Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Nonlinear amplifying circuit
Reexamination Certificate
2005-03-29
2005-03-29
Wells, Kenneth B. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Nonlinear amplifying circuit
C327S561000, C327S563000, C330S253000, C330S259000, C330S260000
Reexamination Certificate
active
06873206
ABSTRACT:
A fully integrated charge amplifier with DC stabilization includes a first amplifier having an input terminal and an output terminal, a first capacitor coupled between the input terminal and the output terminal of the first amplifier, a transimpedance amplifier having an input terminal coupled to the output terminal of the first amplifier and an output terminal, and an impedance device coupled between the input terminal of the first amplifier and the output terminal of the second amplifier. The impedance device has a resistance of at least 1 MΩ.
REFERENCES:
patent: 4257006 (1981-03-01), Schaumann
patent: 5138279 (1992-08-01), Kondo et al.
patent: 5708376 (1998-01-01), Ikeda
patent: 5952885 (1999-09-01), Wu et al.
Bousquet Robert A.
Haley Harold Ralph
Hildebrant Eric M.
Martinez Shida Iep
Ward Paul A.
Charles Stark Draper Laboratory, Inc.
McDermott Will & Emery LLP
Wells Kenneth B.
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