Communication system for a power distribution line United States Patent 05581229

05581229 is referenced by 152 patents and cites 53 patents.

The invention provides a layered modulation data communication systems characterized by numerous, asynchronous data transmitters operating on a power line. Data is modulated onto relatively low frequency subcarriers. Subcarriers are used to modulate carriers centered on a common frequency. The subcarriers are frequency division multiplexed. Data is recovered by demodulating the subcarriers from the carriers and subsequently demodulating the data from the subcarriers.

Title
Communication system for a power distribution line
Application Number
879204
Publication Number
5581229
Application Date
July 19, 1993
Publication Date
December 3, 1996
Inventor
Paul C Hunt
Brainerd
MN, US
Agent
Westman Champlin & Kelly P A
Assignee
Hunt Technologies
MN, US
IPC
H04M 11/04
View Original Source

Citations: 152 (view full list)

  1. Roy S Coutinho: Device and method for providing high speed data transfer through a drop line of a power line carrier communication system. Lucent Technologies, July 7, 1998: US05777769 (145 worldwide citation)
  2. Boris Ratner: RS-485 multipoint power line modem. ACEX Technologies, Elliot B Aronson, November 4, 1997: US05684826 (130 worldwide citation)
  3. Larry G Fischer, David S Russell: System and method for distributing RF signals over power lines within a substantially closed environment. ADC Telecommunications, Fogg Slifer & Polgaze P A, November 21, 2000: US06151480 (110 worldwide citation)
  4. Damian G Bonicatto, Verne J Olson, Chad K Wolter, Rolf J Flen: Data communication over power lines. Hunt Technologies, Merchant & Gould, June 26, 2007: US07236765 (105 worldwide citation)
  5. Woodson Dale Wynn: Power line communication systems. AT&T, September 14, 1999: US05952914 (92 worldwide citation)
  6. Damian G Bonicatto, Verne J Olson, Rolf J Flen, David F Olson: Power line communication system having time server. Hunt Technologies, Merchant & Gould, February 20, 2007: US07180412 (90 worldwide citation)
  7. Damian G Bonicatto, Verne J Olson, Chad K Wolter, Rolf J Flen, David F Olson: Locating endpoints in a power line communication system. Hunt Technologies, Merchant & Gould P C, June 22, 2010: US07742393 (80 worldwide citation)
  8. Rolf J Flen, Stuart L Haug, Matthew David Ruohoniemi: Endpoint transmitter and power generation system. Hunt Technologies, Merchant & Gould P C, September 5, 2006: US07102490 (79 worldwide citation)
  9. Rolf J Flen, Stuart L Haug, Matthew David Ruohoniemi: Endpoint receiver system. Hunt Technologies, Merchant & Gould P C, February 14, 2006: US06998963 (74 worldwide citation)
  10. Rolf J Flen, Stuart L Haug, Matthew David Ruohoniemi: Endpoint event processing system. Hunt Technologies, Merchant & Gould, December 5, 2006: US07145438 (71 worldwide citation)

References: 53 (view full list)

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