San Francisco-based company Dolby Laboratories, Inc. specializes in audio-noise reduction and audio encoding/compression. Dolby has a massive scale of operations, with its technology being deployed by premium electronics makers across a wide spectrum including TVs, PCs, tablets, DVD/Blu-ray players, operating systems and set-top boxes.
Source: Can Dolby Continue to Ride on Dolby Cinema’s Strength? – NASDAQ.com