After Google, Now Microsoft Tries to Patent Asymmetric Numeral Systems Posted by eln1 on Monday March 08, 2021 @08:33AM from the encode.su dept. https://encode.su/threads/2648-Published-rANS-patent-by-Storeleap/page5 ( 1 comment | 5 points | on HN )
This patent covers rANS variant which is used for example in https://en.wikipedia.org/wiki/JPEG_XL - if granted, only Microsoft will be able to make its hardware encoders/decoders.
Lots of materials about ANS: https://encode.su/threads/2078-List-of-Asymmetric-Numeral-Sy...
The Google patent story: https://arstechnica.com/features/2018/06/inventor-says-googl...