Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver
Reexamination Certificate
2006-03-02
2009-08-25
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Current driver
C326S083000
Reexamination Certificate
active
07579882
ABSTRACT:
A novel output buffer circuit including an input circuit, a voltage generating circuit, and an output circuit forms a three-state buffer circuit. The output circuit includes a first transistor, a second transistor, a third transistor, and a fourth transistor. With such a configuration, a simple circuit using no high voltage insulated transistors and level shift circuits can be made, and the simple circuit can output either a low voltage signal or a high voltage signal responsive to a low voltage input signal, reduce the manufacturing cost and the delay of the risetime of the output signal, which are associated with a high voltage insulated transistor. Furthermore, cost can be reduced by miniaturization of the circuit size.
REFERENCES:
patent: 5216516 (1993-06-01), Tanaka et al.
patent: 5268853 (1993-12-01), Tanaka et al.
patent: 5331585 (1994-07-01), Tanaka et al.
patent: 5337168 (1994-08-01), Fujii et al.
patent: 5349610 (1994-09-01), Sakamoto et al.
patent: 5359549 (1994-10-01), Tanaka et al.
patent: 5630174 (1997-05-01), Stone et al.
patent: 5761624 (1998-06-01), Mooney et al.
patent: 5808480 (1998-09-01), Morris
patent: 5892371 (1999-04-01), Maley
patent: 5917358 (1999-06-01), Sanchez et al.
patent: 5926056 (1999-07-01), Morris et al.
patent: 5995010 (1999-11-01), Blake et al.
patent: 6040729 (2000-03-01), Sanchez et al.
patent: 6064227 (2000-05-01), Saito
patent: 6066962 (2000-05-01), Shiffer et al.
patent: 6081132 (2000-06-01), Isbara
patent: 6141200 (2000-10-01), Hinedi et al.
patent: 6211707 (2001-04-01), Choi
patent: 6268744 (2001-07-01), Drapkin et al.
patent: 6301305 (2001-10-01), Ohuchi et al.
patent: 6326811 (2001-12-01), Coddington et al.
patent: 6407579 (2002-06-01), Goswick
patent: 6480029 (2002-11-01), Morgan et al.
patent: 6518818 (2003-02-01), Hynes
patent: 6870407 (2005-03-01), Lundberg
patent: 7183817 (2007-02-01), Sanchez et al.
patent: 7304511 (2007-12-01), Kawano
patent: 2002/0113634 (2002-08-01), Spurlin
patent: 2002/0199026 (2002-12-01), Tsunashima et al.
patent: 11-41082 (1999-02-01), None
Nakayama Yasunori
Sakamoto Kazuo
Cooper & Dunham LLP
Donovan Lincoln
Hiltunen Thomas J
Ricoh & Company, Ltd.
LandOfFree
Output buffer circuit eliminating high voltage insulated... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Output buffer circuit eliminating high voltage insulated..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Output buffer circuit eliminating high voltage insulated... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4087651