The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 2013
Filed:
Apr. 20, 2011
Chen-hao Po, Taipei County, TW;
Yen-tai Lin, Hsinchu, TW;
Way-chen Wu, Taipei, TW;
Ching-shan Chien, Hsinchu County, TW;
Chen-Hao Po, Taipei County, TW;
Yen-Tai Lin, Hsinchu, TW;
Way-Chen Wu, Taipei, TW;
Ching-Shan Chien, Hsinchu County, TW;
eMemory Technology Inc., Hsinchu, TW;
Abstract
A voltage level shifting apparatus is disclosed. The voltage level shifting apparatus has a cross-coupled transistor pair, a plurality of transistor pairs, a first diode string, a second diode string and an input transistor pair. One of the transistor pairs is coupled to the cross-coupled transistor pair, and the transistor pairs are controlled by a plurality of reference voltages. The first and the second diode strings are coupled between two of the transistor pairs. Each of the first and the second diode strings has at least one diode. The input transistor pair receives a first and a second input voltage, and the first and second input voltages are complementary signals. The cross-coupled transistor pair generates and outputs a first output voltage and a second output voltage by shifting the voltage level of the first and the second input voltage.