1. A digital 1-bit wide abstractor for generating an exemplary pattern from a digital input information E, the abstractor comprising an evaluation unit which performs a transfer function p and to whose input the digital input information E is fed, with the transfer function p being given by ##EQU7## the abstractor further comprising: a first decision unit having a first input which is connected with an output of the evaluation unit, a second input to which the digital input information E is fed, and third and fourth inputs to which a first predeterminable set value F.sub.max and a second predeterminable set value F.sub.min, respectively, are fed, with the first decision unit implementing an activation state z according to an activation function F, where ##EQU8## and F (z.sub.old, p(n)) is the new state while z.sub.old is the old state of the abstractor, the first decision unit providing at an output thereof an output information according to an output function f where ##EQU9## wherein: the first decision unit includes an adder unit whose first input is connected with the output of the evaluation unit, whose second input is connected with a first register and whose output is connected with a first input of a first comparison unit; a second input of the first comparison unit is connected with a second register in which the second set value F.sub.min is stored; the larger of the two values present at the two inputs of the first comparison unit is always output at an output of the first comparison unit and is fed to a first input of a second comparison unit; a second input of the second comparison unit is connected with a third register in which the first set value F.sub.max is stored; the smaller of the two values present at the inputs of the second comparison unit which constitutes the activation state z is always output at an output of the second comparison unit; the output of the second comparison unit is connected with the first register and with a first input of a third comparison unit; the digital input information E is fed to a second input of the third comparison unit; and the output information is output at an output of the third comparison unit according to the output function f.