In______ schemes, the voltagesare on the both sidesof the time axis. Forexample, thevoltage level for 0 can bepositive and thevoltage level for
1 can be negative.
A)
polar
B)
bipolar
C)
unipolar
D)
all of theabove
1 can be negative.
A)
polar
B)
bipolar
C)
unipolar
D)
all of theabove