US Patent Application No: 2002/0010,870

Number of patents in Portfolio can not be more than 2000

Method and apparatus for dual-band modulation in powerline communication network systems

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Abstract

A novel method and apparatus for modulating in dual operational bands in powerline networking systems is described. A transmitter and a receiver are described wherein the transmitter and receiver are operable in different modulation frequency bands. The present invention can easily switch between operational frequency bands by utilizing a fundamental signal for performing modulations in a first frequency band and by utilizing a first alias signal for performing modulations in a second frequency band. The present inventive method and apparatus can switch operation from a first operational frequency band to a second operational frequency band by modifying two components in existing transmitters and only one component in existing OFDM receivers. Advantageously, therefore, the present invention can be utilized with existing powerline networking technology.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CONEXANT SYSTEMS, INC.NEWPORT BEACH, CA589

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gardner, Steven Holmsen San Diego, CA 3 164

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
CURRENT TECHNOLOGIES, LLC (26)
6,977,578 Method of isolating data in a power line communications network 30 2001
6,958,680 Power line communication system and method of using the same 74 2001
7,103,240 Method and apparatus for providing inductive coupling and decoupling of high-frequency, high-bandwidth data signals directly on and off of a high voltage power line 25 2001
7,414,518 Power line communication device and method 1 2002
7,042,351 Data communication over a power line 50 2002
7,102,478 Power line coupling device and method of using the same 13 2002
7,132,819 Floating power supply and method of using the same 4 2002
7,076,378 Device and method for providing power line characteristics and diagnostics 10 2002
6,998,962 Power line communication apparatus and method of using the same 94 2002
6,965,302 Power line communication system and method of using the same 95 2002
7,046,124 Power line coupling device and method of using the same 18 2003
6,980,090 Device and method for coupling with electrical distribution network infrastructure to provide communications 50 2003
6,950,567 Method and apparatus for providing inductive coupling and decoupling of high-frequency, high-bandwidth data signals directly on and off of a high voltage power line 63 2003
7,075,414 Device and method for communicating data signals through multiple power line conductors 56 2003
7,460,467 Voice-over-IP network test device and method 4 2003
7,064,654 Power line communication system and method of operating the same 25 2003
6,980,091 Power line communication system and method of operating the same 57 2003
6,965,303 Power line communication system and method 65 2003
7,113,134 Transformer antenna device and method of using the same 17 2004
7,250,848 Power line communication apparatus and method of using the same 7 2005
7,307,511 Power line communication system and method 5 2005
7,301,440 Power line communication system and method 8 2005
7,245,212 Power line communication apparatus and method of using the same 6 2005
7,218,219 Data communication over a power line 5 2006
7,453,352 Data communication over a power line 0 2007
7,701,325 Power line communication apparatus and method of using the same 3 2007
 
SUBAUDITION WIRELESS LLC (5)
7,053,756 Facilitating communication of data signals on electric power systems 23 2001
7,199,699 Facilitating communication with power line communication devices 12 2002
6,982,611 Power line coupling device and method of using the same 16 2002
7,308,103 Power line communication device and method of using the same 8 2003
7,224,243 Power line coupling device and method of using the same 2 2005
 
BROADCOM EUROPE LIMITED (3)
8,213,895 Multi-wideband communications over multiple mediums within a network 0 2007
7,795,973 Programmable gain amplifier 1 2008
7,956,689 Programmable gain amplifier and transconductance compensation system 0 2009
 
AT&T INTELLECTUAL PROPERTY II, L.P. (2)
7,852,837 Wi-Fi/BPL dual mode repeaters for power line networks 0 2004
7,453,353 Inbound interference reduction in a broadband powerline system 2 2006
 
BROADCOM NETWORKS SPAIN, S.L. (2)
7,899,436 Multi-wideband communications over power lines 2 2006
7,877,078 Power line communication networks and methods employing multiple widebands 0 2009
 
AT&T CORP. (1)
7,091,849 Inbound interference reduction in a broadband powerline system 10 2004
 
BROADCOM CORPORATION (1)
7,860,146 Adaptative multi-carrier code division multiple access 2 2006
 
GIGLE NETWORKS SL (1)
7,808,985 Network repeater 2 2006
 
GIGLE SEMICONDUCTOR LIMITED (1)
8,406,239 Multi-wideband communications over multiple mediums 0 2007
 
SHARP KABUSHIKI KAISHA (1)
6,985,456 Method to reduce interference and increase effective capacity of power line networking systems 5 2001
 
SIGMA DESIGNS ISRAEL S.D.I. LTD. (1)
7,830,907 Frame structure for OFDM signaling, including beacons and traffic 4 2004
 
SPIDCOM TECHNOLOGIES (1)
7,746,763 Method for transmitting data by means of a carrier current 0 2004
 
VIASAT, INC. (1)
7,876,849 Data transmission method and apparatus using networked receivers having spatial diversity 0 2006