US7567154 | page 8 | https://thedailydialectics.com/pdfs/wipow/US7567154/US7567154.pdf
U.S. Patent Jul. 28, 2009 Sheet 7 of 12 US 7,567,154 B2 ie 60 60 34 ea a0 \/ 60 /\ FIG. 9A 10 FIG. 9B FIG. 10