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:
Apr. 29, 2014
Filed:
Feb. 23, 2011
Wei Chen, San Diego, CA (US);
Yucong Tao, San Diego, CA (US);
Matthew L. Severson, San Diego, CA (US);
Jeffrey R. Gemar, San Diego, CA (US);
Chang Yong Yang, Fayetteville, NC (US);
Wei Chen, San Diego, CA (US);
Yucong Tao, San Diego, CA (US);
Matthew L. Severson, San Diego, CA (US);
Jeffrey R. Gemar, San Diego, CA (US);
Chang Yong Yang, Fayetteville, NC (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
In examples, apparatus and methods are provided for an integrated circuit. The integrated circuit includes a first integrated circuit portion having a main power domain and a second integrated circuit portion having a collapsible power domain. The integrated circuit also has a level shifter having an input coupled to the second circuit portion and an output coupled to the first integrated circuit portion. The level shifter is configured to hold constant the level shifter output when power to the collapsible power domain is collapsed. A quiescent drain current measurement circuit can be coupled to test at least a part of the second integrated circuit portion. A boundary scan register can be coupled between the level shifter output and the first integrated circuit portion. The integrated circuit can also include a power management circuit.