Appeal No. 2001-0565
Application No. 08/855,246
streaming a first base layer and a first at least one
enhancement layer of said data to said first multicast group,
said first at least one enhancement layer additive to said first
base layer; and
streaming a second base layer and a second at least one
enhancement layer of said data to said second multicast group,
said second at least one enhancement layer additive to said
second base layer.
The references relied on by the examiner are:
Chaddha et al. (Chaddha) 5,621,660 Apr. 15, 1997
Tomoda et al. (Tomoda) 5,832,229 Nov. 3, 1998
(filed July 26, 1996)
Claims 1 through 28 and 30 through 44 stand rejected under
35 U.S.C. § 103(a) as being unpatentable over Tomoda in view of
Chaddha.
Reference is made to the final rejection (paper number 9),
the briefs (paper numbers 14 and 16) and the answer (paper number
15) for the respective positions of the appellant and the
examiner.
OPINION
We have carefully considered the entire record before us,
and we will reverse the obviousness rejection of claims 1 through
28 and 30 through 44.
Tomoda discloses a multicast communication system in which a
user at a terminal 101 joins or leaves a multicast group (Figure
1; column 1, lines 11 through 15). The regions 204 through 206
2
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