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    • 34. 发明申请
    • RECHARGE TUNING TECHNIQUES FOR AN IMPLANTABLE DEVICE
    • 用于可移植设备的充电调谐技术
    • US20120262108A1
    • 2012-10-18
    • US13439591
    • 2012-04-04
    • David P. OlsonNicholas A. DelisiJay T. EischPhilip R. LaBrosseJoseph J. Nolan
    • David P. OlsonNicholas A. DelisiJay T. EischPhilip R. LaBrosseJoseph J. Nolan
    • H02J7/00H02J17/00
    • A61N1/3787H02J7/025
    • Techniques are disclosed for tuning a frequency at which an external device transcutaneously transfers energy. The transferred energy may be used to charge a rechargeable power source of an implantable medical device (IMD) and/or to power the IMD directly. One embodiment relates to a charging system that may comprise a circuit to drive a primary coil of an external device at a drive frequency and a control circuit to tune the drive frequency based on a characteristic of a monitored signal that is associated with the primary coil. The characteristic is not present when the primary coil is being driven at a resonant frequency of the system. In a specific example, the characteristic comprises a stub pulse and the control circuit is configured to tune the drive frequency based on at least one of a relative timing and a width of the stub pulse.
    • 公开了用于调谐外部设备经由能量传递的频率的技术。 转移的能量可以用于对可植入医疗装置(IMD)的可再充电电源进行充电和/或直接为IMD供电。 一个实施例涉及一种充电系统,其可以包括用于以驱动频率驱动外部设备的初级线圈的电路和用于基于与初级线圈相关联的监控信号的特性来调节驱动频率的控制电路。 当初级线圈以系统的谐振频率驱动时,该特性不存在。 在具体示例中,特征包括短截线脉冲,并且控制电路被配置为基于短截线脉冲的相对定时和宽度中的至少一个来调节驱动频率。
    • 38. 发明授权
    • Target engagement system for determining proximity to a target
    • 用于确定与目标的接近度的目标参与系统
    • US5067096A
    • 1991-11-19
    • US582574
    • 1990-09-14
    • David P. OlsonJonathan C. Werder
    • David P. OlsonJonathan C. Werder
    • F42C13/06G01S3/807G01S3/808G01S11/14
    • G01S11/14F42C13/06G01S3/807G01S3/808
    • A target engagement system uses target motion analysis to determine a target engagement decision for ground targets, such as vehicles. The input to the engagement system is the target azimuth as a function of time. A detect algorithm issues and records a detect azimuth when confirmation is made that a valid target is being tracked and legitimate azimuth information is being provided. The engagement algorithm then begins and records the time intervals it takes for the target to cross two sectors, each covering 20.degree. and separate by 10.degree.. Thus, first time interval is measured from detect azimuth to 20.degree. after detect azimuth, and the second time interval is measured from 30.degree. after detect azimuth to 50.degree. after detect azimuth. When the first and second time intervals have been recorded, the ratio of the first time interval to the second time interval is calculated. If this ratio is greater than 2.0, then the target is estimated to be within range and is subsequently attacked. Otherwise, the target is greater than the range and no action is taken.
    • 目标参与系统使用目标运动分析来确定地面目标(如车辆)的目标参与决策。 接合系统的输入是作为时间的函数的目标方位角。 当确认正在跟踪有效目标并且正在提供合法的方位信息时,检测算法发出并记录检测方位角。 然后,参与算法开始并记录目标跨越两个扇区所需的时间间隔,每个扇区覆盖20°并分隔10°。 因此,在检测方位角后,从检测方位角到20°测量第一时间间隔,第二个时间间隔从检测方位角后的30°测量到方位角后测量到50°。 当记录了第一和第二时间间隔时,计算第一时间间隔与第二时间间隔的比率。 如果该比例大于2.0,则目标估计在范围内并随后被攻击。 否则,目标大于范围,不采取任何行动。