U.S.
Patent
Nov.
4,
2003
Sheet
4
0f
14
US
6,642,852
B2
4-20
430
440
450
$$$$
Device
RF
Unit
#
Con?gured?
Power
status
TV
0
Yes
0N
VCR
3
Yes
ON
%
CBL
None
Yes
Unknown
410
4
AUX
4
Yes
OFF
2
SAT
None
No
Unknown
\
CD
1
Yes
Unknown
AMP
2
Yes
0N
TUN
None
No
Unknown
EXAMPLE
DEVICE
\400
STATUS
TABLE
FIG.
4
