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:
Nov. 01, 2016
Filed:
Jan. 13, 2015
Altera Corporation, San Jose, CA (US);
Dan Pritsker, San Diego, CA (US);
Colman C. Cheung, San Diego, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
Circuitry for interpolating a value based on a first plurality of samples from within a larger second plurality of samples includes storage for the second plurality of samples, including a plurality of sample memories corresponding in number to the first plurality of samples. Adjacent samples in the sample memories correspond to samples in the second plurality of samples that are separated by other samples numbering one less than that number. A first sample address into a first one of the sample memories is derived by dividing a floor of an index by the number. Respective circuitry for each respective other one of the sample memories derives a respective other sample address from the first sample address based on a remainder of dividing the floor of the index by the number. Shifting circuitry outputs selected samples in a second order under control of a value determined by the remainder.