Appeal 2006-2328
Application 10/131,049
that performs the functions of outputting "control data for indicating a display
size" (col. 9, line 18) and "control data for indicating a display position"
(col. 9, lines 27-28); the circuit 206 corresponds to the claimed "synchronous
signal processor." The synchronizing signal processing circuit 201 in
Figure 2 of Arai performs the functions of detecting the peculiar forms of the
synchronizing signals (HS, VS; C. Sync; or Sync on G), separating them into
horizontal and vertical synchronizing signals, and unifying the polarities
(col. 8, lines 59-68). As shown in Arai's Figures 2, 3, 4A, and 5, these
functions are performed by specialized circuitry, which is not controlled in
any way by the microcomputer 206. While a microcomputer can have
circuitry in addition to the microprocessor that executes stored program
instructions, if the circuitry is not controlled by the microcomputer (as it is in
Appellant's Figure 6) it is not reasonable to say that the microcomputer
performs the functions. Thus, we agree with Appellant that the Examiner's
interpretation of DAT 2 in Figure 2 as a microcomputer is unreasonable.
Nevertheless, although not noted by the Examiner or by Appellant,
Figure 9 of Arai discloses a second embodiment of DAT 2 where the
microcomputer 206 performs the function of "detecting at least one
synchronous signal output from said computer to said display monitor."
"In FIG. 9, the function of the synchronizing signal processing circuit 201 of
the DAT 2 shown in FIG. 2 is executed by software of the control processing
circuit 206. FIG. 10 is a flow chart showing the processing flow of the
control processing circuit 206." (Col. 14, ll. 32-36.) Element 206 is a
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