Wireless Headset Audio-Video Synchronization via Delay Compensation
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Solution Overview
Problem
Existing systems fail to synchronize video content presentation with audio content when multiple wireless and/or wire-based audio headsets are used, due to varying processing time delays across different headset types, leading to desynchronization issues.
Innovation Solution
The proposed system adjusts the communication timing of video and audio content based on unique time delays associated with each headset type, ensuring synchronous presentation by delaying video content accordingly to match the audio content presentation times across multiple wireless and wire-based headsets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless audio headsets are used with different processing time delays, then each user can individually listen to audio content, but video and audio content become desynchronized
Solution Approach 1:
The patent applies local quality by customizing the time delay compensation for each audio headset based on its specific processing characteristics. Instead of using a uniform delay for all headsets, the system determines individual delay values for each headset type (e.g., Bluetooth headsets vs. wired headsets) and applies appropriate compensation to maintain synchronization for each user independently
Solution Approach 2:
The system changes the time delay parameter dynamically based on the detected headset type. The media device adjusts the audio content timing parameter according to the specific characteristics of each wireless or wired headset, transforming the fixed synchronization approach into a variable parameter adjustment that adapts to different device specifications
2Manufacturing precision
If time delay compensation is applied to wireless audio headsets, then video-audio synchronization is improved, but wired audio headsets become desynchronized
Solution Approach 1:
The patent implements local quality by treating wireless and wired audio headsets differently with separate time delay compensation strategies. The system identifies the headset type and applies appropriate delay compensation only where needed, leaving wired headsets unchanged while compensating for wireless headset processing delays, thus maintaining synchronization for both types without interfering with either
Solution Approach 2:
The system segments the audio output into separate streams for different headset types, applying independent time delay compensation to each segment. This allows the media device to manage wireless and wired headsets independently, applying compensation to wireless headsets while maintaining original timing for wired headsets, thereby avoiding cross-type interference
3Adaptability or versatility
If multiple users simultaneously use different audio headsets, then each user can listen privately, but synchronization control becomes complex
Solution Approach 1:
The patent applies segmentation by separating the synchronization control into individual user-specific streams. Each user's audio content receives independent time delay compensation based on their headset type, allowing multiple users to simultaneously use different headset types without creating a complex unified synchronization problem. The media device manages each user's synchronization independently
Solution Approach 2:
The system implements local quality at the user level by customizing synchronization parameters for each individual based on their specific headset characteristics. This allows each user to experience optimized synchronization for their personal device while other users use different settings, avoiding the need for a complex global synchronization algorithm that must accommodate all possible headset combinations
Data Source
AI summary
Media device systems and methods synchronize video content with audio content presented by a plurality of wireless audio headsets. In an exemplary embodiment, a first time delay corresponds to a first duration of time between communication of the audio content from the media device and presentation of the audio content by a first wireless audio headset. A second time delay corresponds to a second duration of time between communication of the audio content from the media device and presentation of the audio content by a second wireless audio headset, wherein the first time delay is greater than the second time delay. Video content communicated to a display is delayed by the first time delay. Audio content communicated to the second wireless audio headset is delayed by a time delay difference between the first time delay and the second time delay.