Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2011-07-19
2011-07-19
Zweizig, Jeffrey S (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
07982530
ABSTRACT:
The internal voltage generating apparatus includes a first charge pumping circuit, an external voltage level detector, and a second charge pumping circuit. The first charge pumping circuit outputs an internal voltage and selectively performs first charge pumping for the internal voltage depending on a result detecting a level of the internal voltage feed-backed. The external voltage level detector detects a level of an external voltage and outputs the result detecting the level of the internal voltage and outputs a result detecting the level of the external voltage as a detection signal. The second charge pumping circuit performs second charge pumping for the internal voltage together with the first charge pumping against a case in which the level of the external voltage is lower than a predetermined level by the detection signal of the external voltage level detector.
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Hynix / Semiconductor Inc.
Ladas & Parry LLP
Zweizig Jeffrey S
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