US. Patent
Aug. 5, 2008
Sheet 5 of6
US 7,409,175 B2
FIG. 5A
3
t
mo /1.
MW
.3
0 W
313sa.
3/3 3 1|
.1/l3
2¢
31H/
w
m /,
ww
s
W
u
3(1
m
w
w}
a
5..
w
{0mw3
M“-I“a
mmw5om/V
\
?1. L.
w/
m
w
w
n
OV\J
\
0,
m
E
500/’
FIG. 5B
DRIVER
510-» CONTROLLER
soof
1\1
/%
u, w
