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    Method and an apparatus for mapping an MPEG transport stream into IP packets for WLAN broadcast
    1.
    发明授权
    Method and an apparatus for mapping an MPEG transport stream into IP packets for WLAN broadcast 失效
    用于将MPEG传输流映射到用于WLAN广播的IP分组中的方法和装置

    公开(公告)号：US07675901B2

    公开(公告)日：2010-03-09

    申请号：US10541930

    申请日：2004-01-09

    申请人： Charles Chuanming Wang ,  Kumar Ramaswamy ,  Guillaume Bichot ,  Junbiao Zhang

    发明人： Charles Chuanming Wang ,  Kumar Ramaswamy ,  Guillaume Bichot ,  Junbiao Zhang

    IPC分类号： H04L12/66

    CPC分类号： H04N21/64707 ,  H04L12/1836 ,  H04L12/189 ,  H04L29/06027 ,  H04L65/1026 ,  H04L65/1036 ,  H04L65/604 ,  H04L65/607 ,  H04L65/608 ,  H04W4/06 ,  H04W4/18 ,  H04W8/26 ,  H04W28/06 ,  H04W28/065 ,  H04W52/0229 ,  H04W72/1273 ,  H04W84/12 ,  Y02D70/142

    摘要： A method for mapping from an MPEG-2 transport stream to an IP-based RTP/UDP/IP stack for broadcasting service in a WLAN. All the mapping functions may be performed in a receiver transcoder (FIG. 2). Mobile devices such as laptop computers, cell phones and PDAs have limited battery power, CPU processing and memory resources. To reduce CPU processing power and consumption battery power in these devices certain data processing functions are achieved in the communicating systems, such as the de-multiplexer function that typically prepares an MPEG-2 for retransmission at the local level. When a transcoder, capable of de-multiplexing and MPEG-2 transport stream receives a program it de-multiplexes the stream based on PIDs assigned to each transport packet. This de-multiplexing function extracts several components from a transport stream: video and audio PES/ES associated with programs and PSI (PAT and PMTs).

    摘要翻译： 一种从MPEG-2传输流映射到用于WLAN中的广播服务的基于IP的RTP / UDP / IP堆栈的方法。 所有映射功能可以在接收机代码转换器（图2）中执行。 诸如膝上型计算机，蜂窝电话和PDA的移动设备具有有限的电池电量，CPU处理和存储器资源。 为了降低这些设备中的CPU处理能力和消耗电池功率，在通信系统中实现了某些数据处理功能，例如通常在本地级准备用于重传的MPEG-2的去多路复用器功能。 当能够解复用和MPEG-2传输流的代码转换器接收到一个程序时，它根据分配给每个传输数据包的PID对数据流进行解复用。 该解复用功能从传输流中提取多个组件：与程序和PSI（PAT和PMT）相关联的视频和音频PES / ES。

    Seamless public wireless local area network user authentication
    3.
    发明授权
    Seamless public wireless local area network user authentication 有权
    无缝公共无线局域网用户认证

    公开(公告)号：US08289936B2

    公开(公告)日：2012-10-16

    申请号：US10514311

    申请日：2003-05-13

    申请人： Charles Chuanming Wang ,  Sachin Satish Mody ,  Junbiao Zhang ,  Kumar Ramaswamy

    发明人： Charles Chuanming Wang ,  Sachin Satish Mody ,  Junbiao Zhang ,  Kumar Ramaswamy

    IPC分类号： H04W4/00 ,  H04L12/66 ,  H04L12/00 ,  H04L9/32 ,  G06F15/17

    CPC分类号： H04L63/061 ,  H04L12/2856 ,  H04L63/08 ,  H04L63/104 ,  H04L63/162 ,  H04W12/06 ,  H04W12/08 ,  H04W48/14 ,  H04W80/00 ,  H04W84/12

    摘要： A public wireless LAN permits receipt of non-authentication traffic, such as access information requests, from a mobile wireless communications device prior to device authentication by partially opening a controlled port within an access point. The wireless LAN re-directs such non-authentication traffic received at the AP from the mobile wireless communications to a local web server. The local web server provides reply to the mobile wireless communications device, enabling a determination by the device whether or not to request access. The device seeks access by way of an access request received at the AP. In response, the AP re-directs the access request through an uncontrolled port in the AP to an access server that authenticates device. Upon successful device authentication, the AP fully opens its controlled port to permit the exchange of traffic through that port with the mobile wireless communications device.

    摘要翻译： 在设备认证之前，公共无线LAN允许从移动无线通信设备接收诸如接入信息请求的非认证业务，部分地打开接入点内的受控端口。 无线LAN将从AP接收到的这种非认证流量从移动无线通信重新引导到本地Web服务器。 本地web服务器提供对移动无线通信设备的回复，使得设备能够确定是否请求访问。 该设备通过在AP接收到的接入请求来寻求接入。 作为响应，AP通过AP中的非受控端口将访问请求重定向到认证设备的访问服务器。 在成功的设备认证后，AP完全打开其受控端口，以允许通过该端口与移动无线通信设备交换流量。

    Technique for video broadcasting in wireless lan
    4.
    发明申请
    Technique for video broadcasting in wireless lan 有权
    无线局域网视频广播技术

    公开(公告)号：US20060174288A1

    公开(公告)日：2006-08-03

    申请号：US10564253

    申请日：2003-07-14

    申请人： Guillaume Bichot ,  Kumar Ramaswamy ,  Junbiao Zhang ,  Charles Wang

    发明人： Guillaume Bichot ,  Kumar Ramaswamy ,  Junbiao Zhang ,  Charles Wang

    IPC分类号： H04N7/18

    CPC分类号： H04W72/005 ,  H04L12/1859 ,  H04N7/163 ,  H04N21/2381 ,  H04N21/26616 ,  H04N21/2665 ,  H04N21/4126 ,  H04N21/43615 ,  H04N21/4363 ,  H04N21/43637 ,  H04N21/4381 ,  H04N21/4402 ,  H04N21/4622 ,  H04W84/12

    摘要： A wireless Local Area Network provides data service through a data LAN and also provides video broadcast service through a video LAN. A wireless LAN subscriber accesses the video LAN through one of a plurality of Video Access Points (VAPs) that broadcast multiple video programs on a channel having a frequency different than the frequency over which the subscriber accesses the data LAN. Each VAP maintains the video channel in a one-way broadcast-only mode to prevent a wireless LAN subscriber from seeking to uplink information on that channel. In this way, the wireless LAN can employ a common protocol for both data and video transmission, and deliver the video streams at the maximum permissible downlink transmission rate.

    摘要翻译： 无线局域网通过数据LAN提供数据服务，并通过视频LAN提供视频广播服务。 无线LAN用户通过在具有与用户访问数据LAN的频率不同的频率的信道上广播多个视频节目的多个视频接入点（VAP）中的一个接入视频LAN。 每个VAP以单向广播模式维护视频频道，以防止无线LAN用户寻求该频道上的上行链路信息。 以这种方式，无线LAN可以采用用于数据和视频传输的公共协议，并且以最大允许的下行链路传输速率传送视频流。

    Method and an apparatus for mapping an mpeg transport stream into ip packets for wlan broadcast
    5.
    发明申请
    Method and an apparatus for mapping an mpeg transport stream into ip packets for wlan broadcast 失效
    用于将mpeg传输流映射成用于wlan广播的ip分组的方法和装置

    公开(公告)号：US20060062200A1

    公开(公告)日：2006-03-23

    申请号：US10541930

    申请日：2004-01-09

    申请人： Charles Wang ,  Kumar Ramaswamy ,  Guillaume Bichot ,  Junbiao Zhang

    发明人： Charles Wang ,  Kumar Ramaswamy ,  Guillaume Bichot ,  Junbiao Zhang

    IPC分类号： H04L12/66

    CPC分类号： H04N21/64707 ,  H04L12/1836 ,  H04L12/189 ,  H04L29/06027 ,  H04L65/1026 ,  H04L65/1036 ,  H04L65/604 ,  H04L65/607 ,  H04L65/608 ,  H04W4/06 ,  H04W4/18 ,  H04W8/26 ,  H04W28/06 ,  H04W28/065 ,  H04W52/0229 ,  H04W72/1273 ,  H04W84/12 ,  Y02D70/142

    摘要： A method for mapping from an MPEG-2 transport stream to an IP-based RTP/UDP/IP stack for broadcasting service in a WLAN. All the mapping functions may be performed in a receiver transcoder (FIG. 2). Mobile devices such as laptop computers, cell phones and PDAs have limited battery power, CPU processing and memory resources. To reduce CPU processing power and consumption battery power in these devices certain data processing functions are achieved in the communicating systems, such as the de-multiplexer function that typically prepares an MPEG-2 for retransmission at the local level. When a transcoder, capable of de-multiplexing and MPEG-2 transport stream receives a program it de-multiplexes the stream based on PIDs assigned to each transport packet. This de-multiplexing function extracts several components from a transport stream: video and audio PES/ES associated with programs and PSI (PAT and PMTs).

    摘要翻译： 一种从MPEG-2传输流映射到用于WLAN中的广播服务的基于IP的RTP / UDP / IP堆栈的方法。 所有映射功能可以在接收机代码转换器（图2）中执行。 诸如膝上型计算机，蜂窝电话和PDA的移动设备具有有限的电池电量，CPU处理和存储器资源。 为了降低这些设备中的CPU处理能力和消耗电池功率，在通信系统中实现了某些数据处理功能，例如通常在本地级准备用于重传的MPEG-2的去多路复用器功能。 当能够解复用和MPEG-2传输流的代码转换器接收到一个程序时，它根据分配给每个传输数据包的PID对数据流进行解复用。 该解复用功能从传输流中提取多个组件：与程序和PSI（PAT和PMT）相关联的视频和音频PES / ES。

    Apparatus and methods for measuring multimedia demand and for maximizing broadcast channel utilization
    9.
    发明授权
    Apparatus and methods for measuring multimedia demand and for maximizing broadcast channel utilization 失效
    用于测量多媒体需求并最大化广播频道利用率的装置和方法

    公开(公告)号：US07765142B2

    公开(公告)日：2010-07-27

    申请号：US10107292

    申请日：2002-03-26

    申请人： Jun Li ,  Kumar Ramaswamy ,  Guillaume Bichot

    发明人： Jun Li ,  Kumar Ramaswamy ,  Guillaume Bichot

    IPC分类号： G06Q40/00

    CPC分类号： G06Q30/08 ,  G06Q40/04

    摘要： The present invention provides apparatus and methods for measuring multimedia demand and for maximizing broadcast channel utilization. A first, two way communications channel or channels, from a customer to a broadcaster are provided, as well as a second broadcast channel, which may be, in some embodiments, combined with the two way channel. A bid cycle is established for available programs, whereby one or more programs is listed as available on said two way channel, whereupon one or more customers may bid on those programs in order to view those programs. If the aggregated bids reached a threshold value, the broadcaster will then broadcast the program to the bidding customers, thus closing the bid cycle. If the threshold is not reached, the bid cycle is unsatisfied.

    摘要翻译： 本发明提供了用于测量多媒体需求并使广播频道利用最大化的装置和方法。 提供了从客户到广播者的第一，双向通信信道或信道，以及在一些实施例中可以与双向信道组合的第二广播信道。 针对可用的程序建立了一个出价周期，其中一个或多个程序在所述双向通道上列出可用，因此一个或多个客户可以对这些程序进行投标以便查看这些程序。 如果汇总出价达到门槛值，广播商将向招标客户广播节目，从而关闭出价周期。 如果未达到阈值，则出价周期不满意。

    System architecture, and method for scheduled downloading services
    10.
    发明授权
    System architecture, and method for scheduled downloading services 有权
    系统架构，以及定时下载服务的方法

    公开(公告)号：US08577348B2

    公开(公告)日：2013-11-05

    申请号：US11883040

    申请日：2005-01-31

    申请人： Jun Li ,  Junbiao Zhang ,  Kumar Ramaswamy

    发明人： Jun Li ,  Junbiao Zhang ,  Kumar Ramaswamy

    IPC分类号： H04L29/06

    CPC分类号： H04L29/06027 ,  H04L65/4084 ,  H04L65/602 ,  H04L67/1095 ,  H04L67/2814 ,  H04L67/288 ,  H04L69/329

    摘要： There is provided a system for providing content through a Content Delivery/distribution Network (CDN) that includes a plurality of storage entities. A Content Requesting device (CR) generates and transmits requests for content. A Content Server (CS) receives the requests from the CR, provides notifications regarding a current location of the content, and at least one of stores the content and interfaces with the CDN to distribute the content to one of the plurality of storage entities. A Content Consuming device (CC) receives the notifications from the CS and retrieves the requested content from one of the CS and the one of the plurality of storage entities based on the current location of the content specified in the notifications.

    摘要翻译： 提供了一种通过包括多个存储实体的内容传送/分发网络（CDN）来提供内容的系统。 内容请求设备（CR）生成并发送内容请求。 内容服务器（CS）从CR接收请求，提供关于内容的当前位置的通知，以及存储与CDN的内容和接口中的至少一个，以将内容分发到多个存储实体之一。 内容消费设备（CC）从CS接收通知，并根据通知中指定的内容的当前位置从CS和多个存储实体中的一个检索所请求的内容。