Wireless multichannel neural recording with a 128-Mbps UWB transmitter for an implantable brain-machine interfaces.
Abstract
Simultaneous recordings of neural activity at large scale, in the long term and under bio-safety conditions, can provide essential data. These data can be used to advance the technology for brain-machine interfaces in clinical applications, and to understand brain function. For this purpose, we present a new multichannel neural recording system that can record up to 4096-channel (ch) electrocorticogram data by multiple connections of customized application-specific integrated circuits (ASICs). The ASIC includes 64-ch low-noise amplifiers, analog time-division multiplexers, and 12-bit successive approximation register ADCs. Recorded data sampled at a rate of 1 kS/s are multiplexed with time division via an integrated multiplex board, and in total 51.2 Mbps of raw data for 4096 ch are generated. This system has an ultra-wideband (UWB) wireless unit for transmitting the recorded neural signals. The ASICs, multiplex boards, and UWB transmitter unit are designed with the aim of implanting them. From preliminary experiments with a human body-equivalent liquid phantom, we confirmed 4096-ch UWB wireless data transmission at 128 Mbps for distances below 20 mm .
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The separated modules are connected by a flexible coaxial subcutaneous cable, which can transmit high data rate signals.
“The separated modules are connected by a flexible coaxial subcutaneous cable, which can transmit high data rate signals.”
From Advances in Neural Recording and Stimulation Integrated Circuits (2021) · cites this paper as Ando et al., 2016
The high transmission rate ensures stable recording of multi-electrodes, and the low output power has stronger anti-interference ability.
“The high transmission rate ensures the stable recording of multi-electrodes, and the low output power has stronger anti-interference ability.”
From Advances in Neural Recording and Stimulation Integrated Circuits (2021) · cites this paper as Ando et al., 2016
The neural recording module and the wireless data transmission module are implanted in the brain and abdomen, respectively.
“In addition, the neural recording module and the wireless data transmission module are implanted in the brain and abdomen, respectively.”
From Advances in Neural Recording and Stimulation Integrated Circuits (2021) · cites this paper as Ando et al., 2016
The communication range is only 20 mm, which means that the external communication device must be carried at any time.
“The communication range is only 20 mm, which means that the external communication device must be carried at any time.”
From Advances in Neural Recording and Stimulation Integrated Circuits (2021) · cites this paper as Ando et al., 2016
The system achieves a transmission rate of 128 Mbps, which is enough to support the application of thousands of electrodes.
“The structure of the system is shown in Figure 6B, achieving a transmission rate of 128 Mbps, which is enough to support the application of thousands of electrodes.”
From Advances in Neural Recording and Stimulation Integrated Circuits (2021) · cites this paper as Ando et al., 2016
A multi-channel neural recording for brain-machine interface (BMI) proposed by Ando et al. (2016) adopts an ultra-wideband (UWB) transmitter.
“A multi-channel neural recording for brain–machine interface (BMI) is proposed (Ando et al., 2016), which adopts an ultra-wideband (UWB) transmitter.”
From Advances in Neural Recording and Stimulation Integrated Circuits (2021) · cites this paper as Ando et al., 2016
The space for implantation is constrained due to the short range.
“Besides, the space for implantation is constrained due to the short range.”
From Advances in Neural Recording and Stimulation Integrated Circuits (2021) · cites this paper as Ando et al., 2016
The ZigBee module is added to control the implant because the communication direction of UWB can only be unidirectional (from inside to outside).
“The ZigBee module is added to control the implant because the communication direction of UWB can only be unidirectional (from inside to outside).”
From Advances in Neural Recording and Stimulation Integrated Circuits (2021) · cites this paper as Ando et al., 2016
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- Authors
- Ando, H., Takizawa, K., Yoshida, T., Matsushita, K., Hirata, M., & Suzuki, T.
- Affiliations
- Center for Information and Neural Networks (JP)
- Hiroshima University (JP)
- Osaka University Hospital (JP)
- Venue
- IEEE Transactions on Biomedical Circuits and Systems
- Published
- 2016-12
- Volume
- 10
- Issue
- 6
- Pages
- 1068-1078
- ISSN
- 1932-4545 (ISSN-L)
- 1940-9990
- OpenAlex
- W2325554185
- Cited by
- 95
- References
- 26
- Citations by year
- 2026: 6 · 2025: 8 · 2024: 5 · 2023: 7 · 2022: 15 · 2021: 15 · 2020: 11 · 2019: 11 · 2018: 8 · 2017: 8 · 2016: 1
- FWCI
- 4.50
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- IEEE Transactions on Biomedical Circuits and Systems (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Interface
- National Center of Neurology and Psychiatry
- Japan Society for the Promotion of Science (26282165)
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Analog and Mixed-Signal Circuit Design
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
- Physical Sciences › Engineering › Biomedical Engineering › Wireless Body Area Networks
- Keywords
- multichannel neural recording, electrocorticography, application-specific integrated circuits, time-division multiplexing, low noise amplifier, successive approximation register ADC, wireless data transmission
- MeSH terms
- Electrocorticography, Electrodes, Implanted, Equipment Design, Humans, Neurons, Signal Processing, Computer-Assisted, Wireless Technology, Brain-Computer Interfaces
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