Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Amplitude control
Reexamination Certificate
2007-02-06
2007-02-06
Callahan, Timothy P. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Amplitude control
C326S058000, C326S068000, C326S081000
Reexamination Certificate
active
11041464
ABSTRACT:
A level shifting circuit includes a level-shifting section responsive to an input logic signal, which varies between a first voltage level (e.g., ground) and a second voltage level (e.g., 2.1V). The level-shifting section provides an output logic signal at an output terminal. The output logic signal varies between the first voltage level and a third voltage level (e.g., 2.5V). The circuit also includes an enable/disable section with a first portion coupled between the level shifting section and a first reference voltage node (e.g., ground) and a second portion coupled between the level shifting section and the third reference voltage node. The enable/disable section causes the output terminal to be placed at a relatively high output impedance condition independent of the logic state of the input logic signal in response to a disable mode indication from an enable/disable signal.
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Frankowsky Gerd
Terletzki Hartmud
Callahan Timothy P.
Hernandez William
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