连接来下载所有操作SV的所有星历信息。 通过使用软件补偿晶体振荡器参考运行实时时钟，断电时间不确定度sigmaTime保持在一毫秒以下。 这种信息在上电时立即可用，以减少接收机信号电平低于-150dbm时产生第一个固定所需的时间，即使对于最强的SV。

公开(公告)号：EP1336864A2

公开(公告)日：2003-08-20

申请号：EP02028095.4

申请日：2002-12-17

申请人： eRide, Inc. ,  SEIKO EPSON CORPORATION

发明人： Edwards, Stepehn J. ,  McBurney, Paul W.

IPC分类号： G01S5/14

CPC分类号： G01S19/42

摘要： A navigation-satellite receiver comprises means for initialization that gets a head start by knowing time to within a few seconds and position to within 150 kilometers. A two-dimensional grid of points is setup with constant altitude that represents solution starting points within the 150 kilometer area. Fractional pseudoranges from each satellite in a constellation are inspected for a best initial fit with the points in the grid. A variety of time bias adjustments within the time bounds are also tried against the points to find a best fitting point. That point then is used in a drive to find the final solution and to produce the first fix from cold start.

摘要翻译： 导航卫星接收机包括用于初始化的装置，其通过将时间知道在几秒钟内并且位置在150公里内来获得头部开始。 二维网格点建立在恒定高度，表示在150公里范围内的解决方案起点。 检查星座中每个卫星的分数伪距，以与网格中的点进行最佳初始拟合。 在时间范围内的各种时间偏差调整也针对点进行了尝试，以找到最佳拟合点。 然后在驱动器中使用该点来找到最终解决方案，并从冷启动产生第一个修复。

公开(公告)号：EP1336861A2

公开(公告)日：2003-08-20

申请号：EP02028099.6

申请日：2002-12-17

申请人： eRide, Inc. ,  SEIKO EPSON CORPORATION

发明人： McBurney, Paul W.

IPC分类号： G01S1/04 ,  H03L1/02

CPC分类号： H03L7/00 ,  G01S19/235 ,  G01S19/258 ,  H03L1/026

摘要： A navigation-satellite receiver comprises a real-time clock that can be slaved to the highly accurate time base of the GPS system. During such times, the amount of correction and the operating temperature are both tracked. It is. assumed the operating temperature will has the greatest influence of frequency errors later when the real-time clock cannot be slaved to the GPS time base. When the receiver is powered-down, the real time clock is nevertheless kept alive. Its free-running frequency is corrected for temperature. The next time the receiver is powered up, time accurate to better than one millisecond in a day can be obtained instantly for use in other receiver initialization procedures.

摘要翻译： 导航卫星接收机包括可以被从属于GPS系统的高精度时基的实时时钟。 在这样的时间，追踪量和操作温度。 它是。 假设当实时时钟不能从机到GPS时基时，工作温度对频率误差影响最大。 当接收机掉电时，实时时钟仍然存活。 其自由运行频率由温度校正。 下一次接收机上电时，可以立即获得时间准确到一天以上的一毫秒以用于其他接收机初始化过程。

公开(公告)号：EP1336860A2

公开(公告)日：2003-08-20

申请号：EP02028094.7

申请日：2002-12-17

申请人： eRide, Inc. ,  SEIKO EPSON CORPORATION

发明人： McBurney, Paul W. ,  Woo, Arthur N.

IPC分类号： G01S1/04

CPC分类号： G01S19/36

摘要： A navigation receiver comprises a digital sampler that precedes digital signal processing which can operate at a high rate and a low rate. If the high rate is selected for noise reduction by non-coherent averaging, the samples are averaged over time and transformed to the low rate. The digital signal processor is fed only low-rate samples in either case.

摘要翻译： 导航接收机包括在数字信号处理之前的数字采样器，其可以以高速率和低速率操作。 如果通过非相干平均来选择高速率进行噪声降噪，则样本随时间平均并转换为低速率。 在这两种情况下，数字信号处理器仅供给低速率采样。

公开(公告)号：EP1237008A2

公开(公告)日：2002-09-04

申请号：EP02004516.7

申请日：2002-02-27

申请人： eRide, Inc. ,  SEIKO EPSON CORPORATION

发明人： McBurney, Paul W. ,  Woo, Arthur N.

IPC分类号： G01S1/02 ,  G01S5/10 ,  G01S5/14

CPC分类号： G01S19/235 ,  G01C21/206 ,  G01S5/10 ,  G01S19/05 ,  G01S19/256 ,  G01S19/29 ,  G01S19/41

摘要： A navigation system comprises a cell-phone, a base cellular telephone site, and a webserver. Each is paired with a GPS receiver. The GPS receiver associated with the cell-phone is aided with information received from the cell-site and webserver that help reduce satellite search uncertainty. Time difference and/or frequency difference measurements are taken with data collected from what the cell-phone and its GPS receiver assume to be accurate time and frequency. Correction information is used in post-processing of the velocity solutions computed by the cell-phone to arrive at more precise determinations for the system.

摘要翻译： 导航系统包括手机，基站的蜂窝电话的网站和Web服务器。 每搭配GPS接收器。 与手机相关的GPS接收器辅助从蜂窝基站和网络服务器接收到的信息也有助于减少卫星搜索的不确定性。 时差和/或频率差测量采用从什么手机和GPS接收器假设是准确的时间和频率收集到的数据。 校正信息由蜂窝电话计算出的速度解进行后处理用于在该系统更精确的测定到达。

公开(公告)号：EP1439401B1

公开(公告)日：2014-01-08

申请号：EP03026670.4

申请日：2003-11-19

申请人： eRide, Inc. ,  Seiko Epson Corporation

发明人： McBurney, Paul W.

IPC分类号： G01S19/25

CPC分类号： G01S19/25

公开(公告)号：EP1336864B1

公开(公告)日：2013-05-15

申请号：EP02028095.4

申请日：2002-12-17

申请人： eRide, Inc. ,  Seiko Epson Corporation

发明人： Edwards, Stepehn J. ,  McBurney, Paul W.

IPC分类号： G01S5/14 ,  G01S19/42

CPC分类号： G01S19/42

公开(公告)号：EP1337058B1

公开(公告)日：2011-03-09

申请号：EP02028096.2

申请日：2002-12-17

申请人： eRide, Inc. ,  Seiko Epson Corporation

发明人： Matsushita, Hiroshi ,  McBurney, Paul W.

IPC分类号： G01S19/25

CPC分类号： G01S19/256 ,  H04J3/0644 ,  H04J3/0667

公开(公告)号：EP1600787A3

公开(公告)日：2009-04-15

申请号：EP05010141.9

申请日：2005-05-10

申请人： Seiko Epson Corporation ,  eRide, Inc.

发明人： McBurney, Paul W. ,  Vaucher, Frederic

IPC分类号： G01S1/00

CPC分类号： G01S19/258

摘要： A navigation satellite receiver accepts satellite-position table messages comprising truncated GPS ephemeris parameters. In particular, at least one of the two harmonic corrections to inclination angle, Cic and Cis, are not communicated and not used in the solution of navigation receiver position. In a first method embodiment of the present invention, both the two harmonic corrections to inclination angle, Cic and Cis, are omitted from the computation. In a second method embodiment of the present invention, only one of the two harmonic corrections to inclination angle, Cic and Cis, are omitted from the computation, depending on Min ( C is sin(2φ k ), C ic cos(2φ k )).