公开(公告)号：US20060251167A1

公开(公告)日：2006-11-09

申请号：US10539698

申请日：2003-12-16

申请人： Mihaela Van Der Schaar ,  Qiong Li

发明人： Mihaela Van Der Schaar ,  Qiong Li

IPC分类号： H04N7/12

CPC分类号： H04L65/4084 ,  H04L29/06 ,  H04L29/06027 ,  H04L65/80 ,  H04N21/23439 ,  H04N21/44029 ,  H04N21/44209 ,  H04N21/4621 ,  H04N21/6125 ,  H04N21/6581

摘要： A receiver-driven streaming method is provided. The method includes receiving an original coded video stream from a transmitter 102 at a receiver 104. An available bit rate is measured at the receiver 104. A request for a different coded video stream and a switching stream is sent from the receiver 104 to the transmitter 102 based on the available bit rate. The requested switching stream is received from the transmitter 102 at the receiver 104. The requested coded video stream is received from the transmitter 102 at the receiver 104. According to one embodiment, switching streams 132a-132f are stored separately from coded video streams 130a-130c, and each switching stream 132a-132f and coded video stream 130a-130c is stored in a separate track from each other. In this way, switching streams 132a-132f maybe generated offline. Also, the receiver 104 controls the streams provided by the transmitter 102 by requesting specific switching streams 132a-132f and coded video streams 130a-103c.

摘要翻译： 提供了一种接收机驱动的流传输方法。 该方法包括在接收机104处从发射机102接收原始编码视频流。在接收机104处测量可用比特率。对于不同编码视频流和切换流的请求从接收机104发送到发射机 102基于可用比特率。 所请求的切换流在接收机104处从发射机102接收。所请求的编码视频流在接收机104处从发射机102接收。根据一个实施例，切换流132a-132f与编码视频流 130a-130c，并且每个切换流132a-132f和编码视频流130a-130c彼此存储在单独的轨道中。 以这种方式，切换流132a-132f可以离线生成。 而且，接收机104通过请求特定的切换流132a-132f和编码的视频流130a-103c来控制由发射机102提供的流。

公开(公告)号：US20060165129A1

公开(公告)日：2006-07-27

申请号：US10538108

申请日：2003-12-10

申请人： Qiong Li ,  Mihaela Van Der Schaar

发明人： Qiong Li ,  Mihaela Van Der Schaar

IPC分类号： H04J3/06

CPC分类号： H04L47/2416 ,  H04L1/0014 ,  H04L1/0015 ,  H04L29/06027 ,  H04L47/10 ,  H04L47/25 ,  H04L47/28 ,  H04L65/608 ,  H04L65/80 ,  H04N21/26216 ,  H04N21/2662 ,  H04N21/6125 ,  H04N21/6437 ,  H04N21/64769

摘要： A so-called “Virtual Clock” with varying frequency is provided for used by a multimedia streaming server to adapt its transmission rate dynamically to changing network conditions. The “Virtual Clock” system and method of the present invention compensates for a potential limitation of the Internet Real-time Transmission Protocol (RTP), that stamps every packet it delivers with a timestamp and expects the server using this timestamp to schedule the transmission of this particular packet accordingly. Consequently, the transmission rate is pre-determined by the encoded multimedia content when RPT is used. Using the “Virtual Clock” of the present invention, the streaming server has a mechanism to overcome this RTP limitation and can conduct transmission rate adaptation in a way that can balance the bandwidth requirement of the content with the bandwidth availability of the network.

摘要翻译： 提供了具有不同频率的所谓“虚拟时钟”，供多媒体流服务器使用，以便将其传输速率动态地适应不断变化的网络条件。 本发明的“虚拟时钟”系统和方法补偿因特网实时传输协议（RTP）的潜在限制，因为它以每个分组的形式对其进行标记，并且期望使用该时间戳的服务器调度传输 相应的这个特定的包。 因此，当使用RPT时，传输速率由编码的多媒体内容预先确定。 使用本发明的“虚拟时钟”，流服务器具有克服该RTP限制的机制，并且可以以能够平衡内容的带宽需求与网络的带宽可用性的方式进行传输速率适配。

公开(公告)号：US20060069793A1

公开(公告)日：2006-03-30

申请号：US10538100

申请日：2003-12-10

申请人： Qiong Li ,  Mihaela Van Der Schaar

发明人： Qiong Li ,  Mihaela Van Der Schaar

IPC分类号： G06F15/16

CPC分类号： H04N1/48 ,  G01J3/46 ,  G01J3/465 ,  G01J3/501 ,  G01J3/51 ,  G01J2003/467 ,  H04L65/80 ,  H04L69/10 ,  H04L69/28 ,  H04L69/40

摘要： A circular buffer, i.e., a chain of buffers forming a circle, is provided for managing packet loss detection in Internet streaming. The detection latency is determined by the size of the buffer chain, which can be dynamically adapted to network conditions and application requirements. The present invention can achieve reasonable detection accuracy.

摘要翻译： 提供循环缓冲器，即形成圆的缓冲器链，用于管理因特网流中的分组丢失检测。 检测延迟由缓冲链的大小确定，缓冲链可以动态地适应网络条件和应用需求。 本发明可以实现合理的检测精度。

公开(公告)号：US20060262718A1

公开(公告)日：2006-11-23

申请号：US10547714

申请日：2003-09-01

申请人： Qiong Li ,  Mihaela van der Schaar

发明人： Qiong Li ,  Mihaela van der Schaar

IPC分类号： H04L12/26

CPC分类号： H04L47/10 ,  H04L1/0015 ,  H04L1/1825 ,  H04L1/1887 ,  H04L47/11 ,  H04L47/14 ,  H04L47/2416 ,  H04W24/00 ,  H04W28/14 ,  H04W28/18 ,  H04W84/12

摘要： This invention provides a system and method to dynamically adapt a wireless link retry limit in real-time according to channel conditions and workload intensity in order to maximize MAC throughput and minimize packet loss. In wireless local area networks (WLANs), such as IEEE 802.11b or a, packets can get lost due to either link error or interface queue overflow. Retry is deployed by a wireless link as a link error protection mechanism to reduce packet loss due to link error. However, an improper configuration of this retry limit (such as too high) may cause more packet loss due to queue overflow than link error. The retry-limit adaptation system and method of this invention strikes a balance between queue drops and link losses. Consequently, it achieves much better network performance in terms of a significant reduction of overall packet loss when compared with situations where the retry limit is statically configured, as recommended by the current standard. For video applications, this dynamic adaptation can be configured in such a way that the video quality for a particular network condition is optimized.

摘要翻译： 本发明提供一种根据信道条件和工作负载强度实时动态地适应无线链路重试限制的系统和方法，以便最大化MAC吞吐量并最小化分组丢失。 在诸如IEEE 802.11b或a之类的无线局域网（WLAN）中，由于链路错误或接口队列溢出，数据包可能会丢失。 重试由无线链路部署为链路错误保护机制，以减少链路错误引起的丢包。 但是，由于队列溢出而导致的重试限制（如太高）的配置不正确会导致链路错误导致更多的丢包。 本发明的重试限制适配系统和方法在队列丢弃和链路丢失之间达成平衡。 因此，根据当前标准的推荐，与静态配置重试限制的情况相比，在整体分组丢失显着减少方面，实现了更好的网络性能。 对于视频应用，可以以这样的方式配置该动态适配，使得针对特定网络条件的视频质量被优化。

公开(公告)号：US20060150053A1

公开(公告)日：2006-07-06

申请号：US10538447

申请日：2003-12-11

申请人： Mihaela van der Schaar ,  Qiong Li

发明人： Mihaela van der Schaar ,  Qiong Li

IPC分类号： H03M13/00

CPC分类号： H04N21/64792 ,  H04L29/06027 ,  H04L65/607 ,  H04L65/80 ,  H04N19/103 ,  H04N19/132 ,  H04N19/159 ,  H04N19/164 ,  H04N19/169 ,  H04N19/172 ,  H04N19/187 ,  H04N19/188 ,  H04N19/37 ,  H04N19/39 ,  H04N19/40 ,  H04N19/63 ,  H04N19/66 ,  H04N19/67 ,  H04N21/234309 ,  H04N21/234327 ,  H04N21/2383 ,  H04N21/6125 ,  H04N21/631 ,  H04N21/6375 ,  H04N21/6377 ,  H04N21/64738 ,  H04N21/658

摘要： A system and method is provided for switching between multiple description coding and scalable coding that is dependent on the network characteristics and uses forward error correction (FEC) and scalable or prioritized video.

摘要翻译： 提供了一种系统和方法，用于在取决于网络特性的多描述编码和可伸缩编码之间进行切换，并使用前向纠错（FEC）和可缩放或优先视频。

公开(公告)号：US20050275752A1

公开(公告)日：2005-12-15

申请号：US10531617

申请日：2003-09-19

申请人： Qiong Li ,  Mihaela Van Der Schaar

发明人： Qiong Li ,  Mihaela Van Der Schaar

IPC分类号： H04N7/12 ,  H04N7/173 ,  H04N7/24 ,  H04N9/74 ,  H04N11/02 ,  H04N11/04 ,  H04N7/16

CPC分类号： H04N21/2381 ,  H04N7/17318 ,  H04N21/234327 ,  H04N21/23805 ,  H04N21/2402 ,  H04N21/2662 ,  H04N21/4363 ,  H04N21/4381 ,  H04N21/6338 ,  H04N21/64322 ,  H04N21/6437

摘要： A system and method is provided to facilitate the transmission of scalable coded video over IP networks. A proposed pre-processing method is disclosed, referred to as multi-track hinting, efficiently structures layered video into a flexible format so that it can be easily streamed over packet-switching networks in accordance with changing network conditions, complexity constraints and user preferences. A general purpose MPEG server, without major modification, is capable of automatically using multiple channels (i.e., RTP connections), thereby providing the streaming system the flexibility to adapt to changing network conditions, complexity constraints and user preferences by adjusting the number of scalable layers to be transmitted. Accordingly, the multi-track hinting method extends the functions of standard Internet streaming protocols (RTSP, SDP) to enable flexible adaptation.

摘要翻译： 提供了一种系统和方法，以便于通过IP网络传输可伸缩编码视频。 公开了一种被称为多轨提示的预处理方法，其将分层视频有效地结构化成灵活的格式，使得可以根据变化的网络条件，复杂性约束和用户偏好容易地在分组交换网络上流式传输。 无需主要修改的通用MPEG服务器能够自动使用多个通道（即RTP连接），从而通过调整可伸缩层数来提供流系统灵活性，以适应不断变化的网络条件，复杂性约束和用户偏好 被传送。 因此，多轨提示方法扩展了标准互联网流协议（RTSP，SDP）的功能，以实现灵活的适配。

公开(公告)号：US20060005101A1

公开(公告)日：2006-01-05

申请号：US10531601

申请日：2003-09-19

申请人： Qiong Li ,  Mihaela Van Der Schaar ,  Richard Chen

发明人： Qiong Li ,  Mihaela Van Der Schaar ,  Richard Chen

IPC分类号： H03M13/00

CPC分类号： H04L65/608 ,  H03M13/35 ,  H04L1/0009 ,  H04L1/0022 ,  H04L1/004 ,  H04L1/1812 ,  H04L29/06027 ,  H04L65/607 ,  H04L65/80 ,  H04L69/18 ,  H04L69/40

摘要： A system and method provides a realistic architecture and specifies the protocols that are necessary for carrying out adaptive and efficient protection, thereby allowing applications to dynamically switch between different protection strategies. Protection is uniquely achieved by providing the protection track (206, 208, 210) as a separate stream from the media data stream (202, 204). In this manner, changing the protection data can change the protection level or strategy, but the protection procedures remain the same. Further, the method uses Real-time Transport protocol (RTSP) instead of Internet Group Management protocol (IGMP) which can achieve faster protection and provide more flexibility to applications.

摘要翻译： 系统和方法提供了一个现实的架构，并指定了执行自适应和高效保护所必需的协议，从而允许应用程序在不同的保护策略之间动态切换。 通过将保护轨道（206,208,210）提供为与媒体数据流（202,204）不同的流来唯一地实现保护。 以这种方式，更改保护数据可以改变保护等级或策略，但是保护过程保持不变。 此外，该方法使用实时传输协议（RTSP）而不是互联网组管理协议（IGMP），其可以实现更快的保护并为应用提供更多的灵活性。

公开(公告)号：US11706262B2

公开(公告)日：2023-07-18

申请号：US17724614

申请日：2022-04-20

申请人： Qiong Li

发明人： Qiong Li

IPC分类号： H04L65/1069 ,  G06F3/04817 ,  G06F3/04847 ,  G06F3/0482 ,  G06F3/0488

CPC分类号： H04L65/1069 ,  G06F3/0482 ,  G06F3/04817 ,  G06F3/04847 ,  G06F3/0488

摘要： A communication system comprises a set of specialized backend servers 100 and groups of terminals (210, 220) connected through the Internet. Users of the communication system can make video calls and share text messages, images and video clips through the terminals (210, 220). The terminals in this system are organized into private terminal groups 200 of varying sizes. Each group has only one controller terminal 210 and one or more display terminals 220. Both types of terminals provide an easy-to-use graphic user interface for the user to access the communication services provided by the system. Communication and information sharing between any display terminals must be pre-authorized by their controllers. This communication system, while ensuring security and privacy, addresses the needs of caregiver groups that include caregiver professionals, family members and care receivers, to facilitate private conference calls, information sharing and caring activity coordination.

公开(公告)号：US20100299075A1

公开(公告)日：2010-11-25

申请号：US12777199

申请日：2010-05-10

申请人： Qiong Li ,  Scott Pardo ,  Stanley A. Telson

发明人： Qiong Li ,  Scott Pardo ,  Stanley A. Telson

IPC分类号： G06F15/00 ,  G01N33/48

CPC分类号： G16H50/20 ,  A61B5/14532

摘要： Embodiments provide methods and systems wherein analyte concentration readings taken over a first period of time are collected and processed to determine one or more analyte concentration averages. The methods include collecting samples with a measurement system (e.g., a Blood Glucose Meter) over a first period of time, dividing the first period of time into smaller time increments, and calculating an average analyte concentration based on first sub-averages obtained from each of the smaller time increments. Systems for carrying out the analyte concentration averages are described, as are other aspects.

摘要翻译： 实施方案提供了收集和处理在第一时间段内获取的分析物浓度读数以确定一种或多种分析物浓度平均值的方法和系统。 所述方法包括在第一时间段内收集具有测量系统（例如，血糖仪）的样品，将第一时间段分成更小的时间增量，并且基于从每个样品获得的第一次平均值计算平均分析物浓度 的较小的时间增量。 还描述了用于执行分析物浓度平均值的系统，以及其它方面。

公开(公告)号：US06510066B2

公开(公告)日：2003-01-21

申请号：US09822401

申请日：2001-03-30

申请人： Demetri Giannopoulos ,  Qiong Li ,  Nai-Chi Lee

发明人： Demetri Giannopoulos ,  Qiong Li ,  Nai-Chi Lee

IPC分类号： H02M324

CPC分类号： H02M3/33523 ,  H02M2001/0012 ,  H02M2001/0032 ,  H02M2001/009 ,  Y02B70/16

摘要： A switch mode power supply (SMPS) and method are provided. In particular, the present invention provides an SMPS in which data is encoded by manipulating voltage pulses on a primary side. The manipulated voltage pulses are then transferred over a transformer to a secondary side. Secondary side pulses generated in response to the primary side pulses are sensed and decoded by a detector. The present invention allows data to be transferred from the primary side to the secondary side without affecting output voltages.

摘要翻译： 提供开关电源（SMPS）和方法。 特别地，本发明提供一种SMPS，其中通过操纵初级侧的电压脉冲对数据进行编码。 然后将受控电压脉冲通过变压器传送到次级侧。 响应于初级侧脉冲而产生的次级侧脉冲由检测器检测和解码。 本发明允许数据从初级侧传送到次级侧而不影响输出电压。