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1.发明授权KODEC-SCHALTUNG UND VERFAHREN ZUR ERHÖHUNG DER DATENÜBERTRAGUNGSRATE BEI EINER MODEM-ÜBERTRAGUNG 有权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：EP1190561B1
公开(公告)日：2004-11-03
申请号：EP00945586.6
申请日：2000-05-30
CPC分类号： H04M11/06 , H04L25/4927
摘要： 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.
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2.发明公开KODEC-SCHALTUNG UND VERFAHREN ZUR ERHÖHUNG DER DATENÜBERTRAGUNGSRATE BEI EINER MODEM-ÜBERTRAGUNG 有权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：EP1190561A2
公开(公告)日：2002-03-27
申请号：EP00945586.6
申请日：2000-05-30
CPC分类号： H04M11/06 , H04L25/4927
摘要： 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.
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3.发明公开
公开(公告)号：EP1198932A1
公开(公告)日：2002-04-24
申请号：EP00952936.3
申请日：2000-07-13
CPC分类号： H04M11/062
摘要： The invention relates to a broadband network access device for transmitting narrow-band low-frequency voice signals and broadband high-frequency data signals. According to the invention, voice data is scanned in the data timing pattern and is subsequently decimated. The transmission of data, which is already decimated to the voice cycle, to the voice DSP (DSP) is still effected in the data timing pattern. The shift to the voice timing pattern ensues directly before the voice DSP in a synchronization interface (SM). In the opposite direction of transmission, the process is carried out in a corresponding manner. The invention is used in xDSL methods, e.g. ADSL.Lite.
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