Method of transforming HFC CATV analog fiber transmission to digital fiber transmission

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9781453
APP PUB NO 20160057459A1
SERIAL NO

14834346

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method of converting legacy HFC CATV cable systems, which transmit data over the optical fiber portion of the system using the optical counterpart of analog RF waveforms, such as RF QAM waveforms transduced to corresponding optical QAM waveforms, to improved HFC CATV systems that transmit data over the optical fiber using optical fiber optimized protocols, such as Ethernet frames and other optical fiber optimized digital transport protocols. According to the method, most aspects of the legacy HFC CATV system may be retained, however at the CATV head end, the optical fiber transmitter system is replaced by an improved system that extracts the underlying symbols from legacy waveforms, packages these symbols into optical fiber optimized packets, and transmits downstream. The legacy optical fiber nodes are replaced with improved nodes capable of receiving the packets and remodulating the symbols into RF waveforms suitable for injection into the system's CATV cable.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ALCATEL-LUCENT USA INC.MURRAY HILL, NJ1791

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Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
2003/0066,087 Digital transmission system having modulators remotely located from central media access control layer 34 2002
2015/0172,071 DISTRIBUTED CCAP CABLE MODEM TERMINATION SYSTEM 3 2014
 
NATIONAL CENTRAL UNIVERSITY (1)
2006/0067,698 Optical fiber system and method for carrying both CATV and Ethernet signals 8 2004
 
CISCO TECHNOLOGY, INC. (4)
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JUNIPER NETWORKS, INC. (3)
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ALCATEL-LUCENT USA INC. (4)
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2014/0150,041 DISTRIBUTED CABLE MODEM TERMINATION SYSTEM WITH SOFTWARE RECONFIGUABLE MAC AND PHY CAPABILITY 6 2014
2014/0150,047 VIRTUAL CCAP CABLE MODEM TERMINATION SYSTEM WITH SOFTWARE RECONFIGUABLE MAC AND PHY CAPABILITY 6 2014
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GAINSPEED, INC. (9)
8311412 Distributed cable modem termination system 28 2010
2011/0182,583 DISTRIBUTED CABLE MODEM TERMINATION SYSTEM 12 2010
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8365237 Method of CATV cable same-frequency time division duplex data transmission 3 2011
8644706 Distributed cable modem termination system with software reconfigurable MAC and PHY capability 8 2012
8910230 Method of transforming HFC CATV analog fiber transmission to digital fiber transmission 5 2013
8938769 Virtual converged cable access platforms for HFC cable networks 8 2013
9191113 Method of transforming HFC CATV analog fiber transmission to digital fiber transmission 3 2014
 
COMCAST CABLE COMMUNICATIONS, LLC (1)
2005/0246,756 System and method for providing multiple services in HFC CATV networks 7 2004
 
GILO VENTURES IL LP (1)
2008/0216,144 SYSTEM AND METHOD FOR SPECTRAL NODE SPLITTING IN A HYBRID FIBER OPTIC-COAXIAL CABLE NETWORK 13 2008
 
AT&T INTELLECTUAL PROPERTY I, L.P. (1)
7990977 Method, system, and device for sending data in a cable data service 4 2010
 
ARRIS ENTERPRISES LLC (1)
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FUTUREWEI TECHNOLOGIES, INC. (1)
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HARMONIC, INC. (1)
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AURORA NETWORKS, INC. (1)
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NEOPHOTONICS CORPORATION (1)
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BANK OF AMERICA, N.A. (1)
2010/0316,384 Point-to-multipoint high data rate delivery systems from optical node in HFC systems over existing and advanced coaxial network 7 2010
 
Gainespeed, Inc. (1)
8935739 Distributed CCAP cable modem termination system 5 2014
 
GOOGLE TECHNOLOGY HOLDINGS LLC (1)
2004/0244,043 Wideband DOCSIS on catv systems using port-trunking 22 2003
 
TIME WARNER CABLE ENTERPRISES LLC (1)
2012/0180,101 QUALITY FEEDBACK MECHANISM FOR BANDWIDTH ALLOCATION IN A SWITCHED DIGITAL VIDEO SYSTEM 7 2011
 
AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD. (4)
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* 2009/0129,484 Low Density Parity Check (LDPC) Encoded Higher Order Modulation 9 2008
 
AT&T CORP. (1)
2009/0205,007 Fiber-optic access network utilizing CATV technology in an efficient manner 11 2009
* Cited By Examiner

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