Internal combustion engine coil-type ignition control
    31.
    发明授权
    Internal combustion engine coil-type ignition control 失效
    内燃机线圈式点火控制

    公开(公告)号:US4558684A

    公开(公告)日:1985-12-17

    申请号:US632428

    申请日:1984-07-19

    CPC classification number: F02P17/10 F02P3/0456 F02P17/12

    Abstract: An ignition system with an ignition coil employs a power amplifier driven by a microprocessor for starting and interrupting coil current, in accordance with signals from an engine driven transducer. The power amplifier includes a current limiter, but this does not usually come into operation. Instead, the actual current flowing just before the instant of spark in each engine cycle is measured and the on time of the power amplifier is adjusted for the next cycle to cause the final current to approach a desired value less than the current limit value.

    Abstract translation: 具有点火线圈的点火系统采用由微处理器驱动的功率放大器,用于根据来自发动机驱动的换能器的信号启动和中断线圈电流。 功率放大器包括限流器,但这通常不会运行。 相反,测量在每个发动机循环中的火花瞬间之前流动的实际电流,并且在下一个周期调整功率放大器的接通时间,以使最终电流接近小于当前极限值的期望值。

    TOOL FOR REMOVING SNOW AND ICE BUILDUP FROM HORSE HOOVES

    公开(公告)号:US20170258067A1

    公开(公告)日:2017-09-14

    申请号:US15066524

    申请日:2016-03-10

    Applicant: Michael Holmes

    Inventor: Michael Holmes

    CPC classification number: A01L15/00 A01K13/001 A01L11/00

    Abstract: A tool for removing snow and ice from horse hooves is provided. The tool includes a handle to fit into the hand of the user and a head secured to the end of the handle. The head is comprised of a spoon like end for primary debris removal and a hoof pick end for additional debris removal. The spoon like end has a machined edge to facilitate cutting into and breaking up the snow and ice buildup. The rounded shape of the spoonlike end prevents injury to the horse's hoof.

    Efficient decoding of trellis coded modulation waveforms
    40.
    发明申请
    Efficient decoding of trellis coded modulation waveforms 有权
    网格编码调制波形的有效解码

    公开(公告)号:US20050254605A1

    公开(公告)日:2005-11-17

    申请号:US10422083

    申请日:2003-04-24

    Abstract: A method and apparatus for decoding trellis-coded digital data. Digital data samples that have been convolutionally encoded by trellis-coded modulation (TCM) for purposes of forward error correction require a computationally intensive Viterbi decoder for best performance. A technique known as pragmatic trellis-code modulation (PTCM) reduces decoder complexity but at the expense of degraded performance in some situations. This disclosure provides a solution that retains the reduced complexity of PTCM, but uses a full trellis approach that yields significantly better performance in terms of bit error rate (BER).

    Abstract translation: 一种用于对网格编码的数字数据进行解码的方法和装置。 为了进行前向纠错,已经通过网格编码调制(TCM)进行卷积编码的数字数据样本需要计算密集的维特比解码器才能获得最佳性能。 称为实用格码编码调制(PTCM)的技术降低了解码器的复杂性,但在某些情况下牺牲了性能下降。 本公开提供了一种保持PTCM复杂度降低的解决方案,但是使用完全格状方法,在误码率(BER)方面产生显着更好的性能。

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