Appeal No. 2004-0608
Application No. 09/886,198
Appellants’ invention relates to a quadrature HF oscillator with isolating amplifier.
An understanding of the invention can be derived from a reading of exemplary claim 1,
which is reproduced below.
1. A quadrature HF ring oscillator (1) comprising at least two cascaded
filters (2, 3) each having a filter output (O1, O2) to be coupled to a load
(ZI, ZQ), characterised in that at least the two filters (2, 3) comprises an
isolating amplifier (T5-T8) coupled between the filter output (O1, 02) and
the load (ZI, ZQ).
The prior art of record relied upon by the examiner in rejecting the appealed
claims is as follows:
Cytera et al. (Cytera) 5,298,870 Mar. 29, 1994
Claims 1-7 stand rejected under 35 U.S.C. § 102 as being anticipated by Cytera.
Rather than reiterate the conflicting viewpoints advanced by the examiner and
appellants regarding the above-noted rejection, we make reference to the examiner's
answer (Paper No. 17, mailed August 8, 2003) for the examiner's reasoning in support
of the rejections, and to appellants’ brief (Paper No. 16, filed May 5, 2003) for
appellants’ arguments thereagainst.
OPINION
In reaching our decision in this appeal, we have given careful consideration to
appellants’ specification and claims, to the applied prior art reference, and to the
respective positions articulated by appellants and the examiner. As a consequence of
our review, we make the determinations which follow.
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