DETECTION METHOD AND APPARATUS Russian patent published in 2014 - IPC G06F7/58 

FIELD: physics, computer engineering.

SUBSTANCE: disclosed method and apparatus relate to electronic detectors which detect changes in ambient electromagnetic background. The main field of application is determining the emotional state of consciousness, entertainment and electronic games with interactive control, equipment for solutions in the field of decorative and designer works, for interior installations and lighting devices. The detection method is characterised by that an initial electric signal is emitted from a noise source which, through amplification and filtration, is converted to a random pulse sequence consisting of high- and low-level voltage pulses, which is converted to a sequence of numerical values; the numerical values from said sequence are sampled over a certain time interval and the detected signal is obtained by analysing the numerical values in the sample, wherein the sequence of numerical values is obtained by calculating over a given time interval the difference between duration of the high- and low-level voltage pulses of the random pulse sequence, and the detected signal is obtained by calculating the variance of numerical values in the sample. The apparatus comprises a noise signal source, three amplifiers, a microprocessor unit which calculates variance and analyses it, two frequency-dependent circuits and a LED indicator.

EFFECT: high sensitivity and reliability of detection.

6 cl, 1 dwg