Method and apparatus for providing reference frequency aiding among peers operating in a direct communication mode
    1.
    发明申请
    Method and apparatus for providing reference frequency aiding among peers operating in a direct communication mode 失效
    用于在直接通信模式下操作的对等体之间提供参考频率的方法和装置

    公开(公告)号:US20070026792A1

    公开(公告)日:2007-02-01

    申请号:US11194010

    申请日:2005-07-29

    IPC分类号: H04B1/60 H04B17/02

    摘要: A mobile communication device (202) and peer mobile communication devices (204, 206) are capable of direct voice and data communication. The mobile communication device has a reference oscillator (104) which is used for generating operating frequencies, and is subject to frequency errors resulting from manufacturing tolerances, heat, and other error sources. The mobile communication device receives a frequency correction message (506) from a peer mobile communication device that has calibrated its reference oscillator. The frequency correction message contain offset information which is used by the mobile communication device to determine its offset (316) from a nominal frequency (302).

    摘要翻译: 移动通信设备(202)和对等移动通信设备(204,206)能够直接进行语音和数据通信。 移动通信设备具有用于产生工作频率的基准振荡器(104),并且受制造公差,热和其它误差源造成的频率误差的影响。 移动通信设备从校准其参考振荡器的对等移动通信设备接收频率校正消息(506)。 频率校正消息包含偏移信息,该偏移信息由移动通信设备用来确定其与标称频率(302)的偏移(316)。

    Method and apparatus for determining an approximate position of a satellite positioning receiver
    3.
    发明申请
    Method and apparatus for determining an approximate position of a satellite positioning receiver 审中-公开
    用于确定卫星定位接收机的近似位置的方法和装置

    公开(公告)号:US20070132639A1

    公开(公告)日:2007-06-14

    申请号:US11297909

    申请日:2005-12-09

    IPC分类号: G01S3/02 G01S5/14

    CPC分类号: G01S19/252 G01S5/14

    摘要: A mobile device (100) includes a satellite positioning receiver (102) for determining a precise location of the device (220). The first time the precise location is determined, the satellite positioning receiver is provided with location aiding information including an approximate location and a radius of uncertainty. The approximate location is determined by acquiring the location of a present base station (202), and the locations of one or more neighbor base stations (306), and calculating the spatial center of the base stations, and adjusting the spatial center according to received signal strengths of the base stations. A radius around the approximate location is then determined. The approximate location and radius are provided to the satellite positioning receiver.

    摘要翻译: 移动设备(100)包括用于确定设备(220)的精确位置的卫星定位接收器(102)。 第一次确定精确位置时,卫星定位接收器设置有包括近似位置和不确定性半径的位置辅助信息。 通过获取当前基站(202)的位置和一个或多个相邻基站(306)的位置,并计算基站的空间中心,并根据接收到的空间中心来调整该近似位置 基站的信号强度。 然后确定大约位置周围的半径。 大概的位置和半径被提供给卫星定位接收机。

    METHOD AND SYSTEM OF IMPROVING TIME TO FIRST FIX IN A SATELLITE POSITIONING SYSTEM
    4.
    发明申请
    METHOD AND SYSTEM OF IMPROVING TIME TO FIRST FIX IN A SATELLITE POSITIONING SYSTEM 审中-公开
    在卫星定位系统中将时间改进到第一个固定的方法和系统

    公开(公告)号:US20070262900A1

    公开(公告)日:2007-11-15

    申请号:US11382993

    申请日:2006-05-12

    IPC分类号: G01S5/14

    CPC分类号: G01S19/28 G01S19/53

    摘要: A satellite positioning system (SPS) antenna aiding device (100) includes an SPS receiver (102), an environmental sensor (106) to determine a heading value, a tilt value, or an acceleration value, and a processor (104). The processor can be programmed to determine (306) heading, determine (304) an estimated direction of peak antenna gain in relation to satellites in view, and prioritize (308) acquisition attempts of a portion of satellites in view based on the estimated direction of peak antenna gain and environmental data. The processor can perform (310) a split search with correlators split between searches for satellites with assumed peak gain using a shorter dwell time and longer dwell time searches for satellites with lower gain. The device can electronically present (312) an orientation guide to a user based on the estimated direction of peak antenna gain and in view of the heading of the SPS receiver.

    摘要翻译: 卫星定位系统(SPS)天线辅助装置(100)包括SPS接收器(102),用于确定航向值,倾斜值或加速度值的环境传感器(106)和处理器(104)。 可以对处理器进行编程以确定(306)航向,确定(304)相对于观察卫星的峰值天线增益的估计方向,并且基于估计的方向估计(308)对卫星的一部分的采集尝试 峰值天线增益和环境数据。 处理器可以使用具有较短驻留时间的具有假定的峰值增益的卫星的搜索之间分割的相关器执行(310)分割搜索,并且对具有较低增益的卫星进行更长的驻留时间搜索。 该装置可以基于所估计的峰值天线增益的方向并且考虑到SPS接收机的航向,向用户电子地呈现(312)定向指南。

    System and method for providing adjustments for a compass
    5.
    发明申请
    System and method for providing adjustments for a compass 审中-公开
    提供罗盘调整的系统和方法

    公开(公告)号:US20060122800A1

    公开(公告)日:2006-06-08

    申请号:US11005982

    申请日:2004-12-07

    IPC分类号: G01C17/38

    CPC分类号: G01C17/38

    摘要: The invention concerns a method (300) and system (100) for providing adjustments for a compass (126). The method can include the steps of receiving (312) geographical positional information from a communications network (110), generating (314) a declination value based on the geographical positional information and calibrating (330) a reading for the compass using the declination value. The receiving, generating and calibrating steps can be performed at a portable electronic device (114) containing the compass. As an example, the geographical positioning information can be based on at least one of latitudinal and longitudinal coordinates, an area code and a postal delivery code.

    摘要翻译: 本发明涉及一种用于提供罗盘(126)的调整的方法(300)和系统(100)。 该方法可以包括从通信网络(110)接收(312)地理位置信息的步骤,基于地理位置信息生成(314)偏角值,并使用偏差值校准(330)罗盘的读数。 可以在包含指南针的便携式电子设备(114)上执行接收,产生和校准步骤。 作为示例,地理定位信息可以基于纬度和纵坐标,区域代码和邮政递送代码中的至少一个。