Level shifting

Details Level shifting Level shifting

2007-06-21

2010-06-15

Le, Dinh T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

C326S063000, C326S081000

Reexamination Certificate

active

07737755

ABSTRACT:
Various aspects are described, such as a method for operating a level shifter, in which the level shifter is coupled to a first supply voltage and a second supply voltage different from the first supply voltage. The method may include detecting whether the first supply voltage is present, and decoupling an input of the level shifter from an output of the level shifter responsive to detecting that the first supply voltage is not present.

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Otsuka, et al., “Circuit Techniques for 1.5-V Power Supply Flash Memory”, IEEE Journal of Solid-State Circuits, vol. 32, No. 8, Aug. 1997, pp. 1217-1229.
Figure for Information Disclosure Statement, of system used commercially prior to filing date of present application.

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