Appeal No. 2000-1362
Application 08/914,165
information about messages in their "mailbox" (col. 3,
lines 45-47). It is important that a user get his and only his
messages. The integrity of stored message security is vulnerable
if the VM system should fail in the process of updating pointers
on the disk which identify a particular user's message, in which
case another user B's directory may point to a message that in
reality belongs to user A (col. 1, lines 22-34, 60-65). Olson
discloses encryption for a particular message for a designated
user where the encoding key is stored in the designated user's
message directory (col. 1, lines 47-57; figure 3A; col. 4,
lines 15-35). When the user enters a mailbox number and password
number, the VM system attaches the key to the channel and the
encrypted message is retrieved from disk and played through the
channel using the key (figure 3B; col. 4, lines 36-45). If any
disk errors occur or the system retrieves an incorrect message,
the encrypted message will not be decrypted by the other mailbox
and there will no be any playing of unauthorized voice messages
to a non-designated user (col. 4, lines 46-51).
Claims 82, 86, and 87 stand rejected under 35 U.S.C.
§ 103(a) as being unpatentable over Bieselin and Olson.
We refer to the first Office action (Paper No. 4), the final
rejection (Paper No. 8) (pages referred to as "FR__") and the
examiner's answer (Paper No. 16) for a statement of the
examiner's rejection, and to the brief (Paper No. 15) (pages
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