TWS Headphone Snoop Mode With Error Correction Relay
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Solution Overview
Problem
Conventional wireless headphones with true wireless stereo (TWS) technology face issues of high power consumption and data transmission quality due to the primary headphone forwarding data to the secondary headphone, and physical obstructions affecting signal latency.
Innovation Solution
Implementing a system where one wireless headphone works in a snoop mode to receive data directly from the audio source, reducing the primary headphone's power consumption and improving data transmission quality by using error correcting codes to correct errors without re-transmitting data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the primary headphone forwards data to the secondary headphone in conventional TWS systems, then the secondary headphone can receive audio information, but the primary headphone's power consumption increases and data transmission quality deteriorates
Solution Approach 1:
The system segments the data reception function by enabling the secondary headphone to directly receive audio data from the audio source via snoop mode, while the primary headphone focuses on error correction and coordination. This division eliminates the need for the primary headphone to forward data to the secondary headphone, reducing power consumption and improving transmission quality.
Solution Approach 2:
The primary headphone acts as an intermediary that coordinates error correction between the audio source and secondary headphone. It receives error correction data from the audio source and forwards it to the secondary headphone, enabling the secondary headphone to correct reception errors independently without requiring data retransmission, thus improving reliability while reducing power consumption.
2Reliability
If the primary headphone forwards data to the secondary headphone, then the secondary headphone can receive audio information, but re-transmissions are required when errors occur, increasing system complexity
Solution Approach 1:
The system implements preliminary error correction by having the primary headphone receive error correction data from the audio source and forward it to the secondary headphone before the secondary headphone attempts to decode the audio data. This preliminary action enables the secondary headphone to correct errors in advance, eliminating the need for re-transmissions and reducing system complexity.
Solution Approach 2:
The system implements a feedback mechanism where the primary headphone monitors the secondary headphone's data reception status and coordinates error correction accordingly. When the secondary headphone detects errors in received data, it requests error correction data from the primary headphone, which obtains it from the audio source and forwards it, enabling error-free decoding without re-transmissions.
Data Source
AI summary
Embodiments of wireless audio systems and methods for wirelessly communicating audio information are disclosed herein. In one example, a wireless audio system includes a first wireless headphone and a second wireless headphone. The first wireless headphone is configured to receive, from an audio source, audio information using a first type of short-range wireless communication; in response to successfully receiving the audio information from the audio source, generate an error correcting code based on the audio information; and transmit an error correcting message including the error correcting code without transmitting the audio information. The second wireless headphone is configured to receive, from the audio source, the audio information using the first type of short-range wireless communication; receive, from the first wireless headphone, the error correcting message including the error correcting code; and in response to successfully receiving the audio information directly from the audio source or based on the error correcting code, transmit a first status message (STAT) to the first wireless headphone. The first wireless headphone is further configured to receive, from the second wireless headphone, the first STAT. One of the first and second wireless headphones works in a snoop mode to communicate with the audio source based on communication parameters of another one of the first and second wireless headphones.