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
    • 72. 发明授权
    • Correction data signal diplexing onto the AM band
    • 校正数据信号双工到AM频段
    • US06803879B1
    • 2004-10-12
    • US09456896
    • 1999-12-07
    • David Young
    • David Young
    • H04B7185
    • G01S19/07
    • A method and apparatus for generating signals that can be used for accurately determining position and a method and apparatus for accurately determining position. A radio station modification unit is disclosed that can be incorporated into an existing radio transmission facility. The radio station modification unit generates a correction data signal that can be used by position determining systems for accurately determining position. In one embodiment, the radio station modification unit generates correction data that is encrypted. A position determination system decrypts the correction data upon receiving an activation instruction and uses the correction data to accurately determine position.
    • 用于产生可用于精确确定位置的信号的方法和装置以及用于准确地确定位置的方法和装置。 公开了可并入现有无线电传输设施的无线电台修改单元。 无线电站修改单元产生可由位置确定系统使用以校正位置的校正数据信号。 在一个实施例中,无线电台修改单元产生加密的校正数据。 位置确定系统在接收到激活指令时解密校正数据,并使用校正数据来准确地确定位置。