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Related Experiment Video

Updated: Mar 24, 2026

A Wireless, Bidirectional Interface for In Vivo Recording and Stimulation of Neural Activity in Freely Behaving Rats

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Wireless Multichannel Neural Recording With a 128-Mbps UWB Transmitter for an Implantable Brain-Machine Interfaces.

H Ando, K Takizawa, T Yoshida

IEEE Transactions on Biomedical Circuits and Systems

|March 2, 2016

Summary

This summary is machine-generated.

This study introduces a 4096-channel neural recording system using custom ASICs and UWB wireless transmission for long-term brain monitoring. The system enables high-density electrocorticogram data acquisition for brain-machine interfaces and neuroscience research.

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Last Updated: Mar 24, 2026

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Area of Science:

Neuroscience
Biomedical Engineering
Electrical Engineering

Background:

Large-scale, long-term, and safe neural recordings are crucial for advancing brain-machine interfaces (BMIs) and understanding brain function.
Existing systems often face limitations in channel count, recording duration, or biocompatibility for chronic implantation.

Purpose of the Study:

To develop and validate a novel multichannel neural recording system capable of high-density, long-term, and wireless electrocorticogram (ECoG) data acquisition.
To enable seamless data transmission for potential clinical applications and fundamental neuroscience research.

Main Methods:

Designed a multichannel neural recording system utilizing custom application-specific integrated circuits (ASICs), each featuring 64 channels of low-noise amplifiers, multiplexers, and ADCs.
Integrated multiple ASICs to achieve a 4096-channel capacity, with data multiplexed via an integrated board for a total raw data rate of 51.2 Mbps.
Incorporated an ultra-wideband (UWB) wireless unit for transmitting recorded neural signals, with components designed for implantation.

Main Results:

Successfully demonstrated a 4096-channel neural recording system with integrated UWB wireless transmission.
Achieved wireless data transmission of 128 Mbps for 4096 channels over distances below 20 mm in preliminary tests using a human body-equivalent liquid phantom.
The system's components (ASICs, multiplex boards, UWB transmitter) are designed for implantable applications.

Conclusions:

The developed 4096-channel neural recording system offers a promising solution for high-density, long-term neural data acquisition.
The UWB wireless transmission capability facilitates untethered, implantable neural monitoring, paving the way for advanced BMIs and brain research.
Preliminary validation confirms the system's feasibility for reliable, high-throughput wireless neural signal transmission in close proximity.