
US.
Patent
ii
Dec.
29,
2009
Sheet
2
0f
12
US
7,637,847
B1
FIG.
2
82
84
86
87
88
859
9%)
9%
C
ROM
RTC
MASS
D
I/O 0
o 0
I/O
“P
RAM
STORE
8
M
11 1?
ii
STANDBY
LOCAL
SYSTEM
D/A/C
F
I
G.
3
98
REMOTE
SYSTEM
104
8
PROCESS
PROCESS
PROCESS
EXERCISE
LOCAL
SYSTEM
REMOTE
ACTIVITY
ACTIVITY
ACTIVITY
(
102
I
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