Frequency-tunable terahertz light source device
    12.
    发明授权
    Frequency-tunable terahertz light source device 失效
    频率可调太赫兹光源装置

    公开(公告)号:US07782909B2

    公开(公告)日:2010-08-24

    申请号:US12192527

    申请日:2008-08-15

    IPC分类号: H01S3/30

    摘要: Provided is a frequency-tunable terahertz light source device. The frequency-tunable terahertz light source device satisfies a Littrow diffraction condition at a wavelength and simultaneously satisfies a Littman-Metcalf diffraction condition at another wavelength using a double diffraction grating having two grating periods. Thus, oscillations simultaneously occur at the two different wavelengths, such that a terahertz wave can be stably generated by beating of the two oscillation wavelengths. In addition, the frequency-tunable terahertz light source device can readily change a frequency up to several terahertz and can be fabricated in a small size.

    摘要翻译: 提供了一种频率可调的太赫兹光源装置。 频率可调谐的太赫兹光源装置在波长处满足Littrow衍射条件,并且使用具有两个光栅周期的双衍射光栅同时满足另一个波长的Littman-Metcalf衍射条件。 因此,振荡同时发生在两个不同的波长处,使得可以通过拍摄两个振荡波长来稳定地产生太赫兹波。 此外,频率可调谐的太赫兹光源装置可以容易地将频率改变到几个太赫兹,并且可以以小尺寸制造。

    ANTENNA CONFIGURED FOR LOW FREQUENCY APPLICATIONS
    14.
    发明申请
    ANTENNA CONFIGURED FOR LOW FREQUENCY APPLICATIONS 有权
    天线配置为低频应用

    公开(公告)号:US20070229376A1

    公开(公告)日:2007-10-04

    申请号:US11675557

    申请日:2007-02-15

    IPC分类号: H01Q1/12

    摘要: An antenna configured for low frequency applications on a mobile device includes an antenna element coupled to a conductive structure which, in turn, is coupled to the user of the mobile device such that the user of the mobile device effectively becomes part of the antenna. The conductive structure can include, for example, the device housing being made from a conductive material, a conductive structure embedded inside the device housing, or conductive pads exposed in the device housing. The antenna element is electrically connected to the conductive structure and the user can be coupled to the conductive structure either through direct contact or through capacitive coupling. In addition, the antenna can include an active element configured to boost free space operation efficiency. The active element can include, for example, a low noise amplifier integrated onto a low noise amplifier board. The active element can be at least partially surrounded by a hollow support structure around which an antenna coil is wrapped, where the antenna coil is coupled to the active element. Furthermore, one or more antenna coils can be utilized either separately or in conjunction with the antenna for low frequency applications, where the one or more antenna coils can have integrated therein inductive components and/or active/switching elements that allow the one or more antenna coils to be tuned to a desired frequency.

    摘要翻译: 配置用于移动设备上的低频应用的天线包括耦合到导电结构的天线元件,该天线元件又连接到移动设备的用户,使得移动设备的用户有效地成为天线的一部分。 导电结构可以包括例如由导电材料制成的器件外壳,嵌入在器件外壳内部的导电结构,或暴露在器件外壳中的导电焊盘。 天线元件电连接到导电结构,用户可以通过直接接触或通过电容耦合而耦合到导电结构。 此外,天线可以包括被配置为提高自由空间操作效率的有源元件。 有源元件可以包括例如集成在低噪声放大器板上的低噪声放大器。 有源元件可以至少部分地被中空支撑结构所围绕,天线线圈围绕着该天线线圈被缠绕,其中天线线圈耦合到有源元件。 此外,一个或多个天线线圈可以单独地或与低频应用的天线一起使用,其中一个或多个天线线圈可以集成在其中的电感元件和/或允许一个或多个天线的有源/开关元件 线圈调谐到所需的频率。

    Process for removing polymer from reaction mixture
    16.
    发明授权
    Process for removing polymer from reaction mixture 失效
    从反应混合物中除去聚合物的方法

    公开(公告)号:US4042542A

    公开(公告)日:1977-08-16

    申请号:US613143

    申请日:1975-09-15

    申请人: Ki Soo Kim

    发明人: Ki Soo Kim

    摘要: The recovery of a polymer product formed by condensing an organo-phosphonic acid dichloride or dibromide, a dihydroxy aromatic compound and, optionally, a crosslinking momomer in an organic solvent reaction medium, as a granular solid is accomplished by combining said organic solvent containing the polymer product and an aqueous solution which contains an effective amount of suspending agent to later induce precipitation of said polymer product and by thereafter agitating the solution while removing the solvent therefrom to affect precipitation of said granular polymer product.

    摘要翻译: 通过将有机膦酸二氯或二溴化物缩合而形成的聚合物产物的回收,作为颗粒状固体的有机溶剂反应介质中的二羟基芳族化合物和任选的交联单体通过将含有聚合物的有机溶剂 产品和水溶液,其含有有效量的悬浮剂以便后来诱导所述聚合物产物的沉淀,然后在从其中除去溶剂的同时搅拌溶液以影响所述粒状聚合物产物的沉淀。

    SWITCHING MODE POWER SUPPLY HAVING MULTIPLE OUTPUT
    17.
    发明申请
    SWITCHING MODE POWER SUPPLY HAVING MULTIPLE OUTPUT 审中-公开
    切换模式电源具有多路输出

    公开(公告)号:US20120163034A1

    公开(公告)日:2012-06-28

    申请号:US13333167

    申请日:2011-12-21

    IPC分类号: H02M3/24

    摘要: There is provided a switching mode power supply having multiple outputs, including: a DC/DC converter converting a DC voltage level according to a change in a load and including a primary coil and a secondary coil; a boost unit boosting an output voltage of the DC/DC converter in a first mode and outputting the boosted output voltage to an output terminal; a bypass unit bypassing the output voltage of the DC/DC converter in a second mode, to output the bypassed voltage to the output terminal; and a boosting controller controlling the boost unit according to a voltage detected at a center tab of the secondary coil of the DC/DC converter.

    摘要翻译: 提供具有多个输出的开关模式电源,包括:DC / DC转换器,其根据负载的变化而转换DC电压电平,并且包括初级线圈和次级线圈; 升压单元,以第一模式提升DC / DC转换器的输出电压,并将升压的输出电压输出到输出端子; 在第二模式中绕过DC / DC转换器的输出电压的旁路单元,将旁路电压输出到输出端子; 以及升压控制器,其根据在DC / DC转换器的次级线圈的中心突片处检测到的电压来控制升压单元。

    Method and apparatus for pitch modulation and gender identification of a voice signal
    19.
    发明授权
    Method and apparatus for pitch modulation and gender identification of a voice signal 失效
    用于音调调制和语音信号的性别识别的方法和装置

    公开(公告)号:US07587312B2

    公开(公告)日:2009-09-08

    申请号:US10746522

    申请日:2003-12-24

    申请人: Ki Soo Kim

    发明人: Ki Soo Kim

    IPC分类号: G10L11/04

    摘要: A method and apparatus for modulating pitch and identifying gender of a voice signal is provided. The voice modulation apparatus includes an LPC analyzer for obtaining vocal track filter coefficients reflecting characteristics of an input voice signal, a pitch detector for detecting the pitch and the gender of the voice signal, a pitch modulator for modulating the voice signal by applying a predetermined value to a detected value from the pitch detector, and a coder for coding the input signal from to LPC analyzer and to pitch modulator, and for outputting a coded signal.

    摘要翻译: 提供了用于调制音调并识别语音信号的性别的方法和装置。 语音调制装置包括LPC分析器,用于获得反映输入语音信号的特性的声道滤波器系数,用于检测语音信号的音高和性别的音高检测器,用于通过施加预定值来调制语音信号的音调调制器 到来自音调检测器的检测值,以及编码器,用于对来自LPC分析器的输入信号和音调调制器进行编码,并输出编码信号。