Edge detector
    1.
    发明授权
    Edge detector 失效
    边缘检测器

    公开(公告)号:US5577078A

    公开(公告)日:1996-11-19

    申请号:US452446

    申请日:1995-05-26

    CPC分类号: H04L7/0338

    摘要: An edge detector has a digital phase locking loop in which one of the signals (e.g., the data signal) is coupled to a delay chain that develops a series of incrementally phase delayed versions of the input. Adjacent phase delayed pairs are selected, one pair at a time, and are compared to the other signal (e.g., the clock signal) to determine if an edge of the clock falls between the edges of the data signal in the selected phase pair, or falls outside the edges of the selected phase pair, on one side or the other thereof. If the clock edge falls outside the selected pair, a control signal selects another pair for comparison and the process is repeated until, for example, the data edges are aligned with the positive going edge of the clock. With a clock frequency equal to twice data frequency, the data can then be sampled on the falling edge of the clock.

    摘要翻译: 边缘检测器具有数字锁相环,其中信号之一(例如,数据信号)耦合到产生输入的一系列增量相位延迟版本的延迟链。 选择相邻相位延迟对,每次一对,并与另一个信号(例如,时钟信号)进行比较,以确定时钟的边沿是否落在所选相位对中的数据信号的边沿之间,或 在所选相位对的边缘之外,在其一侧或另一侧上。 如果时钟沿落在所选择的对之外,则控制信号选择另一对进行比较,并且重复处理,直到例如数据沿与时钟的正向边对齐。 在时钟频率等于两倍数据频率的情况下,可以在时钟的下降沿对数据进行采样。

    Self timed interface
    3.
    发明授权
    Self timed interface 失效
    自定义界面

    公开(公告)号:US5568526A

    公开(公告)日:1996-10-22

    申请号:US452445

    申请日:1995-05-26

    摘要: A self-timed interface (STI) in which a clock signal clocks bit serial data onto a parallel, electrically conductive bus and the clock signal is transmitted on a separate line of the bus. The received data on each line of the bus is individually phase aligned with the clock signal. The received clock signal is used to define boundary edges of a data bit cell individually for each line and the data on each line of the bus is individually phase adjusted so that, for example, a data transition position is in the center of the cell.

    摘要翻译: 自定时接口(STI),其中时钟信号将串行数据时钟位于并行导电总线上,并且时钟信号在总线的单独线路上传输。 总线上每条线上的接收数据与时钟信号单独相位对准。 所接收的时钟信号用于为每条线分别定义数据位单元的边界,并且总线的每条线上的数据被单独相位调整,使得例如数据转换位置位于单元的中心。

    Solar heat collector
    5.
    发明授权
    Solar heat collector 失效
    太阳能集热器

    公开(公告)号:US4015582A

    公开(公告)日:1977-04-05

    申请号:US474941

    申请日:1974-05-31

    IPC分类号: F24J2/50 F24J3/02

    摘要: A highly efficient solar heat collector characterized by a layer of light transmitting insulating (i.e., convection and infra-red radiation suppressing) material disposed between the outer surface of the collector and the heat absorptive layer thereof. Glass fibers are a particularly effective lightweight insulating material which may be used. Through use of flexible polymeric films, lightweight, low-cost solar heat collectors may be fabricated for conversion of existing structures to partial or complete solar heating. Either gaseous or liquid heat transfer fluids may be used. A novel gas-liquid heat exchange system is disclosed.

    摘要翻译: 一种高效率的太阳能热收集器,其特征在于设置在集电器的外表面和其吸热层之间的透光绝缘层(即,对流和红外辐射抑制)材料。 玻璃纤维是可以使用的特别有效的轻质绝缘材料。 通过使用柔性聚合物膜,可以制造轻质,低成本的太阳能集热器,用于将现有结构转换成部分或完整的太阳能加热。 可以使用气体或液体传热流体。 公开了一种新型的气液热交换系统。