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    Non-Invasive Measurement of Second Heart Sound Components
    1.
    发明申请
    Non-Invasive Measurement of Second Heart Sound Components 有权
    第二心音组件的非侵入性测量

    公开(公告)号：US20080091115A1

    公开(公告)日：2008-04-17

    申请号：US11578462

    申请日：2005-04-15

    申请人： Boris Popov ,  Victor Lanzo ,  Rajeev Agarwal

    发明人： Boris Popov ,  Victor Lanzo ,  Rajeev Agarwal

    IPC分类号： A61B5/02

    CPC分类号： A61B5/021 ,  A61B5/0456 ,  A61B5/0476 ,  A61B7/04

    摘要： A method and apparatus for estimating a location of pulmonary and aortic components of second heart sounds of a patient over an interval. The method comprises the steps of producing an electronic representation of heart sounds of the patient over the interval, identifying at least one second heart sound in the interval using the electronic representation, for each identified second heart sound generating an estimated value for a location of the aortic component and the pulmonary component. There is also included a method for using the estimated location of the aortic component and the pulmonary component for estimation of the blood pressure in the pulmonary artery of a patient.

    摘要翻译： 一种用于估计患者的间隔的第二心音的肺和主动脉分量的位置的方法和装置。 该方法包括以下步骤：通过间隔产生患者的心脏声音的电子表示，使用电子表示识别间隔中的至少一个第二心音，为每个识别的第二心音产生一个估计值 主动脉成分和肺部分。 还包括使用估计主动脉部分的位置和肺部分用于估计患者肺动脉血压的方法。

    PULMONARY ARTERY PRESSURE ESTIMATOR
    2.
    发明申请
    PULMONARY ARTERY PRESSURE ESTIMATOR 审中-公开
    脉动压力估计

    公开(公告)号：US20120071767A1

    公开(公告)日：2012-03-22

    申请号：US13053202

    申请日：2011-03-21

    申请人： Boris Popov ,  Victor F. Lanzo ,  Rajeev Agarwal

    发明人： Boris Popov ,  Victor F. Lanzo ,  Rajeev Agarwal

    IPC分类号： A61B5/021

    CPC分类号： A61B5/021 ,  A61B5/0456 ,  A61B5/0476 ,  A61B7/04

    摘要： A pulmonary artery pressure estimator attaches a plurality of acoustic sensors to a patient so as to measure a second heart sound. The sensors are arranged so that an A2 component of the second heart sound is maximized from at least one of the sensors and a P2 component is maximized from at least another one of the sensors. Electrodes are also attached to the patient so as to measure a cardiac interval. A splitting interval is derived from the A2 and P2 components, which is normalized by the cardiac interval. The normalized splitting interval provides an estimation of the pulmonary artery pressure (PAP).

    摘要翻译： 肺动脉压力估计器将多个声学传感器附接到患者以测量第二心音。 传感器布置成使得第二心音的A2分量从至少一个传感器最大化，并且P2分量从至少另一个传感器最大化。 电极也附接到患者以测量心脏间隔。 从A2和P2分量导出分割间隔，其通过心脏间隔进行归一化。 归一化分裂间隔提供了肺动脉压（PAP）的估计。

    Non-invasive measurement of second heart sound components
    3.
    发明授权
    Non-invasive measurement of second heart sound components 有权
    非侵入性测量第二心音组件

    公开(公告)号：US07909772B2

    公开(公告)日：2011-03-22

    申请号：US11578462

    申请日：2005-04-15

    申请人： Boris Popov ,  Victor F. Lanzo ,  Rajeev Agarwal

    发明人： Boris Popov ,  Victor F. Lanzo ,  Rajeev Agarwal

    IPC分类号： A61B5/02

    CPC分类号： A61B5/021 ,  A61B5/0456 ,  A61B5/0476 ,  A61B7/04

    摘要： A method and apparatus for estimating a location of pulmonary and aortic components of second heart sounds of a patient over an interval. The method comprises the steps of producing an electronic representation of heart sounds of the patient over the interval, identifying at least one second heart sound in the interval using the electronic representation, for each identified second heart sound generating an estimated value for a location of the aortic component and the pulmonary component. There is also included a method for using the estimated location of the aortic component and the pulmonary component for estimation of the blood pressure in the pulmonary artery of a patient.

    摘要翻译： 一种用于估计患者的间隔的第二心音的肺和主动脉分量的位置的方法和装置。 该方法包括以下步骤：通过间隔产生患者的心脏声音的电子表示，使用电子表示识别间隔中的至少一个第二心音，为每个识别的第二心音产生一个估计值 主动脉成分和肺部分。 还包括使用估计主动脉部分的位置和肺部分用于估计患者肺动脉血压的方法。

    Method for packet scheduling and radio resource allocation in a wireless communication system
    4.
    发明授权
    Method for packet scheduling and radio resource allocation in a wireless communication system 有权
    无线通信系统中的分组调度和无线资源分配方法

    公开(公告)号：US06987738B2

    公开(公告)日：2006-01-17

    申请号：US09759846

    申请日：2001-01-12

    申请人： Vijay G. Subramanian ,  Rajeev Agarwal ,  Richard J. La

    发明人： Vijay G. Subramanian ,  Rajeev Agarwal ,  Richard J. La

    IPC分类号： H04L12/26

    CPC分类号： H04L47/10 ,  H04L47/14 ,  H04L47/50 ,  H04L47/56 ,  H04L47/626 ,  H04W24/00 ,  H04W28/22 ,  H04W72/04 ,  H04W72/1226 ,  Y02D70/00

    摘要： A method of performing packet level transmission scheduling in a communications systems including a plurality of cells, each cell including a base station and plurarity of mobile stations. The method performs scheduling while considering radio resource allocation at the wireless access node. In a schedule plan phase of the method, average power and average effective data rate are determined for all mobile stations in the system. In addition, the planned fractions of frames ρ that each mobile in the system will transmit is determined so that resources are allocated fairly. In the actual schedule phase of the method, current power and effective data rate values are compared to the average power values. This information along with the ρ values is used to determine the actual schedule of packet transmissions for all mobiles in a particular cell.

    摘要翻译： 一种在包括多个小区的通信系统中执行分组级传输调度的方法，每个小区包括基站和多个移动台。 该方法在考虑无线接入节点处的无线资源分配的同时执行调度。 在方法的进度计划阶段，为系统中的所有移动台确定平均功率和平均有效数据速率。 此外，确定系统中每个移动台将传送的帧的计划分数，使得资源被公平分配。 在该方法的实际进度阶段，将当前功率和有效数据速率值与平均功率值进行比较。 该信息连同rho值一起用于确定特定小区中所有移动台的分组传输的实际调度。

    Artifact detection in encephalogram data using an event model
    7.
    发明授权
    Artifact detection in encephalogram data using an event model 有权
    使用事件模型在脑电图数据中进行神器检测

    公开(公告)号：US06591132B2

    公开(公告)日：2003-07-08

    申请号：US09996587

    申请日：2001-11-30

    申请人： Jean Gotman ,  YunHua Wang ,  Rajeev Agarwal ,  Danny Flanagan

    发明人： Jean Gotman ,  YunHua Wang ,  Rajeev Agarwal ,  Danny Flanagan

    IPC分类号： A61B504

    CPC分类号： A61B5/04012 ,  A61B5/0476 ,  A61B5/4094 ,  Y10S128/92 ,  Y10S128/923

    摘要： A machine-readable storage medium containing a program element for execution by a computing device for performing spike and artifact detection in EG data. The program element comprises a spike detection module for processing EG data to detect spikes. Each spike is a candidate having a likelihood of being related to a physiological event of interest. The program element further comprises an artifact detection module. The artifact detection module is operative to compute respective models of events manifested by the respective spikes detected by the spike detection module, to use the computed models to determine which spikes among the spikes detected by the spike detection module have a high likelihood of being artifacts, to filter the spikes detected by the spike detection module on the basis of the computed models to produce filtered data and to output the filtered data.

    摘要翻译： 一种机器可读存储介质，其包含用于在EG数据中执行尖峰和伪像检测的用于由计算设备执行的程序元素。 程序元件包括用于处理EG数据以检测尖峰的尖峰检测模块。 每个尖峰是具有与感兴趣的生理事件相关的可能性的候选者。 程序元件还包括伪影检测模块。 伪像检测模块可操作以计算由尖峰检测模块检测到的相应尖峰所表现的事件的相应模型，以使用所计算的模型来确定由尖峰检测模块检测到的尖峰中的尖峰具有很高的伪像可能性， 基于所计算的模型来过滤由尖峰检测模块检测到的峰值，以产生滤波数据并输出滤波数据。

    Method and apparatus for network access control with implicit ranging and dynamically assigned time slots
    9.
    发明授权
    Method and apparatus for network access control with implicit ranging and dynamically assigned time slots 失效
    用于具有隐式测距和动态分配时隙的网络访问控制的方法和装置

    公开(公告)号：US5802061A

    公开(公告)日：1998-09-01

    申请号：US545501

    申请日：1995-10-19

    申请人： Rajeev Agarwal

    发明人： Rajeev Agarwal

    IPC分类号： H04J3/06 ,  H04L12/44 ,  H04L12/46 ,  H04J3/02

    CPC分类号： H04L12/44 ,  H04J3/0682 ,  H04L12/46

    摘要： A time division multiple access protocol that prevents data collisions and that maximizes bandwidth utilization in a long distance communications network by performing implicit ranging and dynamic assignment of time slots. The propagation delay that would result when data travels from an end station to the hub is determined using an implicit ranging method. Time slots in a synchronization signal are assigned to end stations based upon the requests from end stations and the availability of time slots. Each end station is notified of its assigned time slot(s) and propagation delay and is provided with a timing signal which is the synchronization signal delayed by its propagation delay. Each end station then starts to transmit its data at the beginning of a time duration that is twice its propagation delay before the start of its assigned time slot(s) in its timing signal. Each end station transmits its data for the duration of its assigned time slot(s). The data from each of these end stations travels in a pipe-lined manner through the link toward the hub and arrives at the hub during the assigned time slots in the synchronization signal. Each time slot preferably includes a guard band during which no data is transmitted; the duration of the guard band can be minimized thus resulting in more efficient bandwidth utilization.

    摘要翻译： 一种时分多址协议，可防止数据冲突，并通过执行时隙的隐式测距和动态分配来最大化长途通信网络中的带宽利用率。 使用隐式测距方法确定数据从终端站到集线器时所产生的传播延迟。 基于来自终端站的请求和时隙的可用性，同步信号中的时隙被分配给终端站。 每个终端通知其分配的时隙和传播延迟，并提供定时信号，该定时信号是延迟其传播延迟的同步信号。 然后，每个终端在其定时信号中分配的时隙开始之前，在其传播延迟的两倍的持续时间的开始处开始传输其数据。 每个终端站在其分配的时隙的持续时间内发送其数据。 这些终端站中的每一个的数据以管道方式通过到集线器的链路行进，并在同步信号中的分配时隙期间到达集线器。 每个时隙优选地包括其中不发送数据的保护频带; 保护带的持续时间可以最小化，从而导致更有效的带宽利用。