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    Method for keeping accurate time for a hybrid GPS receiver and mobile phone when powered off
    3.
    发明公开
    Method for keeping accurate time for a hybrid GPS receiver and mobile phone when powered off 有权
    保持准确的时间用于混合GPS接收机和移动电话关闭时的方法和装置

    公开(公告)号：EP1715358A1

    公开(公告)日：2006-10-25

    申请号：EP06003175.4

    申请日：2006-02-16

    申请人： SEIKO EPSON CORPORATION ,  eRide, Inc.

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

    IPC分类号： G01S1/00

    CPC分类号： G01S19/235 ,  G01S19/03 ,  G01S19/254 ,  G01S19/256 ,  G01S19/258 ,  G01S19/27 ,  G01S19/34 ,  G01S19/35 ,  G01S19/37

    摘要： A hybrid navigation satellite receiver and mobile telephone uses only two crystal oscillators. One that operates a master clock around 27-MHz and that consumes milliwatts of power. The other oscillator consumes only microwatts of power and operates continuously on battery power at about 32-KHz. Only the second, low frequency oscillator is kept running during power "off". On power "restart", a real-time-clock counter is consulted to cause an estimate of the GPS system time to be regenerated and supplied to the GPS-DSP to quicken its initialization. The master clock is GPS-calibrated, and the accurate clock is used to drive NCO's for the mobile telephone part and host CPU.

    摘要翻译： 一种混合导航卫星接收机和移动电话仅使用两个晶体振荡器。 一个没有工作约27 MHz的主时钟，做电源的消耗毫瓦。 另一振荡器只消耗功率的微瓦和大约32KHz的电池电源连续操作。 只有第二，低频振荡器保持权力运行过程中“关闭”。 上电“重启”，一个实时时钟计数器协商，以使加速的GPS系统时间的估计值再生并提供给GPS DSP来初始化。 主时钟是GPS校准，并且精确的时钟被用于驱动NCO的用于移动电话部分和主机CPU。

    High-sensitivity satellite positioning system receivers and reception methods
    4.
    发明公开
    High-sensitivity satellite positioning system receivers and reception methods 有权
    HochempfindlicheSatellitenpositionierungssystemempfängerund Empfangsverfahren

    公开(公告)号：EP1439401A1

    公开(公告)日：2004-07-21

    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： G01S5/14

    CPC分类号： G01S19/25

    摘要： A navigation satellite receiver method determines what navData is on-hand, what level of time uncertainty exists, and what position uncertainty there is for the receiver at turn-on. Indoor and outdoor search engines are used that can vary their search windows and dwell times to increase receiver sensitivity. Received signals are stored in several playback loops that can be operated in parallel to increase search sensitivity in the face of large uncertainties in time ad frequency, and still reduce the time-to-first-fix. Satellite acquisition can be achieved even when the navData is too weak to be read by requesting help from a server.

    摘要翻译： 导航卫星接收机方法确定什么navData是手头的，什么时间的时间不确定性存在，以及什么位置的不确定性是开放的接收机。 使用室内和室外搜索引擎，可以改变其搜索窗口和驻留时间，以增加接收机灵敏度。 接收的信号存储在可以并行操作的多个回放循环中，以在面对时间广度频率的大的不确定性的情况下提高搜索灵敏度，并且仍然缩短了首次定位。 即使navData太弱而无法通过请求服务器的帮助来读取，也可以实现卫星采集。

    Method and system for distributing absolute time in a GPS receiver network
    5.
    发明公开
    Method and system for distributing absolute time in a GPS receiver network 有权
    方法和系统在GPS接收器网络的绝对时间分布

    公开(公告)号：EP1337058A3

    公开(公告)日：2004-02-04

    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： G01S5/14 ,  H04J3/06

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

    摘要： A navigation-satellite receiver support data network comprises a server connected to the Internet to provide initialization information to clients for faster cold starts. The server includes a GPS receiver that provides for tracking of a constellation of navigation satellites. When a client is started cold, time and frequency are initially unknown to it. Test messages are sent back and forth over the Internet and a path delay time is computed from the average of the quickest transit times. This yields the offset time between the server's time system and the client's time system. The server sends current time information to the client, and the computed path delay is added. The client can then compute correct time from the server and path delay information, and thereby select much sooner which satellites are correct to search.

    Thin client for a GPS receiver network
    6.
    发明公开
    Thin client for a GPS receiver network 有权
    客户端与GPS接收机网络功能有限

    公开(公告)号：EP1336863A3

    公开(公告)日：2004-01-14

    申请号：EP02028093.9

    申请日：2002-12-17

    申请人： eRide, Inc. ,  SEIKO EPSON CORPORATION

    发明人： McBurney, Paul W. ,  Rasmussen, Clark W. ,  Vaucher, Frederic ,  Victa, Kenneth U.

    IPC分类号： G01S5/14

    CPC分类号： G01S19/09

    摘要： A thin-client navigation-satellite receiver network collects GPS pseudorange measurements and communicates them from many independent clients on a computer network to a server. The server computes the respective navigation solutions and sends the results back to each client. A client manager at the server includes a client-request handler that interfaces with the network and collects the discrete requests from each of the clients. An assembler builds complete data sets from one to five seconds worth of data gathered by the client-request handler and spins each ready-to-go job to a bank of navigation servers. A session manager coordinates the inputs-and-results communication on the network and sends its outputs to a client responder.

    Thin client for a GPS receiver network
    7.
    发明公开
    Thin client for a GPS receiver network 有权
    客户端软件功能GPS-Empfänger-Netzwerk

    公开(公告)号：EP1336863A2

    公开(公告)日：2003-08-20

    申请号：EP02028093.9

    申请日：2002-12-17

    申请人： eRide, Inc. ,  SEIKO EPSON CORPORATION

    发明人： McBurney, Paul W. ,  Rasmussen, Clark W. ,  Vaucher, Frederic ,  Victa, Kenneth U.

    IPC分类号： G01S5/14

    CPC分类号： G01S19/09

    摘要： A thin-client navigation-satellite receiver network collects GPS pseudorange measurements and communicates them from many independent clients on a computer network to a server. The server computes the respective navigation solutions and sends the results back to each client. A client manager at the server includes a client-request handler that interfaces with the network and collects the discrete requests from each of the clients. An assembler builds complete data sets from one to five seconds worth of data gathered by the client-request handler and spins each ready-to-go job to a bank of navigation servers. A session manager coordinates the inputs-and-results communication on the network and sends its outputs to a client responder.

    摘要翻译： 瘦客户端导航卫星接收机网络收集GPS伪距测量，并将它们从计算机网络上的许多独立客户端传送到服务器。 服务器计算相应的导航解决方案，并将结果发送回每个客户端。 服务器上的客户端管理器包括与网络接口并从每个客户端收集离散请求的客户机请求处理程序。 汇编器构建由客户端请求处理程序收集的一到五秒数据的完整数据集，并将每个即用作业转到一组导航服务器。 会话管理器协调网络上的输入和结果通信，并将其输出发送给客户端应答器。

    Satellite navigation receiver and method
    8.
    发明公开
    Satellite navigation receiver and method 有权
    卫星导航系统接收机和方法

    公开(公告)号：EP1197761A3

    公开(公告)日：2003-03-12

    申请号：EP01124170.0

    申请日：2001-10-10

    申请人： eRide, Inc. ,  SEIKO EPSON CORPORATION

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

    IPC分类号： G01S5/14 ,  G01S1/04

    CPC分类号： G01S5/0045 ,  G01S5/0018 ,  G01S19/05 ,  G01S19/07 ,  G01S19/25 ,  G01S19/35

    摘要： A satellite-navigation system comprises an observer platform for collecting signal observations from orbiting navigation satellites. A server platform provides a simplified navigation-satellite constellation almanac, ephemeris, differential correction, and client services. A navigation platform passes information between the observer and server platforms and provides for autonomous position solution computations for a limited time after a periodic call for an aiding data from the server platform. A measurement platform included in the server platform makes static observations of a navigation-satellite constellation and that builds a database of measurement errors and satellite data messages. An aiding data with light-weight models is provided by the server platform to the observer platform to eliminate all data storage of almanac and ephemeris, and to permit only fixed-point integer arithmetic to be used to solve for user position at the navigation platform.