System for determining the spatial orientation of a movable apparatus
    51.
    发明授权
    System for determining the spatial orientation of a movable apparatus 有权
    用于确定可移动装置的空间取向的系统

    公开(公告)号:US09052159B2

    公开(公告)日:2015-06-09

    申请号:US13663310

    申请日:2012-10-29

    摘要: A system for determining the spatial orientation of a movable apparatus includes at least one optical angle-of-arrival (OAOA) sensor array, each of which comprises multiple OAOA sensors arranged to provide a 360° field-of-view (FOV). At least one sensor array is mounted on and has a known spatial relationship to a movable apparatus, the spatial orientation of which is to be determined. Point sources are located at one or more stationary positions within the FOV of at least one of the mounted arrays. An initial-north-finding/initial-vertical-finding (INF/INV) system determines the spatial orientation of at least one of the point sources. Processing circuitry coupled to the INF/INV system and the sensor arrays derives the spatial orientation of the mounted arrays—and thereby the spatial orientation of the apparatus—based on the angular positions of the stationary point sources detected by the mounted arrays.

    摘要翻译: 用于确定可移动装置的空间取向的系统包括至少一个光学到达角(OAOA)传感器阵列,每个传感器阵列包括布置成提供360°视场(FOV)的多个OAOA传感器。 至少一个传感器阵列安装在可移动装置上,并且具有与待确定其空间取向的可移动装置的已知空间关系。 点源位于至少一个安装的阵列的FOV内的一个或多个固定位置。 初始北寻找/初始垂直寻找(INF / INV)系统确定至少一个点源的空间取向。 耦合到INF / INV系统和传感器阵列的处理电路导出安装的阵列的空间取向,从而基于由安装的阵列检测到的固定点源的角位置导致装置的空间取向。

    SYSTEM AND METHOD FOR MEASURING A DISTANCE
    52.
    发明申请
    SYSTEM AND METHOD FOR MEASURING A DISTANCE 审中-公开
    用于测量距离的系统和方法

    公开(公告)号:US20120170047A1

    公开(公告)日:2012-07-05

    申请号:US12983527

    申请日:2011-01-03

    IPC分类号: G01B9/02

    摘要: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for measuring a distance. In one aspect, the method includes actuating or releasing an interferometric modulator having a first surface and a second surface and measuring a distance between the first and second surfaces at a plurality of times during the actuation or release. In another aspect, the method includes illuminating, with a first laser beam having a first wavelength and with a second laser beam having a second wavelength different from the first wavelength, an interferometric modulator having a distance between a first surface which is at least partially reflective and a second surface which is at least partially absorptive, measuring a first intensity of the first laser beam modulated by the interferometric modulator and a second intensity of the second laser beam modulated by the interferometric modulator, and determining the distance based on the measured intensities.

    摘要翻译: 本公开提供了用于测量距离的系统,方法和装置,包括在计算机存储介质上编码的计算机程序。 一方面,该方法包括致动或释放具有第一表面和第二表面的干涉式调制器,并且在致动或释放期间多次测量第一和第二表面之间的距离。 在另一方面,该方法包括用具有第一波长的第一激光束和具有不同于第一波长的第二波长的第二激光束照射干涉式调制器,该调制器具有至少部分反射的第一表面之间的距离 以及第二表面,其至少部分地吸收,测量由所述干涉式调制器调制的所述第一激光束的第一强度和由所述干涉式调制器调制的所述第二激光束的第二强度,以及基于所测量的强度来确定所述距离。

    Method, system and device for controlling a transmission window size
    54.
    发明授权
    Method, system and device for controlling a transmission window size 有权
    用于控制传输窗口大小的方法,系统和设备

    公开(公告)号:US07706269B2

    公开(公告)日:2010-04-27

    申请号:US10503563

    申请日:2002-03-22

    IPC分类号: H04J1/16

    摘要: A method and system for controlling a transmission window size, wherein a transmission condition of the transmission path between a transmitting element and a receiving element is checked when at least one of the transmitting and receiving elements moves from a first access network to a second access network. Then, the transmission window size is changed in response to the result of said checking step. Thereby, the transmission window can be decreased actively to thereby accelerate the control procedure and improve resource utilization.

    摘要翻译: 一种用于控制传输窗口尺寸的方法和系统,其中当发射和接收元件中的至少一个从第一接入网络移动到第二接入网络时,检查发射元件和接收元件之间的传输路径的传输条件 。 然后,响应于所述检查步骤的结果,改变传输窗口大小。 由此,可以主动地减小发送窗口,从而加快控制过程,提高资源利用率。

    METHOD, APPARATUS, SYSTEM AND COMPUTER PROGRAM PRODUCT FOR SELECTIVELY AND INTERACTIVELY DOWNLOADING A MEDIA ITEM
    56.
    发明申请
    METHOD, APPARATUS, SYSTEM AND COMPUTER PROGRAM PRODUCT FOR SELECTIVELY AND INTERACTIVELY DOWNLOADING A MEDIA ITEM 审中-公开
    方法,设备,系统和计算机程序产品,用于选择和互动下载媒体项目

    公开(公告)号:US20090006955A1

    公开(公告)日:2009-01-01

    申请号:US11769362

    申请日:2007-06-27

    申请人: Kongqiao Wang Jian Ma

    发明人: Kongqiao Wang Jian Ma

    IPC分类号: G06F15/16 G06F3/01

    摘要: An apparatus, method, system and computer program product are provided for selectively and interactively downloading a media item, such as a video. Prior to downloading the media item, the user may first download an approximation of each group of pictures (GOPs) of the video. The user can then browse through the approximations to determine which of the GOPs to download. Each approximation may include at least part of the intra frame (“I-frame”) of the corresponding GOP. In particular, the approximation may include, only the low-frequency, component of the I-frame or the I-frame itself. Once downloaded, the approximations may be displayed, and the user may select one or more of the approximations to selectively download the corresponding GOPs. The selected GOPs may thereafter be downloaded in accordance with a selected level of specificity or detail.

    摘要翻译: 提供了一种装置,方法,系统和计算机程序产品,用于选择性地和交互地下载诸如视频的媒体项目。 在下载媒体项目之前,用户可以首先下载视频的每组图像(GOP)的近似值。 然后,用户可以浏览近似值,以确定要下载哪些GOP。 每个近似可以包括相应GOP的帧内(I帧)的至少一部分。 特别地,近似值可以仅包括I帧或I帧本身的低频分量。 一旦下载,可以显示近似值,并且用户可以选择一个或多个近似值来选择性地下载对应的GOP。 所选择的GOP之后可以根据选定的特异性或细节水平进行下载。

    TCP-friendly markers and methods using token buckets
    57.
    发明授权
    TCP-friendly markers and methods using token buckets 失效
    使用令牌桶的TCP友好标记和方法

    公开(公告)号:US07467223B2

    公开(公告)日:2008-12-16

    申请号:US10676576

    申请日:2003-09-30

    IPC分类号: G06F15/173 G06F11/00

    摘要: Systems and methods are disclosed for marking a packet with a precedence value in a TCP-friendly way. One system and method marks packets with a precedence value based on a probability function. Another system and method marks packets with one of three precedence values based on network traffic but enables interleaving of differently marked packets when a certain number of packets have been successively marked with a low or medium precedence value.

    摘要翻译: 公开了用于以TCP友好的方式标记具有优先级值的分组的系统和方法。 一个系统和方法基于概率函数标记具有优先级值的分组。 另一种系统和方法根据网络流量标记具有三个优先级值之一的数据包,但是当一定数量的数据包已被连续标记为低或中等优先级值时,可以对不同标记数据包进行交织。

    HIGH PRECISION COMPACT ROTATION ANGLE ABSOLUTE ENCODER
    58.
    发明申请
    HIGH PRECISION COMPACT ROTATION ANGLE ABSOLUTE ENCODER 有权
    高精度旋转角度绝对编码器

    公开(公告)号:US20080277570A1

    公开(公告)日:2008-11-13

    申请号:US11745693

    申请日:2007-05-08

    IPC分类号: G01D5/34

    CPC分类号: G01D5/34776

    摘要: An angle absolute encoder comprises a code rod encoded with code marks configured in segments, such that each successive segment has an increasing number of code marks, arranged at an angle to the rotation axis depending on the number of code marks in each segment. The angle of the code mark is determined by the number of code marks in the respective segment, the width of the segment parallel to the rotation axis of the code rod and the radius of the code rod. The angular resolution increases according to the number of code marks in each segment. Light is reflected from or transmitted through the code marks and detected by a light detector to determine absolute angle position.

    摘要翻译: 角度绝对编码器包括编码有以段形式配置的代码标记的代码棒,使得每个连续的段具有越来越多的代码标记,根据每个段中的代码标记的数量与旋转轴成一角度排列。 代码标记的角度由相应段中的代码标记的数量,平行于代码棒的旋转轴的段的宽度和代码棒的半径确定。 角度分辨率根据每个段中的代码标记数量而增加。 光从代码标记反射或透过,并由光检测器检测,以确定绝对角位置。

    Congestion control method for a packet-switched network
    59.
    发明授权
    Congestion control method for a packet-switched network 失效
    分组交换网络的拥塞控制方法

    公开(公告)号:US07369498B1

    公开(公告)日:2008-05-06

    申请号:US10168009

    申请日:1999-12-13

    申请人: Jian Ma Fei Peng Jing Wu

    发明人: Jian Ma Fei Peng Jing Wu

    IPC分类号: G01R31/08 H04L12/66 G06F15/16

    摘要: The present invention relates to a method and network for controlling congestion in a packet-switched network, comprising traffic sources, traffic destinations and network nodes, wherein a packet queue length in a network node is determined and a congestion notification is transmitted back towards the source address of an incoming data packet received at the network node, if the detected packet queue length exceeds a predetermined threshold. Then, congestion control is performed at a predetermined intermediate network node in response to the receipt of the congestion notification. Thereby, burts of source traffic can be constrained and unnecessary packet losses can be avoided already at an intermediate access node and within the network. The congestion notification message generated due to an incipient congestion is immediately routed back according to its source address. As a result, control delay time is shortened, such that buffer size requirements and number of congestion notification messages are reduced.

    摘要翻译: 本发明涉及一种用于控制分组交换网络中的拥塞的方法和网络,包括流量源,流量目的地和网络节点,其中,确定网络节点中的分组队列长度,并向源发送拥塞通知 如果检测到的分组队列长度超过预定阈值,则在网络节点处接收的输入数据分组的地址。 然后,响应于接收到拥塞通知,在预定的中间网络节点执行拥塞控制。 因此,可以限制源业务的激活,并且可以在中间接入节点和网络内避免不必要的分组丢失。 由于初始拥塞而产生的拥塞通知消息根据其源地址立即被路由回来。 结果,控制延迟时间缩短,使得缓冲器大小要求和拥堵通知消息数量减少。

    Method, system and device for controlling a transmission window size
    60.
    发明申请
    Method, system and device for controlling a transmission window size 有权
    用于控制传输窗口大小的方法,系统和设备

    公开(公告)号:US20050088972A1

    公开(公告)日:2005-04-28

    申请号:US10503563

    申请日:2002-03-23

    摘要: A method and system for controlling a transmission window size, wherein a transmission condition of the transmission path between a transmitting element and a receiving element is checked when at least one of the transmitting and receiving elements moves from a first access network to a second access network. Then, the transmission window size is changed in response to the result of said checking step. Thereby, the transmission window can be decreased actively to thereby accelerate the control procedure and improve resource utilization.

    摘要翻译: 一种用于控制传输窗口尺寸的方法和系统,其中当发射和接收元件中的至少一个从第一接入网络移动到第二接入网络时,检查发射元件和接收元件之间的传输路径的传输条件 。 然后,响应于所述检查步骤的结果,改变传输窗口大小。 由此,可以主动地减小发送窗口,从而加快控制过程,提高资源利用率。