Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2005-11-10
2008-10-21
Tra, Quan (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
Reexamination Certificate
active
07439793
ABSTRACT:
A charge pump circuit may include a plurality of charge pump cells. Each charge pump cell may further include an output node for supplying charge, a pumping node for receiving a clock signal and a pumping capacitor, which may be connected between the output node and the pumping node, for storing the charge and may repeat a charge or discharge operation and/or a pre-charge operation in response to a plurality of clock signals. In the pre-charge operation, a unidirectional charge supply may be performed from a lower voltage output node to a higher voltage output node.
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German Office Action dated May 30, 2007 for counterpart German Patent Application No. 10 2005 062 526.6-34 is provided for the purposes of certification under 37 C.F.R. §§ 1.97(e) and 1.704(d).
“Charge Sharing Concept and New Clocking Scheme for Power Efficiency and Electromagnetic Emission Improvement of Boosted Charge Pumps,” by Christi Lauterbach et al. published in IEEE Journal of Solid-State Circuits, vol. 35, No. 5, May 2000.
Chinese Patent Office Action dated Jun. 13, 2008.
Harness Dickey & Pierce
Samsung Electronics Co,. Ltd.
Tra Quan
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