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    • 2. 发明授权
    • Class of fixed partial response targets in a PRML sampled data detection channel
    • PRML采样数据检测通道中固定部分响应目标的类别
    • US06249398B1
    • 2001-06-19
    • US09034933
    • 1998-03-04
    • Kevin FisherKelly K. FitzpatrickCory ModlinAra PatapoutianJeffrey L. SonntagNecip Sayiner
    • Kevin FisherKelly K. FitzpatrickCory ModlinAra PatapoutianJeffrey L. SonntagNecip Sayiner
    • G11B5035
    • G11B20/10055G11B5/09G11B20/10009G11B20/10037G11B20/10296
    • A new class of fixed partial response targets are disclosed for use in a PRML magnetic medium read channel. The preferred embodiment exhibits an equalization response characterized by the polynomial 7+4*D−4*D2−5*D3−2*D4, where D represents the unit delay operator. This read channel target provides improved matching to the inherent magnetic channel over the known canonical class of targets (1−D)(1+D){circumflex over ( )}N, and thereby reduces equalization losses. The improved spectral matching reduces amplification of noise in the channel, thereby reducing bit-error-rates. The new class of targets also exhibits a spectral null at DC, reducing problems for offset cancellation circuitry and making the disk drive less sensitive to thermal asperities. It also exhibits a spectral depression rather than a spectral null at the Nyquist frequency, making quasi-catastrophic error sequences virtually impossible. The new class of target simplifies coding and allows RLL code ratios that approach unity, improving effective recording densities, while significantly reducing BER.
    • 公开了一类新的固定部分响应目标,用于PRML磁介质读取通道。 优选实施例表现出由多项式7 + 4 * D-4 * D2-5 * D3-2 * D4表征的均衡响应,其中D表示单位延迟算子。 这个读通道目标在已知的典型目标类别(1-D)(1 + D){circumflex over()} N上提供与固有磁通道的改进的匹配,从而减少均衡损失。 改进的频谱匹配减少了信道中噪声的放大,从而降低了误码率。 新类别的目标还在DC处表现出光谱零点,减少偏移消除电路的问题,并使磁盘驱动器对热凹凸不敏感。 在奈奎斯特频率下,它也表现出光谱抑制而不是光谱零点,使得准灾难性误差序列实际上是不可能的。 新类别的目标简化了编码,并允许RLL代码比率达到统一,提高了有效的记录密度,同时显着降低了BER。
    • 3. 发明授权
    • Footwear lacing system
    • 鞋履系统
    • US08991074B2
    • 2015-03-31
    • US13314944
    • 2011-12-08
    • Richard G. IvesterKevin Fisher
    • Richard G. IvesterKevin Fisher
    • A43C1/00A43C1/06A43C9/00
    • A43C1/00A43C1/006A43C1/06A43C9/00
    • A shoe includes a shoe upper, a first lace and a second lace. The shoe upper includes a heel end, a toe end, and a mid-foot portion between the heel end and the toe end. The first lace is connected to the shoe upper and includes a wide portion and a narrow portion with a tapered portion in-between. The wide portion of the first lace is fastened to the mid-foot portion of the shoe upper at a first position that is nearer to the toe end than the heel end. The second lace is also connected to the shoe upper and also includes a wide portion and a narrow portion with a tapered portion in-between. The wide portion of the second lace is fastened to the mid-foot portion of the shoe upper at a second position that is nearer to the heel end than the first position.
    • 鞋包括鞋面,第一花边和第二花边。 鞋面包括脚跟端部,脚趾端部和脚跟端部与脚趾端部之间的中部脚部。 第一花边连接到鞋面,并且包括宽的部分和在其间具有锥形部分的窄部分。 第一花边的宽部分在比鞋跟端更接近脚趾端的第一位置处固定到鞋面的中部脚部。 第二花边还连接到鞋面上,并且还包括宽的部分和在其间具有锥形部分的窄部分。 第二花边的宽部分在比第一位置更靠近鞋跟端的第二位置处固定到鞋面的中部脚部。
    • 7. 发明申请
    • Motorcycle flag holder mountable on rear axle nut
    • 摩托车挡板可安装在后桥螺母上
    • US20050263667A1
    • 2005-12-01
    • US10856576
    • 2004-05-28
    • Kevin FisherPreston Fisher
    • Kevin FisherPreston Fisher
    • B62J11/00H01Q1/12
    • B62J11/00
    • A motorcycle flag holder mountable on a rear axle nut includes a main body formed from plate stock having spaced-apart first and second major planar surfaces. The main body has a regular-duodecagonally-shaped nut-securing aperture with a central an axis perpendicular to the major planar surfaces. The nut-securing aperture is sized to slide over the axle nut. The main body incorporates a slit that begins at an outer edge of the main body and terminates at an edge of the nut-securing aperture. First and second opposing portions of the main body on either side of the slit can be drawn together with a nut-securing bolt, thereby causing the nut-securing aperture shrinks in size and tighten around the axle nut. The main body also includes a flag staff retaining bore in which a flag staff may be secured with a thumb screw.
    • 可安装在后轴螺母上的摩托车标记支架包括由具有间隔开的第一和第二主平面的板坯形成的主体。 主体具有规则的十二进制形状的螺母固定孔,其中心轴垂直于主平面。 螺母固定孔的尺寸可以在轴螺母上滑动。 主体包括从主体的外边缘开始并终止在螺母固定孔的边缘处的狭缝。 狭缝的任一侧上的主体的第一和第二相对部分可以与螺母固定螺栓一起被拉出,从而使得螺母固定孔的尺寸收缩并围绕轴螺母紧固。 主体还包括一个旗帜工作人员保持孔,旗帜工作人员可以用拇指螺钉固定。
    • 8. 发明授权
    • System and method for partitioning DSL vector cancellation
    • 分离DSL矢量取消的系统和方法
    • US09065534B2
    • 2015-06-23
    • US13403956
    • 2012-02-23
    • Avadhani ShridharKevin Fisher
    • Avadhani ShridharKevin Fisher
    • H04B3/32
    • H04B3/32H04B3/487H04M11/062
    • A DSL system performs crosstalk cancellation using a plurality of vectoring cancellation chips that are partitioned into two or more groups based on DSL victim lines or DSL disturber lines or DSL tones. Embodiments of the invention include both single-criteria and double-criteria partitioning methods. In double-criteria embodiments, the vectoring cancellation VCE chips are first partitioned into two or more victim DSL line groups and then in each group the VCE chips are further partitioned by disturber DSL line processing. Alternately, the vectoring cancellation VCE chips are first partitioned into two or more disturber DSL line groups and then within each group further partitioned by victim DSL line processing. By partitioning the computation as described herein, the invention reduces the bandwidth and the number of links between the chips, without too much co-ordination complexity. This allows crosstalk cancellation across larger vectored groups.
    • DSL系统使用基于DSL受害线或DSL干扰线或DSL音调将其划分为两个或多个组的多个向量消除芯片来执行串扰消除。 本发明的实施例包括单一标准和双准则划分方法。 在双标准实施例中,向量消除VCE码片首先划分成两个或多个受害DSL线路组,然后在每个组中,VCE码片进一步被干扰DSL线路处理分割。 或者,矢量取消VCE芯片首先划分成两个或更多个干扰DSL线路组,然后在每个组内进一步被受害DSL线路处理划分。 通过如本文所述分割计算,本发明降低了芯片之间的带宽和链路数量,而没有太多的协调复杂性。 这允许跨较大矢量组的串扰消除。
    • 9. 发明授权
    • Twisted panel and apparatus for making or mounting same
    • 双面板和制造或安装相同的装置
    • US08262383B2
    • 2012-09-11
    • US11817003
    • 2007-07-10
    • Bryan HarrisKevin FisherJeremy PorterVenugopal R. GhatikarGuillaume Martin
    • Bryan HarrisKevin FisherJeremy PorterVenugopal R. GhatikarGuillaume Martin
    • B28B11/08
    • E04C2/20B29C53/14B29L2007/002E04C2/328Y10T29/53961
    • A twisted resin panel of typically several feet in length can be twisted after being subject to heat, pressure, and a rotation assembly. In one implementation, a manufacturer can clamp opposing ends of a heated resin panel, such as a panel comprising a one or more layers (e.g., tie/EVA layer, image layer(s), etc.) thermoformed within opposing resin sheet layers. The manufacturer can then elevate the resin panel, and then twist at least one end of the resin panel to a specified degree to achieve a desired aesthetic. Upper securing means (e.g., vertical clamps, rig hardware) at the upper end of the resin panel can be configured to move up or down during the twist of the resin panel in order to accommodate length variations thereof. Upon twisting, the resin panel will then cool into the desired position, and thus be used for any number of decorative architectural purposes.
    • 长度通常为几英尺的扭曲树脂面板经受热,压力和旋转组件之后可以扭曲。 在一个实施方案中,制造商可以夹持加热的树脂板的相对端,例如包括在相对的树脂片层内热成型的一层或多层(例如,连接/ EVA层,图像层等)的面板。 然后制造商可以提升树脂面板,然后将树脂板的至少一端扭转到一定程度,以达到所需的美观。 可以在树脂板的上端处的上固定装置(例如,垂直夹具,钻台硬件)构造成在树脂板的扭转期间上下移动,以适应其长度变化。 在扭转时,树脂面板然后将冷却到期望的位置,因此用于任何数量的装饰性建筑目的。