Token passing type slotted loop network system with means for enabling high speed access control and simple frame slot stripping

Abstract From the Canadian patent

In a token passing slotted loop network comprising a master station and a plurality of slave stations, a plurality of slots circulating through the loop and each of the slots having a fixed length and comprising a header portion and a data carrier portion a particular one of the stations having the token transmitting its own data signal by use of one or more of the slots, the particular station transmits an end mark in the header of a particular one of the slots at an end of transmission of the own data signal and strips incoming slots from a start of the transmission of the own data signal until reception of the end mark circulated through the loop. The particular station frees the token …