公开(公告)号：US20060007988A1

公开(公告)日：2006-01-12

申请号：US11213922

申请日：2005-08-30

申请人： Larry Fullerton ,  James Richards ,  Ivan Cowie ,  David Dickson ,  Vernon Brethour ,  Preston Jett

发明人： Larry Fullerton ,  James Richards ,  Ivan Cowie ,  David Dickson ,  Vernon Brethour ,  Preston Jett

IPC分类号： H04B1/69 ,  H04B1/707

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.

公开(公告)号：US20050117628A1

公开(公告)日：2005-06-02

申请号：US10616118

申请日：2003-07-09

申请人： Vernon Brethour ,  Larry Fullerton ,  Marcus Pendergrass ,  James Richards

发明人： Vernon Brethour ,  Larry Fullerton ,  Marcus Pendergrass ,  James Richards

IPC分类号： H04J13/00 ,  H04J11/00 ,  H04B1/69

CPC分类号： H04J13/10 ,  H04B1/7163 ,  H04B1/71632 ,  H04B2001/6908

摘要： A method for generating code sequences having good correlation properties comprising steps of selecting a code length comprising a number of chips, selecting a ruler which defines the position of non-zero values within the chips, and overlaying the non-zero values with an amplitude pattern.

摘要翻译： 一种用于产生具有良好相关特性的代码序列的方法，包括以下步骤：选择包括多个芯片的代码长度，选择限定所述芯片内的非零值的位置的标尺，并用幅度图案覆盖所述非零值 。

公开(公告)号：US20080100497A1

公开(公告)日：2008-05-01

申请号：US11979191

申请日：2007-10-31

申请人： Larry Fullerton ,  James Richards ,  Ivan Cowie

发明人： Larry Fullerton ,  James Richards ,  Ivan Cowie

IPC分类号： G01S1/20

CPC分类号： H04B1/7183 ,  G01S13/42 ,  G01S13/76 ,  H04B2001/6908

摘要： A system and a method for position determination by impulse radio using a first transceiver having a first clock providing a first reference signal and a second transceiver placed spaced from the first transceiver. The system determines the position of the second transceiver. The second transceiver has a second clock that provides a second reference signal. A first sequence of pulses are transmitted from the first transceiver. The first sequence of pulses are then received at the second transceiver and the second transceiver is then synchronized with the first sequence of pulses. A second sequence of pulses are transmitted from the second transceiver. The first transceiver receives the second sequence of pulses and the first transceiver is synchronized with the second sequence of pulses. A delayed first reference signal is generated in response to the synchronization with the second sequence of pulses. A time difference between the delayed first reference signal and the first reference signal is then measured. The time difference indicates a total time of flight of the first and second sequence of pulses. The distance between the first and the second transceiver is determined from the time difference. The direction of the second transceiver from the first transceiver is determined using a directional antenna. Finally, the position of the second transceiver is determined using the distance and the direction.

公开(公告)号：US20080063036A1

公开(公告)日：2008-03-13

申请号：US11979194

申请日：2007-10-31

申请人： James Richards ,  Ivan Cowie ,  Larry Fullerton ,  Mark Roberts ,  Randall Stanley ,  William Welch

发明人： James Richards ,  Ivan Cowie ,  Larry Fullerton ,  Mark Roberts ,  Randall Stanley ,  William Welch

IPC分类号： H04B1/69

CPC分类号： H04B1/71637 ,  H04B1/7183 ,  H04B1/719 ,  H04B2001/6908

摘要： A system and method are provided that can detect any part of a multipath impulse radio signal. More specifically, the method compares a template pulse train and the multipath impulse radio signal to obtain a comparison result. The system performs a threshold check on the comparison result. If the comparison result passes the threshold check, the system locks onto any part of the multipath impulse radio signal including a direct path part and at least one multipath reflection part. The system may also perform a quick check, a synchronization check, and/or a command check of the multipath impulse radio signal.

摘要翻译： 提供了可以检测多径脉冲无线电信号的任何部分的系统和方法。 更具体地，该方法比较模板脉冲串和多径脉冲无线电信号以获得比较结果。 系统对比较结果进行阈值检查。 如果比较结果通过阈值检查，则系统锁定到包括直接路径部分和至少一个多径反射部分的多径脉冲无线电信号的任何部分上。 系统还可以对多路径脉冲无线电信号执行快速检查，同步检查和/或命令检查。

公开(公告)号：US20060178163A1

公开(公告)日：2006-08-10

申请号：US11398951

申请日：2006-04-06

申请人： James Richards ,  Larry Fullerton ,  Ivan Cowie

发明人： James Richards ,  Larry Fullerton ,  Ivan Cowie

IPC分类号： H04B7/00 ,  H04Q7/20

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

摘要： A method for power control in an ultra wideband impulse radio system includes: (a) transmitting an impulse radio signal from a first transceiver; (b) receiving the impulse radio signal at a second transceiver; (c) determining at least one performance measurement of the received impulse radio signal; and (d) controlling output power of at least one of the first transceiver and the second transceiver in accordance with the at least one performance measurement.

摘要翻译： 一种超宽带脉冲无线电系统中的功率控制方法包括：（a）从第一收发器发送脉冲无线电信号; （b）在第二收发器处接收脉冲无线电信号; （c）确定接收到的脉冲无线电信号的至少一个性能测量; 以及（d）根据所述至少一个性能测量来控制所述第一收发器和所述第二收发器中的至少一个的输出功率。

公开(公告)号：US20060017614A1

公开(公告)日：2006-01-26

申请号：US10901404

申请日：2004-07-29

申请人： Larry Fullerton ,  James Richards ,  Ivan Cowie

发明人： Larry Fullerton ,  James Richards ,  Ivan Cowie

IPC分类号： G01S1/24

CPC分类号： H04B1/7183 ,  G01S13/42 ,  G01S13/76 ,  H04B2001/6908

摘要： A system and a method for position determination by impulse radio using a first transceiver having a first clock providing a first reference signal and a second transceiver placed spaced from the first transceiver. The system determines the position of the second transceiver. The second transceiver has a second clock that provides a second reference signal. A first sequence of pulses are transmitted from the first transceiver. The first sequence of pulses are then received at the second transceiver and the second transceiver is then synchronized with the first sequence of pulses. A second sequence of pulses are transmitted from the second transceiver. The first transceiver receives the second sequence of pulses and the first transceiver is synchronized with the second sequence of pulses. A delayed first reference signal is generated in response to the synchronization with the second sequence of pulses. A time difference between the delayed first reference signal and the first reference signal is then measured. The time difference indicates a total time of flight of the first and second sequence of pulses. The distance between the first and the second transceiver is determined from the time difference. The direction of the second transceiver from the first transceiver is determined using a directional antenna. Finally, the position of the second transceiver is determined using the distance and the direction.

公开(公告)号：US20050223407A1

公开(公告)日：2005-10-06

申请号：US11140797

申请日：2005-05-31

申请人： Larry Fullerton ,  Ivan Cowie ,  Timothy Payment ,  James Richards

发明人： Larry Fullerton ,  Ivan Cowie ,  Timothy Payment ,  James Richards

IPC分类号： H04L12/28 ,  H04N5/44 ,  H04N5/50 ,  H04N7/00 ,  H04N7/16 ,  H04N7/18 ,  H04N11/00

CPC分类号： H04N7/18 ,  H04N21/6131 ,  H04N21/6181 ,  H04W64/00 ,  H04W84/12

摘要： Impulse radio links are applied as the wireless means for allowing the separation of traditionally wired audio/video displays from their sources of information. This wireless separation affords an enhanced information system architecture in which a remote user interface can select from a variety of information and/or entertainment sources. The data bandwidth and superior performance of impulse radios in a high RF multipath environment open these previously hardwired interfaces to a wireless implementation. For example, untethered television is provided.

摘要翻译： 脉冲无线电链路被应用为允许将传统有线音频/视频显示器与其信息源分离的无线装置。 这种无线分离提供增强的信息系统架构，其中远程用户界面可以从各种信息和/或娱乐来源中进行选择。 高RF多径环境中的脉冲无线电的数据带宽和卓越性能将这些以前的硬连接接口打开到无线实现。 例如，提供无电视电视。

公开(公告)号：US20080075153A1

公开(公告)日：2008-03-27

申请号：US11902171

申请日：2007-09-19

申请人： Mark Roberts ,  Marcus Pendergrass ,  Larry Fullerton ,  Ivan Cowie ,  James Richards

发明人： Mark Roberts ,  Marcus Pendergrass ,  Larry Fullerton ,  Ivan Cowie ,  James Richards

IPC分类号： H04B1/38

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）。

公开(公告)号：US20060145853A1

公开(公告)日：2006-07-06

申请号：US11021753

申请日：2004-12-22

申请人： James Richards ,  Larry Fullerton ,  Ivan Cowie

发明人： James Richards ,  Larry Fullerton ,  Ivan Cowie

IPC分类号： G08B13/14 ,  H04Q5/22

CPC分类号： G01S13/765 ,  G01S13/0209 ,  G01S13/756 ,  G06K7/10306

摘要： A system and method for locating objects and/or receiving data associated with an object. An antenna or similar device that can intercept or modify RF energy is caused to vary its properties in accordance with a predefined time sequence pattern that is associated with the object. The antenna device is located proximate to the object to be located. To locate the object, a wide band radar device is utilized to transmit a probe signal and receive and analyze the return signal to identify the predefined pattern and determine the range to the antenna and thus determine the range to the associated object. The time sequence pattern is optionally modulated by a data stream to convey data associated with the object.

摘要翻译： 用于定位对象和/或接收与对象相关联的数据的系统和方法。 导致可以拦截或修改RF能量的天线或类似设备根据与对象相关联的预定时间序列模式改变其属性。 天线装置位于要定位的物体附近。 为了定位物体，利用宽带雷达装置传送探测信号并接收和分析返回信号以识别预定义的模式并确定天线的范围，从而确定与相关对象的距离。 时间序列模式可选地被数据流调制以传送与对象相关联的数据。

公开(公告)号：US20050089083A1

公开(公告)日：2005-04-28

申请号：US10955118

申请日：2004-09-30

申请人： Teresa Fisher ,  Jennifer Rolin ,  Irina Dodoukh ,  Vernon Brethour ,  Mark Roberts ,  James Richards

发明人： Teresa Fisher ,  Jennifer Rolin ,  Irina Dodoukh ,  Vernon Brethour ,  Mark Roberts ,  James Richards

IPC分类号： H04B1/69

CPC分类号： H04B1/7183 ,  H04B1/7075 ,  H04B1/719 ,  H04L25/4902

摘要： An ultra wideband system employing a threshold to detect signal quality during acquisition wherein the threshold is adjusted based on signal characteristics such as packet traffic rate, packet loss rate, and packet loss fraction. In one embodiment, the threshold is adjusted by adjusting the gain of a variable gain stage ahead of the threshold. In another embodiment, gain and threshold are adjusted in a coordinated manner wherein gain is adjusted for low signal levels and threshold is adjusted for high signal levels. In one embodiment, packet traffic rate is evaluated over an interval based on maximum packet length, number of monitor packets, and inter-packet delay. In a further embodiment, multiple ramp builders are operated in parallel at multiple code offset values to generate signal statistics to compare with the threshold. Embodiments are disclosed wherein the thresholds are adaptively adjusted based on signal performance characteristics or the multipath environment.

摘要翻译： 一种采用阈值的超宽带系统，用于在采集期间检测信号质量，其中基于诸如分组业务速率，分组丢失率和分组丢失分数的信号特征来调整阈值。 在一个实施例中，通过调整在阈值之前的可变增益级的增益来调整阈值。 在另一实施例中，以协调的方式调整增益和阈值，其中针对低信号电平调整增益，并且针对高信号电平调整阈值。 在一个实施例中，基于最大分组长度，监视分组数量和分组间延迟，在一个间隔上评估分组业务速率。 在另一实施例中，多个斜坡构建器以多个码偏移值并行操作，以产生与阈值进行比较的信号统计。 公开了其中根据信号性能特征或多路径环境自适应地调整阈值的实施例。