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2039 条记录 (耗时 0.028 秒)

    SYSTEM FOR CALIBRATING A TIME CONSTANT OF AN INTEGRATED CIRCUIT, AND INTEGRATED CIRCUIT PROVIDED WITH SUCH A SYSTEM.
    92.
    发明公开
    SYSTEM FOR CALIBRATING A TIME CONSTANT OF AN INTEGRATED CIRCUIT, AND INTEGRATED CIRCUIT PROVIDED WITH SUCH A SYSTEM. 有权
    系统进行校准的时间常数集成电路和集成电路系统与这样的

    公开(公告)号：EP2382708A2

    公开(公告)日：2011-11-02

    申请号：EP10701528.1

    申请日：2010-01-28

    申请人： ST-Ericsson SA

    发明人： ANDRE, Eric ,  LEFEBVRE, Sébastien ,  AMIACH, Jonathan

    IPC分类号： H03H11/12 ,  H03H7/01

    CPC分类号： H03H11/12 ,  H03H7/01 ,  H03H2210/04 ,  H03M3/38 ,  H03M3/494

    摘要： System and method for calibrating a time constant R0Ci of an integrated electronic current-feedback continuous-time delta sigma analog/digital converter (modulator) having a variable-impedance filter coupled to input of the modulator, an analog input signal Vin of fixed frequency applied to the variable-impedance filter, wherein the analog input signal Vin attenuation engendered by the variable-impedance filter is measured, and the value of a time constant R0Ci in the modulator and value of the impedance of the variable-impedance filter are modified until an attenuation corresponding to the desired attenuation for the integrated electronic circuit modulator is obtained.

    摘要翻译： 系统和方法，用于校准具有耦合到所述调制器的输入到模拟应用固定频率的输入信号Vin的可变阻抗滤波器的时间的集成电子电流反馈连续时间Σ-Δ模/数转换器的恒定R0Ci（调制器） 到可变阻抗滤波器，worin模拟输入信号Vin衰减由可变阻抗滤波器靠近dered被测量，和的时间常数R0Ci在调制器和可变阻抗滤波器的阻抗的值的值被修改，直到在 衰减对应于所述集成电子电路调制器所需的衰减被获得。

    Constant impedance variable attenuator
    93.
    发明公开
    Constant impedance variable attenuator 审中-公开
    VariablerAbschwächermit konstanter Impedanz

    公开(公告)号：EP2372911A1

    公开(公告)日：2011-10-05

    申请号：EP10250719.1

    申请日：2010-04-01

    申请人： Thales Holdings UK Plc

    发明人： Ward, Chris

    IPC分类号： H03H11/24

    CPC分类号： H03H11/245

    摘要： An RF attenuator circuit comprising: at least a first voltage-variable resistive device connected between input and output nodes of the circuit to convey an RF signal along a signal path between the input and output nodes; at least a second voltage-variable resistive device connected between the signal path and ground; a differential amplifier having one input connected to means for supplying a reference voltage, another input coupled to the input node, and an output connected to the control voltage input of one of the voltage-variable resistive devices; an attenuator control voltage node connected to the control voltage input of the other voltage-variable resistive device; a predetermined impedance matching the expected output load impedance of the attenuator and connected between the output node and ground; and a constant current source connected to supply a constant current to the input node; the reference voltage being the constant current multiplied by the value of the matching impedance; whereby the differential amplifier provides a closed servo loop between the input node and at least one of the voltage-variable resistive devices to cause that device to slew to a resistance that presents the predetermined impedance at the input node, to preserve the voltage standing wave ratio of a signal conveyed through the attenuator circuit when the gain is changed by the attenuator control voltage applied to the attenuator control voltage node.

    摘要翻译： 一种RF衰减器电路，包括：连接在所述电路的输入和输出节点之间的至少第一可变电阻器件，以沿着所述输入和输出节点之间的信号路径传送RF信号; 连接在信号路径和地之间的至少第二可变电阻器件; 一个差分放大器，其一个输入端连接到提供参考电压的装置，耦合到输入节点的另一个输入端和连接到一个电压可变电阻装置的控制电压输入端的输出端; 连接到另一个可变电阻器件的控制电压输入的衰减器控制电压节点; 与所述衰减器的预期输出负载阻抗匹配并连接在所述输出节点与地之间的预定阻抗; 以及恒流源，连接以向输入节点提供恒定电流; 参考电压是恒定电流乘以匹配阻抗的值; 由此差分放大器在输入节点和至少一个可变电阻器件之间提供闭合的伺服环路，以使该器件转到在输入节点处呈现预定阻抗的电阻，以保持电压驻波比 当增益被施加到衰减器控制电压节点的衰减器控制电压改变时，通过衰减器电路传送的信号。

    TUNEABLE FILTER
    95.
    发明公开
    TUNEABLE FILTER 审中-公开
    可调谐滤波器

    公开(公告)号：EP2223428A1

    公开(公告)日：2010-09-01

    申请号：EP08854689.0

    申请日：2008-11-14

    申请人： BAE Systems PLC

    发明人： EASTON, Nicholas John ,  PESCOD, Christopher Ralph ,  JOYCE, Richard Peter

    IPC分类号： H03D7/16 ,  H03H11/12

    CPC分类号： H03D7/163 ,  H03H11/12

    摘要： A tuneable filter is provided in whicha received signal in a first frequency rangeis translated to a signal of a higher frequency rangeby means of a switchable frequency oscillator signal, filtered in a narrow band filter and then down-converted, preferably to the first frequency range. The switchable frequency oscillator signals are generated by a synthesiser which operates by mixing oscillator signals of different frequencies, selected by means of fast- switching microwave switches, in order to generate the required range of oscillator signal frequencies.

    Applications of Nano-Enabled Large Area Macroelectronic Substrates Incorporating Nanowires and Nanowire Composites
    96.
    发明公开
    Applications of Nano-Enabled Large Area Macroelectronic Substrates Incorporating Nanowires and Nanowire Composites 审中-公开
    Anwendung von Nano-Bereitengrossflûchigenmakroelektronischen Substraten mit Nanoleitungen und Nanoleitungszusammensetzungen

    公开(公告)号：EP2218681A2

    公开(公告)日：2010-08-18

    申请号：EP10165017.4

    申请日：2003-09-30

    申请人： Nanosys, Inc. Et AL.

    发明人： Stumbo, David P ,  Empedocles, Stephen ,  Niu, Chunming ,  Duan, Xiangfeng

    IPC分类号： C01B31/02 ,  H03H11/20 ,  H01L29/06 ,  H01L21/00

    CPC分类号： H01L51/0048 ,  B82Y10/00 ,  G06K19/07749 ,  H01L21/02603 ,  H01L21/02628 ,  H01L27/20 ,  H01L29/0665 ,  H01L29/0673 ,  H01L29/42392 ,  H01L29/66439 ,  H01L31/035281 ,  H01L2224/16227 ,  H01P1/184 ,  Y02E10/50

    摘要： Macroelectronic substrate materials incorporating nanowires are describes. These are used to provide underlying electronic elements (e.g., transistors and the like) for a variety of different applications. Methods for making the macroelectronic substrate materials are disclosed. One application is for transmission an reception of RF signals in small, lightweight sensors. Such sensors can be configured in a distributed sensor network to provide security monitoring. Furthermore, a method and apparatus for a radio frequency identification (RFID) tag is described. The RFID tag includes an antenna and a beam-steering array. The beam-steering array includes a plurality of tunable elements. A method and apparatus for an acoustic cancellation device and for an adjustable phase shifter that are enabled by nanowires are also described.

    摘要翻译： 描述了纳入纳米线的宏观电子衬底材料。 这些用于为各种不同的应用提供底层电子元件（例如，晶体管等）。 公开了制造宏电子衬底材料的方法。 一种应用是在小型轻型传感器中传输RF信号的接收。 这样的传感器可以配置在分布式传感器网络中，以提供安全监控。 此外，描述了用于射频识别（RFID）标签的方法和装置。 RFID标签包括天线和波束导向阵列。 光束转向阵列包括多个可调谐元件。 还描述了用于通过纳米线实现的声消除装置和可调移相器的方法和装置。

    Integrated programmable gain amplifier circuit and system including said circuit
    99.
    发明公开
    Integrated programmable gain amplifier circuit and system including said circuit 审中-公开
    带增益和progammierbarer系统集成放大器包含放大器

    公开(公告)号：EP2197109A1

    公开(公告)日：2010-06-16

    申请号：EP09179092.3

    申请日：2009-12-14

    申请人： STMicroelectronics Srl

    发明人： Nicollini, Germano ,  Nagari, Angelo

    IPC分类号： H03H11/12 ,  H03G1/00

    CPC分类号： H03G1/0088 ,  H03F3/45475 ,  H03F2203/45526 ,  H03F2203/45594 ,  H03H11/126 ,  H03H11/1291

    摘要： An integrated programmable gain amplifier circuit (22), for receiving, at input, an analog signal (S MC ), including an operational amplifier (33) and a gain setup network (NRC IN , NRC F ) including resistive elements (R 1 -R 4 , Rf 1 -Rf n ) and selection elements (S 1 -S n ), which may be controlled in order to setup the gain of said amplifier circuit (22), is described.
    The gain setup network (NRC IN , NRC F ) further includes capacitive elements (C1-C3, Cf 1 -Cf n ), for defining, together with the resistive elements (R 1 -R 4 ) and the operational amplifier (33), an anti-aliasing filter of the active RC type.

    摘要翻译： 用于接收，在输入到模拟信号（S MC），包括运算放大器（33）和一个增益setupnetwork（NRC IN，NRC F）包括电阻元件（R 1集成的可编程增益放大器电路（22） - R 4，RF 1射频S）和选择元件（S 1 -S n），其可以以被控制，以设定所述放大电路的增益（22）进行说明。 增益setupnetwork（NRC IN，NRC F）还包括：电容元件（C1-C3，CF 1为-CF n）时，为限定，与所述电阻元件（R 1 -R 4）和运算放大器（33）一起， 的抗混叠的有源RC类型的过滤器。