From another board...

METHODS AND SYSTEMS FOR TRANSMISSION OF MULTIPLE MODULATED SIGNALS OVER WIRELESS NETWORKS

http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=1&f=G&l=50&d=PG01&s1=wi-lan.AS.&s2=%22cygnus+broadbands%22.AS.&co1=OR&p=1&OS=AN/wi-lan+OR+AN/"cygnus+broadbands"&RS=AN/wi-lan+OR+AN/"cygnus+broadbands"

This invention must be very valuable and important. Prior to this applicatioin, USPTO has issued 5 other patents to Wi-lan in regards to this technology. The latest was issued on 11/20/2012.

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=8315640.PN.&OS=PN/8315640&RS=PN/8315640