Earlier quoted context omitted.
Apparently synchronized speakers grouped to zones, with the possibility for the zones to overlap so that one speaker could be in multiple zones rather than just one. To quote the judge: > Then, in 2019, Sonos filed continuation applications for the patents in suit. To get around the prior art, Sonos sought to patent zone scenes with a new twist: overlap. With overlap, a zone player could be a member of more than one…
Your description got me wondering if Sonos had actually done anything novel so I decided to go and dig up the actual patent. Best I can tell, it's this one: https://patents.google.com/patent/US7571014B1/en Spoiler, it contains a detailed description of the functionality, complete with UI mockups and flow charts. It does not contain any novel method for keeping audio in sync between rooms, for example. It is insane to…
Every software patent is like this, I've never seen anything relevant yet that I can't come up myself thinking about domain. They are very vague and useless on purpose.