Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Reexamination Certificate
2005-12-06
2005-12-06
Nguyen, Linh My (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
C327S558000
Reexamination Certificate
active
06972604
ABSTRACT:
The present invention provides for a low pass filter. A first capacitor, has a first associated leakage current. A second capacitor has a specified capacitance that is a fraction of the capacitance of the first capacitor, the second capacitor further having a second associated leakage current. A voltage follower circuit is coupled to the output of the first and second capacitor. First and second current sources are coupled to the voltage follower circuit. A bias current source is coupled the first current source. A current mirror is coupled to the second current source, and the current mirror is further coupled to at least the anode of the first capacitor, thereby generating replacement current of a capacitor within a low-pass filter.
REFERENCES:
patent: 4229699 (1980-10-01), Frissell
patent: 4250411 (1981-02-01), Kriedt
patent: 4970405 (1990-11-01), Hagiwara
patent: 5099141 (1992-03-01), Utsunomiya
patent: 5113862 (1992-05-01), Mortazavi
patent: 5122677 (1992-06-01), Sato
patent: 5155380 (1992-10-01), Hwang et al.
patent: 5231636 (1993-07-01), Rasmussen
patent: 5315181 (1994-05-01), Schowe
patent: 5357146 (1994-10-01), Heimann
patent: 5449999 (1995-09-01), Edwards
patent: 5489888 (1996-02-01), Jagiella et al.
patent: 5729179 (1998-03-01), Sumi
patent: 5754067 (1998-05-01), Komatsu et al.
patent: 5787135 (1998-07-01), Clark
patent: 6157694 (2000-12-01), Larsson
patent: 6265930 (2001-07-01), Walker et al.
patent: 6285263 (2001-09-01), Anderson
patent: 6346851 (2002-02-01), Zhang et al.
patent: 6388506 (2002-05-01), Voo
patent: 6396305 (2002-05-01), Carlson
patent: 6466096 (2002-10-01), DeVito
patent: 6501304 (2002-12-01), Boerstler et al.
Schroder, Deiter K.; “Semiconductor Material and Device Characterization”; John Wiley & Sons, Inc., 1998, p. 391-394.
Boerstler David William
Hailu Eskinder
Carr LLP
Gerhardt Diana R.
Nguyen Linh My
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