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.

Date of Patent:
Dec. 01, 2015

Filed:

Oct. 11, 2012
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventor:

Baiying Yu, Santa Clara, CA (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/04 (2006.01); H03K 19/0185 (2006.01); G06F 1/00 (2006.01); G06F 1/06 (2006.01); G06F 1/26 (2006.01); G06F 1/32 (2006.01);
U.S. Cl.
CPC ...
H03K 19/0185 (2013.01); G06F 1/00 (2013.01); G06F 1/04 (2013.01); G06F 1/06 (2013.01); G06F 1/26 (2013.01); G06F 1/3203 (2013.01);
Abstract

The described apparatus and methods may include a first shifting stage configured to receive a signal having an upper power rail at a first voltage level and a lower power rail at a second voltage level, the first shifting stage configured to shift the upper power rail from the first voltage level to a third voltage level while maintaining the lower power rail at the second voltage level. The apparatus and methods may also include a second shifting stage coupled to the first shifting stage and configured to shift the lower power rail from the second voltage level to a fourth voltage level while maintaining the upper power rail at the third voltage level, the second shifting stage further configured to transmit the signal having the upper power rail at the third voltage level and the lower power rail at the fourth voltage level.


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