US Patent Issued to AMAZON TECHNOLOGIES on Oct. 28 for "Audio playback and software mixer design in DSP with software time-synchronized playback" (American, Chinese Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,456,479, issued on Oct. 28, was assigned to AMAZON TECHNOLOGIES INC. (Seattle).

"Audio playback and software mixer design in DSP with software time-synchronized playback" was invented by Tianhe Wu (San Jose, Calif.), Qiao Mu (Beijing), Karthik Raghavan (Sunnyvale, Calif.) and Noah Guengerich (Bellevue, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device determines estimated playback latency data that may then be used to synchronize audio presentation with other devices. Playback audio data is stored in a buffer by an application processor. A digital signal processor (DSP) retrieves frames of audio data from the buffer. The DSP may generate ult...