Google vs. the Luddites: A Patent Battle Neither Side Should Win

Last June, the U.S. Patent and Trademark Office published U.S. Patent Application No. 20170164007, titled Mixed Boolean-Token ANS Coefficient Coding. Originally filed by Google with the USPTO in December 2016, the patent application claims a method for decoding an encoded bitstream using a computing device, the bitstream including frames having blocks of pixels, which involves the use of an entropy decoder state machine including a Boolean asymmetric numeral system (ANS) decoder and a symbol ANS decoder. The claimed invention is intended to improve the transmission of digital video streams with the use of the entropy decoder to reduce the amount of data involved in the transmission of digital streams.

http://www.ipwatchdog.com/2018/06/27/google-luddites-patent-battle/id=98454/