Appeal No. 1998-2710
Application 08/582,045
capacitor coupled to the second node and the ground;
(C) a first circuit having a first end coupled to the
first node and a second end coupled to the second node, the
first circuit detecting a phase difference between a first
signal and a second signal, wherein the first circuit causes a
first error current;
(D) a second circuit having the same circuit
configuration as the first circuit but having a first end
coupled to the second node and a second end coupled to the
first node, wherein the second circuit causes a second error
current that cancels the first error current due to cross-
connection of the second circuit with respect to the first
circuit, wherein each of the first and second circuits
receives the first and second signals, wherein the first and
second circuits are controlled by the second signal to
function with respect to the first and second signals at the
same time such that the second error current cancels the first
error current in order for the first circuit to detect the
phase difference between the first and second signals with
minimized detection error.
The Examiner relies on the following references:
Hynecek 4,814,648 Mar. 21, 1989
Lee 5,422,529 Jun. 6,
1995 (filed Dec. 10,
1993)
Funada et al. (Funada) 59-191906 Oct. 31, 1984
Claims 1, 3-6, 9-10, 12-15, and 25 stand rejected under
35 U.S.C. § 103 over Funada and Lee, while claims 8, 11, and
18-19 stand rejected under 35 U.S.C. § 103 over Funada, Lee
and Hynecek.
-3-
Page: Previous 1 2 3 4 5 6 7 8 9 10 Next
Last modified: November 3, 2007