Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2005-02-01
2005-02-01
Zweizig, Jeffrey (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
06850110
ABSTRACT:
A voltage generating circuit and method thereof for preventing a current from flowing from a voltage generating node to a pumping node in transiting of the circuit from an active operation to a pre-charge operation are provided. The voltage generating circuit comprises a pre-charge circuit for pre-charging a pumping node and a voltage transmitting control node during a pre-charge operation; a voltage pumping circuit for pumping a signal at the pumping node during an active operation; a voltage transmitting circuit for transmitting the signal from the pumping node to a voltage generating node in response to a signal at the voltage transmitting control node during the active operation; and a countercurrent preventing circuit for varying the signal at the voltage transmitting control node based on the signal at the pumping node during the pre-charge operation and for preventing a current from flowing between the pumping node and the voltage transmitting control node during the active operation.
REFERENCES:
patent: 6078212 (2000-06-01), Lakhani
patent: 6285241 (2001-09-01), Yoshida
patent: 6480057 (2002-11-01), Ogura
patent: 20020084832 (2002-07-01), Jin
F.Chau & Associates, LLP
Zweizig Jeffrey
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