Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2005-03-15
2005-03-15
Nguyen, Long (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S543000
Reexamination Certificate
active
06867639
ABSTRACT:
A voltage generator for use in a semiconductor memory device provides a stabilized output voltage of half a supply voltage Vcc. The voltage generator includes a reference voltage generator capable of generating first and second reference voltages. A differential amplification drive circuit is capable of generating an output voltage responsive to the first and second reference voltages. A resistance/diode reference voltage generator is capable of generating third and fourth reference voltages. And a pull-up/down drive is capable of changing the output voltage responsive to the third and fourth reference voltages. The resulting voltage generator provides a stable and accurate output voltage that is resistant to output load variations.
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Marger & Johnson & McCollom, P.C.
Nguyen Long
Samsung Electronics Co,. Ltd.
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