Appeal No. 96-1855
Application 07/953,807
halftone is assigned to an even or odd frame (input 132), note
column 19 lines 51-65. We therefor agree with the Examiner
that this claim limitation is met by Bassetti.
Appellants further argue that Bassetti does not
disclose or suggest "wherein the phase of changing-over the
first data and the second data is successively inverted at
each halftone pixel having the pertinent tone on the pertinent
line", claim 8, lines 27-29.
The Examiner responds that the phase placement
pattern of Bassetti is a type of inverting which assures a
different phase for pixels in each line and each frame (answer
at the bottom of page 11 et seq.).
Although Bassetti reduces flickering by providing
different phases via a phase placement pattern, we find that
this is not the same as successively inverting the phase for a
pertinent halftone on a pertinent line as claimed. Inverting
a phase is not only a change in phase (as disclosed in
Bassetti), but a specific 180º phase change. And although the
simpler embodiments of Bassetti may be interpreted to include
180º (e.g. Figures 3B and 4E), we find no teaching for
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