Watch Audio Handoff via Wireless Headphones
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Solution Overview
Problem
Current technologies face challenges in maintaining seamless communication session continuity across devices, particularly in conserving battery life and ensuring audio quality when a communication session is initiated on one device and needs to be handed off to another, such as from a mobile phone to a watch or wireless audio output device.
Innovation Solution
A wireless audio output device is used to monitor the quality of the audio link and signal when to hand off the communication session, allowing the watch to conserve battery life by utilizing the mobile phone's cellular circuitry for as long as possible and ensuring uninterrupted audio performance by establishing an audio link directly with the wireless audio output device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the watch maintains a peer-to-peer connection with the mobile phone for audio relay, then battery life is conserved by using the phone's cellular circuitry, but audio quality degrades when the connection deteriorates
Solution Approach 1:
The mobile phone acts as an intermediary device that relays audio between the watch and the audio output device. The watch initiates the communication session and connects to the audio output device through the phone's peer-to-peer connection, allowing the watch to conserve battery while maintaining audio quality through the phone's cellular circuitry.
Solution Approach 2:
The system dynamically changes connection parameters by monitoring connection quality metrics. When the peer-to-peer connection quality deteriorates below a threshold, the system automatically switches from the low-power peer-to-peer path to a direct cellular path, changing the operational parameters to maintain audio quality while managing battery consumption.
2Reliability
If the watch hands off the communication session to another device, then audio quality is maintained, but battery life is reduced due to direct cellular usage
Solution Approach 1:
The system implements dynamic handoff capability where the watch can switch between different communication paths based on real-time conditions. The watch monitors connection quality and automatically hands off to alternative devices or paths when necessary, creating a dynamic system that adapts to changing environmental conditions to balance audio quality and battery life.
3Reliability
If the watch uses its own cellular circuitry for communication, then communication session continuity is maintained, but battery life is rapidly depleted
Solution Approach 1:
The mobile phone serves as a mediator that enables the watch to access cellular network capabilities without using its own cellular circuitry. The watch leverages the phone's cellular connection through the peer-to-peer audio relay, allowing communication session continuity while avoiding the high energy consumption of direct cellular usage by the watch.
Data Source
AI summary
A device providing inter-device call continuity facilitated by a wireless audio output device may include a processor configured to initiate, over a peer-to-peer connection with a second device, a communication session between the second device and a third device. The processor may be further configured to establish, over the peer-to-peer connection with the second device, an audio link corresponding to the communication session. The processor may be further configured to determine, based at least in part on the audio link, that a connection quality of the peer-to-peer connection satisfies a connection degradation condition. The processor may be further configured to request, over a wide area network connection, for the communication session with the third device to be handed-off from the second device to the first device, and to establish, over the wide area network connection, the communication session with the third device.