Multi-point video conference system and media processing method thereof
    2.
    发明授权
    Multi-point video conference system and media processing method thereof 有权
    多点视频会议系统及其媒体处理方法

    公开(公告)号:US08767591B2

    公开(公告)日:2014-07-01

    申请号:US11830057

    申请日:2007-07-30

    摘要: This invention discloses a multi-point video conference system and the media processing method thereof. The multi-point video conference system includes a softswitch, an application server and terminals. The softswitch is responsible for protocol adaptation and calling process, and performing the interconnection with other systems as an external interface of the conference system. The application server is responsible for service logic control and charging. The characteristic of this invention lies in that: the terminals behaved as conference participants including a conference chairman and ordinary conference members. Any terminal registered on the softswitch could be a conference member, and the conference chairman must be a SIP soft terminal with video conference service capability in order to realize the media control. The invention realizes the media control on the basis of the soft terminal behaved as the conference chairman, therefore any terminal user that has registered on the softswitch can initiate or participate a multi-point video conference, and the participant terminal number of the video conference is not limited.

    摘要翻译: 本发明公开了一种多点视频会议系统及其媒体处理方法。 多点视频会议系统包括软交换,应用服务器和终端。 软交换机负责协议适配和呼叫过程,并与其他系统进行互联,作为会议系统的外部接口。 应用服务器负责业务逻辑控制和计费。 本发明的特征在于:终端作为会议参与者,包括会议主席和普通会议成员。 注册在软交换机上的任何终端可以是会议成员,会议主席必须是具有视频会议服务能力的SIP软终端,以实现媒体控制。 本发明基于作为会议主席的软终端实现媒体控制,因此在软交换机上注册的任何终端用户可以发起或参与多点视频会议,并且视频会议的参与者终端号码是 不限于

    Multi-point video conference system and media processing method thereof

    公开(公告)号:US08576749B2

    公开(公告)日:2013-11-05

    申请号:US11830057

    申请日:2007-07-30

    IPC分类号: H04L12/16

    摘要: This invention discloses a multi-point video conference system and the media processing method thereof. The multi-point video conference system includes a softswitch, an application server and terminals. The softswitch is responsible for protocol adaptation and calling process, and performing the interconnection with other systems as an external interface of the conference system. The application server is responsible for service logic control and charging. The characteristic of this invention lies in that: the terminals behaved as conference participants including a conference chairman and ordinary conference members. Any terminal registered on the softswitch could be a conference member, and the conference chairman must be a SIP soft terminal with video conference service capability in order to realize the media control. The invention realizes the media control on the basis of the soft terminal behaved as the conference chairman, therefore any terminal user that has registered on the softswitch can initiate or participate a multi-point video conference, and the participant terminal number of the video conference is not limited.

    Electronic device
    4.
    发明申请
    Electronic device 审中-公开
    电子设备

    公开(公告)号:US20050264537A1

    公开(公告)日:2005-12-01

    申请号:US10929261

    申请日:2004-08-30

    申请人: Chun Yang

    发明人: Chun Yang

    CPC分类号: G06F3/03547

    摘要: An electronic device. The electronic device includes a housing and a touchpad module disposed in the housing. The touchpad module includes a body, a light permeable element, and a light source. The body has a surface. The light permeable element is disposed adjacent to the surface. The light source is disposed near the body, emitting a light passing through the light permeable element.

    摘要翻译: 电子设备。 电子设备包括壳体和设置在壳体中的触摸板模块。 触摸板模块包括主体,透光元件和光源。 身体有一个表面。 透光元件邻近表面设置。 光源设置在身体附近,发射穿过透光元件的光。

    Cooperative position location via wireless data link using broadcast digital transmissions
    5.
    发明授权
    Cooperative position location via wireless data link using broadcast digital transmissions 有权
    通过使用广播数字传输的无线数据链路的协作位置定位

    公开(公告)号:US08063825B1

    公开(公告)日:2011-11-22

    申请号:US12436868

    申请日:2009-05-07

    申请人: Chun Yang

    发明人: Chun Yang

    IPC分类号: G01S3/02

    摘要: A cooperative position location device (CPLD) that integrates a broadcast digital transmission (BDT) receiver, a data link transceiver, and a displacement sensor; a computer program product tangibly stored in computer-readable media; and associated methods for receiving and processing special codes embedded in BDT signals from a plurality of transmitters to produce time of arrival (TOA) measurements thereof; for sending and receiving special messages between cooperative position location devices (CPLDs) to produce time difference of arrival (TDOA) of common events of BDT at and time of flight (TOF) measurements between the CPLDs; and for integrating differential and relative ranges between CPLDs to a plurality of BDT transmitters and displacement measurements to yield a joint position solution of the CPLDs.

    摘要翻译: 集成广播数字传输(BDT)接收机,数据链路收发器和位移传感器的协作位置定位设备(CPLD); 计算机程序产品有形地存储在计算机可读介质中; 以及用于接收和处理嵌入在来自多个发射机的BDT信号中的特殊代码以产生到达时间(TOA)测量的相关方法; 用于在协同位置定位设备(CPLD)之间发送和接收特殊消息,以产生CPLD之间的BDT的常见事件和飞行时间(TOF)测量的时间差(TDOA); 并且用于将CPLD之间的差分和相对范围集成到多个BDT发射器和位移测量,以产生CPLD的联合位置解。

    METHOD AND DEVICE FOR TRACKING WEAK GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) SIGNALS
    6.
    发明申请
    METHOD AND DEVICE FOR TRACKING WEAK GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) SIGNALS 失效
    跟踪全球导航卫星系统(GNSS)信号的方法和装置

    公开(公告)号:US20070205940A1

    公开(公告)日:2007-09-06

    申请号:US11618131

    申请日:2006-12-29

    申请人: Chun Yang Shaowei Han

    发明人: Chun Yang Shaowei Han

    IPC分类号: G01S5/14

    CPC分类号: G01S19/24 G01S19/29 G01S19/37

    摘要: A Global Navigation Satellite System (GNSS) receiver and associated method capable of tracking weak GNSS signals from a plurality of GNSS satellites. In a preferred embodiment, code and carrier tracking loops are initially closed around the code phase, carrier frequency, and data bit edge estimates handed over from an acquisition mode. In subsequent tracking, early, prompt, and late copies of the code replica are correlated with the incoming signal. The prompt correlations are coherently integrated over an extended updating interval for data bit edge and sign estimation as well as for carrier phase and frequency error discrimination whereas the early and late correlations are used for code error discrimination. Code delay and carrier phase and frequency errors are used to update the code and carrier tracking loop filters. Together with data bits, they form observables of a GNSS signal's time and frequency parameters for timing and position fixing.

    摘要翻译: 一种能够跟踪来自多个GNSS卫星的弱GNSS信号的全球导航卫星系统(GNSS)接收机和相关方法。 在优选实施例中,代码和载波跟踪循环首先围绕从采集模式切换的码相位,载波频率和数据比特边缘估计值闭合。 在随后的跟踪中,代码副本的早期,及时和晚期副本与输入信号相关。 对于数据位边沿和符号估计以及载波相位和频率误差鉴别的延迟更新间隔,快速相关被相干地集成,而早期和晚期相关用于码错误鉴别。 代码延迟和载波相位和频率误差用于更新代码和载波跟踪环路滤波器。 与数据位一起,它们形成GNSS信号的时间和频率参数的观测值,用于定时和位置固定。

    Role-based access control management for multiple heterogeneous application components
    7.
    发明申请
    Role-based access control management for multiple heterogeneous application components 失效
    基于角色的多个异构应用程序组件的访问控制管理

    公开(公告)号:US20070056026A1

    公开(公告)日:2007-03-08

    申请号:US11221630

    申请日:2005-09-08

    IPC分类号: H04L9/32

    CPC分类号: G06F21/6236

    摘要: Embodiments of the present invention address deficiencies of the art in respect to access control and provide a method, system and computer program product for access control management for a collection of heterogeneous application components. In a first embodiment, a data processing system for role-based access control management for multiple heterogeneous application components can include at least one business role descriptor associating a business role with multiple, different application roles for corresponding, disparate application components. The system also can include at least one access policy associating a user with the business role. Finally, the system can include policy deployment logic include program code enabled to process the access policy to assign the user to the different application roles in the disparate application components.

    摘要翻译: 本发明的实施例解决了本领域在访问控制方面的缺陷,并提供了用于异构应用组件的集合的访问控制管理的方法,系统和计算机程序产品。 在第一实施例中,用于多个异构应用组件的用于基于角色的访问控制管理的数据处理系统可以包括将业务角色与用于相应的不同应用组件的多个不同应用角色相关联的至少一个业务角色描述符。 系统还可以包括将用户与业务角色相关联的至少一个访问策略。 最后,系统可以包括策略部署逻辑,包括能够处理访问策略的程序代码,以将用户分配给不同应用程序组件中的不同应用程序角色。

    Method and device for rapidly extracting time and frequency parameters from high dynamic direct sequence spread spectrum radio signals under interference
    9.
    发明授权
    Method and device for rapidly extracting time and frequency parameters from high dynamic direct sequence spread spectrum radio signals under interference 有权
    用于从干扰下的高动态直接序列扩频无线电信号中快速提取时间和频率参数的方法和装置

    公开(公告)号:US06407699B1

    公开(公告)日:2002-06-18

    申请号:US09550064

    申请日:2000-04-14

    申请人: Chun Yang

    发明人: Chun Yang

    IPC分类号: H04K100

    摘要: A GPS receiver and associated method that embodies high-dynamic, fast acquisition, and interference-suppressing capabilities for the reception and processing of GPS signals from a plurality of GPS satellites to produce GPS signal time and frequency parameters and navigation fixes. The GPS receiver includes an antenna and an analog front-end to intercept the incoming radio-frequency signal, band-limiting amplify the signal, and to convert it to an appropriate intermediate frequency so that it may be converted to digital form. One or more high-speed digital signal processors (DSP) constitute an all digital software baseband processor that process the sampled and quantified signals to form a two-dimensional delay-Doppler map of correlation power and to extract the signal time and frequency parameters and navigation data. The baseband processor is organized into functionally identical channels, each dynamically assigned to a different satellite visible. The baseband processor performs the incoming signal time-tagging, transformation, replica generation, interference-suppressing, delay-Doppler mapping and frequency uncertainty planning. The baseband processor also performs integration for larger processing gain, parameter extraction, and operational management. A relatively slow-speed microprocessor, coupled to the baseband processor, integrates the signal time and frequency parameters and navigation data from a plurality of GPS satellites to produce a navigation solution by a Kalman filter or a least-squares estimator.

    摘要翻译: GPS接收机和相关方法,其包含用于从多个GPS卫星接收和处理GPS信号的高动态,快速获取和干扰抑制能力,以产生GPS信号时间和频率参数以及导航定位。 GPS接收机包括天线和模拟前端,用于截取输入的射频信号,对信号进行频带限幅放大,并将其转换为适当的中频,从而将其转换为数字形式。 一个或多个高速数字信号处理器(DSP)构成全数字软件基带处理器,处理采样和量化的信号以形成相关功率的二维延迟多普勒图,并提取信号时间和频率参数和导航 数据。 基带处理器被组织成功能相同的信道,每个信道动态分配给不同的卫星可见。 基带处理器执行输入信号时间标记,变换,副本生成,干扰抑制,延迟多普勒映射和频率不确定性规划。 基带处理器还可以实现更大的处理增益,参数提取和操作管理的集成。 耦合到基带处理器的相对低速的微处理器将来自多个GPS卫星的信号时间和频率参数以及导航数据整合,以通过卡尔曼滤波器或最小二乘估计器产生导航解。

    Method of actuating and an actuator
    10.
    发明授权
    Method of actuating and an actuator 失效
    执行方法和执行器

    公开(公告)号:US08562805B2

    公开(公告)日:2013-10-22

    申请号:US10579684

    申请日:2004-11-17

    IPC分类号: G01N27/27 B81B7/00

    摘要: A method of actuating, comprising: filling at least a portion of a tube (21) with a liquid (19) containing electrolytes, the tube (21) having an inner surface that is electrically chargeable when in contact with the liquid (19); positioning an object (28) in fluid communication with the liquid in the tube; and applying an electrical field (46) along a lengthwise axis across the tube at said portion for producing a pressure in the liquid. The pressure in the liquid exerts a force on the object so as to actuate the object (28, 30). An actuator (20) is also disclosed.

    摘要翻译: 一种致动方法,包括:用包含电解质的液体(19)填充管(21)的至少一部分,所述管(21)具有当与液体(19)接触时可充电的内表面; 定位物体(28)与管中的液体流体连通; 以及在所述部分处沿着纵向轴线穿过管施加电场(46),以产生液体中的压力。 液体中的压力对物体施加力,从而致动物体(28,30)。 还公开了致动器(20)。