公开(公告)号：US07130677B2

公开(公告)日：2006-10-31

申请号：US10653000

申请日：2003-08-29

Applicant: Mark L. Brown ,  Shantanu Sarkar

Inventor： Mark L. Brown ,  Shantanu Sarkar

IPC: A61B5/046

CPC classification number: A61B5/726 ,  A61B5/0031 ,  A61B5/046 ,  A61B5/0464 ,  A61N1/3956

Abstract: Methods and apparatus are provided for discriminating high rate polymorphic QRS complexes from high rate monomorphic QRS complexes to increase the specificity of detection of polymorphic VT and VF employing wavelet transform signal processing of the QRS complexes are disclosed. Wavelet transforms are applied to the sampled amplitude values of a sequence of QRS complexes to develop wavelet transform coefficient (WTC) data sets. At least selected ones of the WTC data sets are processed and comparisons are made to determine a wavelet match score. A determination is made as a function of the wavelet match scores of the series of successive QRS complexes that characterizes the most recent QRS complex as more or less likely to signify polymorphic VT or VF.

Abstract translation: 提供方法和装置用于区分来自高速单态QRS复合物的高倍数多态性QRS复合物，以增加使用QRS复合物的小波变换信号处理的多态性VT和VF检测的特异性。 将小波变换应用于QRS复合序列的采样振幅值，以开发小波变换系数（WTC）数据集。 处理至少选定的WTC数据集，并进行比较以确定小波匹配分数。 作为一系列连续QRS复合物的小波匹配分数的函数的确定，其表征最近的QRS复合物或多或少可能表示多态性VT或VF。

公开(公告)号：US08332022B2

公开(公告)日：2012-12-11

申请号：US11534927

申请日：2006-09-25

Applicant: Mark L. Brown ,  Shantanu Sarkar

Inventor： Mark L. Brown ,  Shantanu Sarkar

IPC: A61B5/0245

CPC classification number: A61N1/3622 ,  A61B5/046 ,  A61B5/0464 ,  A61B5/7225 ,  A61B5/726 ,  A61N1/3956

Abstract: Methods and apparatus are provided for discriminating high rate polymorphic QRS complexes from high rate monomorphic QRS complexes to increase the specificity of detection of polymorphic VT and VF employing wavelet transform signal processing of the QRS complexes are disclosed. Wavelet transforms are applied to the sampled amplitude values of a sequence of QRS complexes to develop wavelet transform coefficient (WTC) data sets. At least selected ones of the WTC data sets are processed and comparisons are made to determine a wavelet match score. A determination is made as a function of the wavelet match scores of the series of successive QRS complexes that characterizes the most recent QRS complex as more or less likely to signify polymorphic VT or VF.

Abstract translation: 提供方法和装置用于区分来自高速单态QRS复合物的高倍数多态性QRS复合物，以增加使用QRS复合物的小波变换信号处理的多态性VT和VF检测的特异性。 将小波变换应用于QRS复合序列的采样振幅值，以开发小波变换系数（WTC）数据集。 处理至少选定的WTC数据集，并进行比较以确定小波匹配分数。 作为一系列连续QRS复合物的小波匹配分数的函数的确定，其表征最近的QRS复合物或多或少可能表示多态性VT或VF。

公开(公告)号：US07103405B2

公开(公告)日：2006-09-05

申请号：US10652757

申请日：2003-08-29

Applicant: Shantanu Sarkar ,  Mark L. Brown

Inventor： Shantanu Sarkar ,  Mark L. Brown

IPC: A61B5/464

CPC classification number: A61N1/3956 ,  A61B5/0031 ,  A61B5/046 ,  A61B5/0464

Abstract: Systems and methods employing a weighted zero crossing sum metric (WZCSM) derived from the EGM that improves the specificity of discriminating between a monomorphic tachyarrhythmia and a polymorphic tachyarrhythmia are provided that examine frequency content and baseline information of the EGM as discriminatory signatures are disclosed. In preferred embodiments, high rate polymorphic QRS complexes are discriminated from high rate monomorphic QRS complexes to increase the specificity of detection of polymorphic VT and VF. Zero crossing points (ZCPs) and weighted ZCP slopes of the high pass filtered EGM signal in baseline and sense event windows are identified. The weighted ZCPs of the baseline window are summed to provide a baseline WZCSB, and the weighted ZCPs of the VSENSE event window are summed to provide a VSENSE event WZCSE. A WZCSM is derived from the VSENSE event WZCSE and the baseline WZCSB that is compared to a threshold.

Abstract translation: 提供了从EGM导出的加权零交叉和度量（WZCS＆lt; M＆gt;）的系统和方法，其提高区分单态性快速性心律失常和多态性快速性心律失常的特异性，其检查频率内容和基线信息 公开了作为歧视性签名的EGM。 在优选的实施方案中，高速率多态性QRS复合物与高速率单态QRS复合物区分开来，以增加多态性VT和VF检测的特异性。 识别基线和感测事件窗口中的高通滤波EGM信号的过零点（ZCP）和加权ZCP斜率。 将基线窗口的加权ZCP相加以提供基线WZCS B，并且将VSENSE事件窗口的加权ZCP相加以提供VSENSE事件WZCS 。 WZCS＆lt;＆gt; M＆gt;从与阈值比较的VSENSE事件WZCS＆lt;＆gt;和基线WZCS＆lt; B＆gt;中导出。

公开(公告)号：US07076289B2

公开(公告)日：2006-07-11

申请号：US10652695

申请日：2003-08-29

Applicant: Shantanu Sarkar ,  Mark L Brown

Inventor： Shantanu Sarkar ,  Mark L Brown

IPC: A61N1/362 ,  A61N1/37

CPC classification number: A61N1/3956 ,  A61B5/0031 ,  A61B5/046 ,  A61B5/0464

Abstract: Systems and methods that improving the specificity of discriminating between a monomorphic tachyarrhythmia and a polymorphic tachyarrhythmia are provided that examine frequency content and baseline information of the EGM as discriminatory signatures. Particular algorithms of the present invention that are employed to determine frequency content of the QRS complexes are titled the Slope Distribution Metric (SDM) algorithm and the Slope Distribution Composite (SDC) algorithm.

Abstract translation: 提供了改善辨别单态性快速性心律失常和多态性快速性心律失常的特异性的系统和方法，其将EGM的频率内容和基线信息作为歧视性签名进行检查。 用于确定QRS复合物的频率含量的本发明的特定算法称为斜率分布度量（SDM）算法和斜率分布复合（SDC）算法。

公开(公告)号：US09094520B2

公开(公告)日：2015-07-28

申请号：US11620943

申请日：2007-01-08

Applicant: Sravan Vadlakonda ,  Ashish Chotai ,  Shantanu Sarkar ,  Aseem Asthana

Inventor： Sravan Vadlakonda ,  Ashish Chotai ,  Shantanu Sarkar ,  Aseem Asthana

IPC: H04M3/42 ,  H04M3/56

CPC classification number: H04M3/56 ,  H04M2203/2088

Abstract: In one embodiment, a method comprises storing information associated with a conference call that has previously been terminated. The method also comprises obtaining a request to re-establish the terminated conference call, and re-establishing the conference call in response to the request to re-establish the conference call. Re-establishing the conference call comprises using the stored information to set a first set of states associated with the re-established conference call.

Abstract translation: 在一个实施例中，一种方法包括存储与先前已被终止的电话会议相关联的信息。 该方法还包括获得重新建立终止的电话会议的请求，以及响应于重新建立会议呼叫的请求重新建立会议呼叫。 重新建立电话会议包括使用所存储的信息来设置与重新建立的电话会议相关联的第一组状态。

公开(公告)号：US08977350B2

公开(公告)日：2015-03-10

申请号：US13050091

申请日：2011-03-17

Applicant: Shantanu Sarkar ,  Eduardo N. Warman

Inventor： Shantanu Sarkar ,  Eduardo N. Warman

IPC: A61B5/04 ,  A61B5/02 ,  A61B5/0468 ,  A61N1/362 ,  A61N1/39 ,  A61B5/00

CPC classification number: A61B5/0468 ,  A61B5/7282 ,  A61N1/3624 ,  A61N1/395

Abstract: A medical device performs a method to classify a cardiac rhythm. Differences between cycle lengths in a first heart chamber are determined during an established time interval. Evidence of ectopy associated with irregular coupling intervals is detected from the signal during the established time interval. A rhythm classification output corresponding to a second heart chamber at the expiration of the established time interval is provided in response to the consecutive cycle length differences and the evidence of ectopy associated with irregular coupling intervals.

Abstract translation: 医疗器械执行心律的分类方法。 在建立的时间间隔期间确定第一心室中的循环长度之间的差异。 在建立的时间间隔期间从信号中检测到与不规则耦合间隔相关的异常的证据。 响应于连续循环长度差异和与不规则耦合间隔相关联的异常的证据，提供对应于在建立的时间间隔期满时的第二心室的节律分类输出。

公开(公告)号：US08938216B2

公开(公告)日：2015-01-20

申请号：US12953607

申请日：2010-11-24

Applicant: Shmuel Shaffer ,  Mukul Jain ,  Jochen Weppner ,  Shantanu Sarkar ,  Daniel Shaffer

Inventor： Shmuel Shaffer ,  Mukul Jain ,  Jochen Weppner ,  Shantanu Sarkar ,  Daniel Shaffer

IPC: H04M1/725 ,  H04N9/82

CPC classification number: G11B27/11 ,  G11B20/10527 ,  G11B2020/10537 ,  G11B2020/1062 ,  H04N9/8205 ,  H04W4/029

Abstract: Playback of multimedia data associated with a recorded conference session is simplified, particularly for a person who participated in the conference session from a mobile device. At a recording server that is in communication with a plurality of endpoints in a conference session, multimedia received from the plurality of endpoints participating in the conference session is recorded. The recording server obtains geographical location information for at least one mobile endpoint participating in the conference session as the at least one mobile endpoint moves. The recording server temporally correlates the geographical location information for the at least one endpoint with recorded multimedia data for the conference session. The recording server stores data tags for the geographical location information for the at least one mobile endpoint in association with the recorded multimedia data for subsequent use in indexing to map data to retrieve a portion of the recorded multimedia data for playback.

Abstract translation: 与记录的会议会话相关联的多媒体数据的回放被简化，特别是对于从移动设备参与会议会话的人来说。 在与会议会话中的多个端点通信的记录服务器中，记录从参与会议会话的多个端点接收到的多媒体。 当至少一个移动终端移动时，记录服务器获得参与会议会话的至少一个移动终端的地理位置信息。 记录服务器将至少一个端点的地理位置信息与会议会话的记录的多媒体数据暂时相关。 记录服务器存储与记录的多媒体数据相关联的用于至少一个移动端点的地理位置信息的数据标签，用于随后用于索引以映射数据以检索记录的多媒体数据的一部分用于回放。

公开(公告)号：US08488775B2

公开(公告)日：2013-07-16

申请号：US12962153

申请日：2010-12-07

Applicant: Shmuel Shaffer ,  Labhesh Patel ,  Robert T. Bell ,  Shantanu Sarkar

Inventor： Shmuel Shaffer ,  Labhesh Patel ,  Robert T. Bell ,  Shantanu Sarkar

IPC: H04M3/00

CPC classification number: H04M3/523 ,  H04M3/382 ,  H04M3/42221

Abstract: A method for recording automatic call distributor calls includes receiving from a caller a call for distribution to one of a plurality of agents and distributing the call to a first agent of the plurality of agents for handling. The method includes creating a call signature associated with the call for recording verification and recording communications of the call to a recording file. The method also includes embedding the call signature in the recording file.

Abstract translation: 用于记录自动呼叫分配器呼叫的方法包括从呼叫者接收分配给多个代理之一的呼叫并将呼叫分发给多个代理的第一代理进行处理。 该方法包括创建与用于记录验证的呼叫相关联的呼叫签名并将呼叫的通信记录到记录文件。 该方法还包括将呼叫签名嵌入到记录文件中。

公开(公告)号：US08435186B2

公开(公告)日：2013-05-07

申请号：US12696753

申请日：2010-01-29

Applicant: Douglas A. Hettrick ,  Donald J. Hefner ,  Shantanu Sarkar ,  Todd M. Zielinski

Inventor： Douglas A. Hettrick ,  Donald J. Hefner ,  Shantanu Sarkar ,  Todd M. Zielinski

IPC: A61B5/00

CPC classification number: A61N1/36521 ,  A61B5/0031 ,  A61B5/0215 ,  A61B5/02405 ,  A61B5/053 ,  A61B5/08 ,  A61B5/11 ,  A61B5/1116 ,  A61B5/4035 ,  A61N1/36535 ,  A61N1/37247 ,  A61N1/37258

Abstract: The disclosure describes techniques for quantifying the autonomic nervous system (ANS) health of a patient with thoracic impedance measurements. Thoracic impedance may be measured utilizing cardiac electrodes and an implantable medical device housing or other electrodes located on or within the patient. Since greater variability in thoracic impedance may indicate better health of the ANS, monitoring impedance changes in a patient may be used to quantify autonomic tone of the ANS, and ultimately, overall patient health. In some examples, thoracic impedance may be measured in response to a change in patient posture for acute monitoring or at predetermined times over several days, weeks, or months for more chronic monitoring of the patient. An implantable medical device may independently analyze the impedance measurements and transmit an alert to the patient or clinician when impedance changes indicate a change in patient health.

Abstract translation: 本公开描述了用于量化具有胸部阻抗测量的患者的自主神经系统（ANS）健康的技术。 可以使用心电极和位于患者内部或内部的可植入医疗装置外壳或其它电极来测量胸腔阻抗。 由于胸部阻抗变化较大可能表明ANS的健康状况良好，所以监测患者的阻抗变化可用于量化ANS的自主音调，并最终对整体患者的健康状况进行量化。 在一些示例中，可以响应于用于急性监测的患者姿势的变化或在几天，几周或几个月的预定时间来测量胸部阻抗以进行更长期的患者监测。 当阻抗变化表示患者健康状况发生变化时，植入式医疗设备可以独立地分析阻抗测量结果并向患者或临床医生发送警报。

公开(公告)号：US08422643B2

公开(公告)日：2013-04-16

申请号：US12608503

申请日：2009-10-29

Applicant: Cordell Ratzlaff ,  Shantanu Sarkar

Inventor： Cordell Ratzlaff ,  Shantanu Sarkar

IPC: H04M11/00 ,  G06F3/00

CPC classification number: H04M1/6505 ,  H04M1/72583

Abstract: A media system is provided. The media system may include a media player, an input, and a processor. The media player may have a scrub bar and a playhead. The scrub bar may be operable to represent a time line of a media recording that is being played back and the playhead may indicate a portion of the media recording that is being played back. The input may be operable to receive user behavior. The processor may be operable to dynamically adjust a speed of playback of the media recording based on the user behavior.

Abstract translation: 提供媒体系统。 媒体系统可以包括媒体播放器，输入和处理器。 媒体播放器可能有一个擦洗条和一个播放头。 擦洗条可以用于表示正在播放的媒体记录的时间线，并且播放头可以指示正在播放的媒体记录的一部分。 输入可以用于接收用户行为。 处理器可以可操作以基于用户行为动态地调整媒体记录的重放速度。