Inductor devices – Coil or coil turn supports or spacers – Printed circuit-type coil
Reexamination Certificate
2006-02-28
2006-02-28
Nguyen, Tuyen T (Department: 2832)
Inductor devices
Coil or coil turn supports or spacers
Printed circuit-type coil
C333S025000
Reexamination Certificate
active
07005956
ABSTRACT:
A balance-to-unbalance transformer (10), comprising an input terminal (11), a first output terminal (12), a second output terminal (13), a first circuit line comprising at least two capacitors (C1, C2) in parallel with each other and a first inductor L1in series with the capacitors (C1, C2), wherein one electrode of each of the capacitors (C1, C2) are grounded, and a second circuit line comprising at least two capacitors (C3, C4) in series with each other and a second inductor (L2) in parallel with the capacitors (C3, C4), wherein one end of the second inductor (L2) is grounded. One end of the first circuit line and one end of the second circuit line are connected in parallel with the input terminal (11), and the other ends of the first and second circuit lines are the first and second output terminal, respectively.
REFERENCES:
patent: 5886589 (1999-03-01), Mourant
patent: 5949299 (1999-09-01), Harada
patent: 6501341 (2002-12-01), Mashimo
patent: 6809581 (2004-10-01), Rofougaran et al.
patent: 6873224 (2005-03-01), Chominski
patent: 2005/0037800 (2005-02-01), Shih
patent: 2005/0040910 (2005-02-01), Rijks
David Pai Chao-Chang
Delta Electronics , Inc.
Nguyen Tuyen T
Pai Patent & Trademark Law Firm
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