Appeal No. 2002-1527 Page 3
Application No. 08/885,817
mask identifying a group of senders . . . authorized or prohibited from sending to a user
joining a multicast." (Id. at 32.)
A further understanding of the invention can be achieved by reading the following
claim.
1. A routing element for multicast digital communications, comprising:
a. at least one input port;
b. at least one output port; and
c. a processor for controlling packet routing from an input port to an
output port, said processor configured to obtain a public key and to
decode at least a portion of a multicast join request comprising encrypted
information submitted by a user using said public key to verify that said
user is authorized to join a multicast.
Claims 1, 4, 5, 7, 8, 14, 17-19, 22-24, 26, 28, and 32 stand rejected under 35
U.S.C. § 102(e) as anticipated by U.S. Patent No. 5,668,877 ("Aziz"). Claims 2, 3, 11-
13, 15, 16, 25, 27, 29, and 33-35 stand rejected under 35 U.S.C. § 103(a) as obvious
over Aziz. Claims 6, 10, 21, 30, and 31 stand rejected under § 103(a) as obvious over
Aziz and U.S. Patent No. 5,237,565 ("Henrion"). Claims 9, 20, 27, 29, 33, and 35 stand
rejected under § 103(a) as obvious over Aziz and U.S. Patent No. 5,754,938 ("Herz").1
1The examiner explains that "claims [21 and 30] were erroneously included in the
list of claims in the heading of the 35 USC 103 rejection combining Aziz and Herz."
(Supp. Examiner's Answer at 22.) Because claim 31 depends from claim 30, we
conclude that inclusion of the dependent claim in the examiner's statement of the
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