公开(公告)号：DE2304266A1

公开(公告)日：1973-11-15

申请号：DE2304266

申请日：1973-01-30

Applicant: IBM

Inventor： DIXON ROY CONRAD ,  HASH LARRY JOSEPH ,  MARKOV JAMES DONOVAN ,  WEST LYNN PARKER

IPC: G06F13/00 ,  G06F13/372 ,  G06F13/38 ,  H04L12/423 ,  G06F3/04

Abstract: Bidirectionally communicating terminals are connected to a serial loop by interfaces which provide no delay. Communications are effected in fixed length time slots which include an indicia of the state of the slot. Slots carrying data to a terminal have the state indicia set to value which indicates that the slot is in use. At the receiving terminal, the indicia is retained in the state if the terminal is to use the slot for transmitting data. If the receiving terminal has no data to send, the state indicia is reset to a different value. In the reset state, the slot is available to subsequent terminals for the transmission of data.

公开(公告)号：DE2345417A1

公开(公告)日：1974-04-11

申请号：DE2345417

申请日：1973-09-08

Applicant: IBM

Inventor： DIXON ROY CONRAD ,  HASH LARRY JOSEPH ,  MARKOV JAMES DONOVAN

IPC: G06F13/00 ,  H04L12/423 ,  H04L11/06