Patent ID: 6980210

Claim:
A coherence detector having a number of n signal inputs (EST i (1<=I<=n); E 1 , E 2 , E 3 , E 4 ), to which one input signal value each is applied, comprising in operative combination: (a) a first sorting device (S 1 ) for sorting of the n input signal values (E 1 , . . . , E 4 ) according to their value (A, B, C, D) and for parallel output of the n-sorted values; (b) a number of n−1 subtracting devices (“−”) for subtraction of two neighboring, sorted values ((D−C), (C−B), (B−A)); (c) a second sorting device (S 2 ) for sorting of the obtained n−1 differences ((D−C), (C−B), (B−A)) with regard to their value and for output of the smallest determined difference value (“<<”); (d) a selection device (“=”, MUX 1 ) which outputs the value pair of the input signal values belonging to the smallest determined difference value (“<<”); and (e) an output device (“Σ/2”) to which the output value pair is sent, and which outputs an average value (KE).