Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate
2006-09-08
2008-10-07
Pascal, Robert J. (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Having branched circuits
C333S012000, C333S02400C, C333S177000
Reexamination Certificate
active
07432782
ABSTRACT:
A signal splitter includes a low-pass filter circuit for permitting a low-frequency component of an incoming signal in an incoming telephone line coupled to a first connecting port to pass therethrough to a second connecting port, and a coupling circuit including a capacitor coupled between a first terminal of the first connecting port and a second terminal of the second connecting port, and a coupling transformer having a primary winding that interconnects the first terminal of the first connecting port and a first input end of the low-pass filter circuit, and a secondary winding that interconnects the second terminal of the second connecting port and a second output end of the low-pass filter circuit.
REFERENCES:
patent: 5109206 (1992-04-01), Carlile
patent: 6407987 (2002-06-01), Abraham
patent: 6897764 (2005-05-01), Cern
patent: 7039360 (2006-05-01), Sugiura
Chen Yung-Sheng
Liu Wen-Chung
Gallagher & Lathrop
Glenn Kimberly E
Lathrop, Esq. David N.
Pascal Robert J.
YCL Electronics Co., Ltd.
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