Appeal No. 1999-2306
Application 08/639,284
Lane describes his own technique for fast play in which normal
and trickplay segments of data are geometrically arranged on a
videotape. The examiner refers to the prior art technique for
meeting the extracting and assembling I-frames steps of the
claimed invention but refers to Lane’s technique for teaching
the decoding and encoding of this assembled bitstream. In our
view, these disparate teachings of Lane cannot be combined as
proposed by the examiner to find anticipation.
With respect to the prior art technique disclosed by
Lane, we agree with the examiner that this disclosure would
have suggested to the artisan that a trickplay bitstream could
be obtained by extracting I-frames from a normal play
bitstream and assembling these I-frames in sequence. We also
agree with the examiner that the disclosure in Lane would have
suggested to the artisan that the extracted I-frames are
stored. The person familiar with this art would have
understood that bitstream frames in the prior art could be
stored before they are processed. Lane’s disclosure that the
D-frames of MPEG compression are stored separately from the
normal MPEG bitstream is sufficient to anticipate the storage
of such frames as argued by the examiner. Lane, however,
7
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Next
Last modified: November 3, 2007