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49 条记录 (耗时 0.011 秒)

    RADIO FREQUENCY FILTER
    31.
    发明公开
    RADIO FREQUENCY FILTER 有权
    FUNKFREQUENZFILTER

    公开(公告)号：EP2498331A2

    公开(公告)日：2012-09-12

    申请号：EP10827183.4

    申请日：2010-11-02

    申请人： KMW Inc.

    发明人： KIM, Duk-Yong ,  PARK, Nam-Shin

    IPC分类号： H01P1/20 ,  H01P5/22 ,  H01P5/20

    CPC分类号： H03H7/46 ,  H01P1/20 ,  H01P1/203 ,  H03H7/0138 ,  H03H7/48 ,  H03H11/36 ,  H04B1/58

    摘要： The present invention relates to a radio frequency filter, wherein a new form of a filter with characteristics different from a general filter is obtained by coupling a hybrid coupler with the general filter. As for the construction thereof, the radio frequency filter includes: a coupler which receives an input signal via a first port for distributing the same to be output to a second port and a third port, and synthesizes signals input via the second port and the third port according to corresponding phases for outputting the same to the first port or a fourth port as output signals of the radio frequency filter; and a first filter section connected to the second and third ports of the coupler respectively at the first and second ports thereof and having preset frequency filtering characteristics.

    摘要翻译： 射频滤波器技术领域本发明涉及一种射频滤波器，其中通过将混合耦合器与通用滤波器耦合来获得具有与通用滤波器不同的特性的滤波器的新形式。 对于其结构，射频滤波器包括：耦合器，经由第一端口接收输入信号以将其输出到第二端口和第三端口，并且合成经由第二端口和第三端口输入的信号 端口，用于将其输出到第一端口或第四端口作为射频滤波器的输出信号; 以及分别在其第一和第二端口处连接到耦合器的第二和第三端口的第一滤波器部分，并且具有预设的频率滤波特性。

    EMPFANGSSCHALTUNG FÜR ÜBERTRAGUNGSSYSTEME MIT KUPFERKABELN
    33.
    发明公开
    EMPFANGSSCHALTUNG FÜR ÜBERTRAGUNGSSYSTEME MIT KUPFERKABELN 失效
    接收电路与铜电缆传输系统

    公开(公告)号：EP0970574A1

    公开(公告)日：2000-01-12

    申请号：EP98906792.1

    申请日：1998-03-19

    申请人： Siemens Schweiz AG

    发明人： RÜEGSEGGER, Stefan

    IPC分类号： H04L25/03 ,  H04B3/14

    CPC分类号： H04B1/58 ,  H04B1/581 ,  H04B1/583 ,  H04L5/1423

    摘要： This invention concerns a receiving circuit used in the construction of transmission systems with copper cables which can have differing characteristics, in particular, length and diameter. This receiving circuit contains a digital signal processing receiving unit (RX) which can be connected to a transmitting unit (TX) via a filter (FR) and a copper cable (SL1, SL2). The filter (FR) is provided with a high-pass characteristic for compensation of distortions from attenuation so that signal components in the low-frequency range are at least attenuated so that the dynamics of the signals transmitted via copper cable (SL1, SL2) via conductors of the largest possible diameter are reduced so that the resolution of the digital component of the receiving unit (RX) suffices for its processing, and the signal components in the low-frequency range are maximally dampened, so that the maximal attenuation arising in the frequency range used without the filter (FR) scarcely increases after use of the filter (FR) with copper cables (SL1, SL2) of the smallest possible diameter conductor.

    GABELSCHALTUNG
    34.
    发明公开
    GABELSCHALTUNG 失效
    叉电路

    公开(公告)号：EP0927471A1

    公开(公告)日：1999-07-07

    申请号：EP98902928.0

    申请日：1998-02-26

    申请人： Siemens Schweiz AG

    发明人： RÜEGSEGGER, Stefan

    IPC分类号： H04B1 ,  H04L5

    CPC分类号： H04L5/1423 ,  H04B1/58 ,  H04B1/581 ,  H04B1/583 ,  H04B3/03

    摘要： The present invention concerns a hybrid circuit which serves to connect a transmitting unit (TX) and a receiving unit (RX) to a double-conductor transmission line and has a bridge connection with four bridge branches each with two resistors (R1t, R2t: R1r, R2r; R3r, Rqr; R3t, Rqt) which are so designed and so connect the two outputs (txa1, txa2) of the transmitting unit (TX) and the two inputs (rxe1, rxe2) of the receiving unit (RX), that the components of the transmission signal which arise at the input of the receiving unit (RX) cancel each other out; the transmission line is connected under optional cut-in of a transmitter (TF) via the first resistors (Rqt and Rqr) of the third and fourth bridge branches (R3r, Rqr; R3t, Rqt) with the transmitting unit (TX) and via the second resistors (R3t and R3r) of the third and fourth bridge branches (R3r, Rqr; R3t, Rqt) with the receiving unit (RX). According to the invention, the resistors (R1t, R2t, R3r, Rqr and R1r, R2r, R3t, respectively) of the four bridge branches are selected so that impedance (Zb) provided to compensate impedance (ZI) of the transmission line takes on a value high enough that the error tolerance provided for the hybrid circuit can be adhered to, even without building in this impedance (Zb). Preferably, the hybrid circuit is connected to the input of the receiving unit (RX) via a filter (FR) which serves to equalize the dynamic range (dyn1, dyn2) of the signals which are transmitted over cables of differing diameters.

    ADAPTIVE HYBRID CIRCUIT
    35.
    发明公开
    ADAPTIVE HYBRID CIRCUIT 失效
    自适应GABELSCHALTUNG。

    公开(公告)号：EP0187778A1

    公开(公告)日：1986-07-23

    申请号：EP85903138.0

    申请日：1985-06-10

    申请人： NCR CORPORATION

    发明人： CLAESSEN, Gerardus, Albertus, Maria

    IPC分类号： H04L5 ,  G06G7 ,  H04B1 ,  H04B3 ,  H04L25

    CPC分类号： G06G7/163 ,  H04B1/58 ,  H04B3/03

    摘要： Un circuit hybride adaptatif est couplé entre un émetteur (19) et un récepteur (21) dans une station locale (9) couplée à une ligne de transmission (11) dans un réseau local. Un signal de sortie provenant du récepteur (21) et un signal de transmission sont appliqués à une porte OU-EXCLUSIF (49) dont la sortie est couplée à un intégrateur (39) qui fournit un signal de commande à un circuit d'ajustement (35) lequel développe une estimation de diaphonie laquelle est soustraite du signal sur la ligne de transmission (11) pour obtenir un signal modifié comme signal d'entrée au récepteur (21). Ainsi, la corrélation entre le signal de transmission et le signal de sortie provenant du récepteur (21) est réduit de manière adaptative pour tendre vers zéro, de sorte que le signal modifié appliqué au récepteur contient uniquement la composante du signal reçu. Dans le mode préférentiel de réalisation, le circuit d'ajustement (35) comprend une paire de varacteurs à pôles opposés (91, 93).

    HYBRID COIL CIRCUIT
    37.
    发明公开
    HYBRID COIL CIRCUIT 有权
    混合线圈电路

    公开(公告)号：EP3164944A1

    公开(公告)日：2017-05-10

    申请号：EP14741431.2

    申请日：2014-07-01

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： TROJER, Elmar ,  ERIKSSON, Per-Erik ,  LU, Chenguang ,  SANDSTRÖM, Lukas ,  BERG, Miguel

    IPC分类号： H04B3/28 ,  H04B3/20 ,  H03H7/48 ,  H04B1/58 ,  H04B3/30

    CPC分类号： H01Q7/00 ,  H01Q1/48 ,  H01Q5/335 ,  H04B1/58 ,  H04B3/20 ,  H04B3/28 ,  H04B3/30 ,  H04M3/005

    摘要： It is presented a hybrid coil circuit comprising: a transformer; a common mode choke, wherein all choke windings are magnetically coupled; an impedance matching device connected on a middle choke winding, the impedance matching device being connected to ground; a first port being provided between a first choke winding and the impedance matching device; a second port being provided between a third choke winding and the impedance matching device; a third port being provided between either end of a second transformer winding; a first inductor arranged between the impedance matching device and the first port; and a second inductor arranged between the impedance matching device and the second port, wherein the first inductor and the second inductor are magnetically coupled.

    摘要翻译： 提出了一种混合线圈电路，其包括：变压器; 共模扼流圈，其中所有扼流圈均磁耦合; 阻抗匹配装置，连接在中间扼流圈上，所述阻抗匹配装置接地;第一端口，设置在第一扼流圈和所述阻抗匹配装置之间; 在第三扼流线圈和阻抗匹配装置之间提供第二端口; 第三端口设置在第二变压器绕组的任一端之间; 布置在阻抗匹配装置和第一端口之间的第一电感器; 以及布置在阻抗匹配装置和第二端口之间的第二电感器，其中第一电感器和第二电感器磁耦合。

    WIRELESS COMMUNICATION APPARATUS
    38.
    发明公开
    WIRELESS COMMUNICATION APPARATUS 有权
    无线通信设备

    公开(公告)号：EP3041150A1

    公开(公告)日：2016-07-06

    申请号：EP14839776.3

    申请日：2014-08-05

    申请人： Sony Corporation

    发明人： IIDA, Sachio

    IPC分类号： H04B1/52 ,  H03H11/34 ,  H03H11/38 ,  H03H11/42 ,  H04B1/58

    CPC分类号： H03H11/344 ,  H03H7/002 ,  H03H11/42 ,  H04B1/52 ,  H04B1/525 ,  H04B1/58 ,  H04L5/14 ,  H04M1/026

    摘要： [Object] To propose a wireless communication apparatus capable of realizing separation of transmission signals and reception signals with a low power consumption and a small size.
    [Solution] Provided is a wireless communication apparatus including: a gyrator that includes at least four terminals; a single-phase differential converter that mutually converts single-phase signals and differential signals; a low-noise differential amplifier that amplifies reception signals that the gyrator outputs; and a differential power amplifier that amplifies transmission signals to be output to the gyrator. The gyrator transmits signals from a first terminal and a second terminal in the direction of a third terminal and a fourth terminal. Any of the single-phase differential converter, the low-noise amplifier, and the power amplifier are connected to the first terminal and second terminal, the third terminal and fourth terminal, the first terminal and third terminal, and the second terminal and fourth terminal of the gyrator.

    摘要翻译： 本发明的目的是提出一种无线通信装置，其能够以低功耗和小尺寸实现发送信号和接收信号的分离。 解决方案提供了一种无线通信设备，包括：回转器，其包括至少四个端子; 单相差分转换器，其相互转换单相信号和差分信号; 放大回转器输出的接收信号的低噪声差动放大器; 以及差分功率放大器，其放大要输出到回转器的传输信号。 回转器在第三终端和第四终端的方向上传输来自第一终端和第二终端的信号。 任何单相差分转换器，低噪声放大器和功率放大器都连接到第一端子和第二端子，第三端子和第四端子，第一端子和第三端子以及第二端子和第四端子 的回旋器。