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:
Sep. 28, 2021
Filed:
Jul. 12, 2018
Xilinx, Inc., San Jose, CA (US);
Ephrem C. Wu, San Mateo, CA (US);
Xiaoqian Zhang, San Jose, CA (US);
XILINX, INC., San Jose, CA (US);
Abstract
The embodiments herein store tabulated values representing a linear or non-linear function in separate memory banks to reduce the size of memory used to store the tabulated values while being able to provide upper and lower values for performing linear interpolation in parallel (e.g., the same cycle). To do so, a linear interpolation system includes a first memory bank that stores the even indexed tabulated values while a second memory bank stores the odd indexed tabulated values. During each clock cycle, the first and second memory banks can output upper and lower values for linear interpolation (although which memory bank outputs the upper value and which outputs the lower value can vary). Using the upper and lower values, the linear interpolation system performs linear interpolation to approximate the value of a non-linear function that is between the upper and lower values.