Appeal No. 2003-0189
Application No. 09/627,892
prevent the high frequency power from affecting the telephone equipment. Only
one node needs to be connected to an external power source, the other nodes
receive power from the node connected to the system power, see appellant’s
specification page 5, lines 3-10.
Claim 10 is representative of the invention.
10. A computer network comprising:
a plurality of nodes;
telephone wires connecting said nodes into a computer
network;
a high frequency power supply connected to said telephone
wires;
a filter arranged to isolate the high frequency power supply
from the telephone service; and
only one of said nodes coupled to a power supply, said other
nodes receiving power over said telephone wires.
References
Hutchison et al. 5,084,870 Jan. 28, 1992
Rosen et al. 5,850,436 Dec. 15, 1998
Bell 5,930,340 Jul. 27, 1999
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