6 results about "Electrical brain activity" patented technology

A user interface system enables communication through inaudible speech by detecting physiological signals associated with inner voice communication. The system includes a wearable device positioned in, on, or around a user's ear, housing one or more sensor modalities such as electromyography (EMG) sensors for detecting muscle movements, functional near-infrared spectroscopy (fNIR) sensors for brain activity, and / or detection-and-ranging systems using sonar or radar for micro-deformations. Pre-processing modules condition the sensor data, which is then analyzed by one or more machine learning models to reconstruct the content of the user's inaudible communication and produce output representations. The system enables high-bandwidth natural language interaction without audible vocalization, maintaining privacy while supporting applications including AI assistant interaction, real-time translation, secure authentication, and inter-party communication.

Specifically, this invention relates to an acoustic stimulation electrophysiological system and control method based on real-time EEG feedback, comprising: an EEG acquisition module that acquires the user's raw EEG signals in real time via an electrode array, and transmits them to an EEG preprocessing and feature extraction module for filtering and noise reduction, extracting multi-frequency power feature data, and sending it to a sleep state recognition and safety monitoring module. The sleep state module identifies the user's state and transmits the result to an acoustic stimulation parameter decision module. This module generates acoustic stimulation control parameters based on the state recognition result and sends them to a sound field synthesis and rendering module via a communication module to generate multi-channel acoustic stimulation signal waveform data, which is then transmitted to an acoustic stimulation output module to be converted into analog signals to drive an acoustic device to generate a specific sound field. The safety monitoring module continuously monitors abnormal EEG activity. The advantage of this invention is that the entire system forms a closed-loop feedback path from signal acquisition to acoustic stimulation output and safety monitoring.

This invention provides an electroencephalogram (EEG) simulation device, comprising an interaction module for receiving and displaying user input information and feedback signals from a processing module, converting the input information into input signals and sending them to the processing module; a processing module for generating corresponding modulation control signals, power control signals, and feedback signals based on the input signals; a signal generation module for generating waveform signals; a signal modulation module for modulating the waveform signals according to the modulation control signals to generate simulated EEG signals for output; and a power supply module for supplying power to other modules according to the power control signals. The beneficial effects of this invention are that the precise modulation of the waveform signals and the application of bias voltage make the output simulated EEG signals more closely resemble real brain activity, which is beneficial for scientific research and clinical applications; and the design of common-mode filters and capacitors in the power supply module effectively reduces the impact of environmental noise on system performance.

A medical device system is configured to sense electrical brain activity and sense electrical cardiac activity. The system may detect a concerning heart rate from the electrical cardiac activity and determine that the concerning heart rate is a hemodynamically unstable cardiac rhythm based on the sensed electrical brain activity. The medical device system may generate an output for providing a response to determining that the concerning heart rate is a hemodynamically unstable rhythm.

Disclosed herein is a pair of EEG glasses or other electroencephalographic eyewear comprising an eyewear frame with a frontpiece and two sidepieces (e.g. temples), wherein there is an arcuate arm which extends out from the sidepiece toward the person's head and an electrode on the arcuate protrusion. The electrode collects data concerning the person's brain activity.

Sleep performance systems and methods of using the same are disclosed. The sleep performance systems can improve the quality of sleep by making one or more recommendations to the subject for increasing a sleep quality score. The sleep performance systems can have one or more electroencephalography (EEG) electrodes configured to measure a subject's brain activity during sleep. The sleep performance systems can have a processor configured to quantify the quality of the subject's slow-wave sleep by determining one or more sleep performance scores associated with the measured brain activity. The sleep performance systems can recommend and / or activate sleep improvement programs based on various threshold scores.