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    • 41. 发明申请
    • Method and system for amplifying a signal
    • 用于放大信号的方法和系统
    • US20060152288A1
    • 2006-07-13
    • US11031185
    • 2005-01-07
    • Solti PengChien-Chung ChenAbdellatif BellaouarHeng-Chih Lin
    • Solti PengChien-Chung ChenAbdellatif BellaouarHeng-Chih Lin
    • H03F1/22
    • H03F1/30H03F3/189H03F2200/18H03F2200/456H03F2200/72
    • According to one embodiment of the invention, an amplifier includes a gate bias circuit operable to generate a gate bias voltage and a common gate amplifier that includes a transistor having a gate biased by an output of the gate bias circuit and also having a source connected to an inductor for providing a path to ground for direct current flowing through the transistor. According to another embodiment of the invention, a method for amplifying a signal by an amplifier includes generating a gate bias voltage indicative of a difference between a reference voltage and an output voltage of the amplifier, biasing the gate of the common-gate amplifier with the gate bias voltage, and blocking, by a passive device, alternating current signals from flowing from the source of the transistor to ground.
    • 根据本发明的一个实施例,放大器包括栅极偏置电路,其可操作以产生栅极偏置电压和公共栅极放大器,该公共栅极放大器包括具有由栅极偏置电路的输出偏置的栅极的晶体管,并且源极连接到 电感器,用于为直流电流流过晶体管提供路径。 根据本发明的另一个实施例,一种用于放大放大器的信号的方法包括:生成指示放大器的参考电压和输出电压之间的差异的栅极偏置电压,使公共栅极放大器的栅极偏置 栅极偏置电压和被无源器件阻塞从晶体管的源极流到地的交流信号。
    • 42. 发明申请
    • Current switching arrangement for D.A.C. reconstruction filtering
    • 电流开关装置 重建过滤
    • US20050225464A1
    • 2005-10-13
    • US10821576
    • 2004-04-09
    • Heng-Chih LinChien-Chung Chen
    • Heng-Chih LinChien-Chung Chen
    • H03M1/66H03M1/74
    • H03M1/0614H03M1/662H03M1/742
    • An arrangement provides a reduced harmonic content output signal that represents a value of a digital input signal. The arrangement includes plural storage devices 301 . . . configured to sample and store the digital input signal at different respective phases of a clock signal. The arrangement also has plural current steering digital-to-analog converters (DACs) 311 . . . configured to receive respective stored digital signals from respective ones of the plural storage devices, and to provide respective currents that represent the received stored digital signals. The arrangement also includes a combining arrangement configured to combine the currents from respective ones of the plural current steering DACs, so as to provide the reduced harmonic content output signal that represents the value of the digital input signal.
    • 一种布置提供了表示数字输入信号的值的减少谐波含量输出信号。 该装置包括多个存储装置301。 。 。 配置成在时钟信号的不同相位采样和存储数字输入信号。 该装置还具有多个电流转向数模转换器(DAC)311。 。 。 被配置为从多个存储设备中的相应存储设备接收相应的存储的数字信号,并且提供表示所接收的存储的数字信号的相应电流。 该装置还包括组合装置,其被配置为组合来自多个电流导向DAC中的相应电流的电流,以便提供表示数字输入信号的值的减少的谐波含量输出信号。
    • 44. 发明授权
    • Thermal analysis for detection and identification of explosives and other controlled substances
    • 用于检测和识别爆炸物和其他受控物质的热分析
    • US06406918B1
    • 2002-06-18
    • US09491026
    • 2000-01-25
    • William W. BannisterChien-Chung ChenWilliam A. CurbyEric B. ChenPaul L. DamourAntonio Morales
    • William W. BannisterChien-Chung ChenWilliam A. CurbyEric B. ChenPaul L. DamourAntonio Morales
    • G01N2172
    • G01N25/4866G01N33/0057Y10T436/11
    • The invention features methods and systems for detecting the presence of an energetic material in a sample in which the presence of the energetic material is unknown. The method includes the steps of: heating the sample; measuring heat flow between the sample and its surrounding environment, e.g., by using differential scanning calorimetry (DSC); and analyzing the measured heat flow between the sample and its surrounding environment. An exothermal peak in the measured heat flow indicates the presence of the energetic material in the sample. The system includes a thermal measuring apparatus for performing the heating and measuring steps, and an analyzer for detecting the presence of the energetic material based on the measured heat flow. The invention also features methods and systems for identifying contraband materials (e.g., explosives and drugs) by measuring the thermogram (e.g., by DSC) of a sample to be identified and comparing it to reference thermograms for known contraband materials.
    • 本发明的特征在于用于检测在能量材料的存在是未知的样品中能量材料的存在的方法和系统。 该方法包括以下步骤:加热样品; 测量样品和其周围环境之间的热流,例如通过使用差示扫描量热法(DSC); 并分析样品与其周围环境之间的测量热流。 测量热流中的放热峰表明样品中存在高能材料。 该系统包括用于执行加热和测量步骤的热测量装置,以及用于基于测量的热流检测能量材料的存在的分析器。 本发明还具有用于通过测量要鉴定的样品的温谱图(例如通过DSC)来鉴定违禁物质(例如爆炸物和药物)的方法和系统,并将其与已知违禁物质的参考热分析图进行比较。
    • 45. 发明授权
    • Voltage sensing circuit
    • 电压检测电路
    • US6147529A
    • 2000-11-14
    • US207472
    • 1998-12-08
    • Jun-Lin YehChien-Chung Chen
    • Jun-Lin YehChien-Chung Chen
    • G05F3/24H03K5/08H03K17/22H03K5/22
    • H03K17/223G05F3/242H03K5/08
    • A voltage sensing circuit consists of a sensing node, a transistor of a first conductivity type, a diode-like device, a first reference voltage source, a transistor of a second conductivity type, and a second reference voltage source. The transistor of a first conductivity type is configured with one source/drain receiving an input voltage signal and another source/drain connected to the sensing node. The diode-like device receives the input voltage signal and, accordingly, generates a voltage-dropped signal. The first reference voltage source is connected to a gate of the transistor of the first conductivity type. The transistor of a second conductivity type is configured with one source/drain connected to the sensing node and a gate receiving the voltage-dropped signal. The second reference voltage source is connected to another source/drain of the transistor of the second conductivity type.
    • 电压感测电路由感测节点,第一导电类型的晶体管,二极管类器件,第一参考电压源,第二导电类型的晶体管和第二参考电压源组成。 第一导电类型的晶体管配置有接收输入电压信号的一个源极/漏极和连接到感测节点的另一个源极/漏极。 二极管状器件接收输入电压信号,因此产生降压信号。 第一参考电压源连接到第一导电类型的晶体管的栅极。 第二导电类型的晶体管配置有连接到感测节点的一个源极/漏极和接收电压下降信号的栅极。 第二参考电压源连接到第二导电类型晶体管的另一个源极/漏极。
    • 48. 发明授权
    • Multi-layer yarn structure and method for making the same
    • 多层纱线结构及其制作方法
    • US08171712B2
    • 2012-05-08
    • US12771148
    • 2010-04-30
    • Chih-Chang HsuChien-Chung Chen
    • Chih-Chang HsuChien-Chung Chen
    • D02G3/02
    • D02G3/367D10B2401/02
    • A multi-layer yarn structure and a method for making the same are provided. The multi-layer yarn structure includes a core layer, a layer of noncircular fibers, and an outer layer. The core layer has a plurality of hydrophobic fibers. The noncircular fibers surround the core layer to form a middle layer. The outer layer surrounds the middle layer and has a plurality of hydrophilic fibers. The method spins different fibers into multi-layer yarn for making textile with a soft, smooth, and thick feel. By utilizing inherent characteristics of the multi-layer yarn structure, the textile may regulate moisture released from the human body and keep the body dry and comfort.
    • 提供多层纱线结构及其制造方法。 多层纱结构包括芯层,非圆形纤维层和外层。 芯层具有多个疏水性纤维。 非圆形纤维围绕核心层形成中间层。 外层围绕中间层并具有多个亲水纤维。 该方法将不同的纤维旋转成多层纱线,使纺织品具有柔软,光滑和厚的感觉。 通过利用多层纱线结构的固有特性,纺织品可以调节从人体释放的水分并保持身体的干燥和舒适。