Johnson founded Kernel in 2016 with a $54 million investment and began researching
neuroprosthetics, devices implanted into the brain that mimic, substitute, or assist brain functions. Kernel raised $53 million in 2020.
Kernel Flow Kernel Flow is a wearable time-domain
functional near-infrared spectroscopy (TD-fNIRS) system. fNIRs uses infrared light to measure changes in the oxygenation of blood, which is a proxy for neural activity. Kernel Flow can achieve a 200 Hz sampling rate. The spatial resolution of f-NIRS is strongly limited by scattering, with most existing f-NIRS systems having resolutions > 2 cm. == Operations ==