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:
Feb. 04, 2014
Filed:
Jan. 03, 2013
Avnera Corporation, Beaverton, OR (US);
Jianping Wen, Beaverton, OR (US);
Amit Kumar, Portland, OR (US);
Garry N. Link, Pacific City, OR (US);
Wai Laing Lee, Austin, TX (US);
Avnera Corporation, Beaverton, OR (US);
Abstract
A system and method dynamically selects digital-to-analog (DAC) circuit elements to provide a True differential-output delta-sigma (ΔΣ) DAC. The sign and magnitude of a received N-bit input code is determined. If the input code comprises a positive value, m+r circuit elements are selected from a plurality of circuit elements by a positive element selector, in which comprises a number of rotational elements, and r circuit elements are selected by a negative element selector. Each selected circuit element comprises a circuit element that was not selected for an immediately preceding received input code and has a corresponding minimum usage count value. If the input digital code comprises a negative value, m+r circuit elements are selected by the negative element selector, and r circuit elements are selected by the positive element selector. The circuit elements are capable of being configured as positive or negative circuit elements.