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. 25, 2014
Filed:
Feb. 29, 2012
Jinwen Xiao, Austin, TX (US);
Pavel Konecny, San Jose, CA (US);
Axel Thomsen, Austin, TX (US);
Ka Y. Leung, Austin, TX (US);
Jinwen Xiao, Austin, TX (US);
Pavel Konecny, San Jose, CA (US);
Axel Thomsen, Austin, TX (US);
Ka Y. Leung, Austin, TX (US);
Silicon Laboratories Inc., Austin, TX (US);
Abstract
An input digital signal is converted to an analog signal using a main digital to analog converter (DAC) and a sub DAC. An offset value is subtracted from the input digital signal to generate an offset adjusted digital signal. The main DAC converts the offset adjusted digital signal to a first analog signal. A second digital signal is generated based on the offset value and a correction factor determined, at least in part, during calibration of the main DAC. The sub DAC converts the second digital to a second analog signal, which when combined with the first analog signal, provides an analog representation of the input digital signal.