Appeal 2006-2328
Application 10/131,049
problem solved by the H-omission countermeasure circuit of horizontal
synchronous signals missing during the vertical synchronizing signal of a
composite signal. The solution to the problem of missing synchronizing
signals is taught by Yamagishi.
The Examiner's reasoning that it would have been an obvious matter of
design choice to replace missing synchronous signals in Arai using the
technique in Yamagishi in place of the "countdown" method in Arai is not
necessary to or relied upon in this decision because claim 58 does not recite
any specific method of generating replacement synchronous signals.
For the reasons stated above, we conclude that Yamagishi would have
motivated one of ordinary skill in the art to modify the microcomputer in Arai
to perform the claimed function of "generating reference vertical and
horizontal synchronous signals when no input is received from said vertical
synchronous signal terminal, said horizontal/composite synchronous signal
terminal and said synchronous-on-green terminal of said computer." Thus,
the combination of Arai and Yamagishi establishes a prima facie case of
obviousness as to claim 26. Since claims 1, 21, 27, and 35 are grouped to
stand or fall together with claim 26, the rejection of claims 1, 21, 26, 27,
and 35 is sustained.
- 35 -
Page: Previous 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 Next
Last modified: September 9, 2013