Fuji Xerox DocuPrint M355df

Chapter 10 Principle of Operation
10.1 Telephone System
10-4
KjA10002XA
01101000
0
0
1
1101000
Analog signal
Digital signal
Voltage
Time
Voltage
Time
Voltage
Time
The signal is converted to 1 or 0 depending on
whether it is higher or lower than a threshold value.
In other words, the waveform is quantified.
Threshold value
Higher = 1
Lower = 0