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    System to cancel ghosts generated by multipath transmission of television signals
    21.
    发明授权
    System to cancel ghosts generated by multipath transmission of television signals 失效
    系统消除由多路传输电视信号产生的重影

    公开(公告)号：US5341177A

    公开(公告)日：1994-08-23

    申请号：US891058

    申请日：1992-06-01

    Applicant: Sumit Roy ,  Chandrakant B. Patel ,  Jian Yang

    Inventor： Sumit Roy ,  Chandrakant B. Patel ,  Jian Yang

    IPC: H04N5/21 ,  H04N5/213

    CPC classification number: H04N5/211

    Abstract: A ghost-canceling reference signal for inclusion in a television signal is provided by cyclically inserting ones of extended-length complementary-sequence pairs into a prescribed scan line in each of the vertical blanking intervals of successive fields of the television signal. By definition, a pair of binary (.+-.1) sequences of similar length to each other are complementary sequences only if the sum of the linear autocorrelation functions of the sequences is identically zero for all shifts other than zero but provides a high correlation gain at zero shift. A television receiver is described for receiving television signals containing such ghost-canceling reference signals, separating the ghosted complementary-sequence pairs from the received television signals, linearly correlating the ghosted complementary-sequences with corresponding ghost-free complementary-sequences previously stored in the receiver, and adjusting the filtering parameters of ghost-canceling video filters in accordance with the sum of the linear correlation results.

    Abstract translation: 通过在电视信号的连续场的每个垂直消隐间隔的每个垂直消隐间隔中将扩展长度互补序列对中的一个循环插入到规定的扫描线中来提供包含在电视信号中的重影消除参考信号。 根据定义，只有对于除零之外的所有移位，序列的线性自相关函数之和相同为零，则彼此相似长度的一对二进制（+/- 1）序列是互补序列，但是提供高的相关增益 零班。 描述了一种用于接收包含这种重影消除参考信号的电视信号的电视接收机，从接收到的电视信号中分离出重影的互补序列对，将重影的互补序列与先前存储在接收机中的相应的无重影互补序列线性相关 ，并根据线性相关结果的和调整重影消除视频滤波器的滤波参数。

    Session handoff of segmented media data
    25.
    发明授权
    Session handoff of segmented media data 有权
    分段媒体数据的会话切换

    公开(公告)号：US08200747B2

    公开(公告)日：2012-06-12

    申请号：US10195081

    申请日：2002-07-12

    Applicant: John G. Apostolopoulos ,  Sumit Roy

    Inventor： John G. Apostolopoulos ,  Sumit Roy

    IPC: G06F15/16

    CPC classification number: H04L67/1008 ,  H04L67/1002 ,  H04L67/101 ,  H04L67/1021 ,  H04L67/14 ,  H04L67/2842 ,  H04L69/329

    Abstract: A method and system thereof for handing off a media session are described. In one embodiment, a first media segment is forwarded to a client node. The first media segment includes a portion of an item of media content stored in lieu of storing the item of media content in its entirety. The item of media content is segmented according to segmentation characteristics. Handoff information used for transferring the media session to another server node is specified. The handoff of the media session to the other server node occurs when the forwarding of the first media segment is completed, such that the handoff occurs between media segments.

    Abstract translation: 描述了用于切换媒体会话的方法和系统。 在一个实施例中，第一媒体段被转发到客户端节点。 第一媒体段包括存储的媒体内容的一部分，而不是整体地存储媒体内容的项目。 根据分割特征对媒体内容进行细分。 指定用于将媒体会话传送到另一个服务器节点的切换信息。 当第一媒体段的转发完成时，媒体会话到另一个服务器节点的越区切换，使得切换发生在媒体段之间。

    Method and system for managing a streaming media service
    29.
    发明授权
    Method and system for managing a streaming media service 有权
    用于管理流媒体服务的方法和系统

    公开(公告)号：US07613768B2

    公开(公告)日：2009-11-03

    申请号：US10698685

    申请日：2003-10-30

    Applicant: Michael Harville ,  Michele Covell ,  John Ankcorn ,  John Apostolopoulos ,  Sumit Roy ,  Bo Shen ,  Wai-tian Tan ,  Susie Wee

    Inventor： Michael Harville ,  Michele Covell ,  John Ankcorn ,  John Apostolopoulos ,  Sumit Roy ,  Bo Shen ,  Wai-tian Tan ,  Susie Wee

    IPC: G06F15/16

    CPC classification number: H04L67/16 ,  H04L29/06027 ,  H04L65/4007 ,  H04L65/605 ,  H04L65/80 ,  H04L67/2838 ,  H04L69/329 ,  H04W28/16 ,  H04W36/14 ,  H04W48/08 ,  H04W48/18

    Abstract: One embodiment of the invention includes a method for managing a streaming media service. The method includes receiving a request for a streaming media service from a client and the streaming media service includes a media service component. A service location manager is selected to which to provide the request from a plurality of service location managers. Additionally, a service provider is selected to which to assign the media service component from a plurality of service providers of a network. Furthermore, the service provider is informed of the assignment to perform the media service component. The service provider is caused to prepare to perform the streaming media service on streaming media. Moreover, information is used to determine whether to initiate a handoff of the streaming media service from the service provider to another service provider. If it is determined to initiate the handoff, the handoff is initiated.

    Abstract translation: 本发明的一个实施例包括用于管理流媒体服务的方法。 该方法包括从客户端接收流媒体服务的请求，流媒体服务包括媒体服务组件。 选择服务位置管理器以向多个服务位置管理器提供请求。 另外，选择服务提供商来从多个网络的服务提供商分配媒体服务组件。 此外，向服务提供者通知执行媒体服务组件的分配。 使服务提供商准备在流媒体上执行流媒体服务。 此外，信息用于确定是否发起流媒体服务从服务提供商到另一服务提供商的切换。 如果确定启动切换，则启动切换。

    System and computer program product for simultaneous cell identification/technology mapping
    30.
    发明授权
    System and computer program product for simultaneous cell identification/technology mapping 有权
    用于同步小区识别/技术映射的系统和计算机程序产品

    公开(公告)号：US07539956B1

    公开(公告)日：2009-05-26

    申请号：US11601272

    申请日：2006-11-16

    Applicant: Aiguo Xie ,  Sumit Roy

    Inventor： Aiguo Xie ,  Sumit Roy

    IPC: G06F17/50

    CPC classification number: G06F17/505

    Abstract: A system, method and computer program product are provided for simultaneous cell identification/technology mapping. In use, a plurality of data operators is received. Further, at least two cells are identified for each data operator, simultaneously with technology mapping. By this design, at least one of the cells may thus be selected for design optimization purposes.

    Abstract translation: 提供了用于同步小区识别/技术映射的系统，方法和计算机程序产品。 在使用中，接收多个数据运算符。 此外，与技术映射同时，为每个数据操作者识别至少两个小区。 通过该设计，因此可以选择至少一个单元用于设计优化目的。

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