1Application for patent filed June 07, 1995. According to
the appellant, this application is a continuation o
08/405,396, filed March 15, 1995, w07/991,050, filed December
15, 1992.
This is a decision on appeal from the final rejection of
claims 4 through 7, 9, 17 and 18. Claim 10 is indicated as
being allowable if placed in independent form. Claims 1
through 3, 11 and 13 through 16 were canceled in paper no. 13
when replacement claims 17 and 18 were entered. Paper no. 13
also made claims 8 and 12 allowable if placed in independent
form.
Appellant's invention relates to a helical computerized
tomography (CT) system which is typically used for medical
diagnostic purposes. In a CT system, a patient is supported
on a table within a rotatable, ring-like X-ray unit (referred
to as a gantry) which has an X-ray source and X-ray detectors
on diametrically opposite sides of the patient. The X-ray
unit and the patient are rotated relative to each other in an
X-Y reference plane and are moved relative to each other along
a longitudinal Z-axis, transverse to the X-Y plane. The X-ray
detectors generate data indicating variations in the amount of
X-ray radiation received by the detectors along the helical
path. A computer uses programmed mathematical procedures to
process the resultant helical path data and generate image
2
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