Appeal No. 1998-1105 Page 7
Application No. 08/300,599
Also similarly, claim 7 specifies in pertinent part the
following limitations:
a) a transmitter sends a control message at a first
transmission rate, requesting acknowledgment of
said control message;
b) if no acknowledgment is received, said
transmitter
sends a new correction message ... at a new
transmission rate ....
Further similarly, claims 13 and 14 each specifies in
pertinent part the following limitations:
(a) initially transmitting a message over the mains
power lines at a first bit rate, without
synchronization to the power line frequency; and
(b) if no acknowledgment is received after said
step (a), then retransmitting at least part of
the message, at a second bit rate which is lower
than said first bit rate ....
Similarly, claims 15 and 16 each specifies in pertinent part
the following limitations:
(a) initially transmitting a message over the mains
power lines at a first carrier frequency and at
a first bit rate, without synchronization to the
power line frequency; and
(b) if no acknowledgment is received after said
step (a), then retransmitting at least part of
the message, at a second carrier frequency which
is different from said first carrier frequency
and at a second bit rate which is lower than
said first bit rate ....
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