Amplifiers – With semiconductor amplifying device – Including differential amplifier
Reexamination Certificate
2007-04-24
2007-04-24
Nguyen, Patricia (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including differential amplifier
C330S258000, C330S261000
Reexamination Certificate
active
11161506
ABSTRACT:
A differential amplifier circuit with feedback to increase common mode loop gain at low frequencies.
REFERENCES:
patent: 4272728 (1981-06-01), Wittlinger
patent: 5475323 (1995-12-01), Harris et al.
patent: 5847607 (1998-12-01), Lewicki et al.
patent: 6525613 (2003-02-01), Cyrusian
patent: 7091783 (2006-08-01), Bailey et al.
National Semiconductor Corporation
Vedder Price Kaufman & Kammholz P.C.
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