Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system
Reexamination Certificate
2011-03-29
2011-03-29
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
C323S315000, C330S288000
Reexamination Certificate
active
07915948
ABSTRACT:
A differential amplifier circuit receives a pair of input signals to develop an output signal. First and second MOS transistors have commonly-connected gates and sources. A third MOS transistor has a drain connected to the commonly-connected gates, and a source connected to the first MOS transistor's drain. The third MOS transistor's gate is connected to a constant voltage source. A constant current source is connected to the third MOS transistor's drain. A first terminal, connected to the first MOS transistor's drain and to the third MOS transistor's source, provides an input current. A second terminal, connected to the first and second MOS transistors' commonly-connected sources, provides a common reference. A third terminal, connected to the second MOS transistor's drain, provides an output current.
REFERENCES:
patent: 4618815 (1986-10-01), Swanson
patent: 5359296 (1994-10-01), Brooks et al.
patent: 5699010 (1997-12-01), Hatanaka
patent: 5764086 (1998-06-01), Nagamatsu et al.
patent: 5835994 (1998-11-01), Adams
patent: 5966005 (1999-10-01), Fujimori
patent: 6172535 (2001-01-01), Hopkins
patent: 6252435 (2001-06-01), Wu et al.
patent: 6396335 (2002-05-01), Behzad et al.
patent: 6429735 (2002-08-01), Kuo et al.
patent: 6531915 (2003-03-01), Behzad et al.
patent: 6535031 (2003-03-01), Nguyen et al.
patent: 6617915 (2003-09-01), Rajan
patent: 6777984 (2004-08-01), Hangaishi
patent: 6803808 (2004-10-01), Wu
patent: 6844781 (2005-01-01), Walsh et al.
patent: 7012415 (2006-03-01), Moraveji
patent: 7113020 (2006-09-01), Schoenbauer
patent: 7248115 (2007-07-01), Nishimura
patent: 2004/0189386 (2004-09-01), Nishimura
patent: 2004/0247036 (2004-12-01), Hedberg et al.
patent: 62-281510 (1987-12-01), None
patent: 3-62712 (1991-03-01), None
patent: 6-125260 (1994-05-01), None
patent: 7-283665 (1995-10-01), None
patent: 2003-101358 (2003-04-01), None
patent: 2004-297462 (2004-10-01), None
Japanese Office Action dated Mar. 17, 2010 with partial English translation thereof.
Donovan Lincoln
Hernandez William
McGinn IP Law Group PLLC
Renesas Electronics Corporation
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