Switches, manually operable to produce a desired logic signal level, are user assigned to represent the various variable inputs to a Boolean network. Indicators are user assigned to represent the logic state of outputs from the network. Process logic is user programmable to define the Boolean and sequential...http://www.google.fr/patents/US4583169?utm_source=gb-gplus-shareBrevet US4583169 - Method for emulating a Boolean network system
