Appeal No. 2001-0603
Application 09/028,063
detection of spectrally spread signals. See page 3 of the
Examiner’s answer. The Examiner further states that it would
have been obvious to one of ordinary skill in the art to provide
the detection of spectrally spread signals as taught in Baghdady
for use in direction finding equipment such as disclosed in Green
by the suggestions in Baghdady of the application to detection of
spectrally spread signals in a direction finding system. See
page 4 of the Examiner’s answer.
Appellant points out that independent claims 2 and 13 are
directed to a method and apparatus for determining the direction
of arrival of a traveling spectrally spread signal wavefront of
measurable center-frequency wavelength, wherein an output of a
signal element in an array of signal-sensing elements is shifted
in frequency, and its instantaneous envelope wavelength is
inverted. Appellant points out such features reflect the use of
an inverting envelope waveform means, as defined on specification
page 13, for transforming the combined envelope and exponent
(phase or frequency) modulated signal. Appellant further points
out the use of a frequency shifted, inverted envelope single
element output permits the direction of arrival of a spectrum
signal wavefront to be determined, even though the direction of
4
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 Next
Last modified: November 3, 2007