Appeal No. 1997-1174
Application 08/353,681
recognizable 'heart' of the invention." Para-Ordnance Mfg. v.
SGS Importers Int’l, Inc., 73 F.3d 1085, 1087, 37 USPQ2d 1237,
1239 (Fed. Cir. 1995) (citing W. L. Gore & Assocs., Inc. v.
Garlock, Inc., 721 F.2d 1540, 1548, 220 USPQ 303, 309 (Fed.
Cir. 1983), cert. denied,
469 U.S. 851 (1984)).
The Examiner has cited Christner for adaptively
controlling the biasing current applied to MR heads.
According to the Examiner, Christner lessens the difference in
the absolute magnitude of the positive and negative peaks, but
does not set the peaks to a defined “absolute” magnitude. The
Examiner then combines Christner with Fennema, to obtain
positive and negative peaks of the same absolute amplitude, to
increase system precision. However, since this combination
lacks baseline correction, Cardero is added to the combination
for baseline correction, to decrease sensitivity to baseline
shifts. (Final rejection, Paper No. 10, pages 3 and 4.)
Appellants argue that Christner adjusts bias current to
the head to thereby minimize, but not eliminate asymmetry, and
Christner does not correct for baseline shift (brief-page 6).
5
Page: Previous 1 2 3 4 5 6 7 8 9 10 Next
Last modified: November 3, 2007