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49 条记录 (耗时 0.01 秒)

    Radio frequency filter
    1.
    发明授权
    Radio frequency filter 有权

    公开(公告)号：EP2884578B1

    公开(公告)日：2018-08-15

    申请号：EP15150944.5

    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 ,  H01P1/203 ,  H03H7/48 ,  H03H11/36 ,  H04B1/58 ,  H03H7/01 ,  H03H7/46

    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.

    Active bidirectional splitter for single ended media
    3.
    发明公开
    Active bidirectional splitter for single ended media 有权
    Aktiver bidirektionaler SplitterfürSingle-end-Medien

    公开(公告)号：EP2237435A1

    公开(公告)日：2010-10-06

    申请号：EP09157045.7

    申请日：2009-03-31

    申请人： EqcoLogic N.V.

    发明人： Maillard, Xavier ,  Kuijk, Maarten

    IPC分类号： H04B1/58 ,  H04L5/14 ,  H04L25/02

    CPC分类号： H04B1/58 ,  H04L5/1423 ,  H04L25/0278

    摘要： An active bidirectional splitter (212) for transmission and reception of data signals over a single ended transmission medium (105) comprises an input port (150), an output port (152) and a differential combined input/output port (151), a first differential output driver (115) for receiving an input signal (144) from the input port (150) and transmitting this signal to the differential input/output port (151), a second differential output driver (116) for receiving the input signal (144) from the input port (150), a first averaging circuit (121) for averaging the differential signal (146, 147) at the differential input/output port (151), a second averaging circuit (120) for averaging the differential signal (144, 145) at the output of the second differential output driver (116), and a receiver (117) for receiving both averaged signals (118, 119) from the first averaging circuit (121) and the second averaging circuit (120) and for generating therefrom an output signal on the output port (152).

    摘要翻译： 用于通过单端传输介质（105）传输和接收数据信号的主动双向分离器（212）包括输入端口（150），输出端口（152）和差分组合输入/输出端口（151）， 第一差分输出驱动器（115），用于从输入端口（150）接收输入信号（144）并将该信号发送到差分输入/输出端口（151）;第二差分输出驱动器（116），用于接收输入信号 （144），用于对差分输入/输出端口（151）处的差分信号（146,147）进行平均的第一平均电路（121），用于对差分输入端口（150）进行平均的第二平均电路（120） 在第二差分输出驱动器（116）的输出处的信号（144,145）和接收器（117），用于从第一平均电路（121）和第二平均电路（120）接收两个平均信号（118,119） ）并且用于从其输出在输出端口上的输出信号 （152）。

    Transmitter/receiver interface apparatus and method for a bi-directional transmission path
    4.
    发明公开
    Transmitter/receiver interface apparatus and method for a bi-directional transmission path 失效
    用于双向传输路径发送器/接收器接口的装置和方法

    公开(公告)号：EP0746117A2

    公开(公告)日：1996-12-04

    申请号：EP96105423.6

    申请日：1996-04-04

    申请人： MOTOROLA, INC.

    发明人： May, Michael R.

    IPC分类号： H04B3/03 ,  H04B1/58

    CPC分类号： H04B1/58 ,  H04Q2213/13034 ,  H04Q2213/13199 ,  H04Q2213/13209 ,  H04Q2213/13302 ,  H04Q2213/13306 ,  H04Q2213/1332

    摘要： A transmitter/receiver interface (12) for use with a bi-directional transmission path (18) couples a transmitter (14) and a receiver (16) to the bi-directional transmission path (18). The transmitter/receiver interface (12) separates transmitted signals (20) and received signals (22) and routes them from the transmitter (14) and to the receiver (16) with negligible interference. The transmitter/receiver interface (12) incorporates coupling elements (44 and 50) that couple the transmitter to the transmission path and incorporates networks that couple the receiver to the transmission path. Impedances of the networks are derived based on the coupling elements and the transfer characteristics of the transmission path to provide consistent attenuation of the transmit signal over a large frequency range.

    摘要翻译： 的发射机/接收器接口（12），用于使用与双向传输路径（18）耦合的发射器（14）和接收器（16）连接到双向传输路径（18）。 发送器/接收器接口（12），单独的反式mitted信号（20）和接收信号（22）和从发送器（14）和所述接收器（16）具有可忽略的干扰它们路由。 发送器/接收器接口（12）包括联接元件（44和50）做了几个发射机到传输路径，并结合网络做耦合接收器到传输路径中的网络的阻抗导出基于所述耦合元件和转印。 的传输路径的特性在大的频率范围内，以提供所述发射信号的一致衰减。

    TELECOMMUNICATION TERMINAL
    6.
    发明公开
    TELECOMMUNICATION TERMINAL 失效
    终端TELE传输。

    公开(公告)号：EP0132272A1

    公开(公告)日：1985-01-30

    申请号：EP84900550.0

    申请日：1984-01-13

    申请人： TELEFONAKTIEBOLAGET L M ERICSSON

    发明人： ERIKSSON, Anders, Erik

    IPC分类号： H04L5 ,  H04B1 ,  H04B3

    CPC分类号： H04B1/58

    摘要： Terminal de télécommunications avec commutation automatique d'une opération à quatre fils à une opération à deux fils. Le terminal est pourvu d'un circuit de détection de la tension (5) détectant le chemin pris par l'alimentation en tension de courant continu au terminal et, en réponse à cela, commandant les commutateurs (8, 11) qui commutent le terminal à des conditions d'opérations prédominantes.

    TRANSMITTER/RECEIVER FOR BIDIRECTIONAL COMMUNICATIONS
    10.
    发明授权
    TRANSMITTER/RECEIVER FOR BIDIRECTIONAL COMMUNICATIONS 有权
    发送器/接收器中双向沟通

    公开(公告)号：EP1481488B1

    公开(公告)日：2005-06-15

    申请号：EP03705631.4

    申请日：2003-02-26

    申请人： Infineon Technologies AG

    发明人： OLSON, Allan ,  RANDAHL, Torbjörn

    IPC分类号： H04B1/44

    CPC分类号： H04B1/525 ,  H04B1/58

    摘要： In a transmitter/receiver for bidirectional communication with a transmission medium (11), the transmitter comprises an amplifier (1) having an input terminal (4) for signals to be transmitted, an output stage (3) with output terminals (5, 6) coupled via resistors (7, 8) to the transmission medium (11), and a negative feedback circuit (2) connected with its input terminals to the output terminals (5, 6) of the output stage (3) and with its output terminal to the input terminal of the amplifier (1). The receiver is connected with first input terminals (12, 13) to the output terminals (5, 6) of the output stage (3). A current mirror (14) is connected with its input terminal to the input terminal of the amplifier output stage (3) and with its output terminals (15, 16) via resistors (17, 18) across a load (19). The load (19) is connected across second input terminals (20, 21) of the receiver (9´). The receiver (9´) is adapted to extract signals received from the transmission medium (11) by subtracting voltages between said second input terminals (20, 21) from voltages between said first input terminals (12, 13).