公开(公告)号：EP1198970B1

公开(公告)日：2005-12-14

申请号：EP00954338.0

申请日：2000-07-19

申请人： Infineon Technologies AG

发明人： FRENZEL, Rudi ,  HÖFER, Gerald

IPC分类号： H04Q11/04 ,  H04M11/06 ,  H04L5/06

CPC分类号： H04Q11/0471 ,  H04L5/06 ,  H04M11/062 ,  H04Q2213/13003 ,  H04Q2213/13034 ,  H04Q2213/13039 ,  H04Q2213/13082 ,  H04Q2213/13209 ,  H04Q2213/13294

摘要： The invention relates to a method for jointly transferring ISDN and ADSL data between a first station (10) and a second station (20) over a transmission line (1020), involving the following steps: modulating an ISDN-data stream (1012) to be transferred as a mixed data stream upstream to the second station (20) by means of an ASDL modulator (101) in an ASDL data stream in the first station (10); demodulating the mixed data stream in the second station (20) by means of an ASDL demodulator (201) in the corresponding transferred ASDL data stream (2011) and the corresponding transferred ISDN data stream (2012). The invention also relates to a corresponding device for implementing said method.

公开(公告)号：EP1129555B1

公开(公告)日：2005-01-26

申请号：EP99969900.2

申请日：1999-11-02

申请人： Infineon Technologies AG

发明人： HÖFER, Gerald

IPC分类号： H04L25/49 ,  H04L5/14 ,  H04L12/26

CPC分类号： H04L43/00 ,  H04L43/10 ,  H04L43/16

摘要： The invention generally relates to a modem connected via a digital interface to a switched public telephone network and to a method for probing the line properties. The modem communicates with a second modem also connected via a digital interface to the same switched public telephone network. The public telephone network may incorporate voice compression devices (ADPCM G.726, G.723 etc.), digital pads (digital attenuators), robbed bit signalling and echo cancelling devices. The probing sequence of the invention uses large amplitude changes in a symbol sequence (each symbol having a duration of 125 νs). After that single amplitude change, the signal may return to the previous value or continue with the new amplitude value for a number of symbols. The number of symbols is selected to be larger than any expected impulse response of a digital impairment of the channel. The amplitude value change must be large enough to produce a sufficient result in the presence of digital pads with or without the presence of RBS.

摘要翻译： 本发明一般涉及通过数字接口连接到交换式公共电话网络的调制解调器以及用于探测线路特性的方法。 调制解调器与也通过数字接口连接到同一交换公共电话网络的第二调制解调器进行通信。 公共电话网络可以包括语音压缩设备（ADPCM G.726，G.723等），数字电话（数字衰减器），抢占位信令和回声消除设备。 本发明的探测序列在符号序列（每个符号具有125μs的持续时间）中使用大的振幅变化。 在该单个幅度变化之后，信号可以返回到先前的值，或者继续用于多个符号的新的幅度值。 选择符号的数量大于信道的数字损伤的任何预期脉冲响应。 幅度值变化必须足够大，以便在存在或不存在RBS的情况下在存在数字焊盘的情况下产生足够的结果。

公开(公告)号：EP1177664A1

公开(公告)日：2002-02-06

申请号：EP00943579.3

申请日：2000-05-12

申请人： Infineon Technologies AG

发明人： HÖFER, Gerald

IPC分类号： H04L25/49

CPC分类号： H03M13/00 ,  H04J3/125 ,  H04L1/242 ,  H04L25/4927

摘要： Digital code words are transmitted via a digital communication network, e.g. from a digital modem (1) to an analog modem (5). Whenever an RBS technique is used for an RBS channel, a given bit, as a rule the LSB, of a corresponding code word is changed. In order to recognize and correct such RBS channels, training code words transmitted during a training phase are evaluated. If an RBS channel is detected, the given bit of the corresponding code word is set to a fixed value.

公开(公告)号：EP1129555A2

公开(公告)日：2001-09-05

申请号：EP99969900.2

申请日：1999-11-02

申请人： Infineon Technologies AG

发明人： HÖFER, Gerald

IPC分类号： H04L25/49 ,  H04L5/14 ,  H04L12/26

CPC分类号： H04L43/00 ,  H04L43/10 ,  H04L43/16

摘要： The invention generally relates to a modem connected via a digital interface to a switched public telephone network and to a method for probing the line properties. The modem communicates with a second modem also connected via a digital interface to the same switched public telephone network. The public telephone network may incorporate voice compression devices (ADPCM G.726, G.723 etc.), digital pads (digital attenuators), robbed bit signalling and echo cancelling devices. The probing sequence of the invention uses large amplitude changes in a symbol sequence (each symbol having a duration of 125 νs). After that single amplitude change, the signal may return to the previous value or continue with the new amplitude value for a number of symbols. The number of symbols is selected to be larger than any expected impulse response of a digital impairment of the channel. The amplitude value change must be large enough to produce a sufficient result in the presence of digital pads with or without the presence of RBS.

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

申请人： Infineon Technologies AG

发明人： HÖFER, Gerald ,  WIMÖSTERER, Stephan ,  ZOJER, Herbert

IPC分类号： H04M11/06 ,  H04Q11/04 ,  H04M3/00

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.

公开(公告)号：EP1198970A1

公开(公告)日：2002-04-24

申请号：EP00954338.0

申请日：2000-07-19

申请人： Infineon Technologies AG

发明人： FRENZEL, Rudi ,  HÖFER, Gerald

IPC分类号： H04Q11/04 ,  H04M11/06 ,  H04L5/06

CPC分类号： H04Q11/0471 ,  H04L5/06 ,  H04M11/062 ,  H04Q2213/13003 ,  H04Q2213/13034 ,  H04Q2213/13039 ,  H04Q2213/13082 ,  H04Q2213/13209 ,  H04Q2213/13294

摘要： The invention relates to a method for jointly transferring ISDN and ADSL data between a first station (10) and a second station (20) over a transmission line (1020), involving the following steps: modulating an ISDN-data stream (1012) to be transferred as a mixed data stream upstream to the second station (20) by means of an ASDL modulator (101) in an ASDL data stream in the first station (10); demodulating the mixed data stream in the second station (20) by means of an ASDL demodulator (201) in the corresponding transferred ASDL data stream (2011) and the corresponding transferred ISDN data stream (2012). The invention also relates to a corresponding device for implementing said method.

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

申请人： Infineon Technologies AG

发明人： HÖFER, Gerald ,  WIMÖSTERER, Stephan ,  ZOJER, Herbert

IPC分类号： H04M11/06 ,  H04Q11/04 ,  H04M3/00

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.