Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Unwanted signal suppression
Reexamination Certificate
2007-02-13
2007-02-13
Le, Dinh T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Unwanted signal suppression
C327S308000
Reexamination Certificate
active
10787819
ABSTRACT:
A control system for the characteristic parameters of an active filter includes: a system for the determination of the technological distribution of the components that provides the information related to said technological distribution of the components; an elaboration system for said information related to said technological distribution of the components; an active filter including at least two programmable passive circuital elements receiving said information related to said technological distribution of the components; said elaboration system, being aware of the topology for said active filter, comprises means for determining the value for said at least two programmable passive circuital elements; means for correcting the value for said at least two programmable passive circuital elements according to the value of the information related to said technological distribution of the components; means for determining the programming values for said at least two programmable passive circuital elements.
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J B Hughes et al: “Self-tuned RC-Active Filters for VLSI” Electronics Letters, vol. 22, No. 19, Sep. 11, 1986, pp. 993-994; XP001149985.
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Baschirotto Andrea
Colonna Vittorio
Gandolfi Gabriele
Liguori Pietro
Graybeal Jackson Haley LLP
Han J. Mark
Jorgenson Lisa K.
Le Dinh T.
STMicroelectronics S.r.l.
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