公开(公告)号：EP1122650A3

公开(公告)日：2002-01-16

申请号：EP01201516.0

申请日：1997-01-24

申请人： ADC Telecommunications, Inc.

发明人： Dapper, Mark J. ,  Geile, Michael J. ,  Hill, Terrance J. ,  Roberts, Harold A. ,  Anderson, Brian D. ,  Brede, Jeffrey ,  Wadman, Mark S. ,  Kirscht, Robert J. ,  Herrmann, James J. ,  Fort, Michael J. ,  Buska, Steven P. ,  Solum, Jeff ,  Enfield, Debra Lea ,  Berg, Darrell ,  Smigelski, Thomas ,  Tucker, Thomas C. ,  Hall, Joe ,  Logajan, John M. ,  Boualouang, Somvay ,  Elpers, Mark D. ,  Elpers, Mark D. ,  Ferris, Tammy ,  Opoczynski, Adam ,  Russel, David S. ,  Nelson, Calvin ,  Samant, Niranjan R. ,  Chiappetta, Joseph F. ,  Sarnikowski, Scott

IPC分类号： G06F17/14 ,  H04L1/00 ,  H04L1/24 ,  H04L5/02 ,  H04L5/14 ,  H04L12/10 ,  H04L12/12 ,  H04L12/26 ,  H04L12/28 ,  H04L12/44 ,  H04L27/26 ,  H04M7/00 ,  H04L27/34 ,  H04L25/03

CPC分类号： H04N21/4382 ,  H04L1/0057 ,  H04L1/24 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/0091 ,  H04L5/14 ,  H04L5/143 ,  H04L27/2626 ,  H04L27/2657 ,  H04L27/34 ,  H04M7/006 ,  H04N7/17309 ,  H04N21/2221 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/6137 ,  H04N21/6187 ,  H04N21/6332

摘要： A communication system includes a hybrid fibre/coax distribution network. A head end generates a master clock signal and derives a head end RF clock signal locked in frequency to the master clock signal. A head end symbol clock signal is derived, locked in frequency to the master clock signal, and multiple strings of downstream digital data are converted to sequences of symbols at times determined by the symbol clock signal. The symbols are modulated onto multiple orthogonal carriers having frequencies determined by the RF clock signal. The modulated orthogonal downstream carriers are transmitted over the distribution network to remote locations.

公开(公告)号：EP1229683A2

公开(公告)日：2002-08-07

申请号：EP02076653.1

申请日：1996-02-06

申请人： ADC TELECOMMUNICATIONS, INC.

发明人： Dapper, Mark J. ,  Geile, Michael J. ,  Hill, Terrance J. ,  Roberts, Harold A. ,  Anderson, Brian D. ,  Brede, Jeffrey ,  Wadman, Mark S. ,  Kirscht, Robert J. ,  Herrmann, James J. ,  Fort, Michael J. ,  Buska, Steven P.

IPC分类号： H04L5/02 ,  H04L5/14

CPC分类号： H04L1/0057 ,  H04B10/272 ,  H04J3/14 ,  H04J14/0298 ,  H04L1/0061 ,  H04L1/203 ,  H04L1/24 ,  H04L5/023 ,  H04L25/03866 ,  H04L27/2614 ,  H04L27/2626 ,  H04L27/2647 ,  H04L27/2652 ,  H04L27/2657 ,  H04L27/2665 ,  H04L2001/0096 ,  H04L2027/0036 ,  H04L2027/0057 ,  H04L2027/0067 ,  H04N7/17309 ,  H04N21/6118 ,  H04N21/6168

摘要： The communication system includes a hybrid fiber/coax distribution network. A head end provides for downstream transmission of telephony and control data in a first frequency bandwidth over the hybrid fiber/coax distribution network and reception of upstream telephony and control data in a second frequency bandwidth over the hybrid fiber/coax distribution network. The head end includes a head end multicarrier modem for modulating at least downstream telephony information on a plurality of orthogonal carriers in the first frequency bandwidth and demodulating at least upstream telephony information modulated on a plurality of orthogonal carriers in the second frequency bandwidth. The head end further includes a controller operatively connected to the head end multicarrier modem for controlling transmission of the downstream telephony information and downstream control data and for controlling receipt of the upstream control data and upstream telephony information. The system further includes service units, each service unit operatively connected to the hybrid fiber/coax distribution network for upstream transmission of telephony and control data in the second frequency bandwidth and for receipt of the downstream control data and telephony in the first frequency bandwidth. Each service unit includes a service unit multicarrier modem for modulating at least the upstream telephony information on at least one carrier orthogonal at the head end terminal to another carrier in the second frequency bandwidth and for demodulating at least downstream telephony information modulated on at least a band of a plurality of orthogonal carriers in the first frequency bandwidth. Each service unit also includes a controller operatively connected to the service unit multicarrier modem for controlling the modulation of and demodulation performed by the service unit multicarrier modem. A method of monitoring communication channels, a distributed loop method for adjusting transmission characteristics to allow for transmission of data in a multi-point to point communication system, a polyphase filter technique for providing ingress protection and a scanning method for identifying frequency bands to be used for transmission by service units are also included.

摘要翻译： 通信系统包括混合光纤/同轴电缆分配网络。 前端提供在混合光纤/同轴电缆分配网络上的第一频带中的电话和控制数据的下行传输以及在混合光纤/同轴电缆分配网络上以第二频带宽度接收上行电话和控制数据。 头端包括头端多载波调制解调器，用于在第一频带中对多个正交载波调制至少下游电话信息，并且解调至少在第二频带中的多个正交载波上调制的上行电话信息。 前端还包括可操作地连接到头端多载波调制解调器的控制器，用于控制下游电话信息和下游控制数据的传输，并用于控制上游控制数据和上游电话信息的接收。 该系统还包括服务单元，每个服务单元可操作地连接到混合光纤/同轴电缆分配网络，用于电话的上行传输和第二频率带宽中的控制数据，以及用于在第一频带中接收下游控制数据和电话。 每个服务单元包括服务单元多载波调制解调器，用于至少将在头端终端正交的至少一个载波调制到第二频带中的另一个载波上的上行电话信息，并用于解调至少在至少一个频带上调制的下游电话信息 的第一频带中的多个正交载波。 每个服务单元还包括可操作地连接到服务单元多载波调制解调器的控制器，用于控制由服务单元多载波调制解调器执行的调制和解调。 监视通信信道的方法，用于调整传输特性以允许多点到点通信系统中的数据传输的分布式环路方法，用于提供入口保护的多相滤波器技术和用于识别要使用的频带的扫描方法 也包括服务单位的传输。

公开(公告)号：EP1229683A3

公开(公告)日：2002-11-06

申请号：EP02076653.1

申请日：1996-02-06

申请人： ADC Telecommunications, Inc

发明人： Dapper, Mark J. ,  Geile, Michael J. ,  Hill, Terrance J. ,  Roberts, Harold A. ,  Anderson, Brian D. ,  Brede, Jeffrey ,  Wadman, Mark S. ,  Kirscht, Robert J. ,  Herrmann, James J. ,  Fort, Michael J. ,  Buska, Steven P.

IPC分类号： H04L5/02 ,  H04L5/14 ,  H04L27/26

CPC分类号： H04L1/0057 ,  H04B10/272 ,  H04J3/14 ,  H04J14/0298 ,  H04L1/0061 ,  H04L1/203 ,  H04L1/24 ,  H04L5/023 ,  H04L25/03866 ,  H04L27/2614 ,  H04L27/2626 ,  H04L27/2647 ,  H04L27/2652 ,  H04L27/2657 ,  H04L27/2665 ,  H04L2001/0096 ,  H04L2027/0036 ,  H04L2027/0057 ,  H04L2027/0067 ,  H04N7/17309 ,  H04N21/6118 ,  H04N21/6168

摘要： In a point to multipoint network, which uses multicarrier transmission, the upstream transmission are so synchronised that they are orthogonal when they arrive at the head end.

公开(公告)号：EP1122650A2

公开(公告)日：2001-08-08

申请号：EP01201516.0

申请日：1997-01-24

申请人： ADC Telecommunications, Inc.

发明人： Dapper, Mark J. ,  Geile, Michael J. ,  Hill, Terrance J. ,  Roberts, Harold A. ,  Anderson, Brian D. ,  Brede, Jeffrey ,  Wadman, Mark S. ,  Kirscht, Robert J. ,  Herrmann, James J. ,  Fort, Michael J. ,  Buska, Steven P. ,  Solum, Jeff ,  Enfield, Debra Lea ,  Berg, Darrell ,  Smigelski, Thomas ,  Tucker, Thomas C. ,  Hall, Joe ,  Logajan, John M. ,  Boualouang, Somvay ,  Elpers, Mark D. ,  Downs, Matt ,  Ferris, Tammy ,  Opoczynski, Adam ,  Russel, David S. ,  Nelson, Calvin ,  Samant, Niranjan R. ,  Chiappetta, Joseph F. ,  Sarnikowski, Scott

IPC分类号： G06F17/14 ,  H04L1/00 ,  H04L1/24 ,  H04L5/02 ,  H04L5/14 ,  H04L12/10 ,  H04L12/12 ,  H04L12/26 ,  H04L12/28 ,  H04L12/44 ,  H04L27/26 ,  H04L27/34

CPC分类号： H04N21/4382 ,  H04L1/0057 ,  H04L1/24 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/0091 ,  H04L5/14 ,  H04L5/143 ,  H04L27/2626 ,  H04L27/2657 ,  H04L27/34 ,  H04M7/006 ,  H04N7/17309 ,  H04N21/2221 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/6137 ,  H04N21/6187 ,  H04N21/6332

摘要： A communication system includes a hybrid fibre/coax distribution network. A head end generates a master clock signal and derives a head end RF clock signal locked in frequency to the master clock signal. A head end symbol clock signal is derived, locked in frequency to the master clock signal, and multiple strings of downstream digital data are converted to sequences of symbols at times determined by the symbol clock signal. The symbols are modulated onto multiple orthogonal carriers having frequencies determined by the RF clock signal. The modulated orthogonal downstream carriers are transmitted over the distribution network to remote locations.

摘要翻译： 通信系统包括混合光纤/同轴电缆分配网络。 首端生成主时钟信号并且导出锁定在主时钟信号频率上的首端RF时钟信号。 导出首端符号时钟信号，锁定到主时钟信号的频率，并且在由符号时钟信号确定的时间，多串下游数字数据被转换为符号序列。 符号被调制到具有由RF时钟信号确定的频率的多个正交载波上。 调制的正交下行载波通过分配网络传输到远程位置。