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Fast-resume audio playback

  • US 10,430,153 B2
  • Filed: 06/19/2017
  • Issued: 10/01/2019
  • Est. Priority Date: 09/30/2013
  • Status: Active Grant
First Claim
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1. A system comprising;

  • a network device comprising a non-transitory computer-readable memory comprising instructions that, when executed by a processor, cause the network device to perform functions comprising transmitting to the playback device a pause command and a resume command;

    a playback device operably coupled to the network device via a data network, wherein the playback device is a first member of a synchrony group, and wherein the playback device comprises non-transitory computer-readable memory comprising instructions that, when executed by a processor, cause the playback device to perform functions comprising;

    playing back audio content in synchrony with a second member of the synchrony group based on playback timing information;

    while synchronously playing back the audio content, (i) transmitting the playback timing information to the second member of the synchrony group and (ii) receiving, from the network device, the pause command, wherein the transmitted playback timing information comprises a first timestamp;

    in response to the pause command, pausing the synchronous playback prior to a time indicated by the first timestamp and a second timestamp;

    while the synchronous playback is paused, receiving the resume command;

    in response to the resume command, (i) instructing the second member of the synchrony group to update the first timestamp based on a new start time indicative of when the synchronous playback is to be resumed, (ii) update the second timestamp such that the updated second timestamp is synchronized with the updated first timestamp, and (iii) resume the synchronous playback based on the updated second timestamp.

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