H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 27/26 (2006.01) H04W 76/04 (2009.01) H04J 11/00 (2006.01) H04L 1/00 (2006.01)
Patent
CA 2757201
The communication system includes a hybrid fiber/coax distribution network. A head end provides for downstream transmission of telephony and control data in a first frequency bandwidth over the hybrid fiber/coax distribution network and reception of upstream telephony and control data in a second frequency bandwidth over the hybrid fiber/coax distribution network. The head end includes a head end multicarrier modem for modulating downstream telephony information on a plurality of orthogonal carriers in the first frequency bandwidth and demodulating upstream telephony information modulated on a plurality of orthogonal carriers in the second frequency bandwidth. The system includes service units, operatively connected to the hybrid fiber/coax distribution network for upstream transmission of telephony and control data and for receipt of the downstream control data and telephony. Also provided is a method and apparatus for performing a Fast Fourier Transform (FFT).
Anderson Brian D.
Berg Darrell
Boualouang Somvay
Brede Jeffrey
Buska Steven J.
Adc Telecommunications Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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