Appeal No. 95-3019
Application No. 08/124,954
1. A trusted computing system, comprising:
a computing apparatus including a keyboard port, and
responsive to keyboard signals applied to said keyboard port;
a keyboard including a plurality of keys and an output port,
for generating, at said output port of said keyboard, keyboard
signals representing keystrokes;
a card reader electrically and mechanically coupled to said
output port of said keyboard and to said keyboard port of said
computing apparatus, said card reader being for electrically
coupling a removeable access control card to said keyboard output
port and to said keyboard port of said computing apparatus; and
a plurality of removable access cards, each of which is
physically arranged to be mechanically and electrically coupled
to said card reader, each of said access cards including memory
means preloaded with personal identification information, and
comparison means coupled to said memory means, for, when inserted
into said card reader, assuming first and second modes of
operation, and for, in said first mode of operation, comparing
said keyboard signals with said personal identification
information, and for, when said comparison matches said keyboard
signals with said personal identification information, switching
to said second mode of operation, and for, in said second mode of
operation, coupling said keyboard signals to said keyboard port
of said computing apparatus.
The reference relied on by the examiner is:
McClung et al. (McClung) 4,951,249 Aug. 21, 1990
Claims 1 and 3 stand rejected under 35 U.S.C. § 102(b) as
being anticipated by McClung.
Claim 2 stands rejected under 35 U.S.C. § 103 as being
unpatentable over McClung.
Reference is made to the brief and the answer for the
respective positions of the appellant and the examiner.
2
Page: Previous 1 2 3 4 5 6 7 Next
Last modified: November 3, 2007