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    • 5. 发明授权
    • Cellular telephone using pseudolites for determining location
    • 蜂窝电话使用伪卫星确定位置
    • US06564064B1
    • 2003-05-13
    • US09452900
    • 1999-12-01
    • Ann CiganerJames M. Janky
    • Ann CiganerJames M. Janky
    • H04Q720
    • H04W64/00G01S5/0027G01S19/11G01S19/256G01S19/258G01S19/37G01S19/46H04W52/0216H04W52/0229H04W74/08H04W84/06H04W88/02Y02D70/164Y02D70/168
    • A cellular telephone having a global positioning system (GPS) receiver using a blended combination of GPS signals from GPS satellites and GPS pseudolites for determining a location. The cellular telephone includes a cellphone transceiver and a GPS receiver. The cellular transceiver receives wireless downlink cellphone signals from the cell site transceiver and transmits wireless uplink cellphone signals to the cell site transceiver. The cell site transceiver passes voice and data from the downlink and uplink cellphone signals within a local area into the worldwide network of telephone services. The GPS receiver receives satellite GPS signals from GPS satellites and pseudolite GPS signals from GPS pseudolites. The GPS pseudolites augment the GPS satellites for the local area by broadcasting pseudolite GPS signals having location-determination information with a format that is similar to the format in the satellite GPS signals. The GPS receiver uses either the satellite GPS signals, the pseudolite GPS signals, or a blended combination of the satellite and pseudolite GPS signals for determining its location. Then, the cellphone transceiver reports the location to the cell site transceiver in the uplink cellphone signal. The cell site transceiver transmits a downlink cellphone signal having acquisition aiding information optionally including GPS-based time; ephemeris orbital parameters for GPS satellites; and pseudorandom (PRN) codes, locations, and signal characteristics used by GPS pseudolites in the local vicinity. The GPS receiver in the cellular telephone uses the acquisition aiding information for speeding the time to the first location fix.
    • 一种具有使用来自GPS卫星的GPS信号和用于确定位置的GPS伪卫星的混合组合的全球定位系统(GPS)接收机的蜂窝电话。 蜂窝电话包括蜂窝电话收发机和GPS接收机。 蜂窝收发器从小区站收发器接收无线下行链路蜂窝电话信号,并将无线上行蜂窝电话信号发送到小区站点收发信机。 小区站点收发器将语音和数据从局域内的下行链路和上行蜂窝电话信号传送到全球电话业务网络。 GPS接收机接收来自GPS卫星的卫星GPS信号和GPS伪卫星的伪卫星GPS信号。 GPS伪卫星通过以具有与卫星GPS信号中的格式相似的格式的广播具有位置确定信息的伪卫星GPS信号来增加局部区域的GPS卫星。 GPS接收机使用卫星GPS信号,伪卫星GPS信号或卫星和伪卫星GPS信号的混合组合来确定其位置。 然后,手机收发器在上行手机信号中向小区站点收发器报告位置。 小区站点收发器发送具有可选地包括基于GPS的时间的获取辅助信息的下行链路蜂窝电话信号; GPS卫星的星历轨道参数; 以及当地附近的GPS伪卫星使用的伪随机(PRN)码,位置和信号特征。 蜂窝电话中的GPS接收机使用获取辅助信息来加速到第一定位的时间。
    • 7. 发明授权
    • Vehicle location system
    • 车辆定位系统
    • US5777580A
    • 1998-07-07
    • US396977
    • 1995-03-01
    • James M. JankyDavid G. Bird
    • James M. JankyDavid G. Bird
    • G01S5/00G01S5/14G01S13/87G01S19/17G01S19/34G01S19/35G01S3/02
    • G01S1/045G01S13/825G01S13/878G01S19/17G01S5/0009G01S2205/002G01S2205/008
    • Method and apparatus for determining vehicle present location using a location determination system (LDS), such as GPS, GLONASS, Loran or an inertial navigation system, that receives LDS signals from two or more sources. An LDS signal antenna and receiver/processor, an interrogation signal (IS) receiver means and IS responder means are electrically connected and carried on the vehicle. When a vehicle trigger event occurs, a specified vehicle IS is broadcast and is received by the IS receiver means. The IS receiver means causes the LDS receiver/processor to obtain vehicle present location information and to provide such information for the IS responder means, for transmission to an IS contact receiver (selected based upon vehicle present location). The IS receiver means and IS responder means are independently selected to be a cellular phone receiver, a paging signal receiver, a WAN/LAN workstation, or an Earth-satellite-Earth radiowave link, such as ORBCOMM.SM.. Optionally, the LDS receiver/processor is kept in a "sleeper" mode, to conserve power until the IS receiver receives and responds to the specified IS, or is periodically activated to update the LDS antenna present location. Presence of the LDS equipment, IS receiver means and/or IS responder means are concealed on the vehicle. In another embodiment, a trigger event sensor is positioned on the vehicle and the responder means is caused to transmit to the vehicle present location information when a vehicle trigger event occurs, such as unauthorized movement of or entry into the vehicle, or collision of the vehicle.
    • 使用诸如GPS,GLONASS,Loran或惯性导航系统的位置确定系统(LDS)来确定车辆当前位置的方法和装置,其接收来自两个或更多个源的LDS信号。 LDS信号天线和接收器/处理器,询问信号(IS)接收器装置和IS应答器装置在车辆上电连接并携带。 当车辆触发事件发生时,指定的车辆IS被广播并被IS接收机装置接收。 IS接收机装置使得LDS接收器/处理器获得车辆当前位置信息,并为IS响应器装置提供这样的信息,以便传输到IS接触式接收机(基于车辆当前位置选择)。 IS接收机装置和IS应答器装置被独立地选择为蜂窝电话接收机,寻呼信号接收机,WAN / LAN工作站或地球 - 卫星地球无线电波链路,例如ORBCOMM SM。 可选地,LDS接收机/处理器保持在“睡眠”模式,以节省功率,直到IS接收机接收并响应指定的IS,或者周期性地激活以更新LDS天线存在位置。 LDS设备,IS接收装置和/或IS应答器装置的存在被隐藏在车辆上。 在另一个实施例中,触发事件传感器被定位在车辆上,并且当发生车辆触发事件时,例如车辆的未经授权的移动或进入车辆或车辆的碰撞,使响应器装置向车辆发送当前位置信息 。