利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

15 条记录 (耗时 0.009 秒)

    FILTER CIRCUITRY
    4.
    发明公开
    FILTER CIRCUITRY 审中-公开
    滤波电路

    公开(公告)号：EP2850729A1

    公开(公告)日：2015-03-25

    申请号：EP13731940.6

    申请日：2013-05-15

    申请人： Broadcom Corporation

    发明人： KAUNISTO, Risto, Heikki, Sakari ,  KAUKOVUORI, Jouni, Kristian ,  ELORANTA, Petri, Tapani ,  HEIKKINEN, Jari, Johannes ,  RIEKKI, Jonne, Juhani

    IPC分类号： H03H7/01

    CPC分类号： H04B1/109 ,  H03H7/0153 ,  H03H7/1733 ,  H03H7/1791 ,  H03H7/425 ,  H03H7/427 ,  H03H11/126 ,  H03H11/1291 ,  H03H2001/0078 ,  H03H2007/013

    摘要： Embodiments provide methods, devices,circuitry and systems for supporting or implementing functionality to provide a filtering circuit, and for providing a transmitter, receiver or transceiver incorporating the same. One embodiment provides a circuit for filtering signals. The circuit outputs a plurality of signals at a plurality of frequencies, each of the signals being attenuated by an amount determined by the frequency of the signal. The circuit attenuates signals output at a first frequency by an amount which is low relative to the attenuation of signals output at frequencies other than the first frequency. The circuit further attenuates signals output at a second frequency by an amount which is high relative to the attenuation of signals output at frequencies other than the second frequency. Responsive to a change in the control signal, the circuit changes the first and second frequencies while maintaining a fixed ratio between the first and second frequencies.

    FILTER DEVICE
    5.
    发明公开
    FILTER DEVICE 审中-公开
    FILTERVORRICHTUNG

    公开(公告)号：EP2106023A4

    公开(公告)日：2010-02-03

    申请号：EP07832108

    申请日：2007-11-19

    申请人： PANASONIC CORP

    发明人： YAMAKAWA TAKEHIKO ,  OKAJIMA TOSHIYUKI ,  NAKATSUKA HIROSHI ,  ONISHI KEIJI

    IPC分类号： H03H7/01 ,  H04B1/18

    CPC分类号： H03H7/0153 ,  H03H7/0115 ,  H03H7/1708 ,  H03H7/1725 ,  H03H7/1733 ,  H03H7/1758 ,  H03H2007/013 ,  H03H2210/012

    摘要： A high frequency filter includes an inductor (2), a serial resonance circuit (31) including an inductor (3a) and capacitors (4a and 5a), a serial resonance circuit (32) including an inductor (3b) and capacitors (4b and 5b), and a varactor diode (6) connected between a connection point between the capacitor (4a) and the capacitor (5a) and a connection point between the capacitor (4b) and the capacitor (5b). A controller (1) simultaneously changes two attenuation pole frequencies of the filter device by changing a capacitance of the varactor diode (6).

    摘要翻译： 高频滤波器包括电感器（2），包括电感器（3a）和电容器（4a和5a）的串联谐振电路（31），包括电感器（3b）和电容器（4b和4b）的串联谐振电路 5b）以及连接在电容器（4a）和电容器（5a）之间的连接点与电容器（4b）和电容器（5b）之间的连接点之间的变容二极管（6）。 控制器（1）通过改变变容二极管（6）的电容同时改变滤波器装置的两个衰减极点频率。

    FILTER DEVICE
    7.
    发明公开
    FILTER DEVICE 审中-公开
    过滤设备

    公开(公告)号：EP2106023A1

    公开(公告)日：2009-09-30

    申请号：EP07832108.0

    申请日：2007-11-19

    申请人： Panasonic Corporation

    发明人： YAMAKAWA, Takehiko ,  OKAJIMA, Toshiyuki ,  NAKATSUKA, Hiroshi ,  ONISHI, Keiji

    IPC分类号： H03H7/01 ,  H04B1/18

    CPC分类号： H03H7/0153 ,  H03H7/0115 ,  H03H7/1708 ,  H03H7/1725 ,  H03H7/1733 ,  H03H7/1758 ,  H03H2007/013 ,  H03H2210/012

    摘要： A high frequency filter includes an inductor (2), a serial resonance circuit (31) including an inductor (3a) and capacitors (4a and 5a), a serial resonance circuit (32) including an inductor (3b) and capacitors (4b and 5b), and a varactor diode (6) connected between a connection point between the capacitor (4a) and the capacitor (5a) and a connection point between the capacitor (4b) and the capacitor (5b). A controller (1) simultaneously changes two attenuation pole frequencies of the filter device by changing a capacitance of the varactor diode (6).

    摘要翻译： 高频滤波器包括电感器（2），包括电感器（3a）和电容器（4a和5a）的串联谐振电路（31），包括电感器（3b）和电容器（4b和4b）的串联谐振电路 5b）以及连接在电容器（4a）和电容器（5a）之间的连接点与电容器（4b）和电容器（5b）之间的连接点之间的变容二极管（6）。 控制器（1）通过改变变容二极管（6）的电容同时改变滤波器装置的两个衰减极点频率。

    FILTRE TRACTABLE RAPIDE
    8.
    发明公开
    FILTRE TRACTABLE RAPIDE 有权
    快速跟踪滤波器

    公开(公告)号：EP2070192A1

    公开(公告)日：2009-06-17

    申请号：EP07820969.9

    申请日：2007-10-05

    申请人： Thales

    发明人： POUPLIER, Marc

    IPC分类号： H03H7/01

    CPC分类号： H03H7/12 ,  H03H7/1708 ,  H03H7/1733 ,  H03H7/175

    摘要： The invention relates to a band-pass filter including at least a first oscillating circuit comprising inductive means (L1, L2) in parallel with capacitive means (Cij), and a second oscillating circuit comprising inductive means (L3, L4) arranged in parallel with the capacitive means (Cij), the first oscillating circuit being coupled to the second oscillating circuit, characterised in that the capacitive means (Cij1) of the first oscillating circuit include a set of variable capacitive members (C11, C12, C13, C14) arranged in series and with a fixed capacity (C1), in that the capacitive members of the second oscillating circuit include a set of variable capacitive members (C21, C22, C23, C24) arranged in series and with a fixed capacity (C2), in that the first oscillating circuit and the second oscillating circuit are coupled through capacitive members having essentially fixed values (C3, C4), and in that the capacitive coupling members are connected to a middle point (P1, P2) of two variable capacitive members.