- “ There are a lot of devices and methods for inducing alpha waves to a user. Out of the prior arts, a method for inducing the alpha waves to the user by giving the user an external stimulus (ultrasonic waves, sound or light) is a method to continuously apply the external stimulus artificially without regard to the state of the user’s brain waves.
-  However, the method has several disadvantages that people cannot confirm that the brain waves are induced into alpha waves actually and the continuous external stimulus is harmful to human body.”
System and method for neural stimulation using spike frequency modulation
US Patent US20210138249A1
Embodiments may comprise receiving electrical and optical signals from electrophysiological neural signals of neural tissue from at least one read modality, wherein the electrophysiological neural signals are at least one of Spike frequency modulated or Spike frequency demodulated, encoding the received electrical and optical signals using a Fundamental Code Unit, automatically generating at least one machine learning model using the Fundamental Code Unit encoded electrical and optical signals, generating at least one optical or electrical signal to be transmitted to the brain tissue using the generated at least one machine learning model, wherein the generated signals are at least one of Spike frequency modulated or Spike frequency demodulated, and transmitting the generated at least one optical or electrical signal to the neural tissue to provide electrophysiological stimulation of the neural tissue using at least one write modality.