Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Unwanted signal suppression
Reexamination Certificate
2007-11-28
2010-10-05
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Unwanted signal suppression
C333S168000, C333S174000, C333S175000, C333S177000
Reexamination Certificate
active
07808310
ABSTRACT:
One embodiment of the invention relates to a dynamically adjustable differential band-pass filter. This band-pass filter includes a first leg that has an input portion and an output portion with a first inductor therebetween. It also includes a second leg in parallel with the first leg, where the second leg has an input portion and an output portion with a second inductor therebetween. The first inductor is symmetrically inter-woven with the second inductor. In some embodiments, the band pass filter is configured to compensate for losses due to the inductors. Other band-pass filters and methods are also disclosed.
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“Filter Design Using Transformed Variables”, H.J. Orchard and Gabor C. Temes, IEEE Transactions on Circuit Theory, vol. CT-15, No. 4, Dec. 1968, pp. 385-408.
Broussev Svetozar
Järvenhaara Jani
Järvi Joni
Persson Lars
Uzunov Ivan
Donovan Lincoln
Eschweiler & Associates LLC
Infineon - Technologies AG
Poos John W
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