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. 09, 2013
Filed:
Jul. 21, 2011
Applicants:
Arlo J. Aude, Atlanta, GA (US);
Steven E. Finn, Atlanta, GA (US);
Inventors:
Arlo J. Aude, Atlanta, GA (US);
Steven E. Finn, Atlanta, GA (US);
Assignee:
National Semiconductor Corporation, Santa Clara, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/80 (2006.01);
U.S. Cl.
CPC ...
Abstract
Circuitry and method for digital-to-analog current signal conversion with phase interpolation. For an n-bit digital-to-analog converter (DAC), the number 2control bits normally required can be reduced to 2by jointly controlling pairs of the current sources with one of the 2current control bits and inverses of two other ones of the 2current control bits.