no code implementations • 24 Sep 2022 • Baibhab Chatterjee, K Gaurav Kumar, Shulan Xiao, Gourab Barik, Krishna Jayant, Shreyas Sen
Untethered miniaturized wireless neural sensor nodes with data transmission and energy harvesting capabilities call for circuit and system-level innovations to enable ultra-low energy deep implants for brain-machine interfaces.
no code implementations • 18 May 2022 • Baibhab Chatterjee, Mayukh Nath, Gaurav Kumar K, Shulan Xiao, Krishna Jayant, Shreyas Sen
To solve the challenge of powering and communication in a brain implant with low end-end channel loss, we present Bi-Phasic Quasistatic Brain Communication (BP-QBC), achieving < 60dB worst-case end-to-end channel loss at a channel length of 55mm, by avoiding the transduction losses during field-modality conversion.