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    Apparatus, system and method for flip modulation in an impulse radio communications system
    1.
    发明授权
    Apparatus, system and method for flip modulation in an impulse radio communications system 失效
    用于脉冲无线电通信系统中的翻转调制的装置，系统和方法

    公开(公告)号：US07526250B2

    公开(公告)日：2009-04-28

    申请号：US11213922

    申请日：2005-08-30

    申请人： Larry W. Fullerton ,  James L. Richards ,  Ivan A. Cowie ,  David M. Dickson ,  Vernon R. Brethour ,  Preston Jett

    发明人： Larry W. Fullerton ,  James L. Richards ,  Ivan A. Cowie ,  David M. Dickson ,  Vernon R. Brethour ,  Preston Jett

    IPC分类号： H04B1/40 ,  H04B1/02

    CPC分类号： H04B1/7095 ,  H04B1/71632 ,  H04B1/7174 ,  H04B1/7176 ,  H04B1/7183

    摘要： Apparatuses, systems and methods for transmitting and receiving modulated impulse radio signals. An impulse radio receiver includes a time base, a precision timing generator, a template generator, a delay, first and second correlators, a data detector and a time base adjustor. The time base produces a periodic timing signal that is used by the precision timing generator to produce a timing trigger signal. The template generator uses the timing trigger signal to produce a template signal. A delay receives the template signal and outputs a delayed template signal. When an impulse radio signal is received, the first correlator correlates the received impulse radio signal with the template signal to produce a first correlator output signal, and the second correlator correlates the received impulse radio signal with the delayed template signal to produce a second correlator output signal. The data detector produces a data signal based on at least the first correlator output signal. The time base adjustor produces a time base adjustment signal based on at least the second correlator output signal. The time base adjustment signal is used to synchronize the time base with the received impulse radio signal.

    摘要翻译： 用于发送和接收调制脉冲无线电信号的装置，系统和方法。 脉冲无线电接收机包括时基，精度定时发生器，模板发生器，延迟，第一和第二相关器，数据检测器和时基调节器。 时基产生周期性定时信号，由精确定时发生器用来产生定时触发信号。 模板发生器使用定时触发信号产生模板信号。 延迟接收模板信号并输出​​延迟的模板信号。 当接收到脉冲无线电信号时，第一相关器将接收到的脉冲无线电信号与模板信号相关，以产生第一相关器输出信号，并且第二相关器将接收的脉冲无线电信号与延迟的模板信号相关联，以产生第二相关器输出 信号。 数据检测器至少基于第一相关器输出信号产生数据信号。 时基调节器至少基于第二相关器输出信号产生时基调整信号。 时基调整信号用于使时基与接收的脉冲无线电信号同步。

    Apparatus, system and method for flip modulation in an impulse radio communications system
    2.
    发明授权
    Apparatus, system and method for flip modulation in an impulse radio communications system 失效
    用于脉冲无线电通信系统中的翻转调制的装置，系统和方法

    公开(公告)号：US06937667B1

    公开(公告)日：2005-08-30

    申请号：US09537692

    申请日：2000-03-29

    申请人： Larry W. Fullerton ,  James L. Richards ,  Ivan A. Cowie ,  David M. Dickson ,  Vernon R. Brethour ,  Preston Jett

    发明人： Larry W. Fullerton ,  James L. Richards ,  Ivan A. Cowie ,  David M. Dickson ,  Vernon R. Brethour ,  Preston Jett

    IPC分类号： H04B1/7095 ,  H04B1/7163 ,  H04B1/717 ,  H04B1/7176 ,  H04B1/7183 ,  H04L25/49 ,  H04B1/02 ,  H04B1/04

    CPC分类号： H04B1/7095 ,  H04B1/71632 ,  H04B1/7174 ,  H04B1/7176 ,  H04B1/7183

    摘要： Apparatuses, systems and methods for transmitting and receiving modulated impulse radio signals. An impulse radio receiver includes a time base, a precision timing generator, a template generator, a delay, first and second correlators, a data detector and a time base adjustor. The time base produces a periodic timing signal that is used by the precision timing generator to produce a timing trigger signal. The template generator uses the timing trigger signal to produce a template signal. A delay receives the template signal and outputs a delayed template signal. When an impulse radio signal is received, the first correlator correlates the received impulse radio signal with the template signal to produce a first correlator output signal, and the second correlator correlates the received impulse radio signal with the delayed template signal to produce a second correlator output signal. The data detector produces a data signal based on at least the first correlator output signal. The time base adjustor produces a time base adjustment signal based on at least the second correlator output signal. The time base adjustment signal is used to synchronize the time base with the received impulse radio signal.

    摘要翻译： 用于发送和接收调制脉冲无线电信号的装置，系统和方法。 脉冲无线电接收机包括时基，精度定时发生器，模板发生器，延迟，第一和第二相关器，数据检测器和时基调节器。 时基产生周期性定时信号，由精确定时发生器用来产生定时触发信号。 模板发生器使用定时触发信号产生模板信号。 延迟接收模板信号并输出​​延迟的模板信号。 当接收到脉冲无线电信号时，第一相关器将接收到的脉冲无线电信号与模板信号相关，以产生第一相关器输出信号，并且第二相关器将接收的脉冲无线电信号与延迟的模板信号相关联，以产生第二相关器输出 信号。 数据检测器至少基于第一相关器输出信号产生数据信号。 时基调节器至少基于第二相关器输出信号产生时基调整信号。 时基调整信号用于使时基与接收的脉冲无线电信号同步。

    Method for mitigating effects of interference in impulse radio communication
    3.
    发明授权
    Method for mitigating effects of interference in impulse radio communication 失效
    减轻冲突无线电通信干扰影响的方法

    公开(公告)号：US06823022B1

    公开(公告)日：2004-11-23

    申请号：US09587033

    申请日：2000-06-02

    申请人： Larry W. Fullerton ,  James L. Richards ,  Vernon R. Brethour ,  Mark D. Roberts ,  Mark A. Barnes ,  Ivan A. Cowie ,  Donald D. Mondul

    发明人： Larry W. Fullerton ,  James L. Richards ,  Vernon R. Brethour ,  Mark D. Roberts ,  Mark A. Barnes ,  Ivan A. Cowie ,  Donald D. Mondul

    IPC分类号： H04B1500

    CPC分类号： H04B1/719 ,  H04B2001/6908

    摘要： A method for mitigating interference in impulse radio communication conveying a message from a transmitting station to a receiving station. The method comprises the steps of: (a) conveying the message in packets; (b) repeating conveyance of selected packets to make up a repeat package; and (c) conveying the repeat package a plurality of times at a repeat period greater than twice the occurrence period of the interference. The communication may convey a message from a proximate transmitter to a distal receiver, and receive a message by a proximate receiver from a distal transmitter. In such a system, the method comprises the steps of: (a) providing interference indications by the distal receiver to the proximate transmitter; (b) using the interference indications to determine predicted noise periods; and (c) operating the proximate transmitter to convey the message according to at least one of the following: (1) avoiding conveying the message during noise periods; (2) conveying the message at a higher power during noise periods; (3) varying error detection coding in the message during noise periods; (4) retransmitting the message following noise periods; (5) avoiding conveying the message when interference is greater than a first strength; (6) conveying the message at a higher power when the interference is greater than a second strength; (7) varying error detection coding in the message when the interference is greater than a third strength; and (8) retransmitting a portion of the message after interference has subsided to less than a predetermined strength.

    摘要翻译： 一种用于减轻从发射站向接收站传送消息的脉冲无线电通信中的干扰的方法。 该方法包括以下步骤：（a）以消息的形式传送消息; （b）重复输送所选择的数据包以构成重复包; 和（c）以大于干扰发生周期的两倍的重复周期传送重复包多次。 通信可以将消息从邻近发射机传送到远端接收机，并且从远端发射机接收邻近接收机的消息。 在这种系统中，该方法包括以下步骤：（a）将远端接收机的干扰指示提供给邻近发射机; （b）使用干扰指示来确定预测的噪声周期; （c）根据以下至少一项操作近邻发射机传送消息：（1）避免在噪声周期期间传送消息; （2）在噪声期间以较高的功率传送消息; （3）在噪声周期期间在消息中改变错误检测编码; （4）在噪声周期后重传消息; （5）当干扰大于第一强度时避免传达消息; （6）当干扰大于第二强度时，以更高的功率传送消息; （7）当干扰大于第三强度时，在消息中改变错误检测编码; 和（8）在干扰之后将消息的一部分重新发送到小于预定的强度。

    Vector modulation system and method for wideband impulse radio communications
    4.
    发明授权
    Vector modulation system and method for wideband impulse radio communications 失效
    用于宽带脉冲无线电通信的矢量调制系统和方法

    公开(公告)号：US06763057B1

    公开(公告)日：2004-07-13

    申请号：US09538519

    申请日：2000-03-29

    申请人： Larry W. Fullerton ,  James L. Richards ,  Ivan A. Cowie ,  Vernon R. Brethour

    发明人： Larry W. Fullerton ,  James L. Richards ,  Ivan A. Cowie ,  Vernon R. Brethour

    IPC分类号： H04B169

    CPC分类号： H04B1/7176 ,  H04B1/7095 ,  H04B1/7183 ,  H04L25/4902

    摘要： An apparatus and method for communicating information using an ultra wideband impulse radio transmitter and receiver is disclosed. The method includes the steps of generating and transmitting a series of time-modulated pulses, each pulse delayed by one of four predetermined time delay periods and representative of at least two data bits of information, and receiving and demodulating the series of time-modulated pulses to estimate the data bits associated with each pulse. The apparatus includes an impulse radio transmitter and an impulse radio receiver. The transmitter transmits the series of time-modulated pulses and includes a transmitter time base, a time delay modulator, a code time modulator, an output stage, and a transmitting antenna. The receiver receives and demodulates the series of time-modulated pulses using a receiver time base and two correlators, one correlator designed to operate after a pre-determined delay with respect to the other correlator. Each correlator includes an integrator and a comparator, and may also include an averaging circuit that calculates an average output for each correlator, as well as a track and hold circuit for holding the output of the integrators. The receiver further includes an adjustable time delay circuit that may be used to adjust the predetermined delay between the correlators in order to improve detection of the series of time-modulated pulses.

    摘要翻译： 公开了一种使用超宽带脉冲无线电发射机和接收机传送信息的装置和方法。 该方法包括以下步骤：产生和发送一系列时间调制脉冲，每个脉冲延迟四个预定时间延迟周期中的一个并代表信息的至少两个数据位，并且接收和解调一系列时间调制脉冲 以估计与每个脉冲相关联的数据位。 该装置包括脉冲无线电发射机和脉冲无线电接收机。 发射机发送一系列时间调制脉冲，包括发射机时基，时间延迟调制器，码时间调制器，输出级和发射天线。 接收机使用接收机时基和两个相关器接收和解调一系列时间调制脉冲，一个相关器被设计为在相对于另一个相关器的预定延迟之后操作。 每个相关器包括积分器和比较器，并且还可以包括计算每个相关器的平均输出的平均电路以及用于保持积分器的输出的跟踪和保持电路。 接收机还包括可调时间延迟电路，其可以用于调整相关器之间的预定延迟，以便改进对一系列时间调制脉冲的检测。

    Method and apparatus for applying codes having pre-defined properties
    9.
    发明授权
    Method and apparatus for applying codes having pre-defined properties 有权
    用于应用具有预定属性的代码的方法和装置

    公开(公告)号：US07711026B2

    公开(公告)日：2010-05-04

    申请号：US11902171

    申请日：2007-09-19

    申请人： Mark D. Roberts ,  Marcus H. Pendergrass ,  Larry W. Fullerton ,  Ivan A. Cowie ,  James L. Richards

    发明人： Mark D. Roberts ,  Marcus H. Pendergrass ,  Larry W. Fullerton ,  Ivan A. Cowie ,  James L. Richards

    IPC分类号： H04B1/69

    CPC分类号： H04L25/4902

    摘要： A method for specifying pulse characteristics applies codes having pre-defined characteristics to a layout. The layout can be sequentially subdivided into at least first and second components that have the same or different sizes. The method applies a first code having first pre-defined properties to the first component and a second code having second pre-defined properties to the second component. The pre-defined properties may relate to the auto-correlation property, the cross-correlation property, and spectral properties, as examples. The codes can be used to specify subcomponents within a frame, and characteristic values (range-based, or discrete) within the subcomponents.

    摘要翻译： 用于指定脉冲特征的方法将具有预定义特征的代码应用于布局。 布局可以依次细分为具有相同或不同尺寸的至少第一和第二组件。 该方法将具有第一预定义属性的第一代码应用于第一组件，并将具有第二预定义属性的第二代码应用于第二组件。 作为示例，预定义的属性可以涉及自相关性质，互相关性质和光谱性质。 代码可用于指定一个帧内的子组件，以及子组件中的特征值（基于范围或离散）。

    System and method for impulse radio power control
    10.
    发明授权
    System and method for impulse radio power control 有权
    脉冲无线电功率控制系统和方法

    公开(公告)号：US06539213B1

    公开(公告)日：2003-03-25

    申请号：US09332501

    申请日：1999-06-14

    申请人： James L. Richards ,  Larry W. Fullerton ,  Ivan A. Cowie

    发明人： James L. Richards ,  Larry W. Fullerton ,  Ivan A. Cowie

    IPC分类号： H04Q720

    CPC分类号： H04W52/362 ,  H04B1/7163 ,  H04B1/7183 ,  H04B2001/6908 ,  H04W52/20 ,  H04W52/24 ,  H04W52/241 ,  H04W52/367

    摘要： A system and method for impulse radio power control wherein a first transceiver transmits an impulse radio signal to a second transceiver. A power control update is calculated according to a performance measurement of the signal received at the second transceiver. The transmitter power of either transceiver, depending on the particular embodiment, is adjusted according to the power control update. Various performance measurements are employed according to the current invention to calculate a power control update, including bit error rate, signal-to-noise ratio, and received signal strength, used alone or in combination. Interference is thereby reduced, which is particularly important where multiple impulse radios are operating in close proximity and their transmission interfere with one another. Reducing the transmitter power of each radio to a level that produces satisfactory reception increases the total number of radios that can operate in an area without saturation. Reducing transmitter power also increases transceiver efficiency.

    摘要翻译： 一种用于脉冲无线电功率控制的系统和方法，其中第一收发器向第二收发器发送脉冲无线电信号。 根据在第二收发器处接收到的信号的性能测量来计算功率控制更新。 取决于特定实施例的任一收发器的发射机功率根据功率控制更新进行调整。 根据本发明采用各种性能测量来计算单独或组合使用的功率控制更新，包括误码率，信噪比和接收信号强度。 因此，减少了干扰，这在多个脉冲无线电正在紧密地操作并且它们的传输彼此干扰的情况下是特别重要的。 将每个无线电台的发射机功率降低到产生令人满意的接收的水平，可以增加无饱和区域中可以工作的无线电总数。 降低发射机功率也可以提高收发机的效率。