EECS20N: Signals and Systems

Product-Form Inputs and Outputs

Additional structure on input/output alphabets allows for events to be directed to different state machines, so that we can make more interesting compositions.

Input and output alphabets are constructed from the port alphabets:

  • Inputs = InputsA × InputsB
  • Outputs = OutputsA × OutputsB


  • stutter = ( absent, absent )