Appeal No. 96-1472
Application No. 08/287,070
2, lines 17 through 20). One light beam is produced by
semireflecting mirror 4, mirror 5 and mirror 7. The other
light beam is produced by semireflecting mirror 4 and mirror
6. When the light beams fall on pointer 2, the light beams
are reflected back through mirrors 6 and 7 where they impinge
light receivers 14 and 15, respectively (column 3, lines 1
through 8). A computer uses the outputs from the light
receivers to determine the Cartesian coordinates (X and Y) of
the pointer (column 3, lines 11 through 15.
The examiner acknowledges that Cooreman "does not
explicitly disclose a shutter," but "suggests (col. 3, lines
52-55) that any means for scanning can be used in his device"
(Answer, page 3). The examiner is of the opinion (Answer,
page 3) that:
At the time that the invention was made, Okisu
et al had shown that a shutter (col. 9, lines 4-12)
can be used as a scanner. One of ordinary skill in
the art having Okisu et al would have been motivated
to eliminate moving parts in Cooreman by using the
shutter teaching in Okisu et al.
Appellants argue (Brief, pages 4 and 5) that:
There is no way to combine the inventions [in the
references] either individually or taken
collectively to produce the present invention as
claimed. First, the Cooreman device does not teach
4
Page: Previous 1 2 3 4 5 6 7 8 9 Next
Last modified: November 3, 2007