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：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。