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    • 24. 发明授权
    • Process for variable inductor using nickel titanium and placement
    • 使用镍钛和放置的可变电感器的工艺
    • US06275131B1
    • 2001-08-14
    • US09454967
    • 1999-12-06
    • Charles B. SwopeHenry F. LiebmanPatrick D. Koskan
    • Charles B. SwopeHenry F. LiebmanPatrick D. Koskan
    • H01F2102
    • H01F21/04
    • A variable inductor is made from two elements separated by an insulating layer. The first element is elastic and serves as a coil shaped support for the inductive element. This elastic element is made with a memory and can be made to change its size by the application of heat. The inductive element is formed over the coil shaped support by layering a thin layer of a highly conductive material such as gold over the insulator layered on the elastic element. As heat is applied to the coil or as an electric current is applied to the elastic element, the size of the coil shaped support is changed which changes the inductive value of the inductive element formed by the conductive layer.
    • 可变电感器由隔绝层隔开的两个元件制成。 第一元件是弹性的并且用作电感元件的线圈形支撑件。 该弹性元件由存储器制成,并且可以通过施加热量而改变其尺寸。 电感元件通过在层叠在弹性元件上的绝缘体上层叠诸如金的高导电材料的薄层而形成在线圈形支撑件上。 当向线圈施加热量时,或者当向弹性元件施加电流时,线圈形支撑件的尺寸被改变,该尺寸改变了由导电层形成的电感元件的电感值。
    • 25. 发明授权
    • Method and device for generating a location signal
    • 用于产生位置信号的方法和装置
    • US08169369B2
    • 2012-05-01
    • US12335156
    • 2008-12-15
    • Armando J. GonzalezCharles R. RuelkeCharles B. Swope
    • Armando J. GonzalezCharles R. RuelkeCharles B. Swope
    • G01S1/08G01S3/02
    • G01S11/02
    • A frequency generation unit (FGU) in a communication device includes a voltage controlled oscillator (VCO), an adjustable filter having a capacitive element for wideband operation, a current source with variable gain, and chirp generation control circuitry (CGC) that is used to generate location signals. The FGU receives, from a reference device, at least one location signal control parameter that defines linear frequency slope characteristics for a location signal. The CGC configures, based on the at least one location signal control parameter, the gain and a polarity of the current source to generate a first current during a first time period for charging the capacitive element to generate a control signal that is coupled to the VCO to generate a first part of the location signal having the defined linear frequency slope characteristics, wherein the first part of the location signal is transmitted using a transceiver of the communication device.
    • 通信装置中的频率产生单元(FGU)包括压控振荡器(VCO),具有用于宽带操作的电容元件的可调整滤波器,具有可变增益的电流源和用于发送控制的线性调频电路(CGC) 生成位置信号。 FGU从参考设备接收至少一个位置信号控制参数,其定义位置信号的线性频率斜率特性。 所述CGC基于所述至少一个位置信号控制参数,配置所述电流源的增益和极性,以在第一时间段期间产生第一电流,以对所述电容元件充电以产生耦合到所述VCO的控制信号 以产生具有所定义的线性频率斜率特性的位置信号的第一部分,其中使用通信设备的收发器发送位置信号的第一部分。