Appeal No. 1998-3362
Application No. 08/516,773
The claimed invention relates to a method and system for
preprocessing multiple bit per pixel sampled data in which
data stored in a frame buffer is transposed from a pixel based
format to a bit plane based format before compression.
Appellant asserts at page 4 of the specification that, by
regrouping the sampled video data from pixel referenced bits
and strings to bit plane bits and strings, the compressibility
of the data is improved. This improvement in data
compressibility resulting from the regrouping of data is
further asserted by Appellant to stem from the segregation of
the more significant bits from the least significant bits,
thereby efficiently utilizing the bit significance represented
by the frame buffer bit planes.
Claim 1 is illustrative of the invention and reads as
follows:
1. A system suited to the compression of video data,
comprising:
a frame buffer means with multiple bit planes for storing
digital format video data composed of multiple data bits per
pixel;
means for serially reading the video data from a selected
bit plane of the frame buffer means;
2
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