BLUETOOTH MEDIA DEVICE TIME SYNCHRONIZATION

Synchronized media streaming in a device chain including first, second and third Bluetooth media device having a controller and time synchronization algorithm. The first device formats a first media packet including received media data, second device address, and synchronization information includin...

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Bibliographische Detailangaben
Hauptverfasser: LEVY, David, ZIV, Dotan, MALOVANY, Ram, LOEWY, Chen
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:Synchronized media streaming in a device chain including first, second and third Bluetooth media device having a controller and time synchronization algorithm. The first device formats a first media packet including received media data, second device address, and synchronization information including packet start time including a delay time and cumulative clock drift counted thus far. The second device receives the first packet and formats a second packet including the media data, third device address, updated synchronization information including the second packet's play start time, local clock time, clock drift, and a cumulative clock drift counted thus far. The second device transmits the second packet to the third device. The synchronization algorithms begin synchronized playing of the media data including the first device playing after the delay time, second device playing after the first packet's play start time, and the third device playing after the second packet's play start time.