Method for supporting a plurality of subscribers operating on different frequency bands using a single access point
    1.
    发明授权
    Method for supporting a plurality of subscribers operating on different frequency bands using a single access point 有权
    用于使用单个接入点来支持在不同频带上操作的多个订户的方法

    公开(公告)号:US07382757B2

    公开(公告)日:2008-06-03

    申请号:US10668865

    申请日:2003-09-23

    IPC分类号: H04Q7/24

    CPC分类号: H04W88/08

    摘要: The present invention allows a single access point (“AP”; 100) to support a plurality of devices (102, 104) operating on different frequency bands. During a first period of time, the AP initiates a contention free period at a first frequency. The AP switches from the first frequency to a second frequency, and communicates with devices operating at the second frequency. Periodically during the first period of time, the AP temporarily ceases communication with devices operating at the second frequency to initiate a contention free period at the second frequency, switch from the second frequency to the first frequency, initiate another contention free period at the first frequency, and switch from the first frequency back to the second frequency.

    摘要翻译: 本发明允许单个接入点(“AP”; 100)支持在不同频带上操作的多个设备(102,104)。 在第一时间段内,AP以第一频率发起无竞争期。 AP从第一频率切换到第二频率,并与在第二频率工作的设备进行通信。 在第一时间周期期间,AP暂时停止与在第二频率工作的设备的通信,以在第二频率发起无争用时段,从第二频率切换到第一频率,以第一频率发起另一争用自由周期 ,并从第一频率切换回第二频率。

    Method and apparatus for organizing and scheduling multimedia data transfers over a wireless channel
    2.
    发明授权
    Method and apparatus for organizing and scheduling multimedia data transfers over a wireless channel 有权
    通过无线信道组织和调度多媒体数据传输的方法和装置

    公开(公告)号:US07002985B2

    公开(公告)日:2006-02-21

    申请号:US09760985

    申请日:2001-01-16

    IPC分类号: H04L12/43

    CPC分类号: H04W72/1242

    摘要: A radio frequency communications system (100) includes wireless terminals (102) and base sites (104). The wireless terminals communicate with the base sites over a radio frequency channel (106). The base sites are interconnected to each other and other network elements via a packet network. The communication system has a radio frequency channel (400) with time slots (406, 408) for transmission of both delay-sensitive data, such as streaming audio and video, and non-delay-sensitive data. A method and apparatus are provided for determining whether a time slot in the radio frequency channel is to be allocated to delay-sensitive data or non-delay-sensitive data (704, 706, 708). Each packet of data transmitted over the wireless channel has a type of service field (900). The type of service field has a precedence or priority value (902) and a service type (904). The priority values are used to determine which packet should be transmitted across the radio frequency channel next and the service type determines the transmission protocol.

    摘要翻译: 射频通信系统(100)包括无线终端(102)和基站(104)。 无线终端通过射频信道(106)与基站通信。 基站经由分组网络彼此互连和其它网络元件。 通信系统具有用于传输诸如流式音频和视频之类的延迟敏感数据以及非延迟敏感数据的具有时隙(406,408)的射频信道(400)。 提供一种方法和装置,用于确定射频信道中的时隙是否被分配给延迟敏感数据或非延迟敏感数据(704,706,708)。 通过无线信道发送的每个数据分组具有一种服务字段(900)。 服务类型具有优先级或优先权值(902)和服务类型(904)。 优先级值用于确定哪个分组应在下一个射频信道上传输,业务类型决定传输协议。

    Time aligned group audio reproduction in narrowband and broadband networks
    3.
    发明授权
    Time aligned group audio reproduction in narrowband and broadband networks 有权
    窄带和宽带网络中的时间对齐组音频再现

    公开(公告)号:US07899193B2

    公开(公告)日:2011-03-01

    申请号:US12133882

    申请日:2008-06-05

    IPC分类号: H04B3/00

    摘要: A method for synchronizing media reproduction across heterogeneous networks is presented. The networks include end-to-end IP broadband and narrowband simulcast networks that contain broadband and narrowband devices associated with a common communications group. A controller in the networks determines delay times for reproduction of a media stream across devices in the networks and establishes the longest delay time. The longest delay time is used to calculate appropriate transmission and reproduction timestamps to permit the devices to reproduce the provided media stream in synchronization. Narrowband base stations repeat the media stream at the time specified by a transmission timestamp, and broadband end devices reproduce the media stream at the time specified by a reproduction timestamp. By synchronizing the presentation time, the devices present the media at substantially the same time and are granted fair rights to communicate with one another.

    摘要翻译: 介绍了跨异构网络同步媒体再现的方法。 这些网络包括端到端IP宽带和窄带同步网络,其中包含与公共通信组相关联的宽带和窄带设备。 网络中的控制器确定跨越网络中的设备的媒体流的再现的延迟时间并建立最长的延迟时间。 最长的延迟时间用于计算适当的传输和再现时间戳,以允许设备同步地再现所提供的媒体流。 窄带基站在由传输时间戳指定的时间重复媒体流,并且宽带终端设备在由再现时间戳指定的时间再现媒体流。 通过同步演示时间,设备在同一时间呈现媒体,并被授予相互通信的公平的权限。

    Compensation for nonuniform delayed group communications
    4.
    发明授权
    Compensation for nonuniform delayed group communications 有权
    非均匀延迟群组通信的补偿

    公开(公告)号:US08111843B2

    公开(公告)日:2012-02-07

    申请号:US12268864

    申请日:2008-11-11

    IPC分类号: H04R3/00 H04R1/40 H04R29/00

    摘要: A method for synchronizing audio reproduction in collocated end devices is presented. Each of the devices auto-correlates using noise to determine a threshold prior to the antenna receiving an audio signal. When the devices receive a common audio signal, they provide audio outputs. Each device cross-correlates its audio output with the audio outputs of the other devices. The timing of the audio output of each device is then adjusted such that the audio outputs of all of the devices align temporally with the lagging or leading device.

    摘要翻译: 提出了一种用于在并置终端设备中同步音频再现的方法。 每个设备使用噪声自动相关,以确定天线接收音频信号之前的阈值。 当设备接收到公共音频信号时,它们提供音频输出。 每个设备将其音频输出与其他设备的音频输出互相关。 然后调整每个设备的音频输出的定时,使得所有设备的音频输出在时间上与滞后或引导设备进行对准。

    Method for presence information subscription in a group communications system
    5.
    发明授权
    Method for presence information subscription in a group communications system 有权
    群组通信系统中存在信息订阅的方法

    公开(公告)号:US09516123B2

    公开(公告)日:2016-12-06

    申请号:US12544508

    申请日:2009-08-20

    IPC分类号: G06F3/00 H04L29/08 H04W4/08

    摘要: In a group communications system, a group watcher module subscribes to presentities of interest for a particular group by communicating, to at least one presence server module, a set of subscriptions to a plurality of presentities, wherein each subscription contains a set of event notification criteria for a presentity. When the group watcher module detects a change in presence information for the set of subscriptions, it determines current members of the group and distributes the change in presence information to the current members.

    摘要翻译: 在群组通信系统中,群组观察者模块通过向至少一个在场服务器模块传达对多个呈现集合的订阅集合来订阅特定群组感兴趣的呈现度,其中每个订阅包含一组事件通知标准 为现实。 当组观察者模块检测到该订阅集的存在信息的改变时,它确定该组的当前成员并将该存在信息中的改变分发给当前成员。

    Method and apparatus for non-linear decoding of video frames of a video stream encoded using an intra macroblock refresh process
    7.
    发明授权
    Method and apparatus for non-linear decoding of video frames of a video stream encoded using an intra macroblock refresh process 有权
    使用帧内宏块刷新处理编码的视频流的视频帧进行非线性解码的方法和装置

    公开(公告)号:US08699571B2

    公开(公告)日:2014-04-15

    申请号:US12908938

    申请日:2010-10-21

    IPC分类号: H04N7/12

    摘要: A video decoder system receives a user request for non-linear decoding of at least one video frame from a video stream encoded using an Intra macroblock refresh process. The request includes a first frame offset corresponding to a user requested first decoding frame within the video stream for commencing the non-linear decoding. The decoder system: determines an Intra-refresh period corresponding to at least one encoded Predictive frame in the video stream during which all macroblocks in the user requested first decoding frame are Intra encoded at least once; determines a second frame offset as a function of the Intra-refresh period and the user requested first frame offset, the second frame offset corresponding to a second decoding frame within the video stream. Finally, the decoder system decodes the video stream starting at the second decoding frame and suppresses the display of the video stream until the first decoding frame.

    摘要翻译: 视频解码器系统从使用帧内宏块刷新处理编码的视频流接收对至少一个视频帧的非线性解码的用户请求。 该请求包括与用于开始非线性解码的视频流内的用户请求的第一解码帧相对应的第一帧偏移。 解码器系统:确定对应于视频流中的至少一个已编码预测帧的刷新周期,在此期间,用户请求的第一解码帧中的所有宏块都被内部编码至少一次; 确定作为所述刷新周期和所述用户请求的第一帧偏移的函数的第二帧偏移,所述第二帧偏移对应于所述视频流内的第二解码帧。 最后,解码器系统从第二解码帧开始解码视频流,并且抑制直到第一解码帧的视频流的显示。

    Method and apparatus to facilitate creating ancillary information regarding errored image content
    8.
    发明授权
    Method and apparatus to facilitate creating ancillary information regarding errored image content 有权
    促进创建关于错误图像内容的辅助信息的方法和装置

    公开(公告)号:US07995858B2

    公开(公告)日:2011-08-09

    申请号:US11773680

    申请日:2007-07-05

    IPC分类号: G06K9/40

    CPC分类号: H04N19/895 H04N21/4425

    摘要: Pixels in a provided image for which the content has been provided in error are identified. This image content is processed to provide a version of the image wherein the error is at least partially concealed while also creating ancillary information regarding the errored pixel(s) and the spatial location to which such pixel(s) corresponds to thereby provide a record that describes which pixels in the image content were provided in error. An optional user-selectable option can permit displaying either of the aforementioned corrected version of the image wherein the error is at least partially concealed and a version of the image wherein the ancillary information is used to depict the errored pixel(s) such that provided-in-error pixels are readily distinguished from correctly-provided pixels.

    摘要翻译: 识别提供了错误内容的提供图像中的像素。 该图像内容被处理以提供图像的版本,其中错误至少部分地被隐藏,同时还创建关于错误像素和这样的像素对应的空间位置的辅助信息,从而提供记录, 描述图像内容中的哪些像素被错误地提供。 可选择的用户可选择选项可以允许显示所述图像的至少部分隐藏的所述图像的修正版本和图像的版本,其中所述辅助信息用于描绘错误像素, 错误像素容易地与正确提供的像素区分开。

    FLOOR CONTROL IN A COMMUNICATION SYSTEM
    9.
    发明申请
    FLOOR CONTROL IN A COMMUNICATION SYSTEM 有权
    通信系统中的地面控制

    公开(公告)号:US20090109994A1

    公开(公告)日:2009-04-30

    申请号:US12210644

    申请日:2008-09-15

    IPC分类号: G06F15/16

    摘要: A method (400) of implementing floor control in a communications system (100). The method can include receiving a random symbol from each of a plurality of communication devices (104, 106, 108, 110, 112) or network nodes (204, 206, 208, 210, 212). From the plurality of random symbols, a random symbol that satisfies a criteria can be identified. Floor ownership can be granted to a selected one of the communication devices associated with the identified random symbol or from which the identified random symbol was received.

    摘要翻译: 一种在通信系统(100)中实现楼层控制的方法(400)。 该方法可以包括从多个通信设备(104,106,108,110,112)或网络节点(204,206,208,210,212)中的每一个接收随机符号。 从多个随机符号可以识别满足条件的随机符号。 可以向与所识别的随机符号相关联的所选通信设备中授权楼层所有权,或者从其接收所标识的随机符号。

    Method for optimized local routing between mobile nodes
    10.
    发明授权
    Method for optimized local routing between mobile nodes 有权
    在移动节点之间优化本地路由的方法

    公开(公告)号:US07206859B2

    公开(公告)日:2007-04-17

    申请号:US10782601

    申请日:2004-02-18

    IPC分类号: G06F15/16 G06F15/173

    CPC分类号: H04W8/082 H04W8/06 H04W80/04

    摘要: In a system (100) that includes at least one mobility server (40, 50), at least one edge mobility agent (60) and a plurality of mobile nodes (20, 30), a method for local routing between two mobile nodes that includes the steps of: receiving a first care-of address for a first mobile node; detecting an edge mobility agent having knowledge of the first care-of address; determining, based upon at least one condition, that the edge mobility agent can perform local routing of at least one datagram for the first mobile node; and instructing the edge mobility agent to perform local routing of at least one datagram between the first mobile node and a second mobile node that has a second care-of address that is known to the edge mobility agent.

    摘要翻译: 在包括至少一个移动性服务器(40,50),至少一个边缘移动性代理(60)和多个移动节点(20,30)的系统(100)中,一种用于两个移动节点之间的本地路由的方法, 包括以下步骤:接收第一移动节点的第一转交地址; 检测具有第一转交地址知识的边缘移动代理; 基于至少一个条件确定所述边缘移动性代理可以对所述第一移动节点执行至少一个数据报的本地路由; 以及指示所述边缘移动代理在所述第一移动节点和所述边缘移动代理已知的具有第二转交地址的第二移动节点之间执行至少一个数据报的本地路由。