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    • 52. 发明授权
    • Method and apparatus for reducing code phase search space
    • 减少码相搜索空间的方法和装置
    • US07369599B2
    • 2008-05-06
    • US09741631
    • 2000-12-18
    • Christopher Patrick
    • Christopher Patrick
    • H04B1/00
    • G01S19/256G01S19/05
    • A GPS communication system including a server and a client, each including a GPS receiver, for reducing the code phase search space of the GPS receiver of the client. The communication system includes a transmitter for transmitting timing information from the server to the client to help the client locate a first satellite, and a receiver for using timing differences between the satellites to synchronize and locate other satellites. The code phase search space is reduced by reducing the number of phase hypotheses that must be calculated to establish communication between the server and the client.
    • 包括服务器和客户端的GPS通信系统,每个包括GPS接收机,用于减少客户机的GPS接收机的码相位搜索空间。 通信系统包括用于从服务器向客户端发送定时信息以帮助客户定位第一卫星的发射机,以及用于使卫星之间的定时差同步和定位其他卫星的接收机。 通过减少必须计算的相位假设数来减少服务器和客户端之间的通信,从而减少代码相位搜索空间。
    • 53. 发明申请
    • METHOD AND APPARATUS FOR COMMUNICATING WITH A WIRELESS NETWORK USING A SINGLE ADDRESS FOR MULTIPLE PROCESSORS
    • 使用多处理器的单个地址与无线网络进行通信的方法和装置
    • US20070206553A1
    • 2007-09-06
    • US11617501
    • 2006-12-28
    • Sanjeev KhushuChristopher Patrick
    • Sanjeev KhushuChristopher Patrick
    • H04Q7/24
    • H04L61/2046H04L29/12264H04L69/16H04L69/161H04L69/32
    • A communication system that allows multiple data applications to work simultaneously within a distributed execution environment in which only one IP address is assigned to the mobile system by an external wireless network. The mobile system comprises a wireless communication system with a first processing device (such as a cell phone or a network card) and a second device with another processor (such as a laptop computer or a personal digital assistant). The single IP address is assigned to the second processor, and all incoming external communications are stored in the second processor. In some embodiments the first processing device includes a filter; in other embodiments the second processing device includes a proxy for each processor. Additional processors can be connected to the mobile system by adding an additional filter or additional proxy.
    • 允许多个数据应用在分布式执行环境中同时工作的通信系统,其中仅一个IP地址由外部无线网络分配给移动系统。 移动系统包括具有第一处理设备(诸如蜂窝电话或网卡)的无线通信系统和具有另一个处理器(例如膝上型计算机或个人数字助理)的第二设备。 单个IP地址被分配给第二处理器,并且所有传入的外部通信都存储在第二处理器中。 在一些实施例中,第一处理装置包括过滤器; 在其他实施例中,第二处理设备包括用于每个处理器的代理。 可以通过添加额外的过滤器或附加代理将附加处理器连接到移动系统。
    • 54. 发明授权
    • Update of base station identifiers based on overhead visit
    • 基于开销访问更新基站标识符
    • US07136659B2
    • 2006-11-14
    • US10392020
    • 2003-03-18
    • Sanjeev KhushuBaaziz AchourChristopher PatrickCarol Yetter
    • Sanjeev KhushuBaaziz AchourChristopher PatrickCarol Yetter
    • H04Q7/20
    • H04W4/02H04W64/00H04W76/10
    • A visit to an overhead channel to obtain base station identifiers is made if it is necessary to do so. Base station identifiers are indicative of an approximate location of a terminal. The determination to update the base station identifiers may be made by monitoring one or more base stations in the terminal's active set. In another aspect, the terminal can originate a new data call immediately after the necessary base station identifiers have been obtained from the overhead channel, without having to wait for the expiration of a timer (e.g., the dormant timer). Moreover, by maintaining the data session when terminating the data call for the overhead visit, data communication may be more quickly resumed, for a new data call originated after the overhead visit, using the same configured protocols.
    • 如果有必要,则访问开销信道以获得基站标识符。 基站标识符表示终端的大致位置。 可以通过监视终端的活动集中的一个或多个基站来进行更新基站标识符的确定。 在另一方面,终端可以在已经从开销信道获得必要的基站标识符之后立即产生新的数据呼叫,而不必等待定时器(例如,休眠定时器)的到期。 此外,通过在终止对开销访问的数据呼叫时维护数据会话,可以使用相同的配置协议,对于在开销访问之后发起的新数据呼叫,可以更快地恢复数据通信。
    • 56. 发明授权
    • Data messaging efficiency for an assisted wireless position determination system
    • 辅助无线位置确定系统的数据通讯效率
    • US06861980B1
    • 2005-03-01
    • US10854981
    • 2004-05-26
    • Douglas N. RowitchChristopher Patrick
    • Douglas N. RowitchChristopher Patrick
    • G01S1/00G01S19/05G01S19/06G01S19/25G01S19/48H04W64/00H04B7/185
    • H04W64/00G01S19/05G01S19/25
    • An assisted wireless position determination system includes a plurality of base stations and a plurality of wireless devices, such as mobile telephones and personal digital assistants, adapted to communicate with the base stations. The wireless position determination system also includes a position determination system for determining the geographic position of the wireless devices. The position determination system includes a position determination entity (PDE) that is connected to the base stations and serves as a processing server for computing the position of the wireless devices. The system and method reduces or eliminates redundant and superfluous data. In addition, the system and method ensure that the wireless device is not loaded with additional capacity, and that the wireless device is provided with precise location information. The embodiments of the system and method of the invention are compliant with the TIA/EIA IS-801 standard or other standards.
    • 辅助无线位置确定系统包括适于与基站通信的多个基站和多个无线设备,诸如移动电话和个人数字助理。 无线位置确定系统还包括用于确定无线设备的地理位置的位置确定系统。 位置确定系统包括连接到基站并用作用于计算无线设备的位置的处理服务器的位置确定实体(PDE)。 该系统和方法减少或消除了冗余和多余的数据。 另外,系统和方法确保无线设备没有加载额外的容量,并且无线设备被提供精确的位置信息。 本发明的系统和方法的实施例符合TIA / EIA IS-801标准或其他标准。
    • 57. 发明授权
    • Method and apparatus for compensating local oscillator frequency error through environmental control
    • 通过环境控制补偿本机振荡器频率误差的方法和装置
    • US06522871B1
    • 2003-02-18
    • US09567801
    • 2000-05-09
    • Christopher PatrickSaed G. Younis
    • Christopher PatrickSaed G. Younis
    • H04B106
    • H03J7/04
    • The frequency error of an oscillator is minimized by characterizing the operating environment of the oscillator. An electronic device monitors parameters that are determined to have an effect on the frequency accuracy of the internal frequency source. Temperature is one parameter known to have an effect on the frequency of the internal frequency source and a primary contributor to device temperature is the RF Power Amplifier (PA). The electronic device collects and stores the activity level of the PA. The effective PA duty cycle over a predetermined period of time is calculated. The LO operating environment is stabilized by operating the PA at the calculated duty cycle when the LO is required to operate in a high stability mode.
    • 通过表征振荡器的工作环境,使振荡器的频率误差最小化。 电子设备监视被确定为对内部频率源的频率精度产生影响的参数。 温度是已知的对内部频率源的频率有影响的参数之一,器件温度的主要贡献者是RF功率放大器(PA)。 电子设备收集和存储PA的活动级别。 计算预定时间段内的有效PA占空比。 当LO需要在高稳定性模式下工作时,通过以计算的占空比操作PA来稳定LO操作环境。