Appeal No. 95-4154
Application 08/122,193
predetermined discrete output impedances of the circuit by
controlling the value of the impedance selection input.
Representative claim 30 is reproduced below:
30. In an integrated circuit, a circuit having an output
terminal, comprising:
a plurality of output buffers, each output buffer having a
predetermined buffer output impedance, an input coupled to a
buffer information input terminal of the circuit, and an output
coupled to the output terminal of the circuit, each output buffer
being electrically coupled between the information input terminal
and the output terminal in response to a control signal having a
value which is controlled and may be varied only during a
predetermined mode of operation of the integrated circuit by a
user of the circuit in response to an impedance selection input
being asserted at an input pin of the integrated circuit, the
user being able to select predetermined discrete, output
impedances of the circuit by controlling the value of the
impedance selection input.
Claims 30 and 43 require that the control signal be varied
or modified only during a predetermined mode of operation of the
integrated circuit.
Claim 38 requires that the user is able only during reset of
the integrated circuit to select predetermined discrete, output
impedances of the circuit.
Claim 43 further requires that the control signal be stored.
Opinion
Anticipation is established only when a single prior art
reference discloses, either expressly or under the principles of
inherency, each and every element of the claimed invention. In
3
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