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. 15, 2005
Filed:
Oct. 25, 1999
Jesus L. Finol, Gilbert, AZ (US);
Mark J. Chambers, Gilbert, AZ (US);
Albert H. Higashi, Lawrenceville, GA (US);
James B. Phillips, North Richland Hills, TX (US);
Jesus L. Finol, Gilbert, AZ (US);
Mark J. Chambers, Gilbert, AZ (US);
Albert H. Higashi, Lawrenceville, GA (US);
James B. Phillips, North Richland Hills, TX (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A Finite Impulse Response (FIR) filter circuit () includes delay elements (), multipliers (), a summing device (), and a digital integrator () at the output of the FIR filter circuit (). A method for processing data using the FIR filter circuit () includes differentially encoding data prior to storing or processing of the data. The method provides a technique for compressing data since less memory is needed to store derivative data. The method further includes integrating the derivative data using the digital integrator () to decompress the derivative data.