Appeal 2007-0820
Application 09/734,808
1 the art at the time of the invention to substitute a PIN authentication with
2 bioauthentication to enable a user to access credit (FF 10, 20).
3 Further, Harada provides sufficient motivation for one skilled in the
4 art to use this bioauthentication information, such as a voice print or
5 fingerprint, in lieu of a PIN in order “to prevent unauthorized tampering with
6 [certain terminal setting] data by persons who may have access to the remote
7 control apparatus,” “to ensure that the type of service which is provided by a
8 terminal apparatus to the users of its remote control apparatuses is
9 selectively controlled in accordance with various different categories of
10 uses, e.g.[,] adults and children,” and “to reliably ensure that certain services
11 which should be available only to a specific individual user … and which
12 can be requested by operation of a remote control apparatus, will in fact be
13 made available only to the appropriate individual, when a number of
14 different individuals can use remote control apparatus to communicate with
15 that same terminal apparatus” (FF 10). The use of a PIN code is not as
16 reliable an identifier as bioauthentication information because the PIN can
17 be stolen and used without the authorized user’s knowledge (FF 11). On the
18 contrary, bioauthentication information, such as a fingerprint,
19 unambiguously and reliably ensures that a specific authorized user is
20 requesting the service (FF12). Further, use of a PIN code as an identifier is
21 not as desirable as bioauthentication information because the use of a PIN
22 requires the user to remember the PIN code (FF 13).
23 Thus, one of ordinary skill in the art would have been motivated to
24 combine the bioauthentication device of Harada with the system of Nakano
25 because Dethloff teaches that one can substitute bioauthentication
26 information for PIN information, and Harada teaches that it was a common
20
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