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:
Mar. 20, 2012
Filed:
Jul. 29, 2008
Vijay Shankar, San Diego, CA (US);
Abheek Gupta, San Francisco, CA (US);
Vaishnav Srinivas, San Diego, CA (US);
Vivek Mohan, San Diego, CA (US);
Vijay Shankar, San Diego, CA (US);
Abheek Gupta, San Francisco, CA (US);
Vaishnav Srinivas, San Diego, CA (US);
Vivek Mohan, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A signal driver for an interface circuit has a first stage level shifter to accept input signals and output signals at a first signal level. The signal driver also has a second stage level shifter coupled to the first stage level shifter to output signals at a second signal level. Electronic components of the first and second stage level shifter have reliability limits less than the second signal level. The first and second stage configurations of the first stage level shifter and the second stage level shifter prevents exposing the electronic components to terminal to terminal signal levels higher than the reliability limits when processing signals for output at the second signal level.