S Gupta, S Iyer, C Herbert, D Dudley - US Patent 7,779,065, 2010 - Google Patents
5,754,543 A* 5/1998 Seid........................... 370,351 6,078,946 A 6/2000 Johnson......................
TO9/200 6,144,641 A 11/2000 Kaplanet al. 6,289,096 B1* 9/2001 Suzuki....... 379,221.01 …