ALTERNATE MARK INVERSION

Communications Systems Glossary

Communications Systems — Line coding — Alternate mark inversion

 

 

 

 

 

 

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Information on Alternate Mark Inversion (AMI)

Alternate mark inversion (AMI) is a digital transmission technique in which binary values are sent by three voltage states. A logical "0" is represented by 0 volts, and a logical "1" is represented by either a positive voltage or a negative voltage so that each alternate "1" is represented by a voltage level that is the opposite of that which represented the previous "1". The result is a digital waveform that has zero DC voltage on the line.


Other topics in our resources on Communications Systems related to Alternate mark inversion include: 
 
  • Pulse code modulation (PCM)
  • Pulse duration modulation (PDM)
  • Pulse amplitude modulation (PAM)
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  • Pulse length modulation (PLM)
  • Delta modulation
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  • Pulse position modulation (PPM)
  • Pulse width modulation (PWM)

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