Antonelli, Terry & Wands
Data transmission control method and apparatus
 In a system which includes of subsystems, and a transmission medium for coupling them, and in which a token is sent to the transmission medium, whereby the transmission medium is occupied; a transmission control method characterized, at least, in that each of the certain subsystems appends a code indicative of a function of certain data to the token and sends the resulting data to the medium, and that the subsystem receiving the data refers to the code indicative of the function of the data, thereby to independently judge whether or not the data is to be accepted into the own subsystem. 
Hitachi, Ltd.
H
H04L
inventional
Katsumi Isao Yasuo Kozo Kinji Minoru Hirokazu Masayuki
Kawano Wachi Suzuki Nakai Mori Koizumi Kasashima Orimo