Abstract: An inverse control system is disclosed, which comprises FIR filters provided between transmitting elements at n (n=2, 3, . . . ) input points of a linear FIR system and a common signal source, for an inverse control such as to provide desired impulse responses between the signal source and m (n>m) output points of the linear FIR system. A j-th (j=1, 2, . . . , n) one of the FIR filters has a number L.sub.j of taps which satisfies the relationships represented by ##EQU1## for all i=1, 2, . . . , m and j=1, 2 . . . , n where w.sub.ij is the number of discrete signals representing the impulse response g.sub.ij (k) between the j-th output point and i-output point and P.sub.i is the number of discrete signals representing the desired impulse response r.sub.i (k) between the signal source and i-th output point. The j-th FIR filters has a filter coefficient h.sub.j (k) satisfying the relationship ##EQU2## where .circle.* is a discrete convolution.

Abstract: A circuit arrangement for linearizing the output signal of a measuring sensor by comparing this output signal with a periodically repetitive signal which represents the measurement characteristic to be linearized. Upon equality of the compared signals, the instantaneous value of a periodically repetitive second signal, which is a linear function of time, is transmitted to form the linearized measurement signals. According to a preferred embodiment, the periodically repetitive signals are produced by digital devices.