Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2004-11-03
2009-06-09
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S538000, C331S057000
Reexamination Certificate
active
07545199
ABSTRACT:
Disclosed are a power supply circuit for an oscillator of a semiconductor memory device and a voltage pumping device using the same. In the power supply circuit, a voltage divider divides a voltage between an external power supply and ground. A driver is controlled by a signal of the voltage divided by the voltage divider. The driver supplies an internal power supply voltage. A capacitor is coupled between the driver and the ground. As the level of an external power supply voltage is increased, a relatively low voltage is supplied to the oscillator to increase a cycle length of an output pulse signal of the oscillator. Therefore, an excessive increase in the internal power supply voltage due to over-pumping can be avoided and noise occurrence and electric current consumption can be reduced.
REFERENCES:
patent: 4717840 (1988-01-01), Ouyang et al.
patent: 4839787 (1989-06-01), Kojima et al.
patent: 4847518 (1989-07-01), Leidich
patent: 5072197 (1991-12-01), Anderson
patent: 5180926 (1993-01-01), Skripek
patent: 5253205 (1993-10-01), Eaton, Jr.
patent: 5278460 (1994-01-01), Casper
patent: 5349244 (1994-09-01), Confalonieri
patent: 5376840 (1994-12-01), Nakayama
patent: 5751142 (1998-05-01), Dosho et al.
patent: 5754418 (1998-05-01), Park et al.
patent: 5809312 (1998-09-01), Ansel et al.
patent: 5859560 (1999-01-01), Matthews
patent: 5892390 (1999-04-01), Tobita
patent: 5989327 (1999-11-01), Ryu et al.
patent: 6133779 (2000-10-01), Sichert et al.
patent: 6188395 (2001-02-01), Yatabe
patent: 6265858 (2001-07-01), Park
patent: 6288963 (2001-09-01), Kato
patent: 6323721 (2001-11-01), Proebsting
patent: 6333873 (2001-12-01), Kumanoya et al.
patent: 6462625 (2002-10-01), Kim
patent: 6501467 (2002-12-01), Miyazaki
patent: 6518846 (2003-02-01), Ichihara
patent: 6650191 (2003-11-01), Branch et al.
patent: 6759857 (2004-07-01), Kong et al.
patent: 7015766 (2006-03-01), Guo et al.
patent: 7030707 (2006-04-01), Lee et al.
patent: 2001/0026187 (2001-10-01), Oku
patent: 2002/0167350 (2002-11-01), Sato et al.
patent: 2002/0190798 (2002-12-01), Kozaki
patent: 2003/0006832 (2003-01-01), Ikehashi et al.
patent: 2003/0052661 (2003-03-01), Tachimori
patent: 2003/0227321 (2003-12-01), Kim et al.
patent: 2004/0036526 (2004-02-01), Lee
Kim Yong Mi
Lee Kang Seol
Donovan Lincoln
Hiltunen Thomas J
Hynix / Semiconductor Inc.
Marshall & Gerstein & Borun LLP
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