Pu1(5)St0(6)St0(6)
Su1(7)
La1(4)Su1(7)
Figure28-3—Combining unequal strengths
We1We0WeX
Figure28-4—Combination of signals of equal strength and opposite values
Figure28-2—Scale of strengths
7654321076543210strength0strength1
HiZ0Sm0Me0We0La0Pu0St0Su0HiZ1Sm1Me1We1La1Pu1St1Su1