Appeal No. 2005-1817 Page 16
Application No. 09/834,499
Appellant asserts (brief, page 15) that no motivation is provided
because Takagi already includes means for providing a
predetermined authorized access code via a wired connection. It
is argued (id.) that the key ID of Takagi is rewritable and can
be changed if the key is stolen, and that it would be redundant
to modify the combination of Iijima and Takagi. We agree.
However, because the program rewriting tool 14 of Takagi is hard
wired, as noted by appellant, we find that an artisan would have
been motivated to make the program rewriting tool 14 of Takagi
operate using RF in view of the disclosure of Bethards (col. 4,
lines 35-38 and col. 3, lines 17-21), as Bethards discloses using
RF communications for programming the subscriber unit with an
identification code. Takagi further discloses that electronic
control apparatuses are used to prevent intrusion into
automobiles and prevent burglary of the vehicle. Program
rewriting tools may be used to rewrite the anti-burglary function
by erasing the key ID check program, making it likely that
vehicles will be stolen.
The invention of Bethards provides a program rewriting
control for preventing unauthorized intrusion and burglary (col.
1, lines 17-19, 31-38 and 42-45). From these disclosures of
Takagi and Bethards, an artisan would have been taught to make
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