Appeal No. 2002-2304
Application No. 09/419,157 Page 9
present alone. If the waves are electromagnetic, the
displacement means the magnitude of the electric or magnetic
field. Constructive interference occurs whenever the path
difference for two identical sources is an integer multiple of
the wavelength (pages 774 and 775). As shown in figure 41-1,
when waves from two sources arrive at a point a half cycle out of
phase and the amplitudes are equal, this condition is called
destructive interference. The discussion on coherency (page 776)
teaches that if light from a single source is split, forming two
or more secondary sources, any random change in phase, affects
the secondary sources equally and does not change their relative
phase. Two such sources derived from a single source and having
a definite phase relation are said to be coherent.
From our review of the evidence provided by the examiner, we
agree with the examiner that the connectors of Zhu will
inherently cause some electromagnetic energy to be created when
transmitting signals between the mother board and the memory
modules or circuit cards. We additionally agree with the
examiner to the extent that there will inherently be some (i.e.,
negligible) attenuation of electromagnetic waveforms generated.
However, it is at this point that we part company with the
examiner. We agree with appellants (reply brief, page 2) that if
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: November 3, 2007