Head pose estimation using RGBD camera
    61.
    发明授权
    Head pose estimation using RGBD camera 有权
    使用RGBD摄像头的头部姿态估计

    公开(公告)号:US09582707B2

    公开(公告)日:2017-02-28

    申请号:US13456061

    申请日:2012-04-25

    IPC分类号: H04N13/02 G06K9/00 G06T7/00

    摘要: A three-dimensional pose of the head of a subject is determined based on depth data captured in multiple images. The multiple images of the head are captured, e.g., by an RGBD camera. A rotation matrix and translation vector of the pose of the head relative to a reference pose is determined using the depth data. For example, arbitrary feature points on the head may be extracted in each of the multiple images and provided along with corresponding depth data to an Extended Kalman filter with states including a rotation matrix and a translation vector associated with the reference pose for the head and a current orientation and a current position. The three-dimensional pose of the head with respect to the reference pose is then determined based on the rotation matrix and the translation vector.

    摘要翻译: 基于在多个图像中捕获的深度数据来确定被摄体头部的三维姿态。 头部的多个图像例如通过RGBD照相机被捕获。 使用深度数据确定头部相对于参考姿势的姿态的旋转矩阵和平移向量。 例如,可以在多个图像中的每一个中提取头上的任意特征点,并将其与相应的深度数据一起提供给扩展卡尔曼滤波器,该扩展卡尔曼滤波器的状态包括旋转矩阵和与头部的参考姿势相关联的平移向量 当前方向和当前位置。 然后基于旋转矩阵和平移向量来确定头部相对于参考姿势的三维姿态。

    Access channel load management in a wireless communication system
    62.
    发明授权
    Access channel load management in a wireless communication system 有权
    无线通信系统中的接入信道负载管理

    公开(公告)号:US09148893B2

    公开(公告)日:2015-09-29

    申请号:US12393648

    申请日:2009-02-26

    申请人: Ramin Rezaiifar

    发明人: Ramin Rezaiifar

    摘要: Techniques for managing the load of an access channel in a wireless communication system are described. In an aspect, the load of the access channel may be controlled by having each terminal regulates its use of the access channel (e.g., its rate of system access) based on a rate control algorithm (e.g., token bucket). The rate control algorithm may maintain information on past activities of a terminal and may regulate the use of the access channel by the terminal based on its past activities in order to control the access channel load and achieve fairness. The system may determine at least one parameter value for the rate control algorithm based on load conditions and may broadcast the at least one parameter value to terminals. Each terminal may regulate its use of the access channel based on the at least one parameter value received from the system.

    摘要翻译: 描述用于管理无线通信系统中的接入信道的负载的技术。 在一方面,可以通过使每个终端基于速率控制算法(例如令牌桶)来调整其对接入信道的使用(例如,其系统接入速率)来控制接入信道的负载。 速率控制算法可以维护关于终端的过去活动的信息,并且可以基于其过去的活动来调整终端对接入信道的使用,以便控制接入信道负载并实现公平性。 系统可以基于负载条件确定速率控制算法的至少一个参数值,并且可以向终端广播至少一个参数值。 每个终端可以基于从系统接收的至少一个参数值来调节其对接入信道的使用。

    Method and apparatus for interference management
    63.
    发明授权
    Method and apparatus for interference management 有权
    干扰管理方法和装置

    公开(公告)号:US08923212B2

    公开(公告)日:2014-12-30

    申请号:US12191250

    申请日:2008-08-13

    摘要: In some aspect restricted access nodes are assigned to a designated common channel while access terminals that are in active communication with a macro access node may selectively be assigned to the designated channel. In some aspect an access terminal associated with macro access node may perform a handoff to a different carrier when the access terminal is in the vicinity of a coverage area of a restricted access node. In some aspect an access terminal associated with a macro access node may perform a handoff to a different carrier based on location information. In some aspect access to a restricted access node is controlled based on policy and/or based on operation of an access terminal associated with the restricted access node.

    摘要翻译: 在一些方面,受限接入节点被分配给指定的公共信道,而与宏接入节点主动通信的接入终端可以选择性地分配给指定的信道。 在某些方面,当接入终端处于受限接入节点的覆盖区域附近时,与宏接入节点相关联的接入终端可以对不同的载波进行切换。 在一些方面,与宏接入节点相关联的接入终端可以基于位置信息执行到不同载波的切换。 在一些方面,基于策略和/或基于与受限接入节点相关联的接入终端的操作来控制对受限接入节点的接入。

    Radio link protocols for enhancing efficiency of multi-link communication systems
    64.
    发明授权
    Radio link protocols for enhancing efficiency of multi-link communication systems 有权
    用于提高多链路通信系统效率的无线链路协议

    公开(公告)号:US08755407B2

    公开(公告)日:2014-06-17

    申请号:US11355700

    申请日:2006-02-15

    IPC分类号: H04J3/24

    摘要: Embodiments disclosed herein relate to a new set of radio link protocols (RLPs) configured to provide for efficient data transmission in a multi-link communication system. In an embodiment, an upper-layer packet is segmented into link-layer packets to be transmitted over a plurality of communication links, each including a first sequence number in accordance with a predetermined order. A second sequence number is further added to each link-layer packet to be transmitted for the first time. The second sequence number is configured to be in a sequence space associated with a particular communication link, and may be used for detection of missing packets.

    摘要翻译: 本文公开的实施例涉及被配置为在多链路通信系统中提供有效的数据传输的新的无线电链路协议集合(RLP)。 在一个实施例中,上层分组被分割成要在多个通信链路上发送的链路层分组,每个通信链路包括根据预定顺序的第一序列号。 第二序列号进一步添加到要首次发送的每个链路层分组。 第二序列号被配置为与特定通信链路相关联的序列空间中,并且可以用于检测丢失的分组。

    FORWARD ERROR CORRECTION SCHEDULING FOR AN IMPROVED RADIO LINK PROTOCOL
    66.
    发明申请
    FORWARD ERROR CORRECTION SCHEDULING FOR AN IMPROVED RADIO LINK PROTOCOL 审中-公开
    改进的无线电链路协议的前向纠错调度

    公开(公告)号:US20120208580A1

    公开(公告)日:2012-08-16

    申请号:US13025934

    申请日:2011-02-11

    IPC分类号: H04W72/12

    摘要: Forward error correction scheduling techniques for an improved radio link protocol used in a wireless communication system, such as EV-DO. In one embodiment scheduling of the generation of repair symbols encoded to be transmitted along with source data is described. In another embodiment acknowledgment messages from a receiver are used to control the trailing edge of the protection window offered by the repair symbols. In another embodiment, non-acknowledgment messages from a receiver are used to control the generation of extra repair symbols. In another embodiment, a length field is used to avoid transmission of padding bytes over the air. In yet another embodiment, a symbol auxiliary field is appended to source symbols to indicate the padding bytes needed for symbol aligning thus avoiding the transmission of padding bytes over the air.

    摘要翻译: 用于诸如EV-DO的无线通信系统中使用的改进的无线电链路协议的前向纠错调度技术。 在一个实施例中,描述了编码为与源数据一起发送的修复符号的生成的调度。 在另一个实施例中,来自接收机的确认消息用于控制由修复符号提供的保护窗口的后沿。 在另一实施例中,来自接收机的非确认消息用于控制额外修复符号的生成。 在另一个实施例中,使用长度字段来避免在空中传输填充字节。 在另一个实施例中,符号辅助字段被附加到源符号以指示符号对齐所需的填充字节,从而避免空中的填充字节的传输。

    FRAMING FOR AN IMPROVED RADIO LINK PROTOCOL INCLUDING FEC
    67.
    发明申请
    FRAMING FOR AN IMPROVED RADIO LINK PROTOCOL INCLUDING FEC 有权
    改进无线链路协议的框架,其中包括FEC

    公开(公告)号:US20120207068A1

    公开(公告)日:2012-08-16

    申请号:US13025925

    申请日:2011-02-11

    IPC分类号: H04W80/08

    CPC分类号: H04L1/0083 H04W28/06

    摘要: Framing techniques for an improved radio link protocol used in a wireless communication system, such as EV-DO. In one embodiment scheduling of the generation of repair symbols encoded to be transmitted along with source data is described. In another embodiment acknowledgment messages from a receiver are used to control the trailing edge of the protection window offered by the repair symbols. In another embodiment, non-acknowledgment messages from a receiver are used to control the generation of extra repair symbols. In another embodiment, a length field is used to avoid transmission of padding bytes over the air. In yet another embodiment, a symbol auxiliary field is appended to source symbols to indicate the padding bytes needed for symbol aligning thus avoiding the transmission of padding bytes over the air.

    摘要翻译: 用于诸如EV-DO的无线通信系统中使用的改进的无线电链路协议的成帧技术。 在一个实施例中,描述了编码为与源数据一起发送的修复符号的生成的调度。 在另一个实施例中,来自接收机的确认消息用于控制由修复符号提供的保护窗口的后沿。 在另一实施例中,来自接收机的非确认消息用于控制额外修复符号的生成。 在另一个实施例中,使用长度字段来避免在空中传输填充字节。 在另一个实施例中,符号辅助字段被附加到源符号以指示符号对齐所需的填充字节,从而避免空中的填充字节的传输。

    Asymmetric mode of operation in multi-carrier communication systems
    68.
    发明授权
    Asymmetric mode of operation in multi-carrier communication systems 有权
    多载波通信系统中的不对称操作模式

    公开(公告)号:US08160596B2

    公开(公告)日:2012-04-17

    申请号:US11486513

    申请日:2006-07-13

    IPC分类号: H04W72/00

    CPC分类号: H04B7/264 H04L1/16 H04L5/023

    摘要: A method and system for providing asymmetric modes of operation in multi-carrier wireless communication systems. A method may assign a long code mask (LCM) to an information channel associated with a plurality of forward link carriers to transmit data from an access network to an access terminal; and multiplex the information channel on a reverse link carrier. The information channel may include one of data source channel (DSC), data rate control (DRC) and acknowledgment (ACK) information, and the multiplexing may be code division multiplexing (CDM). The AN may instruct the AT on whether to multiplex the DSC information based on feedback from the AT. The method may further offset the ACK information on the reverse link to reduce the reverse link peak to average, CDM the information channel on an I-branch and on a Q-branch, and transmit the code division multiplexed information channel on the reverse link carrier.

    摘要翻译: 一种用于在多载波无线通信系统中提供不对称操作模式的方法和系统。 方法可以将长码掩码(LCM)分配给与多个前向链路载波相关联的信息信道,以将数据从接入网络传输到接入终端; 并在反向链路载波上复用信息信道。 信息信道可以包括数据源信道(DSC),数据速率控制(DRC)和确认(ACK)信息之一,并且复用可以是码分复用(CDM)。 AN可以根据AT的反馈来指示AT是否复用DSC信息。 该方法还可以抵消反向链路上的ACK信息,以减少反向链路峰值平均,CDM在I分支和Q分支上的信道,并在反向链路载波上发送码分多路复用信息信道 。