A data communication method and circuitry which uses a compatible subset of a standard high level data link control (HDLC) protocol to control link level communication between a digital terminal and a switch. The use of the subset of HDLC protocol reduces the complexity of the digital terminal design while maintaining communication compatibility with a switch which uses either the standard HDLC protocol or the subset of HDLC protocol.
申请公布号
US4601035(A)
申请公布日期
1986.07.15
申请号
US19830538158
申请日期
1983.10.03
申请人
AT&T BELL LABORATORIES;AT&T INFORMATION SYSTEMS
发明人
MARZEC, RICHARD P.;SCHRAMM, GEORGE W.;SHARP, JOHN B.;STELTE, DAVID J.;TUTELMAN, DAVID M.