Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2007-08-28
2007-08-28
Lam, Tuan T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S087000, C327S543000
Reexamination Certificate
active
11275463
ABSTRACT:
A voltage level detection circuit is disclosed. The voltage level detection circuit comprises a pull-up unit including a plurality of pull-up devices, each for supplying an internal voltage in response to a signal resulting from a logic operation of a voltage up control signal and a voltage down control signal, a voltage division unit including a plurality of voltage dividers, each for dividing the internal voltage from a corresponding one of the pull-up device, a switching unit including a plurality of switching devices, each for switching and supplying an output voltage from a corresponding one of the voltage dividers to an output node in response to a signal resulting from a logic operation of the voltage up control signal and voltage down control signal, and a comparator for comparing the voltage at the output node with a predetermined reference voltage and outputting a voltage pumping enable signal according to a result of the comparison.
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Gou Ja Seung
Park Sang Il
Hernandez William
Hynix / Semiconductor Inc.
Lam Tuan T.
Marshall & Gerstein & Borun LLP
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