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. 23, 2001
Filed:
Dec. 15, 1998
Alan N. Willson, Jr., Pasadena, CA (US);
Larry S. Wasserman, Granada Hills, CA (US);
Pentomics, Inc., Pasadena, CA (US);
Abstract
A method, apparatus, article of manufacture, and a memory structure for low power digital filtering. The method comprises the steps of successively delaying each of the input values {x,,x,, . . . ,x,} to create tap values {t,,t,, . . . ,t,}, multiplying each of the tap values {t,,t,, . . . ,t,} by A•{h,,h,, . . . ,h,} to produce {At,h,,At,h,, . . . ,At,h,}wherein values {h,,h,, . . . ,h,} are weight values selected to achieve a desired filter response and A is a factor selected to improve computational efficiency in filtering the input data stream, summing the values {At,h,,At,h,, . . . ,At,h,} to produce