Appeal No. 2001-0656
Application No. 08/976,645
and a secondary station is extended. A handset is informed of an
extension and the handset switches off its transmitter, at which
time extension messages are transmitted to all handsets.
Representative independent claim 1 is reproduced as follows:
1. A telecommunications system comprising at least one
primary radio station and a plurality of secondary radio
stations, wherein at least one secondary radio station is matched
to a primary radio station, each station has a transmitter and a
receiver, characterised in that the primary station is arranged
for setting up a point to point full duplex communication link to
a matched secondary station or vice versa, and that the primary
station is arranged for issuing a extension request to the
matched secondary station and to further matched secondary
stations after the setting up of the point to point communication
link, and the secondary station to which the communication link
has been set up switches off its transmitter, and the matched
secondary station and the further matched secondary stations have
their receivers ready for receiving a broadcast message from the
primary station.
The examiner relies on the following references:
Yamashita et al. (Yamashita) 5,644,621 Jul. 01, 1997
(filed Jan. 10, 1995)
Kapanen 5,835,889 Nov. 10, 1998
(filed Jun. 28, 1996)
Claims 1-7 stand rejected under 35 U.S.C. 103. As evidence
of obviousness, the examiner cites Yamashita with regard to
claims 3 and 4, adding Kapanen with regard to claims 1, 2, 6 and
7.
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