Cable communication systems and methods employing 256-qam upstream channels and having increased upstream capacity for supporting voice and/or data services
作者： Travis Halky , Steven E. Nielsen , Ronald Totten
DOI:
关键词:
摘要: Cable communication systems and methods to provide voice and/or data services subscriber premises via a cable plant that conveys upstream information over an path bandwidth, modem system including one or more demodulation tuners receive demodulate radio frequency (RF) signals. An RF signal includes encoded carrier wave having of between approximately 5 MHz at least 42 is modulated using quadrature amplitude modulation (QAM) with constituting some the information. A order QAM for first 256, tuner configured signal.
lens.org 参考文章(81)
Daniel K. Chappell, Ingress testing of CATV system utilizing remote selection of CATV node ,(1998)
Dennis A. Zimmerman, Ingress/egress management system ,(1996)
Peter Sherlock, M. Lamine Sylla, Jay Strater, William H. Blum, Marc W. Kauffman, Charles Eldering, Ingress detection and characterization by time/frequency map ,(2000)
James Edward Harris, Raleigh Benton Stelle, Method for Displaying Leakage Location and Leakage Magnitude ,(2007)
Mark Roberts, Richard L Shimp, Antenna for cable ingress/egress management signaling ,(2006)
Sheryl Leigh Woodward, Fiber-optic access network utilizing CATV technology in an efficient manner ,(2000)
Harvey R. Bialk, Paul E. Schauer, Jyoti A. Kulkarni, Method and system for generating geographic visual displays of broadband network data ,(2002)
Wei-Sing Chen, Guenter E. Roeck, Echo device method for locating upstream ingress noise gaps at cable television head ends ,(1997)
Philip Miguelez, Shawn M. Esser, Fred Slowik, Architecture to Communicate with standard Hybrid Fiber Coaxial RF Signals over a Passive Optical Network (HFC PON) ,(2007)
Peter Sherlock, M. Lamine Sylla, Jay Strater, William H. Blum, Marc W. Kauffman, Charles Eldering, Ingress detection and attenuation ,(1999)