Appeal No. 1999-1640
Application 08/782,464
Representative claim 1 is reproduced below:
1. An H-bridge circuit comprising:
a load having a first and a second port;
first and second switches coupled to said first and said second port to switch the
load;
first and second cascode switching elements coupled between said load and said
first and said second switches;
wherein said first and second cascode switching elements each comprising at least
one cascode transistor having a base port resistively coupled to a first bias voltage and a
collector port clamped with respect to said base port.
The following references are relied upon by the examiner:
Brannon et al. (Brannon) 5,345,346 Sep. 6, 1994
Appellants’ admitted prior art in disclosed Figures 1 and 2
Claims 1 through 3, 5, 7 through 16, and 18 through 29 stand rejected under 35
U.S.C. § 103. As evidence of obviousness, the examiner relies upon appellants’ admitted
prior art Figures 1 and 2 in view of Brannon.
Rather than repeat the positions of the appellants and the examiner, reference is
made to the briefs and the answer for the respective details thereof.
2
Page: Previous 1 2 3 4 5 6 7 Next
Last modified: November 3, 2007