Our findings seem to show the value of ERP monitoring in VS and MCS patients as a means of investigating residual cognitive function. This approach could guide early therapeutic and rehabilitation interventions, and contribute to identifying better diagnostic and prognostic markers for use in unresponsive or low-responsive patients.

This letter introduces a 5-transistors (5T) implementation of CMOS Image Sensors (CIS) pixels enabling the combination of deep sub-electron noise performance with wide dynamic range (DR). The 5T pixel presents a new technique to reduce the sense node capacitance without any process refinements or voltage level increase and features adjustable conversion gain (CG) to enable wide dynamic imaging. The implementation of the proposed 5T pixel in a standard 180 nm CIS process demonstrates the combination of a measured high CG of 250 µV/e − and low CG of 115 µV/e − with a saturation level of about 6500 e − offering photo-electron counting capability without compromising the DR and readout speed.

No abstract

No abstract

Abstract-This paper presents an analytical comparison of two commonly used read-out structures for pulse oximeters, in a wearable application context. The objective is to analyze and highlight the trade-off between the SNR and the power consumption. The proposed analysis clarifies, by the means of analytical equations, the impact of the input photocurrent, the photodiode parasitic capacitance, the feedback impedance and the system bandwidth on the SNR of the two proposed front-end topologies. The paper shows that using a charge-amplifier in the front-end requires 8 times less LED power than a transresistance amplifier for achieving the same SNR.