会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 21. 发明授权
    • Signal amplification apparatus with advanced linearization
    • 具有高级线性化的信号放大装置
    • US07940126B2
    • 2011-05-10
    • US12625201
    • 2009-11-24
    • Young-Wan ChoiDo-Gyun KimNam-Pyo Hong
    • Young-Wan ChoiDo-Gyun KimNam-Pyo Hong
    • H03F3/04
    • H03F1/223H03F1/3205H03F2200/108H03F2200/181H03F2200/451
    • Provided is a signal amplification apparatus with advanced linearization, the signal amplification apparatus including: a driving unit having a structure of a cascode amplifier including a first active element and a second active element and outputting an amplification signal in which an input signal is amplified, to an output terminal; a third active element receiving a signal diverged between the first active element and the second active element while gate and drain terminals of the third active element are shorted; a fourth active element of which gate and drain terminals are connected to a source terminal of the third active element; and a fifth active element of which gate terminal is connected to the drain terminal of the fourth active element, outputting a non-linear signal having an opposite phase to the amplification signal to the output terminal so as to cancel a third-order inter-modulation distortion component included in the input signal. An amplification signal in which an input signal is amplified is combined with a non-linear signal having an opposite phase to the amplification signal and a low gain and is output so that a third-order inter-modulation distortion component included in the input signal can be cancelled and a signal with advanced linearity can be output.
    • 提供一种具有高级线性化的信号放大装置,该信号放大装置包括:驱动单元,具有包括第一有源元件和第二有源元件的共源共栅放大器的结构,并输出其中输入信号被放大的放大信号, 输出端子; 第三有源元件接收在第一有源元件和第二有源元件之间发散的信号,同时第三有源元件的栅极和漏极端子短路; 栅极和漏极端子连接到第三有源元件的源极端子的第四有源元件; 以及第五有源元件,其栅极端子连接到第四有源元件的漏极端子,向输出端子输出具有与放大信号相反的相位的非线性信号,以消除三阶互调 失真分量包含在输入信号中。 其中输入信号被放大的放大信号与与放大信号具有相反相位的非线性信号和低增益组合,并被输出,使得输入信号中包括的三阶互调失真分量可以 被取消,并且可以输出具有高线性度的信号。
    • 23. 发明申请
    • POLYOLS AND POLYURETHANES, POLYURETHANEFORMS USING THE SAME
    • 聚氨酯和聚氨酯,使用它的聚氨酯
    • US20090023823A1
    • 2009-01-22
    • US11577050
    • 2005-10-10
    • Do Gyun KimHyosung Kim
    • Do Gyun KimHyosung Kim
    • C08J11/24
    • C08J11/22C08G18/4018C08G18/4288C08G18/4833C08G18/606C08G18/6492C08G2101/0025C08J2367/02C08J2375/04C08J2377/00Y02W30/706
    • The present invention relates to a preparing method of polyols and polyurethane, polyurethaneforms using the same by depolymerizing the polyester, polyamide and polyurethane with the polymeric fatty acid monopoly hydroxyl alcoholide, and additionally react with the polybasic acid, polyol and amine to prepare acid value of 0.5˜1 DKOH/g, hydroxyl value of 10˜500 DKOH/g, and amine value of 1˜50 DKOH/g in polyol, and polyurethane and polyurethaneforms using the same. This is to transform the double bond of the unsaturated fatty acid from the component of the oils and fats in conjugate double bond to induce the Diesl-Alder reaction, and with the improvement of the reactivity to form stability combination in chemical structure to prevent the separate leaching appearance of fatty and fatty oil from the final product, and having the fine compatibility with the polyether-polyol as well as transparent and storage stability. Furthermore, it has 100% of solid with very low viscosity at the room temperature for easy handling while having a great reactivity with the isocyanate that this preparing polyol having excellent chemical and mechanical properties. And, in particular, by recycling the waste edible oil and waste synthetic resin that can be employed as industrially useful material for environment-friendly and economical advantage.
    • 本发明涉及多元醇和聚氨酯的制备方法,通过使聚酯,聚酰胺和聚氨酯与聚合的脂肪酸聚合的羟基醇酯解聚,并与多元酸,多元醇和胺进行反应以制备其酸值, 0.5〜1 DKOH / g,羟值为10〜500 DKOH / g,多元醇中胺值为1〜50 DKOH / g,使用聚氨酯和聚氨酯成型体。 这是将不饱和脂肪酸的双键从共轭双键中的油和脂肪的成分转化为诱导Diesl-Alder反应,并且随着反应性的提高,形成化学结构中的稳定性组合以防止分离 从最终产品中浸出脂肪和脂肪油,并且与聚醚多元醇具有良好的相容性以及透明和储存稳定性。 此外,它具有100%的固体,在室温下具有非常低的粘度,易于处理,同时与异氰酸酯具有很大的反应性,该制备的多元醇具有优异的化学和机械性能。 特别是通过循环使用可以作为工业上有用的材料的废食用油和废合成树脂,具有环保和经济的优点。
    • 24. 发明申请
    • Frequency demodulator for recovering SECAM chrominance signal and method thereof
    • 用于恢复SECAM色度信号的频率解调器及其方法
    • US20080049144A1
    • 2008-02-28
    • US11889647
    • 2007-08-15
    • Hyo-Ju KimSeong-Won LeeDo-Gyun KimYun-Sung WangJi-Hoon Jang
    • Hyo-Ju KimSeong-Won LeeDo-Gyun KimYun-Sung WangJi-Hoon Jang
    • H04N9/66
    • H04N11/186
    • An apparatus for recovering a chrominance signal from a sequential color with memory (SECAM) composite video baseband signal (CVBS), and more particularly, to a frequency demodulator and method of recovering a SECAM chrominance signal which can utilize both a real number portion and an imaginary number portion, and generate a frequency-demodulated chrominance signal using an arctangent approximation, and thereby can simplify a circuit configuration of a frequency demodulator to perform a fixed-point calculation is provided. A frequency demodulator for recovering a chrominance signal, the frequency demodulator comprises a phase differentiator generating a phase difference component between neighboring samples from an input signal and a phase estimator calculating a phase difference between the neighboring samples by using an arctangent approximation, based on the generated phase difference component, wherein the frequency demodulator generates a frequency-demodulated chrominance signal and the phase difference corresponds to the chrominance signal.
    • 一种用于利用存储器(SECAM)复合视频基带信号(CVBS)从顺序色彩恢复色度信号的装置,更具体地说,涉及一种频率解调器和恢复SECAM色度信号的方法,该SECAM色度信号可以利用实数部分和 虚数部分,并且使用反正切近似生成频率解调色度信号,从而可以简化频率解调器的电路配置以进行定点计算。 一种用于恢复色度信号的频率解调器,所述频率解调器包括相位微分器,所述相位微分器基于输入信号产生相邻采样之间的相位差分量;以及相位估计器,基于所生成的相位估计器,所述相位估计器通过使用反正切近似来计算相邻采样之间的相位差 相位差分量,其中频率解调器产生频率解调色度信号,相位差对应于色度信号。
    • 25. 发明申请
    • Toner for electrostatic development and its fabrication method by treatment of suspension with reverse-neutralization
    • 用于静电开发的调色剂及其通过用反中和处理悬浮液的方法
    • US20050142474A1
    • 2005-06-30
    • US10498919
    • 2002-12-14
    • Do-Gyun Kim
    • Do-Gyun Kim
    • G03G9/08G03G9/087G03G9/097G03G9/00
    • G03G9/09725G03G9/0804G03G9/081G03G9/08711G03G9/08782G03G9/08791G03G9/08793
    • The present invention relates to a toner for electrostatic development produced by a suspension process accompanied with reverse-neutralization and the making method thereof. The making method of a toner for use in electrostatic development according to the present invention comprises a phase for producing a linear low molecular weight polymer having carboxyl groups (—COOH) at the end of a polymer chain; a phase for producing a cross-linked high molecular weight water-dispersible latex; a phase for producing colored resin dispersions by adding a colorant, charge control agents, release agents and the cross-linked high molecular weight water-dispersible latex; a phase for producing toner particles through a suspension process accompanied with reverse-neutralization; a phase for producing a colored toner particle composition through filtrating, washing and vacuum drying; and a phase for adding hydrophobic silica to the colored toner particle composition, and blending them using a powder mixer.
    • 本发明涉及一种伴随逆中和的悬浮法生产的静电显影用调色剂及其制造方法。 根据本发明的用于静电显影的调色剂的制备方法包括在聚合物链末端生产具有羧基(-COOH)的线性低分子量聚合物的相; 用于生产交联的高分子量水分散性胶乳的相; 通过添加着色剂,电荷控制剂,脱模剂和交联的高分子量水分散性胶乳来生产有色树脂分散体的相; 通过伴随反向中和的悬浮方法生产调色剂颗粒的相; 通过过滤,洗涤和真空干燥生产着色调色剂颗粒组合物的相; 和用于向着色调色剂颗粒组合物中加入疏水性二氧化硅的相,并使用粉末混合器进行混合。