EEG Earphone Eartip Structure for Stable Ear Canal Contact

The patent employs flexible eartips made of elastic material that can deform to conform to the unique shape of each user's ear canal. These flexible eartips integrate electrodes that maintain stable contact with the ear canal wall, solving the problem of poor electrode contact with varying ear shapes while enabling accurate electroencephalogram signal acquisition.

The patent changes the physical parameter of the electrode structure from rigid to flexible by using elastic materials for the eartips. This parameter change allows the electrode-bearing eartips to adapt their shape dynamically, improving measurement precision without significantly increasing device complexity.

The patent implements a self-learning mechanism where the system automatically adapts to each user's characteristics through continuous data collection and model training. The processing unit learns individual user patterns over time, enabling accurate state estimation customized for each user without requiring manual configuration or complex initial setup.

The system incorporates feedback loops where electroencephalogram signal data is continuously collected, used to train and refine the learning model, and then applied to improve state estimation accuracy. This feedback mechanism enables the system to progressively adapt to individual user characteristics, enhancing measurement precision while managing processing complexity through iterative improvement.