Table 1: Decoding of the output of the counter.

Output:
Sigmoid function pattern

The number of “1” is less than or equal to 1
(the position does not matter).
0001 0000
The number of “1” is equal to 2
(the position does not matter).
00100011
The number of “1” is equal to 3
(the position does not matter).
01001101
The number of “1” is equal to 4.10001111