Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Unwanted signal suppression
Reexamination Certificate
2004-11-17
2008-12-02
Le, Dinh T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Unwanted signal suppression
C327S558000, C327S157000, C327S148000, C327S156000
Reexamination Certificate
active
07459964
ABSTRACT:
A loop filter (30) includes a first capacitor (31) provided between an input terminal for a current signal and a reference voltage, a switched capacitor circuit (32) provided between the input terminal and the first capacitor (31) and a second capacitor (33) provided in parallel to the first capacitor (31) and the switched capacitor circuit (32). In the switched capacitor circuit (32), when a third capacitor (321) is connected to the first capacitor (31), a fourth capacitor (322) is connected to the second capacitor (33). In the loop filter (30) having the above-described configuration, a capacitance value of the second capacitor (33) is set to be larger than respective capacitance values of the third and fourth capacitors (321and322).
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Chinese Office Action issued in Patent Application No. 2004800425701 dated on Aug. 1, 2008.
Dosho Shiro
Tokunaga Yusuke
Le Dinh T.
McDermott Will & Emery LLP
Panasonic Corporation
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