公开(公告)号：US20090327418A1

公开(公告)日：2009-12-31

申请号：US12147603

申请日：2008-06-27

Applicant: Zhengyou Zhang ,  Xuedong David Huang ,  Zicheng Liu ,  Cha Zhang ,  Philip A. Chou ,  Christian Huitema

Inventor： Zhengyou Zhang ,  Xuedong David Huang ,  Zicheng Liu ,  Cha Zhang ,  Philip A. Chou ,  Christian Huitema

IPC: G06F15/16

CPC classification number: H04N7/142 ,  H04M3/567 ,  H04N7/147 ,  H04N7/15

Abstract: A multimedia conference technique is disclosed that allows physically remote users to participate in an immersive telecollaborative environment by synchronizing multiple data, images and sounds. The multimedia conference implementation provides users with the perception of being in the same room visually as well as acoustically according to an orientation plan which reflects each remote user's position within the multimedia conference environment.

Abstract translation: 公开了一种多媒体会议技术，其允许物理上的远程用户通过同步多个数据，图像和声音来参与沉浸式的电视解码环境。 多媒体会议实现为用户提供了根据反映每个远程用户在多媒体会议环境中的位置的方向计划在视觉上和声学上在同一房间中的感觉。

公开(公告)号：US07613121B2

公开(公告)日：2009-11-03

申请号：US11363801

申请日：2006-02-28

Applicant: Philip A. Chou ,  Kamal Jain ,  Dinesh Garg

Inventor： Philip A. Chou ,  Kamal Jain ,  Dinesh Garg

IPC: G01R31/08

CPC classification number: H04L45/123 ,  H04L45/12 ,  H04L45/22 ,  H04L45/28

Abstract: Congestion adaptive data routing is leveraged to provide a substantial increase in data throughput in networks with data congestion. By continuously adapting the data routes when a congested route is encountered, the data can reach its destination via alternate routes around the congested area. This is accomplished in a distributed manner where each node provides an alternative path to congestion based on its local knowledge and/or knowledge obtained from neighboring nodes. This allows the data path to be dynamically adjusted for congestion without requiring a centralized body of control. In another instance, data rate changes can be combined with data path changes to increase the efficiency of the data throughput. Alternative routes can be determined based upon the costs associated with selecting that route. Selecting a minimum cost route yields the most efficient transfer of data.

Abstract translation: 拥塞自适应数据路由被用来提供具有数据拥塞的网络中的数据吞吐量的显着增加。 通过在遇到拥塞路由时不断调整数据路由，数据可以通过拥塞区域周围的备用路由到达目的地。 这是以分布式方式实现的，其中每个节点基于从相邻节点获得的本地知识和/或知识提供了拥塞的替代路径。 这允许数据路径被动态地调整以用于拥塞而不需要集中的控制体。 在另一种情况下，数据速率变化可以与数据路径改变相结合，以提高数据吞吐量的效率。 可以基于与选择该路线相关联的成本来确定替代路线。 选择最低成本路线可以最有效地传输数据。

公开(公告)号：US20090172779A1

公开(公告)日：2009-07-02

申请号：US11968194

申请日：2008-01-02

Applicant: Rajesh K. Hegde ,  Cha Zhang ,  Philip A. Chou ,  Zicheng Liu

Inventor： Rajesh K. Hegde ,  Cha Zhang ,  Philip A. Chou ,  Zicheng Liu

IPC: G06F21/00

CPC classification number: G06F21/6209

Abstract: Described herein is a method that includes receiving multiple requests for access to an exposed media object, wherein the exposed media object represents a live media stream that is being generated by a media source. The method also includes receiving data associated with each entity that provided a request, and determining, for each entity, whether the entities that provided the request are authorized to access the media stream based at least in part upon the received data and splitting the media stream into multiple media streams, wherein a number of media streams corresponds to a number of authorized entities. The method also includes automatically applying at least one policy to at least one of the split media streams based at least in part upon the received data.

Abstract translation: 这里描述的方法包括接收对暴露的媒体对象的访问的多个请求，其中所述暴露的媒体对象表示正由媒体源生成的实况媒体流。 该方法还包括接收与提供请求的每个实体相关联的数据，以及为每个实体确定提供该请求的实体是否被授权至少部分地基于所接收的数据和分割媒体流来访问媒体流 转换成多个媒体流，其中多个媒体流对应于多个授权实体。 该方法还包括至少部分地基于所接收的数据自动地将至少一个策略应用于至少一个分离媒体流。

公开(公告)号：US20080291834A1

公开(公告)日：2008-11-27

申请号：US12185720

申请日：2008-08-04

Applicant: Philip A. Chou ,  Yunnan Wu ,  Kamal Jain

Inventor： Philip A. Chou ,  Yunnan Wu ,  Kamal Jain

IPC: H04L12/24

CPC classification number: H04L1/0076 ,  H04H20/42 ,  H04H20/82

Abstract: A system and method that can receive, buffer, and asynchronously combine data from various incoming data packets is disclosed. The system and method can do so by, first, receiving incoming packets of one or multiple generations that have incoming data and incoming metadata, with the incoming data of each of the incoming packets that are of a first generation being a combination of a first, original set of data vectors, and the incoming metadata of each of the first generation of incoming packets including an indicator for the first generation. Second, once these incoming packets are received, the system and method can buffer them based on the indicator and, asynchronously from the receiving and buffering, combine the incoming data in the buffered, first generation incoming packets into outgoing data in an outgoing packet.

Abstract translation: 公开了可以接收，缓冲和异步地组合来自各种输入数据分组的数据的系统和方法。 系统和方法可以通过首先接收具有传入数据和传入元数据的一代或多代的传入分组，其中第一代的每个输入分组的输入数据是第一， 原始数据向量集合，以及第一代进入分组中的每一个的传入元数据，包括用于第一代的指示符。 第二，一旦这些传入的分组被接收，系统和方法可以基于指示符缓冲它们，并且从接收和缓冲异步地将缓冲的第一代进入分组中的输入数据组合成输出分组中的输出数据。

公开(公告)号：US20080281586A1

公开(公告)日：2008-11-13

申请号：US12181159

申请日：2008-07-28

Applicant: Dinei A. Florencio ,  Philip A. Chou

Inventor： Dinei A. Florencio ,  Philip A. Chou

IPC: G10L11/06

CPC classification number: G10L25/87 ,  G10L2025/783

Abstract: A “speech onset detector” provides a variable length frame buffer in combination with either variable transmission rate or temporal speech compression for buffered signal frames. The variable length buffer buffers frames that are not clearly identified as either speech or non-speech frames during an initial analysis. Buffering of signal frames continues until a current frame is identified as either speech or non-speech. If the current frame is identified as non-speech, buffered frames are encoded as non-speech frames. However, if the current frame is identified as a speech frame, buffered frames are searched for the actual onset point of the speech. Once that onset point is identified, the signal is either transmitted in a burst, or a time-scale modification of the buffered signal is applied for compressing buffered frames beginning with the frame in which onset point is detected. The compressed frames are then encoded as one or more speech frames.

Abstract translation: “语音起始检测器”提供了可变长度帧缓冲器，与缓冲信号帧的可变传输速率或时间语音压缩相结合。 可变长度缓冲器缓冲在初始分析期间未被清楚地识别为语音或非语音帧的帧。 信号帧的缓冲持续到当前帧被识别为语音或非语音。 如果当前帧被识别为非语音，则缓冲帧被编码为非语音帧。 然而，如果当前帧被识别为语音帧，则搜索缓冲的帧用于语音的实际起始点。 一旦该起始点被识别，则信号以突发方式发送，或者缓冲信号的时间尺度修改被应用于从检测到起始点的帧开始的缓冲帧。 然后将压缩的帧编码为一个或多个语音帧。

公开(公告)号：US07424730B2

公开(公告)日：2008-09-09

申请号：US10658898

申请日：2003-09-10

Applicant: Philip A. Chou

Inventor： Philip A. Chou

IPC: H04N7/173

CPC classification number: H04N21/6377 ,  H04N7/17336 ,  H04N19/33 ,  H04N21/23406 ,  H04N21/234327 ,  H04N21/23439 ,  H04N21/2401 ,  H04N21/4384 ,  H04N21/44004 ,  H04N21/6125 ,  H04N21/658

Abstract: Systems and methods for presenting time-varying multimedia content are described. In one aspect, a lower quality data stream for an initial portion of the multimedia content is received. The lower quality data stream is received at a rate faster than a real-time playback rate for the multimedia content. The lower quality data stream was encoded at a bit rate below a transmission rate. A higher quality data stream of a subsequent portion of the multimedia content is received. The higher quality data stream was encoded at a bit rate that equals the transmission rate. The initial portion and the subsequent portion of the multimedia content are presented at the real-time playback rate. Receiving the initial portion faster than the real-time playback rate provides for a reduction of latency due to buffering by a desired amount.

Abstract translation: 描述用于呈现时变多媒体内容的系统和方法。 在一个方面，接收用于多媒体内容的初始部分的较低质量的数据流。 以比多媒体内容的实时播放速率更快的速率接收较低质量的数据流。 低质量数据流以低于传输速率的比特率进行编码。 接收多媒体内容的后续部分的较高质量的数据流。 较高质量的数据流以等于传输速率的比特率进行编码。 以实时播放速率呈现多媒体内容的初始部分和后续部分。 接收比实时播放速度更快的初始部分提供了由于缓冲期望的量而导致的延迟的减少。

公开(公告)号：US20080170717A1

公开(公告)日：2008-07-17

申请号：US11623643

申请日：2007-01-16

Applicant: Zicheng Liu ,  Zhengyou Zhang ,  Li-wei He ,  Philip A. Chou ,  Minghua Chen

Inventor： Zicheng Liu ,  Zhengyou Zhang ,  Li-wei He ,  Philip A. Chou ,  Minghua Chen

IPC: H04R3/00

CPC classification number: G01S11/14 ,  G01S5/30 ,  H04M3/56 ,  H04N7/141 ,  H04N7/15 ,  H04R3/005 ,  H04R2420/07

Abstract: An energy based technique to estimate the positions of people speaking from an ad hoc network of microphones. The present technique does not require accurate synchronization of the microphones. In addition, a technique to normalize the gains of the microphones based on people's speech is presented, which allows aggregation of various audio channels from the ad hoc microphone network into a single stream for audio conferencing. The technique is invariant of the speaker's volumes thus making the system easy to deploy in practice.

Abstract translation: 一种基于能量的技术来估计从麦克风的自组织网络发言的人的位置。 本技术不需要麦克风的准确同步。 此外，提出了一种基于人们的语音来归一化麦克风的增益的技术，其允许将各种音频频道从专用麦克风网络聚合成用于音频会议的单个流。 该技术是扬声器音量不变的，从而使得系统在实践中容易部署。

公开(公告)号：US20080100694A1

公开(公告)日：2008-05-01

申请号：US11588708

申请日：2006-10-27

Applicant: Warren V. Barkley ,  Philip A. Chou ,  Regis J. Crinon ,  Tim Moore

Inventor： Warren V. Barkley ,  Philip A. Chou ,  Regis J. Crinon ,  Tim Moore

IPC: H04N7/14

CPC classification number: H04N7/152

Abstract: Techniques to perform distributed caching for multimedia conference calls are described. An apparatus may comprise a conferencing server and a frame management module. The conferencing server may receive a sequence of video frames from a sending client terminal and send the sequence of video frames to multiple receiving client terminals. The frame management module may receive a client frame request for one of the video frames from a receiving client terminal, retrieve the requested video frame, and send the requested video frame in response to the client frame request. Other embodiments are described and claimed.

Abstract translation: 描述了为多媒体电话会议执行分布式缓存的技术。 一种装置可以包括会议服务器和帧管理模块。 会议服务器可以从发送客户终端接收视频帧序列，并将视频帧序列发送到多个接收客户终端。 帧管理模块可以从接收客户终端接收视频帧之一的客户端帧请求，检索所请求的视频帧，并响应于客户机帧请求发送所请求的视频帧。 描述和要求保护其他实施例。

公开(公告)号：US20080095079A1

公开(公告)日：2008-04-24

申请号：US11583275

申请日：2006-10-18

Applicant: Warren V. Barkley ,  Philip A. Chou ,  Regis J. Crinon ,  Tim Moore

Inventor： Warren V. Barkley ,  Philip A. Chou ,  Regis J. Crinon ,  Tim Moore

IPC: H04L12/16

CPC classification number: H04L65/4038 ,  H04L12/1827 ,  H04L67/1002 ,  H04L67/1008 ,  H04L67/101 ,  H04L67/1031 ,  H04L67/1034 ,  H04L67/14 ,  H04L67/148 ,  H04L67/322

Abstract: Techniques for virtual conferencing servers are described. An apparatus may comprise a conferencing server to manage a conference call with multiple client terminals. The conferencing server may have a virtual conference manager to select a first client terminal to operate as a first virtual conferencing server, and transfer conference call operations for a second client terminal from the conferencing server to the first virtual conferencing server. Other embodiments are described and claimed.

Abstract translation: 描述了虚拟会议服务器的技术。 一种装置可以包括会议服务器来管理具有多个客户终端的电话会议。 会议服务器可以具有虚拟会议管理器，以选择第一客户终端作为第一虚拟会议服务器进行操作，并且将第二客户终端的会议呼叫操作从会议服务器传送到第一虚拟会议服务器。 描述和要求保护其他实施例。

公开(公告)号：US20080005188A1

公开(公告)日：2008-01-03

申请号：US11428270

申请日：2006-06-30

Applicant: Jin Li ,  Dan Teodosiu ,  Philip A. Chou ,  Cheng Huang ,  Eyal Schwartz ,  John T. Spivey ,  Yunnan Wu ,  Alexandra K. Heron

Inventor： Jin Li ,  Dan Teodosiu ,  Philip A. Chou ,  Cheng Huang ,  Eyal Schwartz ,  John T. Spivey ,  Yunnan Wu ,  Alexandra K. Heron

IPC: G06F17/30

CPC classification number: G06F17/30165 ,  G06F17/30174 ,  G06F17/30206

Abstract: Content synchronization in a file sharing environment is described. A node in a circle share maintains a version vector that represents that node's knowledge of file synchronization events. Version vector data may be transmitted between nodes of the circle share via a presence service in the form of short notification messages. The version vector data is compared to identify one or more nodes to be synchronized. A resource-aware overlay representing the circle share is computed, and is used to initiate communication to determine which of the available nodes with which to synchronize will provide the most synchronization value to other nodes in the circle share.

Abstract translation: 描述文件共享环境中的内容同步。 圆形共享中的节点维护一个版本向量，表示该节点对文件同步事件的了解。 版本矢量数据可以通过存在服务以短通知消息的形式在圆圈的节点之间传送。 将版本矢量数据进行比较，以识别要同步的一个或多个节点。 计算表示圆圈共享的资源感知覆盖，并且用于发起通信以确定哪个与其同步的可用节点将与圆共享中的其他节点提供最大的同步值。