STOCHASTIC FILTER Russian patent published in 1997 - IPC

FIELD: computer engineering. SUBSTANCE: device has clock oscillator, group of gates, three delay gates, group of electric-optical modulators, group of function generators, input gate, group of photodetectors, linear subtraction unit, minimal signal selector, group of comparators and converter from positional code to analog signal. Information inputs of group of gates serve as device information inputs. Their control inputs are joined with inputs of all delay gates and connected to control inputs of matrix optical transparency. Output of optical splitter is connected to information inputs of group of modulators which control inputs are connected to outputs of corresponding optical function generators, which control inputs are joined and connected to output of input gate, which information input serves as input of signal to be read and which control input is connected to output of second delay gate. Output of first delay gate is connected to control input of light beam. Output of third delay gate is connected to joined control inputs of group of photodetectors, which information inputs are connected to optical splitter-integrator which has group of optical fibers which spread into fibers which number is equal to their serial number in group. Fiber with same number in these groups are joined at output of fibers which outputs serve as outputs of optical splitter-integrator and are joined to outputs of electric-optical modulators and connected to deduction inputs of linear subtraction unit, which minuend inputs are joined and are connected to line which sets constant potential. Its outputs are connected to control inputs of corresponding comparators and inputs of minimal signal selector, which output is connected to information inputs of all comparators which outputs are connected to corresponding inputs of converter from positional code to analog signal, which output serves as device output. EFFECT: optimal assessment of non-linear stochastic signals. 2 dwg