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1. 发明授权

US08242785B2 System and method for detecting anomalies along telecommunication lines 有权
标题翻译：用于检测电信线路异常的系统和方法
公开(公告)号：US08242785B2
公开(公告)日：2012-08-14
申请号：US12267273
申请日：2008-11-07
申请人： Gary Hunt , Fred Chu , Lee T. Gusler, Jr.
发明人： Gary Hunt , Fred Chu , Lee T. Gusler, Jr.
IPC分类号： G01R31/11
CPC分类号： H04B3/238 , H04M3/002 , H04M3/085 , H04M3/28
摘要： An anomaly detection system comprises an echo canceler and anomaly detection logic. The echo canceler has a plurality of taps respectively associated with a plurality of tap coefficients. The anomaly detection logic is configured to determine a difference between a new tap coefficient associated with one of the taps and a previous tap coefficient associated with the one tap. The anomaly detection logic is configured to perform a comparison between the difference and a threshold and to detect an anomaly along a telecommunication line based on the comparison.
摘要翻译：异常检测系统包括回波消除器和异常检测逻辑。回波消除器具有分别与多个抽头系数相关联的多个抽头。异常检测逻辑被配置为确定与抽头之一相关联的新抽头系数与与一次抽头相关联的先前抽头系数之间的差。异常检测逻辑被配置为执行差异和阈值之间的比较，并且基于该比较来检测沿着电信线路的异常。

2. 发明授权

US07774584B2 Discrete multi-tone (DMT) system and method that communicates a data pump data stream between a general purpose CPU and a DSP via a buffering scheme 有权
标题翻译：通过缓冲方案在通用CPU和DSP之间传送数据泵数据流的离散多音（DMT）系统和方法
公开(公告)号：US07774584B2
公开(公告)日：2010-08-10
申请号：US11769376
申请日：2007-06-27
申请人： Charles E. Polk, Jr. , Lee T. Gusler , Patrick J. Quirk , Ronald M. Zuckerman , Joe L. Wilson, Jr.
发明人： Charles E. Polk, Jr. , Lee T. Gusler , Patrick J. Quirk , Ronald M. Zuckerman , Joe L. Wilson, Jr.
IPC分类号： G06F9/30
CPC分类号： H04L12/66 , H04L25/03012 , H04L25/03159 , H04L2025/03414
摘要： The apparatus and method herein splits the function of a digital subscriber line (DSL) modem data pump between a digital signal processor (DSP 106) and a general purpose host central processing unit (CPU 102). The DSP (106) handles all front end data pump processing such as interface to an analog front end (108 and 110), FFT processing, FEQ processing, QAM decoding, and bit formatting. The host CPU (102) handles all back end data pump processing such as DMT tone deordering, data deinterleaving, error detection and correcting, bit descrambling, CRC processing, and the like. In order to enable the DSP (106) and the CPU (102) to communicate with each other effectively, buffers (132) under the control of specialized buffer management methodology (FIG. 4) are used.
摘要翻译：这里的装置和方法将数字用户线（DSL）调制解调器数据泵的功能分解在数字信号处理器（DSP 106）和通用主机中央处理单元（CPU 102）之间。 DSP（106）处理所有前端数据泵处理，例如与模拟前端（108和110）的接口，FFT处理，FEQ处理，QAM解码和位格式化。主机CPU（102）处理诸如DMT音调解码，数据去交织，错误检测和校正，位解扰，CRC处理等所有后端数据泵处理。为了使DSP（106）和CPU（102）能够有效地通信，使用在专用缓冲器管理方法（图4）的控制下的缓冲器（132）。

3. 发明授权

US5809085A Apparatus and method for detecting and discriminating various signal types in the presence of impulse distortions 失效
标题翻译：在存在脉冲失真的情况下检测和识别各种信号类型的装置和方法
公开(公告)号：US5809085A
公开(公告)日：1998-09-15
申请号：US496048
申请日：1995-06-28
申请人： Richard L. Goodson , Mickey C. Rushing , Gary D. Hunt , Lee T. Gusler, Jr.
发明人： Richard L. Goodson , Mickey C. Rushing , Gary D. Hunt , Lee T. Gusler, Jr.
IPC分类号： H03D1/06 , H03D1/02
CPC分类号： H03D1/06
摘要： An apparatus and method are provided for a data communications device, such as a modem (100, 101) or facsimile machine, to detect and discriminate various amplitude modulated signals, such as an ANS signal of the ITU V.25 protocol and an ANSam signal of the ITU V.8 protocol, which may be subject to impulse distortions (FIG. 5B). The apparatus and method embodiments band pass filter (204) an incoming signal at a first frequency, and dynamically limit (208) any impulse distortions of the incoming signal to a limit threshold (211). The limit thresholds may be dynamically determined by rectifying (209) and low pass filtering (210) the band pass filtered signal to determine a low frequency average magnitude level of the incoming signal, with the limit thresholds set as a predetermined variance from this low frequency average magnitude level. The various frequency components of the amplitude modulated signal may then be discriminated by rectifying (215) and band pass filtering (217) at a second frequency, such as the frequency of the amplitude modulating component. Various detectors (205, 206) then determine the type of information present in the incoming signal, such as whether the signal is an ANS signal or an ANSam signal.
摘要翻译：为诸如调制解调器（100,101）或传真机之类的数据通信设备提供了一种用于检测和鉴别各种幅度调制信号（诸如ITU V.25协议的ANS信号）和ANSam信号的装置和方法的ITU V.8协议，可能会受到脉冲失真（图5B）的影响。装置和方法实施例以第一频率对输入信号进行带通滤波器（204），并且将输入信号的任何脉冲失真动态地限制（208）到极限阈值（211）。极限阈值可以通过整流（209）和低通滤波（210）带通滤波信号来动态地确定，以确定输入信号的低频平均幅度电平，其中限制阈值被设置为与该低频率的预定方差平均幅度级别。然后可以通过在诸如振幅调制分量的频率的第二频率进行整流（215）和带通滤波（217）来鉴别幅度调制信号的各种频率分量。各种检测器（205,206）然后确定输入信号中存在的信息的类型，诸如信号是ANS信号还是ANSam信号。

4. 发明授权

US08767921B2 System and method for detecting anomalies along telecommunication lines 有权
标题翻译：用于检测电信线路异常的系统和方法
公开(公告)号：US08767921B2
公开(公告)日：2014-07-01
申请号：US13546417
申请日：2012-07-11
申请人： Gary Hunt , Fred Chu , Lee T. Gusler, Jr.
发明人： Gary Hunt , Fred Chu , Lee T. Gusler, Jr.
IPC分类号： H04M1/24 , H04M3/08 , H04M3/22
CPC分类号： H04B3/238 , H04M3/002 , H04M3/085 , H04M3/28
摘要： An anomaly detection system comprises an echo canceler and anomaly detection logic. The echo canceler has a plurality of taps respectively associated with a plurality of tap coefficients. The anomaly detection logic is configured to determine a difference between a new tap coefficient associated with one of the taps and a previous tap coefficient associated with the one tap. The anomaly detection logic is configured to perform a comparison between the difference and a threshold and to detect an anomaly along a telecommunication line based on the comparison.
摘要翻译：异常检测系统包括回波消除器和异常检测逻辑。回波消除器具有分别与多个抽头系数相关联的多个抽头。异常检测逻辑被配置为确定与抽头之一相关联的新抽头系数与与一次抽头相关联的先前抽头系数之间的差。异常检测逻辑被配置为执行差异和阈值之间的比较，并且基于该比较来检测沿着电信线路的异常。

5. 发明申请

US20120281818A1 SYSTEM AND METHOD FOR DETECTING ANOMALIES ALONG TELECOMMUNICATION LINES 有权
标题翻译：用于检测电信线路异常的系统和方法
公开(公告)号：US20120281818A1
公开(公告)日：2012-11-08
申请号：US13546417
申请日：2012-07-11
申请人： Gary Hunt , Fred Chu , Lee T. Gusler, JR.
发明人： Gary Hunt , Fred Chu , Lee T. Gusler, JR.
IPC分类号： H04M1/24
CPC分类号： H04B3/238 , H04M3/002 , H04M3/085 , H04M3/28
摘要： An anomaly detection system comprises an echo canceler and anomaly detection logic. The echo canceler has a plurality of taps respectively associated with a plurality of tap coefficients. The anomaly detection logic is configured to determine a difference between a new tap coefficient associated with one of the taps and a previous tap coefficient associated with the one tap. The anomaly detection logic is configured to perform a comparison between the difference and a threshold and to detect an anomaly along a telecommunication line based on the comparison.
摘要翻译：异常检测系统包括回波消除器和异常检测逻辑。回波消除器具有分别与多个抽头系数相关联的多个抽头。异常检测逻辑被配置为确定与抽头之一相关联的新抽头系数与与一次抽头相关联的先前抽头系数之间的差。异常检测逻辑被配置为执行差异和阈值之间的比较，并且基于该比较来检测沿着电信线路的异常。

6. 发明授权

US06892339B1 Discrete multi-tone (DMT) system and method that communicates a data pump data stream between a general purpose CPU and a DSP via a buffering scheme 有权
标题翻译：通过缓冲方案在通用CPU和DSP之间传送数据泵数据流的离散多音（DMT）系统和方法
公开(公告)号：US06892339B1
公开(公告)日：2005-05-10
申请号：US09398707
申请日：1999-09-20
申请人： Charles E. Polk, Jr. , Lee T. Gusler , Patrick J. Quirk , Ronald M. Zuckerman , Joe L. Wilson, Jr.
发明人： Charles E. Polk, Jr. , Lee T. Gusler , Patrick J. Quirk , Ronald M. Zuckerman , Joe L. Wilson, Jr.
IPC分类号： G06F11/00 , G06F11/30 , G08C25/00 , H03M13/00 , H04B1/38 , H04L1/00 , H04L27/26
CPC分类号： H04L1/0071 , H04L1/0045 , H04L1/08 , H04L27/2626 , H04L2001/0094
摘要： The apparatus and method herein splits the function of a digital subscriber line (DSL) modem data pump between a digital signal processor (DSP 106) and a general purpose host central processing unit (CPU 102). The DSP (106) handles all front end data pump processing such as interface to an analog front end (108 and 110), FFT processing, FEQ processing, QAM decoding, and bit formatting. The host CPU (102) handles all back end data pump processing such as DMT tone deordering, data deinterleaving, error detection and correcting, bit descrambling, CRC processing, and the like. In order to enable the DSP (106) and the CPU (102) to communicate with each other effectively, buffers (132) under the control of specialized buffer management methodology (FIG. 4) are used.
摘要翻译：这里的装置和方法将数字用户线（DSL）调制解调器数据泵的功能分解在数字信号处理器（DSP 106）和通用主机中央处理单元（CPU 102）之间。 DSP（106）处理所有前端数据泵处理，例如与模拟前端（108和110）的接口，FFT处理，FEQ处理，QAM解码和位格式化。主机CPU（102）处理诸如DMT音调解码，数据去交织，错误检测和校正，位解扰，CRC处理等所有后端数据泵处理。为了使DSP（106）和CPU（102）能够有效地通信，使用在专用缓冲器管理方法（图4）的控制下的缓冲器（132）。

7. 发明授权

US07460498B2 System and method for detecting anomalies along telecommunication lines 有权
标题翻译：用于检测电信线路异常的系统和方法
公开(公告)号：US07460498B2
公开(公告)日：2008-12-02
申请号：US10727411
申请日：2003-12-04
申请人： Gary Hunt , Fred Chu , Lee T. Gusler, Jr.
发明人： Gary Hunt , Fred Chu , Lee T. Gusler, Jr.
IPC分类号： H04B3/20
CPC分类号： H04B3/238 , H04M3/002 , H04M3/085 , H04M3/28
摘要： An anomaly detection system comprises an echo canceler and anomaly detection logic. The echo canceler has a plurality of taps respectively associated with a plurality of tap coefficients. The anomaly detection logic is configured to determine a difference between a new tap coefficient associated with one of the taps and a previous tap coefficient associated with the one tap. The anomaly detection logic is configured to perform a comparison between the difference and a threshold and to detect an anomaly along a telecommunication line based on the comparison.
摘要翻译：异常检测系统包括回波消除器和异常检测逻辑。回波消除器具有分别与多个抽头系数相关联的多个抽头。异常检测逻辑被配置为确定与抽头之一相关联的新抽头系数与与一次抽头相关联的先前抽头系数之间的差。异常检测逻辑被配置为执行差异和阈值之间的比较，并且基于该比较来检测沿着电信线路的异常。

8. 发明授权

US5715238A Apparatus and method for detecting a loss of a telecommunications channel connection 失效
标题翻译：用于检测电信信道连接丢失的装置和方法
公开(公告)号：US5715238A
公开(公告)日：1998-02-03
申请号：US575200
申请日：1995-12-20
申请人： Orlyn C. Hall, Jr. , Lee T. Gusler, Jr.
发明人： Orlyn C. Hall, Jr. , Lee T. Gusler, Jr.
IPC分类号： H04B3/23 , H04J3/14 , H04L1/24
CPC分类号： H04J3/14 , H04B3/23 , H04L1/24
摘要： An apparatus and method are provided for a data communications device (100), such as a modem, to detect the loss of a telecommunications channel connection, in the absence of other notification signals. The apparatus and method embodiments of the invention utilize a near end echo in full duplex transmission, and compare (630) periodically sampled transmit data (610), preferably composed of an n-bit sequence, with sampled values of received data (620), to determine the occurrence of a match between the data received and the data transmitted (640). If a predetermined number of consecutive matches have occurred (670), then a loss of a telecommunications channel connection has occurred and is detected (680). Preferrably, the apparatus is embodied in a processor (108) or a processor (107) coupled with a digital signal processor (106), which are within the data communications device (100).
摘要翻译：在没有其他通知信号的情况下，为诸如调制解调器的数据通信设备（100）提供用于检测电信信道连接的丢失的装置和方法。本发明的装置和方法实施例利用全双工传输中的近端回波，并将优选由n位序列组成的周期性采样的发射数据（610）与接收数据（620）的采样值进行比较（630）以确定所接收的数据与所发送的数据之间的匹配的发生（640）。如果发生了预定数量的连续匹配（670），则发生电信信道连接的丢失并被检测到（680）。优选地，该装置体现在与数据通信设备（100）内的数字信号处理器（106）耦合的处理器（108）或处理器（107）中。

9. 发明授权

US5654982A Apparatus and method for determining carrier frequency offset and timing frequency offset for data transmission and reception 失效
标题翻译：用于确定数据传输和接收的载波频率偏移和定时频率偏移的装置和方法
公开(公告)号：US5654982A
公开(公告)日：1997-08-05
申请号：US496640
申请日：1995-06-29
申请人： Richard L. Goodson , Mickey C. Rushing , Gary D. Hunt , Lee T. Gusler
发明人： Richard L. Goodson , Mickey C. Rushing , Gary D. Hunt , Lee T. Gusler
IPC分类号： H04L7/027 , H04L7/08 , H04L27/38 , H04B1/38
CPC分类号： H04L27/38 , H04L7/027 , H04L7/08
摘要： An apparatus and method for a data communications device such as a modem (100, 101) to determine carrier frequency offset and timing frequency offset, from a received probe signal. The various embodiments utilizing a processor (108) or digital signal processor (106) receive first and second sets of a transmitted probe signal having known characteristics, and determine a set of phase differences for the tones comprising the probe signal (702, 703, 704, 705). The various method and apparatus embodiments then form a linear approximation from the set of phase differences to determine the carrier frequency offset and the timing frequency offset (706). In the preferred embodiments, the linear approximation is formed from a minimization of a least square error estimate proportionally weighted by either signal to noise ratios or normalized, average amplitudes of the set of tones of the received probe signal.
摘要翻译：一种用于诸如调制解调器（100,101）的数据通信设备的装置和方法，用于从接收到的探测信号确定载波频率偏移和定时频率偏移。利用处理器（108）或数字信号处理器（106）的各种实施例接收具有已知特性的已发射探测信号的第一和第二组，并且确定包含探测信号（702,703,704）的音调的一组相位差，705）。各种方法和装置实施例然后从相位差集合形成线性近似以确定载波频率偏移和定时频率偏移（706）。在优选实施例中，由最小二乘误差估计的最小化形成线性近似，该最小二乘误差估计是由接收的探测信号的信噪比或归一化的平均振幅组合加权的。

10. 发明申请

US20090067353A1 SYSTEM AND METHOD FOR DETECTING ANOMALIES ALONG TELECOMMUNICATION LINES 有权
标题翻译：用于检测电信线路异常的系统和方法
公开(公告)号：US20090067353A1
公开(公告)日：2009-03-12
申请号：US12267273
申请日：2008-11-07
申请人： Gary Hunt , Fred Chu , Lee T. Gusler, JR.
发明人： Gary Hunt , Fred Chu , Lee T. Gusler, JR.
IPC分类号： H04B3/20
CPC分类号： H04B3/238 , H04M3/002 , H04M3/085 , H04M3/28
摘要： An anomaly detection system comprises an echo canceler and anomaly detection logic. The echo canceler has a plurality of taps respectively associated with a plurality of tap coefficients. The anomaly detection logic is configured to determine a difference between a new tap coefficient associated with one of the taps and a previous tap coefficient associated with the one tap. The anomaly detection logic is configured to perform a comparison between the difference and a threshold and to detect an anomaly along a telecommunication line based on the comparison.
摘要翻译：异常检测系统包括回波消除器和异常检测逻辑。回波消除器具有分别与多个抽头系数相关联的多个抽头。异常检测逻辑被配置为确定与抽头之一相关联的新抽头系数与与一次抽头相关联的先前抽头系数之间的差。异常检测逻辑被配置为执行差异和阈值之间的比较，并且基于该比较来检测沿着电信线路的异常。

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