CODEC CIRCUIT AND METHOD FOR INCREASING THE DATA TRANSMISSION RATE IN A MODEM TRANSMISSION
    1.
    发明申请
    CODEC CIRCUIT AND METHOD FOR INCREASING THE DATA TRANSMISSION RATE IN A MODEM TRANSMISSION 审中-公开
    编解码器电路和方法以提高数据传输速率在调制解调器传输

    公开(公告)号:WO0101667A3

    公开(公告)日:2001-08-16

    申请号:PCT/DE0001753

    申请日:2000-05-30

    CPC classification number: H04M11/06 H04L25/4927

    Abstract: The invention relates to a codec circuit for increasing the data transmission rate in a modem transmission. Said circuit comprises a first programmable digital filter (13) which is connected in a first transmitted signal path of the codec circuit, a second programmable digital filter (22) which is connected in a received signal path of the codec circuit and a modem signal identification unit (31) for identifying whether the transmitted signal, emitted in the transmitted signal path or whether the received signal, received in the received signal path is a modem signal. If a modem signal is identified, the modem signal identification unit (31) switches the first and second digital filters (13, 22) onto a broader filter bandwidth.

    Abstract translation: 用于与一个调制解调器传输增加数据传输速率编解码器电路第一切换到编解码器电路的可编程数字滤波器(13),一个发射机信号路径的第二连接在所述编解码器电路的可编程数字滤波器(22)的接收信号路径,一个 用于检测是否在发送信号路径的发送信号的排出或在接收信号路径接收到的信号中接收的是一个调制解调信号调制解调信号检测装置(31),调制解调信号检测装置(31),第一和第二数字滤波器(13, 22)在检测到调制解调器信号的切换到的加宽滤波器带宽。

    2.
    发明专利
    未知

    公开(公告)号:DE10240815B4

    公开(公告)日:2006-02-23

    申请号:DE10240815

    申请日:2002-08-30

    Abstract: A telephone subscriber (102) line (106) calling signal current setting procedure compares the measured current into the subscriber load from a calling signal generator (114) with a stored (122) preset value with and adjusts the generator supply voltage (124) to obtain the correct value. Includes Independent claims for equipment using the procedure.

    5.
    发明专利
    未知

    公开(公告)号:DE19636954B4

    公开(公告)日:2005-08-18

    申请号:DE19636954

    申请日:1996-09-11

    Abstract: The subscriber circuit has a number of subscriber line interface circuits combined in a multi-way subscriber line interface circuit (1). The high energy components (30,31,36,37) of each interface circuit are provided as separate components, with feedback via the respective interface circuit. Pref. the high energy components of each interface circuit include an optical switch (36,37) and a transistor (30,31) connected in front of a diode (32,33), with the feedback of the individual components applied via an AC current path and a DC current path.

    10.
    发明专利
    未知

    公开(公告)号:DE10059135B4

    公开(公告)日:2005-07-14

    申请号:DE10059135

    申请日:2000-11-29

    Abstract: A transceiver (1) picks up data to be transmitted from a data plated-wire memory via a first data line (3) and writes this data into a register (4). Data to be transmitted is assembled in the data register in data blocks, passed on via second data lines (5) to an encoder (6) to encode it with a Reed Solomon encoding method and converted with Fast Fourier Transformation. The transformed data is then converted to an analog data signal.

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