Appeal No. 1998-1114 Application 08/353,254 relied on in the rejection, and shall explain how such limitations render the claimed subject matter unobvious over the prior art."). Cf. In re Baxter Travenol Labs., 952 F.2d 388, 391, 21 USPQ2d 1281, 1285 (Fed. Cir. 1991) ("It is not the function of this court to examine the claims in greater detail than argued by an appellant, looking for nonobvious distinctions over the prior art."). The Examiner states (EA7-8): [S]ome of the above identified differences are at least partially taught by elements of the prior art. To wit: With respect to difference (1), Yaezawa teaches the use of a comparator circuit (Fig. 1, element 6) connected to a key memory (Fig. 1, element 2) and an input register (Fig. 1, element 4), while Wong teaches the use of an R-S flip-flop (Fig. 4, element 52). Additionally, with respect to difference (2), Wong discloses the use of a tri-state buffer (Wong at abstract and Fig. 4, element 62). . . . Finally, with respect to differences (3) and (4), it is the Examiner's position that one of ordinary skill in the art would have found these differences to have been obvious at the time the invention was made. A proper analysis of these differences, therefore, begins with an inquiry into who one of ordinary skill in the art would be[.] - 6 -Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 NextLast modified: November 3, 2007