Local area network with biasing arrangement for facilitating access contention between work stations connected to a common bus
摘要
A local area data distribution system includes a plurality of data processing stations connected to a common bus. Individual data processing stations contend with each other for access to the bus while the bus is held at a predetermined and controlled but overridable logic state by applying their priority code bit by bit to the bus and comparing the logic state of the bus with the bit they are applying thereto. A biasing arrangement holds the bus at the predetermined and controlled logic state during the contention interval at a signal level that may be easily overridden by an output of any one of the individual data processing stations.
申请公布号
US4841295(A)
申请公布日期
1989.06.20
申请号
US19860890260
申请日期
1986.07.24
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY, AT&T BELL LABORATORIES
发明人
DELANEY, ROBERT H.;KALMANEK, JR., CHARLES R.;RESTRICK, III, ROBERT C.