TDOA/GPS hybrid wireless location system
    7.
    发明授权
    TDOA/GPS hybrid wireless location system 有权
    TDOA / GPS混合无线定位系统

    公开(公告)号:US07440762B2

    公开(公告)日:2008-10-21

    申请号:US10748367

    申请日:2003-12-30

    IPC分类号: H04Q7/20

    摘要: A method and system for enhancing the accuracy and robustness of locations determined for a mobile wireless transceiver in a cellular telephone communications system integrates location-related information both from an assisted GPS device embedded in the mobile unit and from infrastructure-based facilities that extract signal characteristic data at networked base stations. Available supporting collateral information may be additionally evaluated in the location determinations to provide location estimates of enhanced robustness and accuracy.

    摘要翻译: 用于增强在蜂窝电话通信系统中为移动无线收发器确定的位置的准确性和鲁棒性的方法和系统将来自嵌入在移动单元中的辅助GPS设备以及从基于设备的设备提取信号特征的位置相关信息 联网基站的数据。 可以在位置确定中另外评估可用的支持附属信息,以提供增强的鲁棒性和准确性的位置估计。

    Portable radiotelephone with multiple function power key
    8.
    发明授权
    Portable radiotelephone with multiple function power key 失效
    带多功能电源键的便携式无线电话机

    公开(公告)号:US06453169B1

    公开(公告)日:2002-09-17

    申请号:US08808623

    申请日:1997-02-28

    申请人: John E. Maloney

    发明人: John E. Maloney

    IPC分类号: H04B138

    CPC分类号: H04M1/7258

    摘要: A communication device including a power key located on an outer surface of the housing which may provide multiple functions, but is resistant to initiation of undesired handset functions. Control circuitry within the communication device may be configured to ignore any actuation of the power key with a duration less than a determined time period. The control circuitry performs a first function if the power key is depressed for a first duration, and performs a second function when the power key is depressed for a second duration. For example, depression of the power key for a short period of time may silence and incoming call alert, whereas depression of the power key for a longer period of time will turn the communication device on or off.

    摘要翻译: 一种通信设备,其包括位于外壳的外表面上的电源键,其可以提供多种功能,但是抵抗不期望的手机功能的启动。 通信设备内的控制电路可以被配置为忽略具有小于确定的时间段的持续时间的电力钥匙的任何致动。 如果在第一持续时间内按下电源键,则控制电路执行第一功能,并且在电源键被按下第二持续时间时执行第二功能。 例如,短时间内按下电源键可能会使呼叫提醒静音,而在较长时间内按下电源键将打开或关闭通信设备。

    Single station communications localization system
    9.
    发明授权
    Single station communications localization system 有权
    单站通信定位系统

    公开(公告)号:US06288675B1

    公开(公告)日:2001-09-11

    申请号:US09511628

    申请日:2000-02-18

    申请人: John E. Maloney

    发明人: John E. Maloney

    IPC分类号: G01S302

    摘要: The present invention combines the measured characteristics of a radio signal in a communications environment with collateral information to produce an accurate and economical way to locate a mobile transmitter station, such as a mobile telephone, in a cellular telephone network.

    摘要翻译: 本发明将通信环境中的无线电信号的测量特性与抵押信息相结合,以产生用于将诸如移动电话的移动发射机站定位在蜂窝电话网络中的准确和经济的方式。

    Reverse link, transmit power correction and limitation in a
radiotelephone system
    10.
    发明授权
    Reverse link, transmit power correction and limitation in a radiotelephone system 失效
    无线电话系统中的反向链路,发射功率校正和限制

    公开(公告)号:US5452473A

    公开(公告)日:1995-09-19

    申请号:US203151

    申请日:1994-02-28

    CPC分类号: H04W52/06 H04W52/36 H04W52/52

    摘要: The process and apparatus of the present invention limits the output power of a radiotelephone, operating in a cellular system in the preferred embodiment. This ensures the transmitted sidebands and synthesizer phase noise remains within a certain specification. This is accomplished by power detection and a correction accumulator that together generate a gain control signal by limiting the gain adjustment to a maximum value, even when the cell site communicating with the radiotelephone is sending power turn-up commands to the radiotelephone. This process includes dynamically correcting the output level of the transmitter due to gain variations in the transmitter stages or gain control elements.

    摘要翻译: 本发明的方法和装置限制在优选实施例中在蜂窝系统中操作的无线电话机的输出功率。 这确保传输的边带和合成器相位噪声保持在一定的规格内。 这通过功率检测和校正累加器来实现,即使当与无线电话机通信的小区站点向无线电话机发送功率开启命令时,通过将增益调整限制为最大值来一起生成增益控制信号。 该过程包括由于发射机级或增益控制元件中的增益变化而动态校正发射机的输出电平。