Appeal No. 1998-2466 Page 7
Application No. 08/508,747
assert (id.) that in Haber, the "accuracy of the time stamp is
not discussed nor is it checked by any means or technique."
Appellants point out (brief, page 15) that by providing an
accurate time-stamp and continually verifying its accuracy, it
is not necessary to provide a chain of time stamps as in
Haber.
We find that Haber (col. 4, lines line 6-11) the time-
stamp receipt includes the "current time." Haber (col. 4,
lines 11-33) proves the veracity of the time-stamp of document
D by comparing the time-stamp of D with the time-stamp ofk k
previous document D and subsequent document D ; i.e., ask-1 k+1
long as the time-stamp of D is between the times of documents
k
D and D , Haber considers the time-stamp of D to bek-1 k+1 k
correct. However, Haber does not verify the time indicated by
the clock in order to determine if the clock reflects accurate
time. From the disclosure of Haber, we find that the phrase
"current time" refers to the time indicted by the system
clock, which may or may not reflect accurate time. Thus, we
do not agree with the examiner's assertion (answer, page 3)
that Haber discloses "checking the time accuracy of said first
machine to verify the accuracy of the time-stamp."
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