Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 22, 2010
Patent Application Number
12031051
Date Filed
February 14, 2008
Patent Primary Examiner
Patent abstract
A level shifter for shifting an input signal to an output signal. The level shifter includes an input buffer biased a first voltage and a ground voltage; an output buffer and a level-processing unit both biased between a second voltage and the ground voltage; and a voltage-drop unit coupled to the level-processing unit and biased between the first voltage and the second voltage. While the first voltage is in an OFF state and the second voltage is switched on, the voltage-drop unit provides an initializing voltage for the level-processing unit according to the second voltage to shift the input signal to provide the output signal.
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