Ultra wide band transmitter
    11.
    发明授权
    Ultra wide band transmitter 失效
    超宽带发射机

    公开(公告)号:US06952456B1

    公开(公告)日:2005-10-04

    申请号:US09599969

    申请日:2000-06-21

    摘要: A transmitter system is provided. In one embodiment, the transmitter system includes a data modulation unit, which generates a stream of data that is synchronized with a master clock. The transmitter system additionally includes a transmitter that transmits the stream of synchronized data by way of an attached antenna. In another embodiment the transmitter system includes a Medium Access Control (MAC) layer that includes a clock synchronization device, a frequency divider, a slot allocation unit, and a multiplexer/demultiplexer. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.

    摘要翻译: 提供发射机系统。 在一个实施例中,发射机系统包括数据调制单元,其生成与主时钟同步的数据流。 发射机系统还包括通过附接天线发送同步数据流的发射机。 在另一个实施例中,发射机系统包括媒体接入控制(MAC)层,其包括时钟同步装置,分频器,时隙分配单元和复用器/解复用器。 本摘要仅用于遵守允许读者快速确定本文所包含的披露的主题的抽象要求规则。

    Wireless TDMA system and method for network communications
    12.
    发明授权
    Wireless TDMA system and method for network communications 有权
    无线TDMA系统和网络通信方法

    公开(公告)号:US06970448B1

    公开(公告)日:2005-11-29

    申请号:US09603310

    申请日:2000-06-21

    IPC分类号: H04L12/56 H04B7/212

    摘要: The present invention describes a network communication system which includes a first slave transceiver configured to communicate a plurality of TDMA data packets at different data rates to a second slave transceiver. The second slave transceiver is also configured to communicate a plurality of TDMA data packets at different data rates to the first slave transceiver. A master transceiver manages data communications between the first slave transceiver and the second slave transceiver. Each transceiver includes a data modulation unit, a transmitter, an antenna, and a receiver. The data modulation unit is configured to generate a plurality of signals having variable pulse repetition frequencies and different modulation techniques. The transmitter is coupled to the data modulation unit and the transmitter is configured to generate a pulse stream according to the data modulation unit. The transmitting antenna is coupled to the transmitter and the transmitting antenna is configured to transmit a plurality of ultra wide band base band signals. The receiver is configured to detect and demodulate said ultra wide band base band signals operating at variable pulse repetition frequencies and having different modulation methods.

    摘要翻译: 本发明描述了一种网络通信系统,其包括配置成以不同数据速率将多个TDMA数据分组传送到第二从机收发器的第一从收发器。 第二从属收发器还被配置为以不同的数据速率将多个TDMA数据分组传送到第一从机收发器。 主收发器管理第一从收发器和第二从收发器之间的数据通信。 每个收发器包括数据调制单元,发送器,天线和接收器。 数据调制单元被配置为产生具有可变脉冲重复频率和不同调制技术的多个信号。 发送器耦合到数据调制单元,发送器被配置为根据数据调制单元生成脉冲流。 发射天线耦合到发射机,并且发送天线被配置为发送多个超宽带基带信号。 接收机被配置为检测和解调以可变脉冲重复频率工作并具有不同调制方式的所述超宽带基带信号。

    Ultra wide band communication systems and methods
    13.
    发明申请
    Ultra wide band communication systems and methods 审中-公开
    超宽带通信系统和方法

    公开(公告)号:US20050237966A1

    公开(公告)日:2005-10-27

    申请号:US11156056

    申请日:2005-06-16

    摘要: Ultra wide band communication systems and methods are provided. In one embodiment, an ultra wide band communication system includes an ultra wide band Medium Access Control (MAC) communication method, the communication method comprising the steps of providing a time division multiple access frame comprising a plurality of slots, placing at least one ultra wide band pulse in at least one slot; and varying an ultra wide band pulse repetition frequency between different slots. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.

    摘要翻译: 提供超宽带通信系统和方法。 在一个实施例中,超宽带通信系统包括超宽带媒体接入控制(MAC)通信方法,所述通信方法包括以下步骤:提供包括多个时隙的时分多址帧,至少设置一个超宽 在至少一个时隙中的频带脉冲; 并改变不同时隙之间的超宽带脉冲重复频率。 本摘要仅用于遵守允许读者快速确定本文所包含的披露的主题的抽象要求规则。 本摘要以明确的理解提交,不会用于解释或限制权利要求的范围或含义。

    Pulse shaping for a baseband wireless transmitter
    14.
    发明授权
    Pulse shaping for a baseband wireless transmitter 失效
    基带无线发射机的脉冲整形

    公开(公告)号:US06658053B1

    公开(公告)日:2003-12-02

    申请号:US09408414

    申请日:1999-09-29

    IPC分类号: H04B346

    CPC分类号: H03K7/10 H03K12/00 H04B1/7174

    摘要: A method and apparatus for generating a baseband signal from a data pulse to approximate a filter transfer function is disclosed. The method comprises generating the data pulse, generating a plurality of delayed short pulses from the data pulse, and generating an output baseband signal from the of delayed pulses. The apparatus for generating a baseband signal from a data pulse to approximate a filter transfer function, comprises an input node coupled to the data pulse, an output node, a pull-up circuit coupled to said output node which generates positive going excursions of the baseband signal, and a pull-down circuit coupled to said output node which generates negative going excursions of the baseband signal.

    摘要翻译: 公开了一种用于从数据脉冲产生基带信号以近似滤波器传递函数的方法和装置。 该方法包括产生数据脉冲,从数据脉冲产生多个延迟的短脉冲,以及从延迟脉冲产生输出基带信号。 用于从数据脉冲生成基带信号以近似滤波器传递函数的装置包括耦合到数据脉冲的输入节点,输出节点,耦合到所述输出节点的上拉电路,其产生基带的正向偏移 信号和耦合到所述输出节点的下拉电路,其产生基带信号的负向偏移。

    Ultra wide band base band receiver
    15.
    发明授权
    Ultra wide band base band receiver 失效
    超宽带基带接收机

    公开(公告)号:US07088795B1

    公开(公告)日:2006-08-08

    申请号:US09599968

    申请日:2000-06-21

    IPC分类号: H04L7/00

    摘要: The present invention is a receiver having a radio frequency (RF) front end, a pulse detector operatively coupled to the RF front end, and a data recovery unit operatively coupled to the pulse detector. The data recovery unit is configured to receive spread spectrum RF signals having different pulse repetition frequencies and using different modulation techniques. The receiver may operate in conjunction with a transmitter as a transceiver. The receiver may also operate in a networked environment in which a network of transceiver node devices comprise a first slave transceiver having a receiver configured to receive spread spectrum signals, and a second slave transceiver configured to communicate with the first slave transceiver. Additionally, a master transceiver is in communication with the first slave transceiver and the second slave transceiver. The master transceiver is configured to manage data transmissions and synchronization between the first slave transceiver and the second slave transceiver.

    摘要翻译: 本发明是具有射频(RF)前端,可操作地耦合到RF前端的脉冲检测器和可操作地耦合到脉冲检测器的数据恢复单元的接收器。 数据恢复单元被配置为接收具有不同脉冲重复频率并使用不同调制技术的扩频RF信号。 接收机可以与发射机一起作为收发机操作。 接收机还可以在网络环境中操作,其中收发器节点设备的网络包括具有被配置为接收扩频信号的接收机的第一从收发机,以及被配置为与第一从收发器通信的第二从收发器。 此外,主收发器与第一从机收发器和第二从机收发器进行通信。 主收发器被配置为管理第一从收发器和第二从属收发器之间的数据传输和同步。

    DATA TRANSFER USING FREQUENCY NOTCHING OF RADIO-FREQUENCY SIGNALS
    17.
    发明申请
    DATA TRANSFER USING FREQUENCY NOTCHING OF RADIO-FREQUENCY SIGNALS 有权
    使用无线电频率信号的频率切换进行数据传输

    公开(公告)号:US20070121756A1

    公开(公告)日:2007-05-31

    申请号:US11669027

    申请日:2007-01-30

    IPC分类号: H04L27/00

    摘要: A method for data transmission includes forming a notched radio-frequency (RF) burst according to one or more data values, where a bandwidth of the notched RF burst is at least two percent of the center frequency of the notched RF burst. Forming a notched RF pulse includes altering, according to the data, at least one of the amplitude and phase of one or more selected components, where each of the selected components has a bandwidth within the bandwidth of the notched RF burst.

    摘要翻译: 一种用于数据传输的方法包括:根据一个或多个数据值形成带隙的射频(RF)突发,其中,所述缺口的RF突发的带宽为所述有缺口的RF突发的中心频率的至少2%。 形成缺口RF脉冲包括根据数据改变一个或多个所选择的组件的幅度和相位中的至少一个,其中每个所选择的组件具有在缺口RF突发的带宽内的带宽。

    ULTRA-WIDEBAND RADAR SYSTEM USING SUB-BAND CODED PULSES
    18.
    发明申请
    ULTRA-WIDEBAND RADAR SYSTEM USING SUB-BAND CODED PULSES 有权
    超声波雷达系统使用子带编码脉冲

    公开(公告)号:US20050179585A1

    公开(公告)日:2005-08-18

    申请号:US10851635

    申请日:2004-05-21

    摘要: Methods and apparatus are provided for radar systems using multiple pulses that are shorter than the expected range delay extent of the target to be imaged. In one implementation, a method for performing radar includes the steps of: transmitting a plurality of pulses, each pulse having a different center frequency and a time duration shorter than an expected range delay extent of a target, wherein a total bandwidth is defined by a bandwidth occupied by the plurality of pulses; receiving reflections of the plurality of pulses; and performing pulse compression on the received pulse reflections to generate a detection signal having a radar resolution approximately equivalent to the transmission and reception of a single pulse having the total bandwidth. In preferred form, the pulses comprise ultrawideband (UWB) pulses each occupying a sub-band of the overall system bandwidth.

    摘要翻译: 为使用比要成像的目标的预期范围延迟范围短的多个脉冲的雷达系统提供方法和装置。 在一个实施方式中,执行雷达的方法包括以下步骤:发送多个脉冲,每个脉冲具有与目标的预期范围延迟范围不同的中心频率和持续时间,其中总带宽由 多个脉冲占用的带宽; 接收多个脉冲的反射; 并对所接收的脉冲反射进行脉冲压缩,以生成雷达分辨率近似等于具有总带宽的单个脉冲的发送和接收的检测信号。 在优选形式中,脉冲包括每个占据整个系统带宽的子带的超宽带(UWB)脉冲。