Wireless Stereo Headphones With Snoop-Mode Error Correction
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Solution Overview
Problem
Conventional wireless stereo headphones face challenges with high power consumption in the primary headphone and data transmission quality issues due to the physical structure of the human head, leading to latency and lag between the left and right headphones.
Innovation Solution
Implementing a wireless audio system where one headphone establishes a normal communication link with the audio source, while the other operates in snoop mode to receive data, reducing the primary headphone's power consumption and improving data transmission quality by using error correcting codes to correct errors without re-transmitting audio data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the primary wireless headphone maintains continuous communication link with audio source, then data transmission reliability is improved, but power consumption increases
Solution Approach 1:
The system divides the wireless audio transmission task into two independent paths: the primary headphone maintains a full communication link with the audio source for reliable data reception, while the secondary headphone uses a simplified snoop mode to receive transmissions. This segmentation allows the primary headphone to focus on reliable connection maintenance without bearing the full burden of continuous high-power communication for both devices.
Solution Approach 2:
The primary wireless headphone acts as an intermediary between the audio source and the secondary headphone. It receives audio data from the audio source and simultaneously forwards it to the secondary headphone in snoop mode. This intermediary role allows the secondary headphone to conserve power by not maintaining its own independent communication link with the audio source.
2Reliability
If error correcting codes are implemented, then data transmission quality is improved, but communication overhead increases
Solution Approach 1:
Error correcting codes are pre-calculated and attached to audio data packets before transmission. The primary headphone generates these error correction codes in advance as part of the data preparation process, so that when data is transmitted to the secondary headphone, the correction mechanism is already in place. This preliminary action ensures data quality without adding complex real-time processing overhead during communication.
3Use of energy by moving object
If snoop mode is used by secondary headphone, then power consumption is reduced, but data reception reliability may deteriorate
Solution Approach 1:
The secondary headphone in snoop mode passively receives transmissions from the primary headphone without actively managing its own communication link. The error correction codes embedded in the data stream enable the secondary headphone to self-correct reception errors autonomously, maintaining reliability despite the simplified receive-only operation mode.
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 and a second wireless headphones. The first wireless headphone is configured to receive, from an audio source, audio information using a short-range wireless communication; in response to successfully receiving the audio information, generate an error correcting code based on the audio information; and transmit an error correcting message including the error correcting code. The second wireless headphone is configured to receive, from the audio source, the audio information using the 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 based on the error correcting code, transmit an ACK message to the audio source. 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.