Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Amplitude control
Reexamination Certificate
2006-03-14
2006-03-14
Callahan, Timothy P. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Amplitude control
C327S546000
Reexamination Certificate
active
07012456
ABSTRACT:
A circuit for discharging a high voltage signal to a supply voltage line. In one embodiment, the circuit includes a first switch receiving the high voltage signal; a second switch having an input coupled with the output of the first switch; and a third switch having an input coupled with the output of the second switch and having an output coupled with the supply voltage line. In this embodiment, the high voltage signal discharges to the supply voltage line when the first, second, and third switches are on. The circuit may include a fourth switch for clamping the high voltage signal to ground. The fourth switch may have a control coupled with the output of the first switch along a discharge path such that when the high voltage signal is discharging and approaches a voltage level of approximately ground, the fourth switch automatically turns on and clamps the high voltage signal to ground level. In this manner, after the high voltage signal has discharged, the fourth switch clamps the high voltage signal to a ground potential so that circuit elements coupled with the high voltage signal may operate.
REFERENCES:
patent: 4156940 (1979-05-01), Hollingsworth et al.
patent: 4794278 (1988-12-01), Vajdic
patent: 4978905 (1990-12-01), Hoff et al.
patent: 5157282 (1992-10-01), Ong et al.
patent: 5367489 (1994-11-01), Park et al.
patent: 5420798 (1995-05-01), Lin et al.
patent: 5502405 (1996-03-01), Williams
patent: 5506816 (1996-04-01), Hirose et al.
patent: 5530640 (1996-06-01), Hara et al.
patent: 5600267 (1997-02-01), Wong et al.
patent: 5745354 (1998-04-01), Raza
patent: 5872464 (1999-02-01), Gradinariu
patent: 5952868 (1999-09-01), Gowni et al.
patent: 5956219 (1999-09-01), Maloney
patent: 5973545 (1999-10-01), Raza
patent: 6011421 (2000-01-01), Jung
patent: 6404229 (2002-06-01), Barnes
patent: 6477090 (2002-11-01), Yamaki et al.
patent: 6590420 (2003-07-01), Mnich et al.
patent: 6590442 (2003-07-01), Byeon et al.
Hirose Ryan T.
Srinivasaraghavan Vijay
Callahan Timothy P.
Cypress Semiconductor Corporation
Dorsey & Whitney LLP
Englund Terry L.
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