公开(公告)号：US06636566B1

公开(公告)日：2003-10-21

申请号：US09592288

申请日：2000-06-12

Applicant: Mark D. Roberts ,  Marcus H. Pendergrass ,  Larry W. Fullerton ,  James L. Richards

Inventor： Mark D. Roberts ,  Marcus H. Pendergrass ,  Larry W. Fullerton ,  James L. Richards

IPC: H04B1406

CPC classification number: H04B1/717 ,  H04B1/71632 ,  H04B1/7176 ,  H04B2201/71638

Abstract: A coding method for a pulse transmission system specifies temporal and/or non-temporal pulse characteristics according to temporal and/or non-temporal characteristic value layouts having one or more allowable and non-allowable regions. The method generates codes having predefined properties. The method generates a pulse train by mapping codes to the characteristic value layouts, where the codes satisfy predefined criteria. In addition, the predefined criteria can limit the number of pulse characteristic values within a non-allowable region. The predefined criteria can be based on relative pulse characteristic values. The predefined criteria can also pertain to spectral properties and to correlation properties. The predefined criteria may pertain to code length and to the number of members of a code family. The pulse train characteristics may pertain to a subset of the pulse train.

Abstract translation: 用于脉冲传输系统的编码方法根据具有一个或多个允许和不允许区域的时间和/或非时间特征值布局来指定时间和/或非时间脉冲特性。 该方法生成具有预定属性的代码。 该方法通过将代码映射到特征值布局来生成脉冲序列，其中代码满足预定标准。 此外，预定义的标准可以限制不允许区域内的脉冲特征值的数量。 预定义的标准可以基于相对脉冲特征值。 预定义的标准也可以涉及光谱性质和相关性质。 预定义的标准可以涉及代码长度和代码族的成员数量。 脉冲串特性可能与脉冲序列的子集有关。

公开(公告)号：US09674017B2

公开(公告)日：2017-06-06

申请号：US15096973

申请日：2016-04-12

Applicant: Entropic Communications, LLC

Inventor： Branislav Petrovic ,  Carl Harry Alelyunas

IPC: H03K7/08 ,  H04L27/10 ,  H04L25/49 ,  H03M3/00 ,  H04B1/692 ,  H04B1/717 ,  H03M1/82 ,  H04L27/04 ,  H04B1/707 ,  H04B1/7163

CPC classification number: H04L27/103 ,  H03M1/822 ,  H03M3/506 ,  H04B1/692 ,  H04B1/707 ,  H04B1/71632 ,  H04B1/7172 ,  H04B2201/71638 ,  H04L25/4902 ,  H04L27/04

Abstract: Methods and systems are provided for spreading spectral density of pulse streams during digital to analog conversion. An example spreading circuit may comprise an accumulator circuit, a bit generator circuit, a comparator circuit, and an inverter circuit. The accumulator circuit may be operable to receive a signal to be spread and generate an output based on the signal to be spread and at least one other input. The bit generator circuit may be operable to input into the accumulator circuit zero-sum sequences. The comparator circuit may be operable to provide a stream of pulses based on the output of the accumulator circuit. The inverter circuit may be operable to invert output of the comparator circuit, wherein output of the inverter circuit is input into the accumulator circuit.

公开(公告)号：US06636567B1

公开(公告)日：2003-10-21

申请号：US09592289

申请日：2000-06-12

Applicant: Mark D. Roberts ,  Marcus H. Pendergrass ,  Larry W. Fullerton ,  James L. Richards

Inventor： Mark D. Roberts ,  Marcus H. Pendergrass ,  Larry W. Fullerton ,  James L. Richards

IPC: H04B1406

CPC classification number: H04B1/7176 ,  H04B1/7174 ,  H04B2201/71638

Abstract: A code specifies characteristics of pulses transmitted and received by an impulse transmission system. The invention provides methods for defining non-allowable regions within pulse characteristic value range layouts enabling non-allowable regions to be considered when generating a code. Various approaches are used to define non-allowable regions based either on the pulse characteristic value range layout or on characteristic values of one or more other pulses. Various permutations accommodate differences between temporal and non-temporal pulse characteristics. Approaches address characteristic value layouts specifying fixed values and characteristic value layouts specifying non-fixed values. When generating codes to describe pulses, defined non-allowable regions within pulse characteristic value layouts are considered so that code element values do not map to non-allowable pulse characteristic values.

Abstract translation: A代码指定由脉冲传输系统发送和接收的脉冲的特性。 本发明提供了在脉冲特征值范围布局中定义不可允许区域的方法，使得在生成代码时可以考虑不允许的区域。 根据脉冲特征值范围布局或一个或多个其他脉冲的特征值，使用各种方法来定义不允许区域。 各种排列适应时间和非时间脉冲特性之间的差异。 方法寻址指定固定值的特征值布局和指定非固定值的特征值布局。当生成描述脉冲的代码时，考虑在脉冲特征值布局内定义的不允许区域，使得代码元素值不映射到不允许的脉冲 特征值。

公开(公告)号：US20180145722A1

公开(公告)日：2018-05-24

申请号：US15316170

申请日：2015-06-17

Applicant: DECAWAVE LTD.

Inventor： Michael MCLAUGHLIN ,  Billy VERSO

IPC: H04B1/719 ,  H04J11/00 ,  H04L5/02

CPC classification number: H04B1/719 ,  H04B1/7163 ,  H04B2201/694 ,  H04B2201/71638 ,  H04J11/0023 ,  H04J2211/001 ,  H04L5/026

Abstract: An ultra-wideband communication and/or location system having a plurality of channels, each implementing a respective one of a plurality of predetermined codewords. Within each channel, one or more predetermined pulse repetition frequences are defined. Within a single UWB system, more than two networks of transceivers may be co-located without mutual interference if each is assigned a unique combination of codewords and spreading factors.

公开(公告)号：US09312880B2

公开(公告)日：2016-04-12

申请号：US14280412

申请日：2014-05-16

Applicant: Entropic Communications, Inc.

Inventor： Branislav Petrovic ,  Carl Harry Alelyunas

IPC: H03K7/08 ,  H03M3/00 ,  H04L25/49 ,  H04B1/692 ,  H04B1/717 ,  H04B1/707 ,  H04B1/7163

CPC classification number: H04L27/103 ,  H03M1/822 ,  H03M3/506 ,  H04B1/692 ,  H04B1/707 ,  H04B1/71632 ,  H04B1/7172 ,  H04B2201/71638 ,  H04L25/4902 ,  H04L27/04

Abstract: A spreading method and apparatus for spreading the spectral density of a pulse stream by summing a set of randomly selected zero-sum sequences to an incoming pulse stream and ensuring that the number of pulses output by the spreading method and apparatus is equal to the number of pulses input to the spreading method and apparatus.

Abstract translation: 一种扩展方法和装置，用于通过将一组随机选择的零和序列与输入脉冲流相加来扩展脉冲流的频谱密度，并确保由扩展方法和装置输出的脉冲数等于 输入到扩展方法和装置的脉冲。

公开(公告)号：US09860094B2

公开(公告)日：2018-01-02

申请号：US15614910

申请日：2017-06-06

Applicant: Entropic Communications, LLC

Inventor： Branislav Petrovic ,  Carl Harry Alelyunas

IPC: H03K7/08 ,  H04L27/10 ,  H04L27/04 ,  H03M1/82 ,  H03M3/00 ,  H04B1/692 ,  H04L25/49 ,  H04B1/717 ,  H04B1/7163 ,  H04B1/707

CPC classification number: H04L27/103 ,  H03M1/822 ,  H03M3/506 ,  H04B1/692 ,  H04B1/707 ,  H04B1/71632 ,  H04B1/7172 ,  H04B2201/71638 ,  H04L25/4902 ,  H04L27/04

Abstract: Methods and systems are provided for spreading spectral density of pulse streams during digital to analog conversion. An example system may comprise an accumulator circuit, a bit generator circuit, and a feedback circuit. The accumulator circuit may be operable to receive a signal to be spread and generate an output based on the signal to be spread and on one or more inputs generated within the system. The bit generator circuit may be operable to input into the accumulator circuit sequences meeting at least one particular criterion. The feedback circuit may be operable to apply an adjustment to a signal corresponding to an output of the accumulator circuit to generate a feedback signal, and input the feedback signal into the accumulator circuit.

公开(公告)号：US20170338983A1

公开(公告)日：2017-11-23

申请号：US15614910

申请日：2017-06-06

Applicant: Entropic Communications, LLC

Inventor： Branislav Petrovic ,  Carl Harry Alelyunas

IPC: H04L27/10 ,  H04B1/692 ,  H04L27/04 ,  H03M1/82 ,  H04L25/49 ,  H03M3/00 ,  H04B1/717 ,  H04B1/7163 ,  H04B1/707

CPC classification number: H04L27/103 ,  H03M1/822 ,  H03M3/506 ,  H04B1/692 ,  H04B1/707 ,  H04B1/71632 ,  H04B1/7172 ,  H04B2201/71638 ,  H04L25/4902 ,  H04L27/04

Abstract: Methods and systems are provided for spreading spectral density of pulse streams during digital to analog conversion. An example system may comprise an accumulator circuit, a bit generator circuit, and a feedback circuit. The accumulator circuit may be operable to receive a signal to be spread and generate an output based on the signal to be spread and on one or more inputs generated within the system. The bit generator circuit may be operable to input into the accumulator circuit sequences meeting at least one particular criterion. The feedback circuit may be operable to apply an adjustment to a signal corresponding to an output of the accumulator circuit to generate a feedback signal, and input the feedback signal into the accumulator circuit.

公开(公告)号：EP3158654B1

公开(公告)日：2018-08-29

申请号：EP15731543.3

申请日：2015-06-17

Applicant: Decawave Ltd.

Inventor： MCLAUGHLIN, Michael ,  VERSO, Billy

IPC: H04B1/7163 ,  H04J11/00

CPC classification number: H04B1/719 ,  H04B1/7163 ,  H04B2201/694 ,  H04B2201/71638 ,  H04J11/0023 ,  H04J2211/001 ,  H04L5/026

Abstract: An ultra-wideband communication and/or location system having a plurality of channels, each implementing a respective one of a plurality of predetermined codewords. Within each channel, one or more predetermined pulse repetition frequences are defined. Within a single UWB system, more than two networks of transceivers may be co-located without mutual interference if each is assigned a unique combination of codewords and spreading factors.

公开(公告)号：EP3158654A1

公开(公告)日：2017-04-26

申请号：EP15731543.3

申请日：2015-06-17

Applicant: Decawave Ltd.

Inventor： MCLAUGHLIN, Michael ,  VERSO, Billy

IPC: H04B1/7163 ,  H04J11/00

CPC classification number: H04B1/719 ,  H04B1/7163 ,  H04B2201/694 ,  H04B2201/71638 ,  H04J11/0023 ,  H04J2211/001 ,  H04L5/026

Abstract: An ultra-wideband communication and/or location system having a plurality of channels, each implementing a respective one of a plurality of predetermined codewords. Within each channel, one or more predetermined pulse repetition frequences are defined. Within a single UWB system, more than two networks of transceivers may be co-located without mutual interference if each is assigned a unique combination of codewords and spreading factors.

Abstract translation: 一种具有多个信道的超宽带通信和/或定位系统，每个信道实现多个预定码字中的相应一个。 在每个通道内，定义一个或多个预定的脉冲重复频率。 在单个UWB系统内，如果每个收发器的每个被分配了码字和扩频因子的唯一组合，那么两个以上的收发器网络可以被共同定位而没有相互干扰。

公开(公告)号：US20180241596A1

公开(公告)日：2018-08-23

申请号：US15860016

申请日：2018-01-02

Applicant: Entropic Communications, LLC

Inventor： Branislav Petrovic ,  Carl Harry Alelyunas

IPC: H04L27/10 ,  H03M1/82 ,  H03M3/00 ,  H04B1/692 ,  H04B1/717 ,  H04L25/49 ,  H04L27/04

CPC classification number: H04L27/103 ,  H03M1/822 ,  H03M3/506 ,  H04B1/692 ,  H04B1/707 ,  H04B1/71632 ,  H04B1/7172 ,  H04B2201/71638 ,  H04L25/4902 ,  H04L27/04

Abstract: Methods and systems are provided for spreading spectral density of digital-to-analog conversion output signals. A spreading circuit may spread a digital-to-analog converter (DAC) output signal over a particular frequency spectrum, with the spreading circuit receiving the DAC output signal; generating a plurality of internal control signals; and generating based on the DAC output signal and the one or more internal control signal a corresponding spread output signal. The Internal control signals may comprise at least a first control signal, generated based on sequences meeting at least one particular criterion, a second control signal, generated based on a feedback corresponding to an intermediate output generated within the spreading circuit. The spreading circuit may generate the first control signal based on zero-sum sequences. The spreading circuit may generate a stream of pulses based on the intermediate output, and may generate the feedback signal based on the stream of pulses.