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    • 25. 发明申请
    • MEMS SHOCK SENSORS
    • MEMS触发传感器
    • US20080202258A1
    • 2008-08-28
    • US11677762
    • 2007-02-22
    • Nurul AminSong S. XuePatrick J. Ryan
    • Nurul AminSong S. XuePatrick J. Ryan
    • G01L1/16G01L1/00
    • G01P15/0891G01P15/06H01H1/0036H01H9/168H01H35/14H01H35/146H01H2001/0042
    • A shock sensor comprises a substrate and at least one flexure coupled to the substrate and configured to deflect upon an application of force to the shock sensor sufficient to deflect the flexure. Deflection of the at least one flexure produces a detectable change in an electrical property of the shock sensor. Examples of detectable changes in an electrical property of the shock sensor include an open circuit condition, a closed circuit condition, and a variation in voltage of a piezo-electric detector. In some embodiments, the change in the electrical property of the shock sensor may be remotely read by interrogation of a radio frequency identification transponder positioned on the substrate using a remote radio frequency identification transceiver. The disclosure also relates to a shock sensing system and method of shock detection.
    • 冲击传感器包括衬底和耦合到衬底的至少一个挠曲件,并且构造成在对冲击传感器施加足以偏转挠曲件的情况下偏转。 至少一个弯曲部的偏转产生震动传感器的电性能的可检测变化。 冲击传感器的电性能的可检测变化的示例包括开路状态,闭路状态和压电检测器的电压变化。 在一些实施例中,可以通过使用远程射频识别收发器询问位于衬底上的射频识别应答器来远程读取冲击传感器的电气特性的变化。 本公开还涉及一种冲击检测系统和冲击检测方法。
    • 27. 发明授权
    • Methods and apparatus to produce a voltage pulse
    • 产生电压脉冲的方法和装置
    • US07119597B1
    • 2006-10-10
    • US10753054
    • 2004-01-07
    • Robert A. BarrettPatrick J. Ryan
    • Robert A. BarrettPatrick J. Ryan
    • G06F1/04
    • G01R31/14G01R31/001H03K3/57H03K5/12
    • A test circuit employs use of first and second switches to operably charge a capacitor to over 500 volts and, thereafter, discharge energy stored in the capacitor to test an over-voltage protection circuit associated with a pin of a semiconductor device. When switched by a controller, the first switch couples a high voltage source to charge a capacitor. After completing this charge phase, the controller opens the first switch, decoupling the high voltage source from the capacitor. The controller then activates the second switch to couple the capacitor to the pin of the semiconductor device. During this discharge phase, energy in the capacitor discharges through the protection circuit of the semiconductor device. Use of a high-voltage dry reed vacuum relay as the first switch provides better isolation of the high voltage source from the capacitor, avoiding a presence of an unwanted residual voltage component in a simulated ESD test pulse.
    • 测试电路使用第一和第二开关来将电容器可操作地充电到超过500伏特,然后释放存储在电容器中的能量,以测试与半导体器件的引脚相关联的过电压保护电路。 当由控制器切换时,第一开关耦合高电压源以对电容器充电。 完成此充电阶段后,控制器打开第一个开关,将高电压源与电容器去耦。 然后,控制器激活第二开关以将电容器耦合到半导体器件的引脚。 在该放电阶段期间,电容器中的能量通过半导体器件的保护电路放电。 使用高压干簧管真空继电器作为第一个开关可以提供高电压源与电容器的更好隔离,避免在模拟ESD测试脉冲中存在不需要的残余电压分量。
    • 28. 发明授权
    • Method of forming a suspension fabricated from silicon
    • 形成由硅制成的悬架的方法
    • US5711063A
    • 1998-01-27
    • US661816
    • 1996-06-11
    • Richard August BuddeKevin Jon SchultzDaniel E. GlumacPatrick J. RyanCal E. Hardie
    • Richard August BuddeKevin Jon SchultzDaniel E. GlumacPatrick J. RyanCal E. Hardie
    • G11B5/48G11B5/42
    • G11B5/484Y10T29/49021Y10T29/4903
    • An apparatus comprising a magnetic head suspension assembly (10) comprised of a rectangular portion (12), load beam (14) and flexure (16) fabricated from a silicon structure using the etching techniques of the integrated circuit fabrication industry. Said magnetic head suspension assembly (10) having electrical leads (23) to a slider, a pre-amp circuit (25) and a microactuator (27) fabricated directly thereon. A system of providing a loading force passing to slider (50) comprising either a tapered base plate (40) adapted to be held by a horizontally oriented actuator arm or an actuator arm (60) having at least one angled receiving surface (62,64) for attachment to said suspension assembly. The method of forming a magnetic head suspension assembly (10) from an etched silicon structure comprising a cutting step comprising cutting said silicon structure into the silhouette shape of a magnetic head suspension assembly, having a rectangular portion (12), a load beam (14) and a flexure (16), said flexure being cut in a shape such that finger members (18), slider bond tongue (19) and dimple tongue (20) appear thereon, and subsequent to said cutting step, the step of photo-etching regions of said silicon structure to reduce thickness of said silicon structure in certain regions, said photo-etching leaving a remaining non-etched small plateau area which is adapted to act as a point or dimple for an attached slider to gimbal about.
    • 一种包括由使用集成电路制造工业的蚀刻技术由硅结构制成的矩形部分(12),负载梁(14)和挠曲件(16)组成的磁头悬挂组件(10)的装置。 所述磁头悬挂组件(10)具有到滑块的电引线(23),直接在其上制造的前置放大器电路(25)和微型致动器(27)。 提供通过滑块(50)的加载力的系统,包括适于由水平定向的致动器臂保持的锥形基板(40)或具有至少一个成角度的接收表面(62,64)的致动器臂(60) ),用于附接到所述悬架组件。 从蚀刻的硅结构形成磁头悬挂组件(10)的方法,包括切割步骤,包括将所述硅结构切割成具有矩形部分(12),负载梁(14)的磁头悬挂组件的轮廓形状 )和挠曲件(16),所述挠曲被切割成使得指状构件(18),滑块结合舌(19)和凹窝舌(20)出现在其上的形状,并且在所述切割步骤之后, 蚀刻所述硅结构的区域以减小某些区域中所述硅结构的厚度,所述光蚀刻留下剩余的未蚀刻的小平台区域,其适于作为用于万向节的附接滑块的点或凹坑。
    • 29. 发明授权
    • Method and apparatus for accumulating stockpiles of flowable solid
material
    • 堆积可流动固体物料储存的方法和装置
    • US4744459A
    • 1988-05-17
    • US619688
    • 1984-06-13
    • Patrick J. Ryan
    • Patrick J. Ryan
    • B65G3/04B65G63/00B65G65/10B65G65/28B65G69/10B65G21/08B65G69/04
    • B65G69/10
    • An elongated stockpile of flowable solid material with two halves disposed at the opposite sides of a longitudinal vertical symmetry plane is accumulated by transporting the material feeding portion of an elongated conveyor in the interior and lengthwise of the upper slope of a mansard-shaped shed together with a manifold having two ducts which receive flowable material from the feeding portion and flank the conveyor. The ducts discharge material onto two discrete transverse conveyors which are shiftable so that their discharge ends move nearer to or further away from the symmetry plane. The transverse conveyors are movable with the manifold lengthwise of the upper slope and are mounted on a gauntry which travels along rails. The transverse conveyors discharge streams of flowable material which forms elongated piles, first on the floor and thereupon on the layer of flowable material which is formed by the piles covering the floor at both sides of the symmetry plane. The transverse conveyors are shifted upon completion of each forward and each return stroke of the gauntry so that successively deposited piles are staggered with reference to previously deposited piles.
    • 通过将长形输送机的材料供给部分沿着纵向垂直对称平面的相对侧设置的两个半部分延伸到曼彻斯特式梭口的上斜坡的内部和纵向内,并将其与 具有两个管道的歧管,该管道从进料部分接收可流动的材料并在输送机的侧面。 导管将材料排放到两个离散的横向输送机上,这两个输送机是可移动的,使得它们的排出端更靠近或远离对称平面移动。 横向输送机可随着歧管在上坡的纵向移动并且安装在沿轨道行进的高架上。 横向输送机排出形成细长桩的可流动材料的流体,首先在地板上并在其上的可流动材料层上形成,该层由堆叠物覆盖对称平面两侧的地板而形成。 横向输送机在手术的每个前进和每次返回行程完成时移动,使得相继沉积的桩参考先前沉积的桩交错。