Appeal No. 2000-0142 Page 15
Application No. 08/705,569
discloses that the value of R depends on the equation “T /(C1 1 1
+C ).” Col. 6, ll. 7-10. Because the equation for R does not2 1
include the value of M , the resistor is independent of the
1
transistor. Figure 5 of the reference, moreover, shows R and
1
M as separate elements. Because De La Plaza’s resistor R and1 1
transistor M are separate elements, and the value of R does1 1
not depend on the value of M , we are persuaded that the
1
applied prior art discloses the limitations of “the reference
resistor is independent of and is not a part of the current
amplifier.”
Second, the examiner asserts, regarding claim 19, “[i]n
column 6, lines 45-54, the De La Plaza reference indicates
that the time constant of the stabilized current generating
circuit of Figure 5 is given by R2C3.” The appellants argue,
“[b]ut col. 6, lines 46-48 of this reference clearly states
that the product R2,C3 is based on the assumption that ‘R1 is
much smaller than R2'. Therefore, since a particular
relationship between the resistors R1 and R2 must exist for
the product R2,C3 to be effective, clearly resistor R2 is not
independent of resistor R1.” (Reply Br. at 5.)
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