Invention Grant
- Patent Title: Playback synchronization across playback devices
- Patent Title (中): 播放设备之间的播放同步
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Application No.: US13907791Application Date: 2013-05-31
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Publication No.: US09100687B2Publication Date: 2015-08-04
- Inventor: William David Amidei
- Applicant: Sonic IP, Inc.
- Applicant Address: US CA San Diego
- Assignee: Sonic IP, Inc.
- Current Assignee: Sonic IP, Inc.
- Current Assignee Address: US CA San Diego
- Agency: KPPB LLP
- Main IPC: H04H60/32
- IPC: H04H60/32 ; H04N7/173 ; H04N21/43 ; H04N21/8547

Abstract:
Systems and methods for synchronizing the playback of streamed content on multiple playback devices is disclosed. The systems and methods include receiving time information based on a network time source in the playback devices connected to a defined network. The playback clock in each playback device is set based upon the time information. A first playback device then generates presentation time information including a start time for playback and broadcast the presentation time information to the other playback device over the defined network. The playback devices use the presentation time information to adjust the presentation time stamps of the frames of the media content in the stream.
Public/Granted literature
- US20140359681A1 PLAYBACK SYNCHRONIZATION ACROSS PLAYBACK DEVICES Public/Granted day:2014-12-04
Information query