Communicating data using wideband communications

Details Communicating data using wideband communications Communicating data using wideband communications

2006-12-12

2006-12-12

Kim, Kevin (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

C375S350000, C375S260000

Reexamination Certificate

active

07149252

ABSTRACT:
This disclosure relates to varying load and modulation applied to each of multiple frequency subchannels based on anticipated attenuation experienced by those subchannels. Communicating data includes identifying a static component of a transmission medium for wideband communications having at least two subchannels, determining a function of noise or attenuation versus frequency for the static component, selecting wideband modulation schemes for the subchannels based on the function determined, and communicating a data signal over the subchannels. Independent demodulation functions may be applied to at least two of the subchannels.

REFERENCES:
patent: 5268933 (1993-12-01), Averbuch
patent: 5598435 (1997-01-01), Williams
patent: 5748677 (1998-05-01), Kumar
patent: 5852630 (1998-12-01), Langberg et al.
patent: 6035000 (2000-03-01), Bingham
patent: 6097763 (2000-08-01), Djokovic et al.
patent: 6141356 (2000-10-01), Gorman

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