After Google, Now Microsoft Tries to Patent Asymmetric Numeral Systems(encode.su)
encode.su
After Google, Now Microsoft Tries to Patent Asymmetric Numeral Systems
https://encode.su/threads/2648-Published-rANS-patent-by-Storeleap/page5
https://encode.su/threads/2648-Published-rANS-patent-by-Storeleap/page5
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...