Telephonic communications – Subscriber line or transmission line interface – Hybrid circuit
Reexamination Certificate
2006-07-04
2006-07-04
Harold, Jefferey F. (Department: 2646)
Telephonic communications
Subscriber line or transmission line interface
Hybrid circuit
C379S398000, C379S093050
Reexamination Certificate
active
07072464
ABSTRACT:
A network communication device and hybrid circuit thereof. The hybrid circuit includes a first transformer, a second transformer and a protector electrically connected between the primary winding of the first transformer and the primary winding of the second transformer for protecting transmission function of internet and inhibiting interference of low-frequency signals generated during the communication process.
REFERENCES:
patent: 6792104 (2004-09-01), Schley-May
patent: 2003/0112963 (2003-06-01), Chen et al.
Birch & Stewart Kolasch & Birch, LLP
Delta Electronics , Inc.
Harold Jefferey F.
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