Appeal No. 1997-2246
Application 08/353,572
system. Independent claim 2 is reproduced below:
2. A message transmission system comprising in
combination:
first and second transmitters located at different
physical locations, said first transmitter operating
at a first frequency and said second transmitter
operating at a second frequency which is different
than said first frequency, each of said transmitters
transmitting the same messages at different times,
a plurality of radio receivers, said receivers being
frequency agile,
means for setting a receiver to said first frequency
and for switching to the frequency of said second
transmitter if a message is not received from said
first transmitter,
whereby said transmission system has time, space and
frequency diversity.
Discussion
The position of the examiner regarding the finding of
anticipation is articulated on page 3 of the answer as
follows:
With respect to the rejection, Schwendeman et al
teaches (figures 1, 3, and 7) a radio paging system
(figure 3; column 6 line 31 - column 8 line 5) using
a time slot protocol (figures 1 and 7) including
first and second transmitters (308, 310) located at
different physical locations thereby providing
spacial diversity, operating at different
frequencies (note each transmitter is operating on a
different channel) thereby providing frequency
diversity, and transmitting the same information
conforming to the time slot protocol (figure 1)
3
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: November 3, 2007