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Systems and methods for synchronizing multiple electronic devices

  • US 9,967,847 B2
  • Filed: 10/26/2017
  • Issued: 05/08/2018
  • Est. Priority Date: 04/29/2013
  • Status: Active Grant
First Claim
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1. A method comprising:

  • joining, by an audio playback device, an audio playback group, wherein the audio playback group includes a master device that provides timing information for playback of audio content by the audio playback group;

    receiving, by the audio playback device from the master device, a timing signal;

    determining, by the audio playback device based on the timing signal, a difference between a clock of the audio playback device and a clock of the master device;

    retrieving from memory, by the audio playback device, the difference between the clock of the audio playback device and the clock of the master device;

    receiving by the audio playback device from the master device, a first time corresponding to audio data to be played by the audio playback device as part of the audio playback group;

    determining by the audio playback device, a second time based on (i) the first time and (ii) the difference between the clock of the audio playback device and the clock of the master device; and

    playing, by the audio playback device, the audio data at the second time according to the clock of the audio playback device.

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