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1. 发明授权

US5881101A Burst serial tone waveform signaling method and device for squelch/wake-up control of an HF transceiver 失效
标题翻译：突发串行音波形信号方法和用于HF收发器的静噪/唤醒控制的装置
公开(公告)号：US5881101A
公开(公告)日：1999-03-09
申请号：US299358
申请日：1994-09-01
申请人： William Nelson Furman , Thomas Gerard Kenney , Charles Allen Linn , Michael Andrew Wadsworth
发明人： William Nelson Furman , Thomas Gerard Kenney , Charles Allen Linn , Michael Andrew Wadsworth
IPC分类号： H03G3/00 , H03G3/34 , H04B1/16 , H04B1/38 , H04B1/10
CPC分类号： H03G3/005 , H03G3/344 , H04B1/38 , H04W52/0229 , H04W52/028 , Y02B60/50
摘要： A device and method for controlling HF single side band radio squelch operation in which a serial tone burst indicates the start and end of a transmission and identifies an on-going transmission. Additionally, receivers in a power saving sleep mode can be activated by receipt of a set of serial tone bursts that have been transmitted with sufficient duration for the receiver to be assured the opportunity to detect them. During the subsequent transmission of information, single "keep-alive" serial tone bursts are transmitted at random time intervals. The end of a transmission is signalled by another set of serial tone bursts. The bursts are provided with the transmitted signal on its frequency and preserve signal bandwidth.
摘要翻译：用于控制HF单频无线电静噪操作的装置和方法，其中串行音突发指示传输的开始和结束，并识别正在进行的传输。此外，通过接收已经以足够的持续时间发送的一组串行音调脉冲串来激活省电睡眠模式的接收机，以使接收机有机会检测它们。在随后的信息传输期间，以随机时间间隔发送单个“保持活动”串行音脉冲串。传输的结束由另一组串行音调脉冲串发出信号。脉冲串在其频率上被提供有发射信号并保持信号带宽。

2. 发明授权

US07433392B2 Wireless communications device performing block equalization based upon prior, current and/or future autocorrelation matrix estimates and related methods 有权
标题翻译：基于先前，当前和/或将来的自相关矩阵估计和相关方法的无线通信设备执行块均衡
公开(公告)号：US07433392B2
公开(公告)日：2008-10-07
申请号：US11054157
申请日：2005-02-09
申请人： John Wesley Nieto , Michael Andrew Wadsworth
发明人： John Wesley Nieto , Michael Andrew Wadsworth
IPC分类号： H04B1/69
CPC分类号： H04L25/03082 , H04L25/0232 , H04L25/03038 , H04L2025/03452 , H04L2025/03605
摘要： A wireless communications device may include a wireless receiver for receiving signals comprising alternating known and unknown symbol portions, and a demodulator connected thereto. The demodulator may include a channel estimation module for generating respective channel estimates for a prior unknown symbol portion(s), current unknown symbol portion and for future unknown symbol portion(s). An autocorrelation module may generate autocorrelation matrices for the prior, current and future unknown symbol portions. A channel match filter module may generate respective channel matching coefficients for the prior and current/future unknown symbol portions, and a factorization module may divide the autocorrelation matrices into respective upper and lower autocorrelation matrices. A transformation module may transform the channel matching coefficients into upper and lower channel matching coefficients. A a back-substitution module may determine the current unknown symbol portion based upon the upper and lower autocorrelation matrices and channel matching coefficients for the current and prior/future unknown symbol portions.
摘要翻译：无线通信设备可以包括用于接收包括交替的已知和未知符号部分的信号的无线接收机以及与之相连的解调器。解调器可以包括信道估计模块，用于生成用于现有未知符号部分，当前未知符号部分和未来未知符号部分的相应信道估计。自相关模块可以为先前的，当前的和未来的未知符号部分生成自相关矩阵。信道匹配滤波器模块可以为先前和当前/未来未知符号部分生成相应的信道匹配系数，并且因式分解模块可以将自相关矩阵划分为相应的上和下自相关矩阵。变换模块可以将信道匹配系数变换为上和下信道匹配系数。背替代模块可以基于当前和未来/未来未知符号部分的上和下自相关矩阵和信道匹配系数来确定当前未知符号部分。

3. 发明授权

US07433430B2 Wireless communications device providing enhanced block equalization and related methods 有权
标题翻译：提供增强的块均衡和相关方法的无线通信设备
公开(公告)号：US07433430B2
公开(公告)日：2008-10-07
申请号：US11054158
申请日：2005-02-09
申请人： Michael Andrew Wadsworth , John Wesley Nieto
发明人： Michael Andrew Wadsworth , John Wesley Nieto
IPC分类号： H03D1/00
CPC分类号： H04L25/0246 , H04L25/0232
摘要： A wireless communications device may include a wireless receiver receiving signals having alternating known and unknown symbol portions over a channel, and a demodulator systolic array. The demodulator systolic array may include a channel estimation module generating respective channel estimates for each unknown symbol portion based upon the known symbol portions. An autocorrelation module may generate autocorrelation matrices based upon the channel estimates. A channel match filter module may generate respective channel matching coefficients for the unknown symbol portions, and a factorization module may divide the autocorrelation matrices into respective upper and lower autocorrelation matrices. A transformation module may transform the channel matching coefficients into upper and lower channel matching coefficients. A back-substitution module may determine the unknown symbol portions by estimating the unknown symbol portions based upon autocorrelation matrices and channel matching coefficients, lower autocorrelation matrices and channel matching coefficients, and combining the estimates.
摘要翻译：无线通信设备可以包括在信道上接收具有交替已知和未知符号部分的信号的无线接收机，以及解调器收缩阵列。解调器收缩阵列可以包括信道估计模块，其基于已知符号部分为每个未知符号部分生成相应的信道估计。自相关模块可以基于信道估计产生自相关矩阵。信道匹配滤波器模块可以为未知符号部分生成相应的信道匹配系数，并且分解模块可以将自相关矩阵划分为相应的上和下自相关矩阵。变换模块可以将信道匹配系数变换为上和下信道匹配系数。背替代模块可以基于自相关矩阵和信道匹配系数，较低的自相关矩阵和信道匹配系数估计未知符号部分，并组合估计来确定未知符号部分。

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