Method and apparatus for locating a transceiver
    1.
    发明授权
    Method and apparatus for locating a transceiver 有权
    用于定位收发器的方法和装置

    公开(公告)号:US08483703B2

    公开(公告)日:2013-07-09

    申请号:US11273420

    申请日:2005-11-14

    IPC分类号: H04W24/00

    CPC分类号: H04W64/00

    摘要: A radio system for locating a radio transceiver configured to exchange voice or data with a plurality of base stations on a narrowband channel is described. The system includes the radio transceiver that exchanges voice or data on the narrowband channel with a base station of the plurality of base stations and also to periodically transmit a chirp signal to the plurality of base stations. The radio system also includes the plurality of base stations each with a matched filter configured to receive the periodically transmitted chirp signal and to triangulate a location of the radio transceiver using the received chirp signal.

    摘要翻译: 描述用于定位被配置为在窄带信道上与多个基站交换语音或数据的无线电收发机的无线电系统。 该系统包括:无线电收发器,其与多个基站中的基站在窄带信道上交换语音或数据,并且还周期性地向多个基站发送线性调频信号。 无线电系统还包括多个基站,每个基站具有配置成接收周期性发送的线性调频信号的匹配滤波器,并且使用所接收的线性调频信号对无线电收发信机的位置进行三角测量。

    Method for generating a location signal
    2.
    发明授权
    Method for generating a location signal 有权
    用于产生位置信号的方法

    公开(公告)号:US08063823B2

    公开(公告)日:2011-11-22

    申请号:US12335091

    申请日:2008-12-15

    IPC分类号: G01S1/08

    CPC分类号: G01S13/825

    摘要: A communication device uses its FGU to generate a location signal that can be used by a reference device to calibrate the communication device and to determine the distance of the communication device from the reference device. The communication device: receives, from a reference device, at least one location signal control parameter that defines pulse shape characteristics for a location signal; configures its FGU based on the at least one location signal control parameter; generates a linear first part of a phase-incoherent location signal having the defined pulse shape characteristics by progressively sweeping an output of the FGU over a range of frequencies from a first frequency to a second frequency within a first time period; and transmits at least one iteration of the first part of the location signal.

    摘要翻译: 通信设备使用其FGU来产生可由参考设备使用的位置信号来校准通信设备并且确定通信设备与参考设备的距离。 通信设备:从参考设备接收定义用于位置信号的脉冲形状特性的至少一个位置信号控制参数; 基于所述至少一个位置信号控制参数来配置其FGU; 通过在第一时间段内从第一频率到第二频率的频率范围逐渐扫描FGU的输出来产生具有所定义的脉冲形状特性的相位非相干位置信号的线性第一部分; 并且发送位置信号的第一部分的至少一次迭代。

    Method and device for generating a location signal
    3.
    发明授权
    Method and device for generating a location signal 有权
    用于产生位置信号的方法和装置

    公开(公告)号:US08169369B2

    公开(公告)日:2012-05-01

    申请号:US12335156

    申请日:2008-12-15

    IPC分类号: G01S1/08 G01S3/02

    CPC分类号: G01S11/02

    摘要: A frequency generation unit (FGU) in a communication device includes a voltage controlled oscillator (VCO), an adjustable filter having a capacitive element for wideband operation, a current source with variable gain, and chirp generation control circuitry (CGC) that is used to generate location signals. The FGU receives, from a reference device, at least one location signal control parameter that defines linear frequency slope characteristics for a location signal. The CGC configures, based on the at least one location signal control parameter, the gain and a polarity of the current source to generate a first current during a first time period for charging the capacitive element to generate a control signal that is coupled to the VCO to generate a first part of the location signal having the defined linear frequency slope characteristics, wherein the first part of the location signal is transmitted using a transceiver of the communication device.

    摘要翻译: 通信装置中的频率产生单元(FGU)包括压控振荡器(VCO),具有用于宽带操作的电容元件的可调整滤波器,具有可变增益的电流源和用于发送控制的线性调频电路(CGC) 生成位置信号。 FGU从参考设备接收至少一个位置信号控制参数,其定义位置信号的线性频率斜率特性。 所述CGC基于所述至少一个位置信号控制参数,配置所述电流源的增益和极性,以在第一时间段期间产生第一电流,以对所述电容元件充电以产生耦合到所述VCO的控制信号 以产生具有所定义的线性频率斜率特性的位置信号的第一部分,其中使用通信设备的收发器发送位置信号的第一部分。

    Method and apparatus for determining location of a communication device
    4.
    发明授权
    Method and apparatus for determining location of a communication device 有权
    用于确定通信设备的位置的方法和装置

    公开(公告)号:US08131215B2

    公开(公告)日:2012-03-06

    申请号:US12335031

    申请日:2008-12-15

    IPC分类号: H04B7/00

    CPC分类号: H04W64/00 G01S13/767

    摘要: A reference device determines its distance from a communication device by first using a training process to determine a calibrated time delay for the communication device when the communication device is at a known distance from the reference device. The calibrated time delay is a steady state internal processing delay for the communication device. Subsequently, when the reference device is at an unknown distance from the communication device, the reference device determines the unknown distance using the previously determined calibrated time delay along with a measured signal travel time at the unknown distance.

    摘要翻译: 参考设备通过首先使用训练过程来确定其与通信设备的距离,以便当通信设备距离参考设备已知距离时,确定通信设备的校准时间延迟。 校准的时间延迟是通信设备的稳态内部处理延迟。 随后,当参考设备距离通信设备距离未知距离时,参考设备使用先前确定的校准时间延迟以及在未知距离处的测量信号行进时间来确定未知距离。

    System and method for reducing transient responses in a phase lock loop with variable oscillator gain
    7.
    发明授权
    System and method for reducing transient responses in a phase lock loop with variable oscillator gain 有权
    用于减少具有可变振荡器增益的锁相环中瞬态响应的系统和方法

    公开(公告)号:US07504893B2

    公开(公告)日:2009-03-17

    申请号:US11564965

    申请日:2006-11-30

    IPC分类号: H03L7/089

    摘要: A system and method for reducing the transient responses in a phase lock loop (PLL) (100) with variable oscillator gain is disclosed. The system includes a charge pump (104) having an adapt mode and a normal mode of operation. The charge pump (104) also includes controlled trickle currents from current sources (208), (210) which are applied to the output (105), (107) of charge pump (104) to minimize the transient responses of the PLL (100). A programmable delay is provided in the charge pump (104) and is configured using a controller (122) based on the variable oscillator gain for the PLL (100). The configured programmable delay is used in the adapt mode of operation for adding a trickle current from the current source (210) to the adapt mode output (107).

    摘要翻译: 公开了一种用于减少具有可变振荡器增益的锁相环(PLL)(100)中的瞬态响应的系统和方法。 该系统包括具有适应模式和正常操作模式的电荷泵(104)。 电荷泵(104)还包括来自电流源(208),(210)的控制的涓流电流,其被施加到电荷泵(104)的输出(105),(107),以最小化PLL(100)的瞬态响应 )。 在电荷泵(104)中提供可编程延迟,并且使用基于PLL(100)的可变振荡器增益的控制器(122)来配置可编程延迟。 配置的可编程延迟用于适应操作模式,用于将来自当前源(210)的涓流电流添加到适配模式输出(107)。

    Radio architecture with dual frequency source selection
    9.
    发明授权
    Radio architecture with dual frequency source selection 失效
    无线电架构采用双频源选择

    公开(公告)号:US5465409A

    公开(公告)日:1995-11-07

    申请号:US206704

    申请日:1994-03-07

    CPC分类号: H04B1/005 H04B1/406

    摘要: A radio having two architectural platforms integrated in one integrated circuit (IC). A synthesizer controller (312) selects between an offset local oscillator (LO) synthesizer (318) and a second LO synthesizer (316) to provide a common architecture for either an Frequency Division Duplex (FDD) or Time Division Duplex (TDD) system design while providing isolation between the two frequency sources. An offset LO signal (319) is translated to an isolated LO signal 310 and combined with a main LO signal (322) to provide the FDD platform. A second LO signal (314) is translated into the isolated LO signal 310 and combined with the main LO signal (322) to provide the TDD platform. The second LO synthesizer signal (314) is common to both systems in the receive mode.

    摘要翻译: 具有集成在一个集成电路(IC)中的两个架构平台的无线电。 合成器控制器(312)在偏移本地振荡器(LO)合成器(318)和第二LO合成器(316)之间进行选择,以提供用于频分双工(FDD)或时分双工(TDD)系统设计的公共架构 同时提供两个频率源之间的隔离。 偏移LO信号(319)被转换为隔离LO信号310并与主LO信号(322)组合以提供FDD平台。 第二LO信号(314)被转换为隔离的LO信号310并与主LO信号(322)组合以提供TDD平台。 第二LO合成器信号(314)在接收模式下对于两个系统是公共的。

    Control and antenna mount assembly
    10.
    发明授权
    Control and antenna mount assembly 失效
    控制和天线安装组件

    公开(公告)号:US5276454A

    公开(公告)日:1994-01-04

    申请号:US951026

    申请日:1992-09-24

    IPC分类号: H01Q1/22 H01Q1/24

    CPC分类号: H01Q1/242 H01Q1/22

    摘要: A control and antenna mount assembly (100) includes an antenna mount portion (130) having a top portion (132) for mating to an antenna (142). Assembly (100) also includes an insert member (122), control knob (110) having selector contact (118) and a retainer ring (120) all connected to antenna mount (130), together forming a rotary switch, concentric to antenna mount (130).

    摘要翻译: 控制和天线安装组件(100)包括具有用于与天线(142)配合的顶部(132)的天线安装部分(130)。 组件(100)还包括插入构件(122),具有选择器触点(118)的控制旋钮(110)和全部连接到天线安装件(130)的保持环(120),一起形成与天线安装件同心的旋转开关 (130)。