Comment by skymt

The patents in question:

http://www.google.com/patents/US5978791

http://www.google.com/patents/US6415280

http://www.google.com/patents/US6928442

http://www.google.com/patents/US7802310

http://www.google.com/patents/US7945539

http://www.google.com/patents/US7945544

http://www.google.com/patents/US7949662

http://www.google.com/patents/US8001096

http://www.google.com/patents/US8099420