Content differentiated hierarchical modulation used in radio...

Details Content differentiated hierarchical modulation used in radio... Content differentiated hierarchical modulation used in radio...

2011-07-26

2011-07-26

Wang, Ted M (Department: 2611)

Pulse or digital communications

Transmitters

C375S260000, C375S267000, C375S299000

Reexamination Certificate

active

07986746

ABSTRACT:
The present invention employs hierarchical modulation to simultaneously transmit data over different modulation layers using a carrier RF signal. Each modulation layer may be of a higher or lower order than the other modulation layers. Certain embodiments of the present invention may transmit different information on the different modulation layers. Other embodiments of the present invention may use the different layers for processing different information streams.

REFERENCES:
patent: 5966412 (1999-10-01), Ramaswamy
patent: 7593697 (2009-09-01), Zhu et al.
patent: 7630451 (2009-12-01), Collins et al.
patent: 7894401 (2011-02-01), Von Elbwart et al.
patent: 2005/0121097 (2005-06-01), Walton et al.
patent: 2006/0171283 (2006-08-01), Vijayan
patent: 2006/0198454 (2006-09-01), Chung
patent: 2006/0280262 (2006-12-01), Malladi
patent: 2008/0025241 (2008-01-01), Bhushan et al.
patent: 2011/0002430 (2011-01-01), Kim et al.

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