FILTER WITH DISCONTINUOUSLY ADJUSTABLE CHARACTERISTICS Russian patent published in 2008 - IPC H03H21/00 

FIELD: automatics, possible use in signal filtration systems for automation of technological processes.

SUBSTANCE: device contains input signal source (1), filter (2) with structure which is discontinuously changeable in electric signal level function, which filter has information and control inputs, serially connected first adder (3) and integrator (4), output of which is connected to inputs of n number of relay elements (5-8), where n≥3...... - odd number, outputs of which are connected to inputs of second adder (9), output of which is connected to first input of first adder (3), second input of which is connected to source (1), decoder (10) with n-1 inputs, which are connected to outputs of corresponding relay elements (6-8), and outputs of decoder (10) are connected to control inputs of filter (2), output of which is connected to output clamp (11) of device. In accordance to the invention, input of filter (2) is connected to second input of first adder (3).

EFFECT: increased precision and interference resistance during realization of adjustable filters with differentiating characteristics.

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