Appeal No. 2001-0603
Application 09/028,063
We note that Appellant’s claim 2 recites “[a] method of
determining the direction of arrival of a traveling spectrally
spread signal wavefront of measurable center-frequency
wavelength, comprising the steps of: . . . taking the output of a
single element and shifting it in frequency by an amount fifHz
and inverting its instantaneous envelope waveform . . .
determining said direction of arrival from detected amplitudes of
said product components.” Similarly we note that Appellant’s
claim 13 is “an apparatus for determining the direction of
arrival of a traveling spectrally spread signal wavefront of
measurable center-frequency wavelength, comprising means for
taking the output of a single element and shifting it in
frequency by an amount fifHz and inverting its instantaneous
envelope waveform resulting in an auxiliary modulation-wipeoff
signal . . . means for determining said direction of arrival from
detected amplitudes of said product components.” Thus
Appellant’s claims 2, 4, 13, 15, 19 and 20 recite a method or
apparatus for determining direction of arrival of a traveling
spectrally spread signal wavefront of measurable center-frequency
wavelength, wherein an output of a single element in and array of
signal-sensing elements is shifted in frequency, and is
instantaneous envelope waveform is inverted.
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