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    • 54. 发明申请
    • Dynamically adapting a magnetic tape read channel equalizer
    • 动态调整磁带读通道均衡器
    • US20060119969A1
    • 2006-06-08
    • US11003283
    • 2004-12-03
    • Robert HutchinsGlen JaquetteEvangelos EleftheriouSedat Oelcer
    • Robert HutchinsGlen JaquetteEvangelos EleftheriouSedat Oelcer
    • G11B5/035G11B20/10
    • G11B20/10G11B5/02
    • A read channel equalizer of a magnetic tape drive which equalizes digitally sampled magnetic signals detected by a read head is dynamically adapted. A detector of equalizer dynamic adaptation logic compares equalizer output signals to desired values that are based on the decoding scheme (such as +2, 0 and −2 for PR4) to sense equalizer output signals that are offset from at least one desired value, and signals the fact of each offset and its polarity as amplitude independent error signals. The signaled sensed amplitude independent error signals are fed back to adjustable taps of the equalizer. The simplified error signals thus avoid complex calculations of waveform errors, such as least mean square calculations. The error signals may be weighted and may be adjusted to align synchronously provided error signals with asynchronous taps of the equalizer.
    • 磁头驱动器的读取通道均衡器,其均衡由读取头检测到的数字采样磁信号。 均衡器动态适配逻辑的检测器将均衡器输出信号与基于解码方案(例如PR4的+2,0和-2)的期望值进行比较,以感测与至少一个期望值偏移的均衡器输出信号,以及 将每个偏移及其极性的事实表示为与振幅无关的误差信号。 信号感知的与振幅无关的误差信号反馈到均衡器的可调节抽头。 因此,简化的误差信号避免了波形误差的复杂计算,例如最小均方根计算。 误差信号可以被加权并且可以被调整以使同步提供的误差信号与均衡器的异步抽头对齐。
    • 57. 发明授权
    • Apparatus for simulating traumatic brain injury and method for inducing spinal cord injury
    • 用于模拟创伤性脑损伤的装置和诱导脊髓损伤的方法
    • US06588431B1
    • 2003-07-08
    • US09913017
    • 2001-09-28
    • Jay M. MeythalerJean PeduzziEvangelos Eleftheriou
    • Jay M. MeythalerJean PeduzziEvangelos Eleftheriou
    • A61B1900
    • G09B23/286
    • An apparatus for simulating human traumatic brain injury in an animal, said apparatus comprising a support having an aperture having end walls and side walls disposed therein; a sliding element slidingly engaged with said side walls of said aperture, said sliding element having a retainer disposed thereon for receiving an animal holder therein; and a crank arm operatively connected to both said sliding element and an actuator mechanism. There is also disclosed a method of simulating human traumatic brain injury in an animal which includes the steps of providing an animal and repeatedly laterally displacing the animal in a reciprocal manner in order to cause acceleration and deceleration of the animal laterally to cause the animal's brain to be correspondingly accelerated and decelerated thereby causing traumatic brain injury. A method of simulating human spinal cord injury in an animal, said method comprising the steps of providing a vertebrate animal having an invertebral space and a spinal cord; causing an opening in the animal at the invertebral space to the interior surface of the spinal cord; inserting a deflated balloon embolectomy catheter into the opening, and rapidly inflating the balloon catheter to cause the balloon catheter to expand and contact the spinal cord whereby the contact causes injury to the spinal cord.
    • 一种用于在动物中模拟人类创伤性脑损伤的装置,所述装置包括具有其中设置有端壁和侧壁的孔的支撑件; 与所述孔的所述侧壁滑动地接合的滑动元件,所述滑动元件具有设置在其上的用于在其中容纳动物保持器的保持器; 以及可操作地连接到所述滑动元件和致动器机构的曲柄臂。 还公开了一种在动物中模拟人类创伤性脑损伤的方法,其包括提供动物并以相互的方式重复地横向移动动物的步骤,以使动物横向加速和减速以使动物的大脑 相应地加速和减速,从而引起创伤性脑损伤。 一种在动物中模拟人脊髓损伤的方法,所述方法包括以下步骤:提供具有椎间隙和脊髓的脊椎动物; 导致在脊椎空间的动物的开口到脊髓的前表面; 将放气的气囊插入导管插入开口中,并迅速充气气囊导管,使气囊导管膨胀并接触脊髓,由此接触会对脊髓造成伤害。