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：US20050078170A1

公开(公告)日：2005-04-14

申请号：US10680918

申请日：2003-10-08

Applicant: Scott Firestone ,  Walter Friedrich ,  Nermin Ismail ,  Keith Lantz ,  Shantanu Sarkar ,  Luke Surazski ,  Duanpei Wu

Inventor： Scott Firestone ,  Walter Friedrich ,  Nermin Ismail ,  Keith Lantz ,  Shantanu Sarkar ,  Luke Surazski ,  Duanpei Wu

IPC: H04N7/15 ,  H04N7/14

CPC classification number: H04N7/14 ,  H04L12/1822 ,  H04L65/4046 ,  H04L65/605 ,  H04M3/567 ,  H04M2207/20 ,  H04N7/15

Abstract: A method for executing a video conference is provided that includes receiving one or more audio streams associated with a video conference from one or more end points and determining an active speaker associated with one of the end points. Audio information associated with the active speaker may be received at one or more media switches. One or more video streams may be suppressed except for a selected video stream associated with the active speaker, the selected video stream propagating to one or more of the media switches during the video conference. The selected video stream may be replicated such that it may be communicated to one or more of the end points associated with a selected one of the media switches.