公开(公告)号：US20050135511A1

公开(公告)日：2005-06-23

申请号：US10739505

申请日：2003-12-18

申请人： Robert Molina

发明人： Robert Molina

IPC分类号： H04L27/14 ,  H04L27/156

CPC分类号： H04L27/156

摘要： A receiver (100) includes an input, a correlator (112), a phase-assisted demodulator (116), and an output. The input receives a modulated signal (102) and the correlator (112) generates a plurality of correlation values (114) from the received modulated signal (102). The phase-assisted demodulator (116), coupled to the correlator (112), selects one of the plurality of correlation values based on relative magnitude and relative phase information of at least a two of the plurality of correlation values. The output provides a demodulated signal (124), corresponding to the modulated signal (102), based on the selected one of the plurality of correlation values. The correlation value (11) having the largest magnitude and the correlation value having the second largest magnitude is used in combination with the relative phase information of both correlation values in determining which correlation value corresponds to the correct demodulated symbol.

摘要翻译： 接收机（100）包括输入，相关器（112），相位辅助解调器（116）和输出。 输入接收调制信号（102），相关器（112）从接收的调制信号（102）产生多个相关值（114）。 耦合到相关器（112）的相位辅助解调器（116）基于多个相关值中的至少两个的相对幅度和相对相位信息来选择多个相关值之一。 输出基于所选择的多个相关值中的一个，提供对应于调制信号（102）的解调信号（124）。 将具有最大幅度的相关值（11）和具有第二大幅度的相关值与确定哪个相关值对应于正确的解调符号的两个相关值的相对相位信息组合使用。

公开(公告)号：US20050079850A1

公开(公告)日：2005-04-14

申请号：US10963387

申请日：2004-10-12

申请人： Weizhong Chen ,  Robert Molina

发明人： Weizhong Chen ,  Robert Molina

IPC分类号： H04B1/30 ,  H04L25/06 ,  H04L27/00 ,  H04B1/26

CPC分类号： H04B1/30 ,  H04L25/062 ,  H04L25/064 ,  H04L2027/0095

摘要： A method for removing direct current (DC) interference from a signal received by a communication receiver is provided that removes both a DC offset signal induced by the communication receiver and transmitter. The method includes removing the estimated DC offset from the received signal, correcting a frequency shift in the received signal, estimating a second DC offset signal induced by a source of the received signal, such as a transmitter and removing the estimated second DC offset from the received signal. The receiver DC offset signal is estimated and removed prior to performing a timing carrier offset correction using Barker code manipulation to remove receiver-induced DC offset interference and to sum all Barker chips after effectively multiplying Barker codes to correlate to a Barker sequence unaffected by the receiver DC offset signal.

摘要翻译： 提供一种从通信接收机接收的信号中去除直流（DC）干扰的方法，其消除由通信接收机和发射机引起的DC偏移信号。 该方法包括从接收到的信号中去除估计的DC偏移，校正接收信号中的频移，估计由诸如发射机的接收信号的源引起的第二DC偏移信号，并且从第 接收信号。 在使用Barker码操作执行定时载波偏移校正之前估计和去除接收机DC偏移信号，以消除接收机引起的DC偏移干扰，并且在有效地将Barker码相乘以与接收机不受影响的Barker序列相关之后求和所有Barker码片 直流偏移信号。

公开(公告)号：US07266359B2

公开(公告)日：2007-09-04

申请号：US10963387

申请日：2004-10-12

申请人： Weizhong Chen ,  Robert Molina

发明人： Weizhong Chen ,  Robert Molina

IPC分类号： H04B1/10 ,  G06F3/033

CPC分类号： H04B1/30 ,  H04L25/062 ,  H04L25/064 ,  H04L2027/0095

摘要： A method for removing direct current (DC) interference from a signal received by a communication receiver is provided that removes both a DC offset signal induced by the communication receiver and transmitter. The method includes removing the estimated DC offset from the received signal, correcting a frequency shift in the received signal, estimating a second DC offset signal induced by a source of the received signal, such as a transmitter and removing the estimated second DC offset from the received signal. The receiver DC offset signal is estimated and removed prior to performing a timing carrier offset correction using Barker code manipulation to remove receiver-induced DC offset interference and to sum all Barker chips after effectively multiplying Barker codes to correlate to a Barker sequence unaffected by the receiver DC offset signal.

摘要翻译： 提供一种从通信接收机接收的信号中去除直流（DC）干扰的方法，其消除由通信接收机和发射机引起的DC偏移信号。 该方法包括从接收到的信号中去除估计的DC偏移，校正接收信号中的频移，估计由诸如发射机的接收信号的源引起的第二DC偏移信号，并从第 接收信号。 在使用Barker码操作执行定时载波偏移校正之前估计和去除接收机DC偏移信号，以消除接收机引起的DC偏移干扰，并且在有效地将Barker码相乘以与接收机不受影响的Barker序列相关之后求和所有Barker码片 直流偏移信号。

公开(公告)号：US20090012798A1

公开(公告)日：2009-01-08

申请号：US11772557

申请日：2007-07-02

申请人： James T. McConnell ,  Robert Molina ,  Shaikh Elahi

发明人： James T. McConnell ,  Robert Molina ,  Shaikh Elahi

IPC分类号： G06Q10/00 ,  G06F17/30

CPC分类号： G06Q40/08 ,  G06F16/29 ,  G06Q10/109

摘要： A traveler safety information correlation system is provided. An interactive, real-time mapping tool is combined with traveler location and alert information data sources. Recorded locations corresponding to human assets are overlaid on geographical maps enabling an operator to determine real or near real-time locations of human assets, such as an organizations employees. Traveler location information may obtained from computerized reservation systems, credit card processing systems, cellular and wireless computer networks, and/or other systems. The traveler safety information correlation system may also be used to generate alerts and to deliver information messages to human assets.

摘要翻译： 提供旅行者安全信息相关系统。 交互式实时地图工具与旅行者位置和警报信息数据源相结合。 与人力资产相对应的记录位置覆盖在地理图上，使运营商能够确定人力资产的实时或近实时位置，例如组织的员工。 旅行者位置信息可以从计算机预订系统，信用卡处理系统，蜂窝和无线计算机网络和/或其他系统获得。 旅行者安全信息相关系统还可用于产生警报并向人类资产传递信息消息。