1
Bliss Burtt E, Dervan III James T, Griffith Leroy E, Pung Bruce D, Thorpe Robert A, Vogel Norman A: Multiplexed intelligence communications. International Business Machines Corporation, Lieber Robert, March 19, 1974: US3798610 (150 worldwide citation)

Time multiplexed signal communications between a host computer and subordinate data processing terminals include coded and non-coded information. Coded information originated by the host includes entry-separation marker signals. Individual marker signals are used at terminals to control access to as ...


2
Audretsch Jr Leo M, Bliss Burtt E, Dervan III James T, Elsner Matthew, Griffith Leroy E, Thorpe Robert A: Selective polling of terminals via a sequentially coupled broadband cable. International Business Machines Corporation, June 26, 1973: US3742452 (6 worldwide citation)

Multiple terminals linked to one broadband cable in a sequence are interrogated by directionally coupled configuring signals and service polling signals. Configuring signals are utilized to permit selectively participating terminals to order themselves into service polling groups. Service polling si ...