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:
Oct. 30, 2012
Filed:
Dec. 03, 2010
Eric Soenen, Austin, TX (US);
Alan Roth, Leander, TX (US);
Martin Kinyua, Austin, TX (US);
Justin Shi, Austin, TX (US);
Justin Gaither, Austin, TX (US);
Eric Soenen, Austin, TX (US);
Alan Roth, Leander, TX (US);
Martin Kinyua, Austin, TX (US);
Justin Shi, Austin, TX (US);
Justin Gaither, Austin, TX (US);
Abstract
A noise shaper that compares an input signal to a feedback output signal, which is a truncated version of the input signal, and generates the difference between the two signals (i.e., the error). The noise shaper then integrates the errors by adding to the error multiple of its delayed versions, and quantizes the integrated errors in such a way that the spectrum of the quantization noise is shaped toward high frequencies to be removed by a LC low-pass filter used in conjunction with the noise shaper. The low frequency content of the desired signal is mostly unaffected.