___________ conversion involves three techniques: line coding, block coding, and scrambling.

In _____, the level of the voltage determines the value of the bit.

In ______, the change or lack of change in the level of the voltage determines the value of the bit.

The idea of RZ and the idea of NRZ-L are combined into the ________ scheme.

The idea of RZ and the idea of NRZ-I are combined into the ________ scheme.

In Manchester and differential Manchester encoding, the transition at the middle of the bit is used for __________.

The _____ scheme uses data patterns of size 2 and encodes the 2-bit patterns as one signal element belonging to a four-level signal.

Which encoding method uses alternating positive and negative values for 1s?

Block coding can help in _______ and _________ at the receiver.

________ is normally referred to as mB/nB coding; it replaces each m-bit group with an n-bit group.

Two common scrambling techniques are ________.

The most common technique to change an analog signal to digital data is called __________.

The first step in PCM is ________.

______ finds the value of the signal amplitude for each sample; ____ finds the change from the previous sample.