Appeal No. 2001-2018
Application No. 08/668,114
phase shift network of Worsham with the simple phase shifting
network of the clock recovery circuit of Kimyacioglu which has
been modified by applying a single network equivalence theorem of
Thevenin. Moreover, the examiner has offered nothing, other than
the fact that it could be done, that would have led the artisan
to interchange the positions of the capacitor and the inductor in
Kimyacioglu’s phase shifter 52, in order to arrive at the claimed
subject matter.
Other than being in a parallel arrangement, the subject
matter of claim 13 is similar to that of claim 12. The other
claims all have similar recitations regarding the relationship
between the resistor and capacitor in the phase shifting network
of a quadrature demodulator. Therefore, our rationale, supra,
applies to these claims.
Accordingly, since the examiner has not provided a prima
facie case of obviousness, we will not sustain the rejection of
claims 2 and 8-13 under 35 U.S.C. 103.
-5–
Page: Previous 1 2 3 4 5 6 7 Next
Last modified: November 3, 2007