Appeal No. 97-0178
Application 08/355,326
rejection at page 4.) The Examiner’s statements of the motivation and the lines of
reasoning for the combination and/or the modification of the Fisun reference is quite
extensive. Taking the rejection and responses to the arguments as a whole, we agree with
the Examiner that it would have been obvious to one of ordinary skill in the art at the time of
the invention in view of the teachings of Diekemper to use the well known infra-red
spectrum of light rather than the ultraviolet spectrum of light to encode a second bar code
for security purposes.
CLAIM 1
The Examiner has directed our attention to the Diekemper reference to teach the
well known use of infra-red encoding and detection in the hotel door lock environment.
Here, both well known ultraviolet and infra-red light are used. The key cards are
reencoded using ultraviolet light, but the doors use infra-red detectors to detect the codes
on the card. Diekemper is advanced by the Examiner as a teaching of the well
known use of either ultraviolet or infrared spectrum of light. We agree. The Examiner
relies upon a laminate layer which is transparent to infra-red light, but opaque to visible
light as a teaching of providing a security covering. (See Diekemper at col. 1-2; answer at
page 6.) Diekemper discloses that the infra-red receivers and emitters are necessary
when using the infra-red spectrum. (See Diekemper at col. 3-4.)
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