# Dolby International AB — Patents explained on PatentBrief

Dolby International AB has 1 landmark patent explained in plain English on PatentBrief.

- [How Digital Audio Compression Saves Space by Copying Frequencies](https://patentbrief.org/patent/us/RE47935/google-chrome-browser) — granted 2020
  A method for shrinking audio files by only saving the lower-pitched sounds and using clever math to reconstruct the higher-pitched sounds from them.

**Full profile:** https://patentbrief.org/company/dolby-international-ab

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_Source: PatentBrief — https://patentbrief.org. Plain-English explanations of US patents._