Appeal 2007-1576
Application 10/020,398
information in the first processor’s cache to display an image, and to retrieve the
second information from the local processor’s cache. Maddalozzo teaches a
system whereby a first processor checks to see if a requested file is in its local
cache. See step 112, figure 5A, and col. 9, ll. 15-21. If the file is in local cache,
the processor then establishes the timestamp and check sum for the file and queries
other processors in the network to determine if they have a newer version of the
file. See step 118 of figure 5A and col. 10, ll. 11-13. If the other processors do not
have a newer version of the file they provide information to the first processor
indicating that they do not have a newer file. See step 118 of figure 5A, and sub
step 128 of figure 5B, and col. 10, ll. 17-20, 55-58. We consider claimed first
information to be taught by Maddalozzo’s teaching of sending information from
the second processor that it does not have a newer version of the file. Maddalozzo
teaches that based upon receipt of this information, the first processor retrieves the
file (second information) from local cache. See step 135.
Appellant also argues on page 10 of the Brief:
[N]othing here [referring to Delaney and Maddalozzo] teaches what is
claimed which is received first information from the second processor-based
system. In other words, the one that would send it sends information to
avoid having to send the information.
Appellant makes a similar argument on page 2 of the Reply Brief.
We are not persuaded by these arguments. Initially, we note that
independent claim 1 does not recite that the second processor sends first
information so that it does not have to send second information as implied by
Appellant’s arguments. Nonetheless, as discussed supra, Maddalozzo teaches that
a second processor sends first information identifying if the file (second
information) in the first processor’s cache is current. If so identified, the skilled
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