会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 13. 发明申请
    • SYSTEMS, METHODS, AND APPARATUS FOR FREQUENCY CONTROL
    • 用于频率控制的系统,方法和装置
    • WO2006122293A3
    • 2007-12-13
    • PCT/US2006018375
    • 2006-05-10
    • QUALCOMM INCSIMIC EMILIJA MPATRICK CHRISTOPHERCHALLA RAGHUROWITCH DOUGLAS N
    • SIMIC EMILIJA MPATRICK CHRISTOPHERCHALLA RAGHUROWITCH DOUGLAS N
    • H04B1/26G01S5/14G01S19/23
    • G01S19/235H04B1/26
    • A receiver according to one embodiment includes a frequency control unit configured to receive a stream of samples including a plurality of received instances of a transmitted signal. The frequency control unit is configured to output a first correction signal (e.g. indicating a rotation) that is based on more than one of the received instances and a second correction signal (e.g. to control an oscillator) that is also based on more than one of the received instances. In some embodiments, a controlled oscillator is used to receive and/or transmit another signal, such as a signal received from a GPS space vehicle. In other embodiments, the received instances are from a GPS signal. In further embodiments, a fixed-frequency oscillator is used, and the second correction signal is used to receive and/or transmit another signal, such as a GPS signal.
    • 根据一个实施例的接收机包括:频率控制单元,被配置为接收包括发射信号的多个接收的实例的样本流。 频率控制单元被配置为输出基于多于一个接收到的实例的第一校正信号(例如指示旋转)和还基于多个接收实例中的多于一个的第二校正信号(例如,以控制振荡器) 接收的实例。 在一些实施例中,受控振荡器用于接收和/或发送另一信号,例如从GPS空中交通工具接收的信号。 在其他实施例中,所接收的实例来自GPS信号。 在另外的实施例中,使用固定频率振荡器,并且第二校正信号用于接收和/或发送诸如GPS信号的另一信号。
    • 17. 发明申请
    • METHOD AND APPARATUS FOR MULTIPATH MITIGATION
    • 用于多路减速的方法和装置
    • WO2010065250A1
    • 2010-06-10
    • PCT/US2009/063979
    • 2009-11-11
    • QUALCOMM IncorporatedCHEN, Shiou-HungMARSHALL, Grant AlexanderSIMIC, Emilija M.ROWITCH, Douglas NealPON, Rayman Wai
    • CHEN, Shiou-HungMARSHALL, Grant AlexanderSIMIC, Emilija M.ROWITCH, Douglas NealPON, Rayman Wai
    • H04B1/707G01S1/00
    • H04B1/7113G01S19/22H04B2201/70715
    • An apparatus and method for short multipath mitigation. In one aspect the method comprises subtracting a first stronger path from a correlation function to obtain a first residual signal, wherein one component of the first residual signal is a weaker path; applying reconstruction on the first residual signal to obtain a first reconstructed weaker path; subtracting the first reconstructed weaker path from the correlation function to obtain a second residual signal; and applying reconstruction on the second residual signal to obtain a second stronger path. In one aspect, the apparatus includes an antenna for receiving a composite receive RF signal, a receiver front-end for converting the composite receive RF signal into a composite receive digital signal; and a processor for performing signal correlation on the composite receive digital signal to obtain a correlation function and for processing the correlation function to obtain a desired signal. In one aspect, the short multipath is identified by computing a Left Edge Height Ratio Indicator (LEHRI).
    • 一种用于短多径减轻的装置和方法。 在一个方面,该方法包括从相关函数中减去第一较强路径以获得第一残差信号,其中第一残差信号的一个分量是较弱的路径; 对第一残差信号应用重建以获得第一重建较弱路径; 从所述相关函数中减去所述第一重建较弱路径以获得第二残差信号; 以及对所述第二残差信号应用重建以获得第二较强路径。 一方面,该装置包括用于接收复合接收RF信号的天线,用于将复合接收RF信号转换成复合接收数字信号的接收机前端; 以及处理器,用于对复合接收数字信号执行信号相关,以获得相关函数,并用于处理相关函数以获得期望的信号。 在一个方面,通过计算左边缘高度比指示符(LEHRI)来识别短多径。