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1. 发明授权

US08804793B2 Method and apparatus for fast link recovery 有权
标题翻译：快速链路恢复的方法和装置
公开(公告)号：US08804793B2
公开(公告)日：2014-08-12
申请号：US12857080
申请日：2010-08-16
申请人： Jiangfeng Wu , Jose Tellado , John Dring , Nima Ferdosi
发明人： Jiangfeng Wu , Jose Tellado , John Dring , Nima Ferdosi
IPC分类号： H04B1/38
CPC分类号： H04L25/03343 , H04L1/0014 , H04L1/0025 , H04L1/004 , H04L2025/03802
摘要： Embodiments of methods and apparatus for fast link recover are disclosed. One method includes sensing a link quality failure of a link between a receiver and a transmitter. If a link quality failure is sensed, then the receiver selects new pre-coder settings for the transmitter. The receiver communicates the new pre-coder settings to the transmitter. The transmitter applies the new pre-coder settings. The receiver computes its equalizer settings based on the new pre-coder settings of the transmitter. One apparatus or transceiver includes a means for determining a link quality failure of a link between the transceiver and a link partner transceiver. The transceiver selects new pre-coder settings for the link partner transceiver if a link quality failure is sensed. Additionally, the transceiver communicates the new pre-coder settings to the link partner transceiver, and computes its equalizer settings based on the new pre-coder settings of the link partner transceiver.
摘要翻译：公开了用于快速链路恢复的方法和装置的实施例。一种方法包括感测接收机和发射机之间的链路的链路质量故障。如果感测到链路质量故障，则接收机为发射机选择新的预编码器设置。接收机将新的预编码器设置传送给发射机。发射机应用新的预编码器设置。接收机根据发射机的新的预编码器设置计算其均衡器设置。一种装置或收发器包括用于确定收发器和链路伙伴收发器之间的链路的链路质量故障的装置。如果感测到链路质量故障，收发器将为链路伙伴收发器选择新的预编码器设置。此外，收发器将新的预编码器设置传送到链路伙伴收发器，并且基于链路伙伴收发器的新的预编码器设置来计算其均衡器设置。

2. 发明申请

US20120014420A1 Method and Apparatus for Fast Link Recovery 有权
标题翻译：快速链路恢复的方法和装置
公开(公告)号：US20120014420A1
公开(公告)日：2012-01-19
申请号：US12857080
申请日：2010-08-16
申请人： Jiangfeng Wu , Jose Tellado , John Dring , Nima Ferdosi
发明人： Jiangfeng Wu , Jose Tellado , John Dring , Nima Ferdosi
IPC分类号： H04L5/16 , H04B17/00
CPC分类号： H04L25/03343 , H04L1/0014 , H04L1/0025 , H04L1/004 , H04L2025/03802
摘要： Embodiments of methods and apparatus for fast link recover are disclosed. One method includes sensing a link quality failure of a link between a receiver and a transmitter. If a link quality failure is sensed, then the receiver selects new pre-coder settings for the transmitter. The receiver communicates the new pre-coder settings to the transmitter. The transmitter applies the new pre-coder settings. The receiver computes its equalizer settings based on the new pre-coder settings of the transmitter. One apparatus or transceiver includes a means for determining a link quality failure of a link between the transceiver and a link partner transceiver. The transceiver selects new pre-coder settings for the link partner transceiver if a link quality failure is sensed. Additionally, the transceiver communicates the new pre-coder settings to the link partner transceiver, and computes its equalizer settings based on the new pre-coder settings of the link partner transceiver.
摘要翻译：公开了用于快速链路恢复的方法和装置的实施例。一种方法包括感测接收机和发射机之间的链路的链路质量故障。如果感测到链路质量故障，则接收机为发射机选择新的预编码器设置。接收机将新的预编码器设置传送给发射机。发射机应用新的预编码器设置。接收机根据发射机的新的预编码器设置计算其均衡器设置。一种装置或收发器包括用于确定收发器和链路伙伴收发器之间的链路的链路质量故障的装置。如果感测到链路质量故障，收发器将为链路伙伴收发器选择新的预编码器设置。此外，收发器将新的预编码器设置传送到链路伙伴收发器，并且基于链路伙伴收发器的新的预编码器设置来计算其均衡器设置。

3. 发明授权

US11026632B2 Determining respiratory rate via impedance pneumography 有权
公开(公告)号：US11026632B2
公开(公告)日：2021-06-08
申请号：US13452632
申请日：2012-04-20
申请人： Ravi Narasimhan , Nima Ferdosi
发明人： Ravi Narasimhan , Nima Ferdosi
IPC分类号： A61B5/08 , A61B5/00
摘要： A method and system for determining a respiratory rate of a user are disclosed. The method comprises measuring a differential voltage across first and second electrodes of a sensor device coupled to the user. The method includes sampling the differential voltage using an analog-to-digital converter to produce an output signal. The method includes processing the output signal to detect a breath of the user based on a positive voltage transition through a midpoint, wherein the breath of the user is utilized to determine the respiratory rate of the user.

4. 发明授权

US09814405B2 R-R interval measurement using multi-rate ECG processing 有权
公开(公告)号：US09814405B2
公开(公告)日：2017-11-14
申请号：US13607160
申请日：2012-09-07
申请人： Yun Yang , Ravi Narasimhan , Nima Ferdosi
发明人： Yun Yang , Ravi Narasimhan , Nima Ferdosi
IPC分类号： A61B5/0456 , A61B5/00 , A61B5/04
CPC分类号： A61B5/0456 , A61B5/0006 , A61B5/04017 , A61B5/7232 , A61B2560/0209
摘要： A method and system for R-R interval measurement of a user are disclosed. In a first aspect, the method comprises detecting an electrocardiogram (ECG) signal of the user. The method includes performing QRS peak detection on the ECG signal to obtain a low resolution peak and searching near the low resolution peak for a high resolution peak. The method includes calculating the R-R interval measurement based upon the high resolution peak. In a second aspect, a wireless sensor device comprises a processor and a memory device coupled to the processor, wherein the memory device includes an application that, when executed by the processor, causes the processor to carry out the steps of the method.

5. 发明授权

US11076810B2 Continuous assessment of ECG signal quality 有权
公开(公告)号：US11076810B2
公开(公告)日：2021-08-03
申请号：US13604287
申请日：2012-09-05
申请人： Nima Ferdosi , Ravi Narasimhan
发明人： Nima Ferdosi , Ravi Narasimhan
IPC分类号： A61B5/00 , A61B5/0428 , A61B5/30
摘要： A method and system for assessing an electrocardiogram (ECG) signal quality are disclosed. In a first aspect, the method comprises determining a Kurtosis calculation of the ECG signal and determining whether the Kurtosis calculation satisfies a first threshold to continuously assess the ECG signal quality. In a second aspect, the system comprises a wireless sensor device coupled to a user via at least one electrode, wherein the wireless sensor device includes a processor and a memory device coupled to the processor, wherein the memory device stores an application which, when executed by the processor, causes the processor to determine a Kurtosis calculation of the ECG signal and to determine whether the Kurtosis calculation satisfies a first threshold to continuously assess the ECG signal quality.

6. 发明授权

US09035794B2 Posture calibration for activity monitoring 有权
标题翻译：姿态校准用于活动监控
公开(公告)号：US09035794B2
公开(公告)日：2015-05-19
申请号：US13548059
申请日：2012-07-12
申请人： Ravi Narasimhan , Nima Ferdosi
发明人： Ravi Narasimhan , Nima Ferdosi
IPC分类号： G08B29/00 , G01C25/00 , G08C17/02 , A61B5/00 , A61B5/11 , G01N33/48 , A61N1/00 , G06T15/00 , A61B5/103
CPC分类号： G01C25/00 , A61B5/0002 , A61B5/1116 , A61B5/1118 , G01C25/005 , G08C17/02
摘要： A method and system for activity monitoring of a user are disclosed. In a first aspect, the method comprises calibrating posture by the user to determine a calibration vector. The method includes validating the calibration vector by comparing an anteroposterior axis to a threshold, wherein activity of the user is monitored using the validated calibration vector. In a second aspect, a wireless sensor device comprises a processor and a memory device coupled to the processor, wherein the memory device includes an application that, when executed by the processor, causes the processor to receive a posture calibration request from the user and to determine a calibration vector based on the received request. The application, when executed by the processor, further causes the processor to validate the calibration vector by comparing an anteroposterior axis to a threshold, wherein activity of the user is monitored using the validated calibration vector.
摘要翻译：公开了一种用于用户的活动监视的方法和系统。在第一方面，该方法包括用户校准姿势以确定校准矢量。该方法包括通过将前后轴与阈值进行比较来验证校准矢量，其中使用验证的校准向量来监视用户的活动。在第二方面，无线传感器设备包括处理器和耦合到处理器的存储器件，其中所述存储器设备包括应用，所述应用在被所述处理器执行时使得所述处理器从所述用户接收姿势校准请求，并且基于接收的请求确定校准矢量。该应用在由处理器执行时进一步使处理器通过将前后轴与阈值进行比较来验证校准矢量，其中使用经验证的校准向量来监视用户的活动。

7. 发明授权

US07623630B2 Double-ended line probing (DELP) for DSL systems 失效
标题翻译： DSL系统的双端线路探测（DELP）
公开(公告)号：US07623630B2
公开(公告)日：2009-11-24
申请号：US11101945
申请日：2005-04-08
申请人： Nima Ferdosi , Jalil Kamali
发明人： Nima Ferdosi , Jalil Kamali
IPC分类号： H04M1/24 , H04M3/08 , H04M3/22
CPC分类号： H04M3/085 , H04M3/2209 , H04M3/306
摘要： Double-ended line probing (DELP) techniques are described herein that enable a loop configuration to be identified based on mathematically simple error functions, which are both time-efficient and less sensitive to measurement errors. A DELP algorithm uses readily available data about the channel that is generated prior to the modem operation (e.g., theoretical loop models) and other available data (e.g., that provided by loop diagnostic modules) to estimate the loop configuration including the line length and gauge, as well as the number of bridge taps and their gauges, lengths, and locations.
摘要翻译：本文描述了双端线路探测（DELP）技术，其使得能够基于数学上简单的误差函数来识别环路配置，这对于测量误差是时间有效的和较不敏感的。 DELP算法使用关于在调制解调器操作之前生成的信道（例如，理论环路模型）和其他可用数据（例如，由循环诊断模块提供的）的估计包括线路长度和量规的环路配置的可用数据，以及桥式水龙头及其量规，长度和位置的数量。

8. 发明申请

US20060227940A1 Double-ended line probing (DELP) for DSL systems 失效
公开(公告)号：US20060227940A1
公开(公告)日：2006-10-12
申请号：US11101945
申请日：2005-04-08
申请人： Nima Ferdosi , Jalil Kamali
发明人： Nima Ferdosi , Jalil Kamali
IPC分类号： H04M1/24 , H04M3/08 , H04M3/22
CPC分类号： H04M3/085 , H04M3/2209 , H04M3/306
摘要： Double-ended line probing (DELP) techniques are described herein that enable a loop configuration to be identified based on mathematically simple error functions, which are both time-efficient and less sensitive to measurement errors. A DELP algorithm uses readily available data about the channel that is generated prior to the modem operation (e.g., theoretical loop models) and other available data (e.g., that provided by loop diagnostic modules) to estimate the loop configuration including the line length and gauge, as well as the number of bridge taps and their gauges, lengths, and locations.

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