Technique for video broadcasting in wireless lan
    1.
    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

    IPC分类号: H04N7/18

    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
    2.
    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

    IPC分类号: H04L12/66

    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。

    Identity protection in a lan-universal radiotelephone system
    3.
    发明申请
    Identity protection in a lan-universal radiotelephone system 有权
    LAN通用无线电话系统中的身份保护

    公开(公告)号:US20050202815A1

    公开(公告)日:2005-09-15

    申请号:US10524183

    申请日:2003-08-11

    摘要: A mobile wireless terminal, upon transitioning from a wireless telephony network to a wireless Local Area Network (LAN), seeks identification by sending the same identity information used for identification in the wireless telephony network. Upon receipt of the identity information, a wireless LAN Access Server in the wireless telephony network identifies a Serving General Packet Radio Service Serving Node (SGSN) that had last served the wireless terminal in the wireless telephony network prior to transition. The wireless LAN Access Server forwards the identity information to the SGSN, which, in turn, provides an identification response for validating the terminal.

    摘要翻译: 移动无线终端在从无线电话网络转变到无线局域网(LAN)时,通过在无线电话网络中发送用于识别的相同身份信息来寻求识别。 在接收到身份信息后,无线电话网络中的无线LAN接入服务器识别在转换之前最后服务于无线电话网络中的无线终端的服务通用分组无线服务服务节点(SGSN)。 无线LAN接入服务器将身份信息转发给SGSN,SGSN再次提供用于验证终端的识别响应。

    Seamless public wireless local area network user authentication
    4.
    发明申请
    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:US20050243778A1

    公开(公告)日:2005-11-03

    申请号:US10514311

    申请日:2003-05-13

    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。

    Method for wlan exclusive downlink channel
    5.
    发明申请
    Method for wlan exclusive downlink channel 审中-公开
    wlan专用下行链路信道的方法

    公开(公告)号:US20060153148A1

    公开(公告)日:2006-07-13

    申请号:US10545244

    申请日:2004-02-27

    IPC分类号: H04Q7/24

    摘要: A wireless local area network (WLAN) adheres to ANSI/IEEE 802.11 standards and communicates with user terminals (UTs) in a coverage region. The WLAN communicates video and audio to the mobile terminals over a downlink channel. In order to maximize quality of service, the system provides for a method of inhibiting the mobiles terminals from attempting to gain control of the downlink channel during transmission of program information. In particular, the WLAN access point transmits data frames that are separated in inter-frame time period that is shorter than a first inter-frame period defined by the communications standard for allowing a device to gain control of the transmission channel.

    摘要翻译: 无线局域网(WLAN)遵守ANSI / IEEE 802.11标准,并与覆盖区域内的用户终端(UT)进行通信。 WLAN通过下行链路信道将视频和音频传送到移动终端。 为了最大限度地提高服务质量,该系统提供一种抑制移动终端在传送节目信息期间尝试获得对下行链路信道的控制的方法。 特别地,WLAN接入点发送在帧间间隔中分离的数据帧,其短于由通信标准定义的第一帧间周期,以允许设备获得传输信道的控制。

    Mobile terminal identity protection through home location register modification
    6.
    发明申请
    Mobile terminal identity protection through home location register modification 有权
    移动终端身份保护通过本地位置寄存器修改

    公开(公告)号:US20060116122A1

    公开(公告)日:2006-06-01

    申请号:US10524177

    申请日:2003-08-11

    IPC分类号: H04Q7/20

    摘要: Secure access by a mobile wireless terminal of a wireless telephony network is achieved by having a Home Location Register store the terminal's temporary and permanent identities. Upon accessing the network following initial registration, the terminal sends a temporary identity to a Serving GPRS Support Node (SGSN). If no serving node in the network knows the terminal, the terminal need not sent its permanent identity in clear as was previously required. Rather, the serving node need only query the HLR since the HLR can map the terminal's temporary identity to its permanent identity. In this way, the permanent identity of the mobile wireless terminal remains secure.

    摘要翻译: 无线电话网络的移动无线终端的安全接入是通过使归属位置寄存器存储终端的临时和永久身份来实现的。 在初始注册之后访问网络时,终端向服务GPRS支持节点(SGSN)发送临时身份。 如果网络中没有服务节点知道终端,则终端不需要像之前所要求的那样清楚地发送其永久身份。 相反,服务节点仅需要查询HLR,因为HLR可以将终端的临时身份映射到其永久身份。 以这种方式,移动无线终端的永久身份保持安全。

    Certificate based authentication authorization accounting scheme for loose coupling interworking
    7.
    发明申请
    Certificate based authentication authorization accounting scheme for loose coupling interworking 有权
    基于证书的认证授权计费方案,用于松耦合互通

    公开(公告)号:US20050154909A1

    公开(公告)日:2005-07-14

    申请号:US10512506

    申请日:2003-03-13

    摘要: A method of Authentication Authorization and Accounting (AAA) in an interworking between first and second networks that do not belong in the same asministrative domain, using certificate based transactions. In the method according to the invention, the second network sends a public key to the first network, and a certificate to a mobile device. The certificate includes information regarding the subscription level of the mobile device and is signed with a private key of the second network. Upon detection of the first network the mobile device transmits the certificate and the first network authenticates the certificate using the public and private keys of the second network, and authorizes access to the network in response. The first network then sends a session key encrypted with a public key of the mobile device. The mobile device decrypts the session key with a private key and access the first network using the session key. In this manner, interworking is implemented without requiring the deployment of a special interworking function to bridge between the two different types of networks.

    摘要翻译: 在第一和第二网络之间的互操作中的认证授权和计费(AAA)的方法不属于同一个管理域,使用基于证书的事务。 在根据本发明的方法中,第二网络向第一网络发送公共密钥,向移动设备发送证书。 证书包括关于移动设备的订阅级别的信息,并且用第二网络的私钥进行签名。 当检测到第一网络时,移动设备发送证书,并且第一网络使用第二网络的公钥和私钥对证书进行认证,并且响应地授权对网络的访问。 然后,第一网络发送用移动设备的公开密钥加密的会话密钥。 移动设备用私钥解密会话密钥并使用会话密钥访问第一网络。 以这种方式,实现互通,而不需要部署特殊的互通功能来在两种不同类型的网络之间桥接。

    Heat-Stable Concentrated Milk Product
    9.
    发明申请
    Heat-Stable Concentrated Milk Product 有权
    热稳定浓奶产品

    公开(公告)号:US20130064944A1

    公开(公告)日:2013-03-14

    申请号:US13565561

    申请日:2012-08-02

    IPC分类号: A23C3/02 A23C1/16 A23C9/142

    摘要: The invention provides a stable concentrated dairy liquid, such as concentrated milk, with improved flavor, color, and mouthfeel, and a method of production thereof. The method utilizes specific thermal treatments to produce the stable concentrated dairy liquid to which a stabilizer and mouthfeel enhancer are added. The resulting products have a sterilization value Fo of at least 5 that is also resistant to gelling and browning during high temperature sterilization and is also resistant to gelling and browning during storage for greater than six months. The method balances such thermal treatments with addition of stabilizer and enhancer to achieve the desired flavor/mouthfeel and sterilization and to achieve reduced level of soluble protein in the concentrated milk prior to concentration to resist gelation and minimize browning. Moreover, such processing may be utilized in a milk that is concentrated to a factor of 2.7 fold or higher and contains at least 8.5 percent protein.

    摘要翻译: 本发明提供了具有改善的风味,颜色和口感的稳定的浓缩乳液,例如浓缩乳及其生产方法。 该方法利用特定的热处理来生产稳定剂和口感增强剂所添加的稳定的浓缩乳制品液体。 所得产品具有至少5的灭菌值Fo,其在高温灭菌期间也耐胶凝和褐变,并且在储存期间也耐胶凝和褐变超过六个月。 该方法平衡这种热处理,加入稳定剂和增强剂以达到所需的风味/口感和灭菌,并且在浓缩之前达到降低浓缩乳中的可溶性蛋白水平以抵抗凝胶化并使褐变最小化。 此外,这种处理可以用于浓缩至2.7倍或更高因子并且含有至少8.5%蛋白质的乳汁中。