Appeal No. 2003-2106
Application No. 09/604,662
1. An apparatus comprising:
a first optical waveguide producing a first optical output;
a first electrode substantially parallel to the first
waveguide;
a second optical waveguide producing a second optical output;
a second electrode substantially parallel to the second
waveguide; and
a photo detector in the path of an interference pattern
produced by the first and second optical outputs.
20. A method of measuring an input signal, comprising:
producing an interference pattern based on the input signal;
detecting a location of a null of the interference pattern;
and producing an output signal based on the location of the null.
The references relied on by the examiner are:
Geary 4,747,688 May 31, 1988
Leuchs et al. (Leuchs) 5,172,185 Dec. 15, 1992
Claims 20 and 24 stand rejected under 35 U.S.C. § 102(b) as
being anticipated by Geary.
Claims 1 through 6, 13, 14, 16, 17 and 21 through 23 stand
rejected under 35 U.S.C. § 103(a) as being unpatentable over
appellants’ admitted prior art Figure 1 in view of Leuchs.
Claims 7 through 12, 15, 18 and 19 stand rejected under 35
U.S.C. § 103(a) as being unpatentable over appellants’ admitted
prior art Figure 1 in view of Leuchs and Geary.
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