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:
Dec. 31, 2013
Filed:
Mar. 12, 2013
Dana Massie, Santa Cruz, CA (US);
David P. Rossum, Santa Cruz, CA (US);
Brian Clark, San Jose, CA (US);
Leonardo Rub, Sunnyvale, CA (US);
Jean Laroche, Santa Cruz, CA (US);
Dana Massie, Santa Cruz, CA (US);
David P. Rossum, Santa Cruz, CA (US);
Brian Clark, San Jose, CA (US);
Leonardo Rub, Sunnyvale, CA (US);
Jean Laroche, Santa Cruz, CA (US);
Audience, Inc., Mountain View, CA (US);
Abstract
Digital methods and systems for signal processing and filtering are provided. The methods and corresponding systems provide asynchronous conversion of sampling rate frequencies and utilize advanced multistage phasor filters for converting an input signal having a first sampling rate into an output signal sampled in an arbitrary sequence of sampling times. The conversion process provides a sequence of sets of complex numbers representing a filtered version of the input signal. More specifically, the conversion process includes the calculation of values of the output signal by multiplying (e.g., scaling) the sets of complex numbers by a corresponding set of complex phasors, the complex phasors corresponding to the timing of the arbitrary time sequence to obtain a corresponding set of real results with the value of the output signal being the sum of the real results.