In 2011, our laboratory developed the ASIC integrated into the WIMAGINE® implant, which played a crucial role in the motor recovery of a patient paralyzed due to a spinal cord injury. We are now focusing on designing a new generation of electronic interfaces to interact with the brain to enhance performance and energy efficiency. This PhD project will involve designing an innovative information processing chain for capturing and transmitting neural signals within an implantable medical device. The work will encompass the conceptualization of the architecture, integration into an integrated circuit, and system evaluation. This project represents an exceptional opportunity to delve into the fields of sensor electronics, signal processing, and artificial intelligence. The objective is to efficiently transform neural signals into actionable data through a data-driven method.