Appeal No. 2003-1482
Application No. 09/156,816
appellants argue, on pages 4 through 7 of the reply brief, that even if Kesatoshi
and Reddy are combined they do not teach the claimed invention. Appellants
argue on page 5 of the reply brief:
As set forth above with respect to claim 1, the Appellant’s [sic]
invention requires determining the active horizontal resolution and the
active vertical resolution of a display adapter in two different ways.
Specifically, claim 1 requires that the variable active horizontal resolution
is determined by counting a pixel clock.
Further, on page 6 of the reply brief, appellants state:
Reddy goes on to explain how standard video formats may be
inferred from the relative polarity of the HSYNC and VSYNC signals and
how resort must be made to determining the number of horizontal lines
per vertical frame or, alternatively, the number of pixels in a horizontal line
to further characterize which standard video format may be inferred from
the polarities of the HSYNC and VSYNC signals. Reddy, col. 8, lines 22-
67. Thus Reddy only counts pixels to narrow down and identify the range
of standard video formats indicated by the polarity of the HSYNC Signals.
The device disclosed in the Reddy reference does not
“determine[e] the variable active horizontal resolution of the display
controller by counting a pixel clock” as required by Appellant’s [sic] claim
1. Nor does Reddy disclose a device that “determine[es] the variable
active vertical resolution of the display controller by counting active
horizontal lines between vertical sync pulses,” which is also required by
claim 1. Certainly, the Reddy reference utterly fails to disclose a device
that does both of these things.
The examiner states, on page 7 of the answer, that Kesatoshi determines
the resolution by counting to determine the frequency and then uses a look up
table. The examiner argues, on page 7 of the answer, “ even though Kesatoshi
also determines frequency, claims 1 and 31 do not limit other steps used by
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