Cross-Platform Playback Session Transfer With Position Continuity
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Solution Overview
Problem
Existing media playback systems lack seamless interoperability between different platforms, requiring users to manually stop and recreate playback sessions when transitioning between devices from one domain to another, which is inconvenient and cumbersome, especially when dealing with playlists and play positions.
Innovation Solution
Automating the playback session transition process by querying the current state of the source domain, detecting trigger conditions such as location changes or device proximity, and sending instructions to initiate the playback session on the target domain with the correct audio content and play position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual stopping and recreation of playback sessions is implemented when transitioning between devices from different domains, then platform interoperability is achieved, but user convenience and operational ease deteriorate
Solution Approach 1:
The patent introduces a session manager as an intermediary component that automatically manages playback session transitions between different domains (Apple AirPlay, Spotify Connect, native domain). The session manager detects when a playback session needs to transition between domains and automatically recreates the session with correct parameters without requiring user intervention, thus maintaining platform interoperability while preserving user convenience
Solution Approach 2:
The system implements self-service automation where the session manager autonomously detects trigger conditions (location changes, device proximity), queries the current playback state, and initiates session recreation on target devices. This automated self-service approach eliminates manual user operations while ensuring seamless cross-platform playback continuity
2Ease of operation
If automated playback session transition is implemented across different platforms, then user convenience and operational ease are improved, but system complexity increases
Solution Approach 1:
The patent segments the complex cross-platform playback system into distinct functional modules: domain detection module, session state query module, trigger condition detection module, and session recreation module. Each module handles a specific aspect of the transition process, making the overall system more manageable and maintainable despite the increased automation capabilities
Solution Approach 2:
The session manager is designed as a universal component that handles multiple platform protocols (AirPlay, Spotify Connect, native domain) through a unified interface. This multi-functional design consolidates what would otherwise require separate handling mechanisms for each platform, reducing overall system complexity while enabling automated transitions across all domains
3Loss of information
If playback session state information is queried and transferred between domains, then continuity of audio content and play position is maintained, but loss of information is reduced
Solution Approach 1:
The system performs preliminary actions by querying and storing the current playback session state (audio content, play position, metadata) before initiating a domain transition. This advance preparation ensures that when the session is recreated on the target device, all necessary information is already available, maintaining playback continuity without requiring complex real-time information synchronization
Data Source
AI summary
As noted above, example techniques relate to playback transitions between platforms. In an example implementation, while a first playback device is playing back audio content during a first playback session in a first domain, a mobile device detecting a first event configured as a trigger to transfer playback to a second domain on a second playback device. In response to detecting the first event, the mobile device determining playback information for the playback session and sends, via a network interface, instructions to initiate a playback session in the second domain to reproduce the first playback session in the first domain.