Appeal No. 2003-1632
Application 09/173,991
The discussion at column 13 associated with figure 3C
relates to the operational use of the in-vehicle unit. In the
middle of this figure the logic flow diagram indicates that a
determination is made relative to the PIN or personal
identification number, clearly analogous to a password. At least
with respect to block element 412b, the message is communicated
to the user that the wrong PIN number has been entered. It is
clear to the reader from the overall operational sense of this
reference that a PIN must be utilized by the user of the IVU in
the claimed broad “association” required by claim 40 on appeal.
This feature may also alternatively comprise the claimed pass-
word in addition to the private key associated with the RSA
cryptography system mentioned earlier.
As to the notification feature of acceptability of the
password at the end of representative claim 40 on appeal, the
logic flow at the bottom of figure 3C indicates the attempt to
notify the user of a proper or an improper entry of a PIN number
or password (that is, whether it is acceptable in the sense of
claim 40 or unacceptable in the sense of claim 70).
From our study of this reference, it is clear that
according to the teachings at the bottom of column 12 of Chaum,
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