Appeal No. 1999-0409
Application 08/425,741
§ 1.192(a)].
We consider first the rejection of independent claims
1 and 2. The examiner finds that the admitted prior art
teaches all the features of these claims except for a method
for addressing a memory and for performing a bit block
transfer on each bit of the packed form of text character
while providing a color attribute. The examiner cites Guttag
as teaching a method comprising registers for storing
addressing information of memories, and the examiner finds
that it would have been obvious to the artisan to have
modified the admitted prior art with the teachings of Guttag
so that data could be written into or read out from a
predetermined position of memory. The examiner cites Morse as
teaching a bit block transfer [bitblt] on each bit of the
packed form of text data. The examiner finds that it would
have been obvious to modify the admitted prior art with the
teachings of Morse to increase the display efficiency of a
data processing system [answer, pages 3-4].
Appellants argue that the admitted prior art teaches
that a bit map is stored in off-screen memory 23 in sparse
monochrome form and not in packed form as contended by the
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