Wave transmission lines and networks – Coupling networks – Electromechanical filter
Reexamination Certificate
2007-06-27
2010-11-02
Pascal, Robert (Department: 2817)
Wave transmission lines and networks
Coupling networks
Electromechanical filter
C333S167000, C333S172000
Reexamination Certificate
active
07825750
ABSTRACT:
Disclosed relates to an electromagnetic interference (EMI) filter. Capacitance and resistance or inductance of an EMI filter, which includes a resistor and a capacitor or an inductor and a capacitor, can be controlled, such that a cutoff frequency can be freely controlled without manufacturing a separate EMI filter according to a characteristic of a desired cutoff frequency. Further, an intelligent EMI filter that can be applied to a surge protection device, which includes an ESD protection function as well as the EMI filter, is provided, such that a process can be simplified and costs can be reduced.
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patent: 6084486 (2000-07-01), Suzuki et al.
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patent: 1020020042998 (2002-06-01), None
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Kim Jin Hyung
Kim Yoo Ran
Lee Kye Nam
Park Young Jin
Yang Hyun Kyu
Glenn Kimberly E
Horizon IP Pte Ltd
Pascal Robert
Petari Incorporation
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