Invention Grant
- Patent Title: Audio and video synchronization
- Patent Title (中): 音视频同步
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Application No.: US13870788Application Date: 2013-04-25
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Publication No.: US08922713B1Publication Date: 2014-12-30
- Inventor: Sreeram Raju Chakrovorthy , Ziqiang Huang , Jaee Patwardhan
- Applicant: Amazon Technologies, Inc.
- Applicant Address: US NV Reno
- Assignee: Amazon Technologies, Inc.
- Current Assignee: Amazon Technologies, Inc.
- Current Assignee Address: US NV Reno
- Agency: Lindauer Law, PLLC
- Main IPC: H04N7/26
- IPC: H04N7/26 ; H04N9/475 ; H04N5/04

Abstract:
Content comprising audio and video may be processed by different processing pipelines, but latencies between these pipelines may differ due to differences in data compression, processing loads, and so forth. The time between entry and exit from the pipeline of a frame is measured to determine pipeline latency. The pipeline latency may be used to shift timing of audio frames, video frames, or both, such that they are synchronized during presentation.
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