1,720,983 research outputs found
SIGNAL CONDITIONING CIRCUIT (Circuito per il condizionamento di un segnale)
No full textThe present invention relates to a signal conditioning circuit, comprising: an amplification and filtering chain (5C) having amplifier means (6) and filter means (7), each with an input connection (6A, 7A) and an output connection (6B, 7B); a first feedback path (8) for providing feedback to said amplification and filtering network (6, 7), including a first phase-shifting network (11) having an input connection (HA) and an output connection (11B). The circuit (5) is characterized in that it comprises a second feedback path (9) for providing feedback to said amplifier means (6), including a second phase-shifting network (10) having an input connection (10A) and an output connection (10B); said input connection (11A) of said first phase-shifting network (11) being connected with said output connection (6B) of said amplifier means (6); said output connection (HB) of said first phase-shifting network (11) being connected with the input connection (10A) of said second phase-shifting network (10) and with said input connection (7A) of the filter means (7); said first phase-shifting network (11) being designed to compensate for errors in said output connection (6B) of said amplifier means (6) or to operate when said output connection (6B) of said amplifier means (6) is in a saturated condition
A Home Automation Interface for BCI application validated with SSVEP protocol
Full text linkThis work aimed at developing a BCI driven application for the control of a commercial home automation system. The application was developed using the BCI framework proposed by the SensibiLab Laboratories (Politecnico di Milano) and interfaced with a four command SSVEP based system.
A specific software module was implemented in order to provide an interaction layer with an home automation system. A MyHome® gateway was provided by BTicino spa (Erba, Italy) and a basic demonstrator was set-up in our laboratory. The standard physical communication layer of the adopted gateway is RS-232 and, in order to maximize the ease of installation, a specific RS-232 to Bluetooth module was designed. The Application layer was implemented using the OpenWebNet® language proposed by BTicino. Although the current demonstrator supports only a few light-point and some auxiliary devices, the software module supports all the options provided by the home automation system. Six healthy subjects whose ability to use the SSVEP system was already assessed were able to control the demonstrator
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
A wearable device for continuous monitoring of heart mechanical function based on ImpedanceCardioGraphy
No full text
BCI++: an object-oriented BCI Prototyping Framework
No full textThis work aimed at providing a set of tools for the development of home Brain Computer Interfaces based on a low cost acquisition and processing device which could be used by both the end-user in their domestic activities and by the researcher in order to develop new protocols and algorithms and all the software modules necessary to ease the interfacing of the system to external devices (eg. Home automation systems). The framework was validated by setting up a BCI system based on the SSVEP protocol. Six subjects out of ten healthy users were able to use the system in a home automation and in a gaming application
- …
