Appeal No. 1999-0597
Application 08/592,812
mechanism 20 of Faris. Appellants respond that the display
control mechanism 20 of Faris does not allow an observer to
view a three dimensional image in the stereoscopic mode and is
not a viewing aid as required by claim 22 [reply brief].
We agree with the position argued by the examiner.
Control mechanism 20 of Faris switches the display between the
autostereoscopic mode and the stereoscopic mode. Since the
switch determines what mode the device is in, the switch
operates to permit an observer to see the three dimensional
image in the stereoscopic mode [claim 19]. The switch also
cooperates with the display in the autostereoscopic mode
[claim 22] because it holds the display in that mode. Thus,
we agree with the examiner that the invention as broadly
recited in claim 22 is fully met by the disclosure of Faris.
Claims 23-26 are separately argued as a single group
by appellants [brief, page 4]. With respect to
representative, independent claim 23, appellants argue that
Faris does not teach or suggest use of a viewing aid in an
autostereoscopic mode of operation to reduce cross-talk
[brief, page 9]. As noted above, the examiner reads the
viewing aid on the control mechanism 20 of Faris. The
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