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公开(公告)号：US06529568B1
公开(公告)日：2003-03-04
申请号：US09689702
申请日：2000-10-13
IPC分类号： H03D104
CPC分类号： H04B1/719 , H04B1/71637
摘要： An impulse radio concurrently receives an impulse signal and interference. An interference sampler samples the interference before an expected time of arrival of an impulse in the impulse signal, to produce an interference nulling sample. Then, when the impulse arrives, a data sampler samples the impulse in the presence of the interference to produce a data sample including undesired interference energy. The anticipatory nulling sample is an estimate of the undesired interference energy captured in the subsequent data sample so that the nulling sample can be used to cancel the interference energy from the data sample. When the nulling sample precedes the data sample by an odd number of half cycle periods of the interference, the nulling sample is additively combined with the data sample to derive a corrected data sample, from which a portion of the interference energy is canceled. When the nulling sample precedes the data sample by an even number of half cycle periods of the interference, the nulling sample is subtractively combined with the data sample to derive a corrected data sample.
摘要翻译： 脉冲无线电同时接收脉冲信号和干扰。 干扰采样器在脉冲到达脉冲信号的预期时间之前对干扰进行采样，以产生干扰归零样本。 然后，当脉冲到达时，数据采样器在存在干扰的情况下采样脉冲以产生包含不期望的干扰能量的数据样本。 预期归零样本是对后续数据样本中捕获的不需要的干扰能量的估计，使得归零样本可用于消除来自数据样本的干扰能量。 当归零采样先于干扰的奇数个半周期的数据采样时，将归零采样与数据采样相加组合以导出校正的数据采样，一部分干扰能量从该样本被取消。 当归零采样在干扰的偶数个半周期之前的数据样本之前，将归零样本与数据样本相减，以得到校正的数据样本。
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2.发明授权公开(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。
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3.发明申请Method for Generating Communication Signal Sequences Having Desirable Correlation Properties and System for Using Same 失效用于生成具有理想相关属性的通信信号序列和使用相同系统的方法公开(公告)号：US20090022207A1
公开(公告)日：2009-01-22
申请号：US12144979
申请日：2008-06-24
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 。
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4.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
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。
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5.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。
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6.发明授权公开(公告)号：US06914949B2
公开(公告)日：2005-07-05
申请号：US09754079
申请日：2001-01-05
CPC分类号： H04B1/719 , H04B1/71637 , H04B2001/6908
摘要： Potential interference is reduced in an impulse radio. A signal including an impulse signal and potential interference is received by the impulse radio. The impulse signal includes a sequence of impulses. The sequence of impulses of the received signal is sampled at a sequence of data sample times to produce a sequence of data samples. The received signal is also sampled at a plurality of time offsets from each of the data sample times to produce a plurality of nulling samples corresponding to each of the data samples. A separate sequence of nulling samples for each of the time offsets is thereby produced. Each of the data samples is then separately combined with a corresponding nulling sample from each of the separate sequences of nulling samples to produce a separate sequence of adjusted samples corresponding to each of the time offsets. A separate quality metric, representative of a signal-to-interference level, is then determined for each of the separate sequences of adjusted samples. A preferred sequence of samples is selected for further signal processing based on the determined quality metrics. Alternatively or additionally, one of the plurality of time offsets is selected as the preferred time offset based on the determined quality metrics.
摘要翻译： 在脉冲无线电中减少潜在的干扰。 包括脉冲信号和潜在干扰的信号由脉冲无线电接收。 脉冲信号包括脉冲序列。 接收信号的脉冲序列在数据采样时间序列中采样，以产生一系列数据样本。 所接收的信号也在从每个数据采样时间的多个时间偏移量处采样，以产生对应于每个数据样本的多个零位样本。 由此产生用于每个时间偏移的单独的零位样本序列。 然后将每个数据样本分别与来自归零样本的单独序列中的每一个的相应的归零样本组合，以产生对应于每个时间偏移的单独调整样本序列。 然后，针对调整样本的每个单独序列确定表示信号与干扰水平的单独质量度量。 基于所确定的质量度量，选择优选的样本序列用于进一步的信号处理。 或者或另外，基于所确定的质量度量，将多个时间偏移中的一个选择为优选时间偏移。
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7.发明授权Method for generating communication signal sequences having desirable correlation properties and system for using same 失效用于产生具有期望的相关性质的通信信号序列的方法和用于其的系统公开(公告)号：US07675960B2
公开(公告)日：2010-03-09
申请号：US12144979
申请日：2008-06-24
IPC分类号： 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 。
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8.发明授权Method for generating communication signal sequences having desirable correlation properties and system for using game 失效用于生成具有期望的相关属性的通信信号序列的方法和用于使用游戏的系统公开(公告)号：US07400666B2
公开(公告)日：2008-07-15
申请号：US10616118
申请日：2003-07-09
IPC分类号： 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 。
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9.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
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。
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公开(公告)号：US07477910B2
公开(公告)日：2009-01-13
申请号：US11708822
申请日：2007-02-21
CPC分类号： H04L5/0037 , H04L5/0062 , H04L5/0073 , H04W84/18
摘要： A set of piconets and corresponding methods and computer programs may reduce contention time between piconets. In one embodiment, a seven-length code architecture may be used with group(s) of bands so that contention time cannot exceed 1/7 of the time. Up to seven different bands can be used within each group. When less than seven bands are used (e.g., three or six), at least one of the bands may be assigned to more than one dwell time during a time span. Alternatively, each dwell time within the time span may be assigned to a different band. The state may be changed as needed or desired. Substitution of extra bands may also be used. Using either scheme (repeated bands or changing states), a prime-number architecture can be used with a non-prime number of different bands. Simultaneous communications using at least two bands within a piconet may be used.
摘要翻译： 一组微微网和相应的方法和计算机程序可以减少微微网之间的竞争时间。 在一个实施例中，七长度代码架构可以与频带组一起使用，使得争用时间不能超过时间的1/7。 每个组中最多可以使用七个不同的频段。 当使用小于七个频带（例如，三个或六个）时，在时间间隔期间，可以将至少一个频带分配给多于一个停留时间。 或者，可以将时间范围内的每个停留时间分配给不同的频带。 状态可以根据需要而改变。 也可以使用额外频带的替代。 使用任一方案（重复频带或改变状态），素数架构可以与非素数的不同频带一起使用。 可以使用在微微网内使用至少两个频带的同时通信。
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