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:
May. 19, 2020
Filed:
Oct. 02, 2018
Xilinx, Inc., San Jose, CA (US);
Gordon I. Old, Edinburgh, GB;
Justin A. Fritz, Sunnyvale, CA (US);
XILINX, INC., San Jose, CA (US);
Abstract
Apparatuses and methods generally relating to a sort system, such as may be used in a data processing kernel, for list decoding of a Polar codeword are described. In one such sort system, a sorter circuit is configured to receive and sort path metrics for coded bits of the Polar codeword. The path metrics are obtained from log-likelihood ratios associated with the coded bits. A limiter circuit is configured to cull the sorted path metrics to provide a list having a subset of the path metrics to limit output paths of a list decoder. A normalizer circuit is configured to subtract a path metric of the path metrics or a threshold metric representing a minimum metric respectively from entries in the list to provide normalized path metrics to decode the Polar codeword.