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    • 21. 发明申请
    • Gain Factor/Matrix for Whole Link Channel Reciprocity in TDD Mimo Relay System
    • 增益因子/矩阵,用于TDD Mimo中继系统中的整个链路信道互惠
    • US20100151793A1
    • 2010-06-17
    • US12622014
    • 2009-11-19
    • Haifeng WangGang WuLihua LiLei SongPing ZhangXiafeng Tao
    • Haifeng WangGang WuLihua LiLei SongPing ZhangXiafeng Tao
    • H04B17/00
    • H04W52/42H04W52/16
    • Measured are received power of a first signal received from a first entity, and received power of a second signal received from a second entity. A gain factor (or a matrix of gain factors if multiple antennas are used) is determined using the measured received powers of the first signal and of the second signal. If transmit power from the apparatus to the second entity is considered as the benchmark, the second signal is forwarded from the apparatus to the first entity using a second signal transmit power that is determined using the gain factor. Or, if transmit power from the apparatus to the first entity is considered as the benchmark, the first signal is forwarded from the apparatus to the second entity using a first signal transmit power that is determined using the gain factor. Method, apparatus, and memory storing computer program are detailed.
    • 测量的是从第一实体接收的第一信号的接收功率,以及从第二实体接收的第二信号的接收功率。 使用测量的第一信号和第二信号的接收功率来确定增益因子(或者如果使用多个天线的增益因子矩阵)。 如果从装置到第二实体的发射功率被认为是基准,则使用使用增益因子确定的第二信号发射功率将第二信号从装置转发到第一实体。 或者,如果从装置到第一实体的发射功率被认为是基准,则使用使用增益因子确定的第一信号发射功率将第一信号从装置转发到第二实体。 详细说明存储计算机程序的方法,装置和存储器。
    • 22. 发明申请
    • METHOD OF FREQUENCY OFFSET COMPENSATION
    • 频偏补偿方法
    • US20080232516A1
    • 2008-09-25
    • US11842398
    • 2007-08-21
    • Fang-Chen ChengLei SongRobert Soni
    • Fang-Chen ChengLei SongRobert Soni
    • H04L27/06
    • H04L5/023H04L27/2657H04L2027/0034
    • The present invention provides a method of processing a baseband signal including user signals transmitted by a plurality of users. The method includes applying frequency offset compensations to the baseband signal, thereby to form respective frequency-shifted baseband signals. Each frequency compensation shifts the baseband signal by a multiple of a selected frequency offset and each resulting frequency-shifted baseband signal includes frequency-shifted user signals. The method also includes assigning at least some of the frequency-shifted user signals to groups. Each group corresponds to one of the frequency compensations and the assignment is carried out so that each group includes frequency-shifted user signals that have an estimated frequency offset that lies within a range determined by the corresponding frequency compensation. The method further includes estimating a frequency offset of each of the user signals based on the frequency-shifted user signal and the frequency compensation of the group including the frequency-shifted user signal.
    • 本发明提供一种处理包括由多个用户发送的用户信号的基带信号的方法。 该方法包括对基带信号应用频率补偿补偿,从而形成相应的频移基带信号。 每个频率补偿将基带信号移位所选频率偏移的倍数,并且每个所得到的频移基带信号包括频移用户信号。 该方法还包括将至少一些频移用户信号分配给组。 每个组对应于频率补偿之一,并且执行分配,使得每个组包括具有位于由对应的频率补偿确定的范围内的估计频率偏移的频移用户信号。 该方法还包括基于频移用户信号和包括频移用户信号的组的频率补偿来估计每个用户信号的频率偏移。
    • 25. 发明授权
    • Method and apparatus for controlling reverse link interference rise and power control instability in a wireless system
    • US06968201B1
    • 2005-11-22
    • US09413036
    • 1999-10-06
    • Asif D. GandhiLei SongMathew ThomasStanley Vitebsky
    • Asif D. GandhiLei SongMathew ThomasStanley Vitebsky
    • H04B7/005H04B7/26H04Q7/20
    • H04W52/146H04W52/24
    • A system and a method for reverse link power control in a wireless communications network generates power adjust commands for mobiles being served by a network base station in a centralized manner by considering overall system performance when an increased interference condition is detected. In one implementation, a base station power control processor adopts a modified reverse inner loop power control (RILPC) and/or a reverse outer loop power control (ROLPC) algorithm when an increased interference condition is detected. According to the modified RILPC algorithm, a percentage of power-up adjust commands which would normally be generated when Eb/No measurements for served mobiles do not meet target Eb/No levels are converted to power down-adjust commands, thereby forcing some mobiles to reduce transmit power, at least temporarily, to constrain interference. When the increased interference condition persists, the percentage of power-up adjust commands which are converted to power-down commands may be changed. According to the modified ROLPC algorithm, the power control processor adjusts target Eb/No levels in a centralized manner based on an overall system state so that only a limited number of target Eb/No levels are allowed to increase when frame erasures occur. By preventing a percentage of target Eb/No level increases, at least temporarily, when frame erasures occur, a percentage of power up-adjust commands are avoided. Therefore, a similar effect to that achieved by the modified RILPC is achieved. In accordance with still a further implementation of the present invention, the modified RILPC algorithm may be used in combination with the modified ROLPC algorithm to provide greater resistance to increased interference conditions.
    • 27. 发明授权
    • Autostereoscopic display apparatus and method
    • 自动立体显示装置及方法
    • US08953241B2
    • 2015-02-10
    • US12953621
    • 2010-11-24
    • Lei Song
    • Lei Song
    • G02B27/22H04N13/04
    • G02B27/2214H04N13/305H04N13/312H04N13/317
    • An autostereoscopic display apparatus is provided for three-dimensional (3D) display. The autostereoscopic display apparatus includes a display panel having a plurality of display elements arranged in a two-dimensional array. The autostereoscopic display apparatus also includes a grating device coupled to the display device and having a plurality of grating elements to guide lights associated with 3D display into predetermined viewing directions. Further, the plurality of grating elements cover the plurality of display elements and are tilted such that a tilted direction of the plurality of grating elements form a non-zero angle with respect to a diagonal direction of the plurality display elements.
    • 提供了一种用于三维(3D)显示的自动立体显示装置。 自动立体显示装置包括具有以二维阵列排列的多个显示元件的显示面板。 自动立体显示装置还包括耦合到显示装置并具有多个光栅元件的光栅装置,以将与3D显示相关联的光引导到预定的观察方向。 此外,多个光栅元件覆盖多个显示元件并且倾斜使得多个光栅元件的倾斜方向相对于多个显示元件的对角线方向形成非零角度。
    • 28. 发明授权
    • Tracking-enhanced three-dimensional display method and system
    • 跟踪增强三维显示方法和系统
    • US08581966B2
    • 2013-11-12
    • US12963622
    • 2010-12-08
    • Liang ChenLei Song
    • Liang ChenLei Song
    • H04N13/04
    • G02B27/0093G02B27/2214G02B27/225H04N13/122H04N13/376
    • A three-dimensional display method is provided in the present disclosure. The three-dimensional display method includes obtaining position information of an observer; and adjusting displaying content of a stereoscopic image according to the position information. A tracking three-dimensional display unit and an image processing device are also provided in the present disclosure. In the present disclosure, three-dimensional displaying contents may be adjusted according to the position information of the observer to introduce movement parallax, so as to achieve mutual effect between the observer and displaying contents, and enhance the sense of reality of three-dimensional displaying.
    • 在本公开中提供了三维显示方法。 三维显示方法包括获取观察者的位置信息; 以及根据位置信息调整立体图像的显示内容。 在本公开中还提供了跟踪三维显示单元和图像处理装置。 在本公开中,可以根据观察者的位置信息来调整三维显示内容以引入移动视差,以便实现观察者和显示内容之间的相互作用,并且增强三维显示的现实感 。
    • 30. 发明申请
    • Interactively Designing a Hardware Implementation of a Graphical Program
    • 交互式设计图形程序的硬件实现
    • US20130246998A1
    • 2013-09-19
    • US13424040
    • 2012-03-19
    • Tianming LiangKosta IlicJonathan HawksAriane Chan-YouGerardo GarciaLei Song
    • Tianming LiangKosta IlicJonathan HawksAriane Chan-YouGerardo GarciaLei Song
    • G06F9/44
    • G06F8/34
    • System and method for managing and specifying hardware implementation of a graphical program. A graphical program that implements an algorithm is stored in a memory of a computer system. The graphical program meets one or more first specified implementation requirements and is targeted for deployment to a programmable hardware element. A plurality of sets of descriptive directives are also stored in the memory, where the descriptive directives are associated with the graphical program and specify one or more additional specified implementation requirements, e.g., memory resource implementations, optimization directives, and so forth, where the additional directives result from programmatic and/or user-specification. Each set of descriptive directives is useable by a synthesis tool to generate a respective hardware configuration program for deployment to the graphical programmable hardware element.
    • 用于管理和指定图形程序的硬件实现的系统和方法。 实现算法的图形程序存储在计算机系统的存储器中。 图形程序满足一个或多个第一指定的实现要求,并且被部署到可编程硬件元件。 多个描述性指令集也存储在存储器中,其中描述性指令与图形程序相关联并且指定一个或多个附加的指定实现要求,例如存储器资源实现,优化指令等,其中额外的 指令源于程序化和/或用户规范。 每个描述性指令集合可由综合工具使用,以生成用于部署到图形可编程硬件元件的相应硬件配置程序。