@mherger, do you know, whether Logitech/Slimdevices ever patented anything from their ideas?

I'm wondering, as I'm just reading about the currently filed lawsuite from Sonos against Google: https://www.businessinsider.de/inter...0-1/?r=US&IR=T

For instance Sonos' syncing algorithm is described in the following patent:
https://patents.google.com/patent/US9195258B2/en

Interestingly its different from Logitechs one (i.e. they are 'tagging' the music frames with timing information, where LMS just provides the original stream and gives active 'commands' to boxes about playing faster to get into sync again).

Wondering why the guys over at Google copied Sonos' algorithm and not just went on with Slimdevices' open sourced (yet obfuscated with perl ) algorithm.