DIGITAL PREDICTING AND DIFFERENTIATING DEVICE Russian patent published in 2012 - IPC G06F15/00 G06G7/30 

FIELD: information technology.

SUBSTANCE: device has a smoothing unit; a prediction unit having a first, a second and a third subtractor; a second derivative estimating unit having a subunit for calculating a second derivative at a second (n-1)-th reference point of the input process history consisting of an adder and a block of inverters, in which the addend input of the adder is connected to the data output of the smoothing unit, and the augend input of the adder is connected through the block of inverters to the output of the second adder of the subtractor, the output of the adder of the subunit is the third data output of the device, and the subunit for calculating the second derivative at the third (n-2)-th reference point of the input process history consisting of two adders, in which the addend input of the first adder is connected to the output of the multiplexer of the first subtractor, and the augend input is connected to the output of the block of inverters of the second subtractor. With wiring shift of the bus by one bit towards the most significant bits of the adder, the output of the first adder is connected to the second input of the second adder, the first input of which is connected to the output of the multiplexer of the third subtractor, and the output of the second adder of the subunit is the fourth data output of the device.

EFFECT: high quality and accuracy of control in digital dynamic control systems.

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