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US 2020/0091959 A1Published application
Wireless Audio Synchronization Using a Spread Code
AssigneeRoku, Inc.
InventorsRobert Caston CURTIS, Mark ELY, Brian Thoft Moth MØLLER
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AssigneeRoku, Inc.
InventorsRobert Caston CURTIS, Mark ELY, Brian Thoft Moth MØLLER
Estimating the term…
Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for synchronizing playback of audiovisual content among multiple speakers. In some embodiments, a first smart speaker receives a spread spectrum signal from a second smart speaker over an audio data channel. The first smart speaker despreads the spread spectrum signal based on a spreading code. The first smart speaker determines a time of receipt of the spread spectrum signal based on the despreading. The first smart speaker receives a time of transmission of the spread spectrum signal. The first smart speaker then calculates a playback delay based on the time of receipt and the time of transmission. Then the first smart speaker controls the playback of the audiovisual content based on the playback delay.
A computer implemented method for synchronizing playback of audiovisual content at a first electronic device and a second electronic device, comprising:
A system, comprising:
A non-transitory computer-readable device having instructions stored thereon that, when executed by at least one computing device, cause the at least one computing device to perform operations comprising:
Dependencies are inferred from the claim text.