Appeal No. 2001-0656
Application No. 08/976,645
With regard to claims 3 and 4, the examiner relies on
Yamashita, alone, to reject the claims under 35 U.S.C. 103.
Appellants argue that Yamashita does not disclose or suggest
that the secondary station to which the full duplex communication
has been set up is arranged for transmitting a transfer message
to the primary station for transferring the link to another
matched secondary station.
The examiner relies on Yamashita’s “chief sub-unit”
teaching. Specifically, the examiner points to Figure 20 of
Yamashita to show a point to multipoint radiotelephone system
including a main unit 1 (primary radio station) and plural sub-
units 303, 304 and 350 (secondary radio stations). It is said
that any of the sub-units may also be called a chief sub-unit.
Therefore, when the chief sub-unit transmits a changeover request
signal to the main unit (steps S406 and S409 in Figures 29-31)
for transferring the communication link to another sub-unit, this
is a teaching of arranging a secondary station for transmitting a
transfer message to the primary station for transferring the link
to another matched secondary station.
However, our review of Yamashita comports with appellants’
version of Yamashita’s teaching. That is, claim 3 requires that
the secondary station must transmit a transfer message (claim 4
-7–
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