Apparatus and method for processing frame structured data signals
    91.
    发明授权
    Apparatus and method for processing frame structured data signals 有权
    用于处理帧结构化数据信号的装置和方法

    公开(公告)号:US06654368B1

    公开(公告)日:2003-11-25

    申请号:US09537362

    申请日:2000-03-29

    IPC分类号: H04L1250

    摘要: An apparatus for processing a frame structured data signal, the data signal comprising at least one data frame comprising a plurality of data elements arranged in accordance with a frame structure. The apparatus is arranged to generate a tag element for each data element, the configuration of the tag element corresponding to the position of the respective data element within the detected data frame. The apparatus further includes a data processor, arranged to perform one or more respective processing operations on one or more of the data elements, wherein the or each processing operation is determined by the configuration of the respective tag element. The apparatus enjoys the flexibility afforded by a data processor while having relatively low processing power requirements. As a result, it is capable of processing a relatively high volume of data in real time, and is programmable to support more than one frame structure and data rate thereby reducing development, implementation, field maintenance and upgrade costs.

    摘要翻译: 一种用于处理帧结构化数据信号的装置,所述数据信号包括至少一个包括根据帧结构排列的数据元素的数据帧。 该装置被安排成为每个数据元素生成一个标签元素,该标签元素的配置与检测到的数据帧内各个数据元素的位置相对应。 该装置还包括数据处理器,被配置为对一个或多个数据元素执行一个或多个相应的处理操作,其中,每个处理操作由相应标签元件的配置确定。 该设备具有由数据处理器提供的灵活性,同时具有相对低的处理能力要求。 因此,它能够实时处理相对较高的数据量,并且可编程以支持多于一个帧结构和数据速率,从而减少开发,实现,现场维护和升级成本。

    Computer based video system
    92.
    发明授权
    Computer based video system 失效
    基于计算机的视频系统

    公开(公告)号:US5903261A

    公开(公告)日:1999-05-11

    申请号:US666960

    申请日:1996-06-20

    摘要: A computer based system for displaying and compressing video including a video capture card with a video compressor and a bus interface circuit that acts as a busmaster and outputs uncompressed video and compressed video to a computer bus for display of the uncompressed video on the computer monitor and storage of the compressed video on a memory of the computer. The system also includes a software virtual interrupt generator that uses timer events provided by a computer system service and a transfer status indicator to generate interrupts to initiate transfer of a new block of video; an overlay controller implemented in software that transfers video from the video capture card over the computer bus to a graphics subsystem for display in a window on the computer monitor in an overlay mode; a display controller implemented in software that causes display of uncompressed video from the video capture card or software decompressed video; a software controller that compresses audio in software and sends video data to be compressed across the computer bus to the compressor; a controller that is implemented in software and calibrates startup delay of the audio input subsystem and uses the delay to synchronize the audio and video; and a user interactive input mechanism for adjusting the rates of compression within a range of acceptable rates that varies as a function of the output target medium for compressed video.

    摘要翻译: 一种用于显示和压缩视频的基于计算机的系统,包括具有视频压缩器的视频采集卡和用作总线主管的总线接口电路,并将未压缩视频和压缩视频输出到计算机总线,以在计算机监视器上显示未压缩视频, 将压缩的视频存储在计算机的存储器上。 该系统还包括一个软件虚拟中断发生器,它使用由计算机系统服务提供的定时器事件和传输状态指示器来产生中断以启动新的视频块的传送; 以软件实现的覆盖控制器,其通过计算机总线将视频从视频采集卡传送到图形子系统,以覆盖模式在计算机监视器上的窗口中显示; 以软件实现的显示控制器,其显示来自视频采集卡或软件解压缩视频的未压缩视频; 软件控制器,用软件压缩音频,并将压缩在计算机总线上的视频数据发送到压缩器; 软件实现的控制器,并校准音频输入子系统的启动延迟,并使用延迟来同步音频和视频; 以及用户调整压缩率的用户交互输入机制,该压缩率在可压缩视频的输出目标介质的函数变化的可接受速率范围内。

    Performance arcjet thruster
    94.
    发明授权
    Performance arcjet thruster 失效
    电弧喷射推进器

    公开(公告)号:US4926632A

    公开(公告)日:1990-05-22

    申请号:US150591

    申请日:1988-02-01

    IPC分类号: F03H1/00

    CPC分类号: B64G1/406

    摘要: An arcjet thruster has a body defining a constrictor and nozzle constituting an anode and forming an arc chamber. An elongated rod constitutes a cathode spaced from the constrictor by a gap generally coextensive with the arc chamber. An electrical potential is applied to the anode and cathode to generate an electrical arc in the arc chamber from the cathode to the anode. Propellant is supplied to the arc chamber with generation of the arc so as to produce thermal heating and expansion of the propellant through the nozzle. The thruster employs several features which improve its performance. One feature relates to the use of propellant blends with high specific impulse additives. Another feature relates to injection of the high specific impulse additive into the bulk propellant feed at the region of the cathode tip. Still another feature relates to recirculation of a small fraction of propellant from the constrictor region of the arc chamber and injection thereof into the bulk propellant feed at the region of the cathode tip. A final feature relates to regeneration and reaction of the bulk propellant feed within the structure of the anode body and circulation to the region of the cathode tip.

    摘要翻译: 电弧喷射推进器具有限定构成阳极的缩颈和喷嘴的主体并形成电弧室。 细长杆构成通过与电弧室大致共同延伸的间隙与收缩器间隔开的阴极。 向阳极和阴极施加电势,以在电弧室中从阴极到阳极产生电弧。 通过产生电弧将推进剂供应到电弧室,以便通过喷嘴产生推进剂的热加热和膨胀。 推进器采用了几个提高其性能的特征。 一个特征涉及使用具有高比冲量添加剂的推进剂混合物。 另一个特征涉及在阴极尖端的区域将高比冲量添加剂注入本体推进剂​​进料中。 另一个特征涉及一小部分推进剂从电弧室的缩颈区域的再循环,并将其注入到阴极尖端区域的本体推进剂​​进料中。 最后的特征涉及本体推进剂​​进料在阳极体结构内的再生和反应,并循环到阴极尖端的区域。

    Clutch actuation control system with adjustable position encoder assembly
    100.
    发明申请
    Clutch actuation control system with adjustable position encoder assembly 失效
    离合器致动控制系统,带可调节位置编码器总成

    公开(公告)号:US20080105025A1

    公开(公告)日:2008-05-08

    申请号:US12005254

    申请日:2007-12-26

    申请人: William Smith

    发明人: William Smith

    IPC分类号: G01P21/00

    摘要: An adjustable position sensor is provided suitable for use with a clutch actuation control system. The position sensor includes: a rotatable shaft adapted to engage a control gear of the clutch actuation control system; and an encoder having a position indicator adjustably coupled to the shaft and operable to detect the position of the shaft over a range of motion that is less than the range of movement exhibited by the control gear. The position indicator of the encoder is adjustable in relation to the shaft so that the range of motion detected by the encoder can be correlated to an area of interest within the range of motion exhibited by the control gear.

    摘要翻译: 提供适合与离合器致动控制系统一起使用的可调位置传感器。 位置传感器包括:适于接合离合器致动控制系统的控制齿轮的可旋转轴; 以及编码器,其具有可调节地联接到所述轴的位置指示器,并且可操作以在小于所述控制齿轮所呈现的运动范围的运动范围内检测所述轴的位置。 编码器的位置指示器相对于轴可调节,使得由编码器检测到的运动范围可以与控制装置所呈现的运动范围内的感兴趣区域相关联。