| 摘要 |
PROBLEM TO BE SOLVED: To provide a sequence discrimination circuit with a simple configuration without the need for employing many magnitude correlation devices. SOLUTION: Comparators 801-1-13 discriminate the magnitude of received signals by each sequence, a sequence discrimination decoder 803 discriminates the presence of the input signal as to each sequence on the basis of output signals from the comparators 801-1-13, and in the case that the presence of the input signals for 5 sequences or over is discriminated due to misdetection, the decoder 803 outputs information denoting the presence of the input signals as to the 4 sequences in the younger order. Then a 1st cross point switch 804 gives each absolute value of the 4 sequences whose input signal is discriminated to be present to the 4 sequence maximum value detection circuit 805 on the basis of the output from the sequence discrimination decoder 803 and a 2nd cross point switch 806 receiving output signals from 4-sequence maximum value detection circuits 805 brings wires corresponding to the 4 sequences whose input signal presence is discriminated to a logical high level. |
