Appeal No. 1999-2019
Application No. 08/646,810
document 13 is placed. A line sensor 1 is supported by a carriage unit 4, which is moved
by motor section 8. The line sensor is driven to scan the original document between
leading edge P2 and trailing edge P3. Position detector circuit 9, in concert with rotary
encoder 8c in motor section 8, supplies information regarding the displacement of line
sensor 1 with respect to a reference position P0.
As shown in the flowchart of Figure 6 and described at column 11, lines 34 through
40, the line sensor 1 is moved to position P1 before scanning commences. Also, as
appellants acknowledge, Kojima discloses performing image exposure while the object
(document 13) and the image pickup device (line sensor 1) are in relative motion, as
illustrated by Kojima’s Figure 8.
We, unlike appellants, consider Kojima’s description of “initial calibration” to be
relevant, in view of the broad recitations of instant claim 10. The claim sets forth a
discriminator which discriminates “whether a relative movement” is executed between the
object and the image pickup device, which is fairly descriptive of the “initial calibration” and
position detection described by Kojima. Claim 10 also sets forth a controller which
controls writing and/or reading devices such that writing and/or reading of the image signal
is performed “during a relative movement.” Kojima discloses that writing and/or reading
occurs with respect to buffer memory 7 (Fig.1) during the “relative movement” related to the
actual scanning; see, for example, column 18, lines 47-54. Claim 10 ends with the clause
“wherein the image pickup device is exposed after a relative movement is completed.”
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