Appeal No. 95-4815
Application No. 08/065,387
graphics controller generates pixels on a display, based on
these evenly spaced addresses, the pixels will automatically
occupy a vertical
column on the display. Thus, the invention permits CPU
addressing of data in rows (consecutively) and subsequent
writing to video RAM in columns (non-consecutively) with an
intermediate graphics controller performing the translation
from consecutive to non-consecutive addresses, which saves CPU
processing time.
Representative independent claim 1 is reproduced as
follows:
1. A method of copying data to video RAM in a computer,
comprising the following steps:
(a) ordering a processor to copy a consecutive data
field to consecutive addresses in video RAM; and
(b) receiving the consecutive data field from the
processor, and distributing it to non-consecutive
addresses in video RAM.
The examiner relies on the following references:
Maruko 4,613,852 Sep. 23, 1986
Diepstraten et al. 5,231,383 Jul. 27, 1993
(Diepstraten) (filed Mar. 25, 1991)
Claims 1 through 9 stand rejected under 35 U.S.C. ' 103.
As evidence of obviousness, the examiner cites Diepstraten
with regard to claims 1 through 3, 8 and 9, adding Maruko with
regard to claims 4 through 7.
2
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