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:
Dec. 27, 2005
Filed:
Mar. 18, 2003
Shi-dong Zhou, Milpitas, CA (US);
Gubo Huang, Milpitas, CA (US);
Shankar Lakkapragada, San Jose, CA (US);
Andy T. Nguyen, San Jose, CA (US);
Fariba Farahanchi, Los Gatos, CA (US);
Shi-dong Zhou, Milpitas, CA (US);
Gubo Huang, Milpitas, CA (US);
Shankar Lakkapragada, San Jose, CA (US);
Andy T. Nguyen, San Jose, CA (US);
Fariba Farahanchi, Los Gatos, CA (US);
Xilinx, Inc., San Jose, CA (US);
Abstract
A technique and circuit implementation are described for automatically detecting a change in a power supply voltage and selectively reconfiguring a circuit for optimized performance at the changed voltage. One application of particular interest is an auto-detect level shifter. The auto-detect level shifter can be used in an output driver and can be automatically enabled if it is needed to optimize performance for various I/O standards, including those that operate at different voltages.