Excavating
Patent
1983-10-03
1986-07-15
Atkinson, Charles E.
Excavating
3701101, G06F 1100, G08C 2500
Patent
active
046010351
ABSTRACT:
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.
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Computer Design, vol. 22, No. 3, Mar. 1983 (Winchester, Massachusetts, US) A. J. Weissberger: "Bit Oriented Data Link Controls", pp. 195-206.
Computer Design, vol. 22, No. 4, Apr. 1983 (Winchester, Massachusetts, US) A. J. Weissberger: "Bit Oriented Data Link Controls--Part II, pp. 137-140.
Data Communications, vol 12, No. 8, Aug. 1983 (New York, US) W. D. Brodd: "HDLC, ADCCP, and SDLC: What's the Difference?", pp. 115-122.
Internation Organization for Standardization, Document Reference No. ISO-6256-1981 (E) entitled "Data Communication--HDLC Balanced Class of Procedures", 1981.
Marzec Richard P.
Schramm George W.
Sharp John B.
Stelte David J.
Tutelman David M.
AT&T Bell Laboratories
AT&T Information Systems
Atkinson Charles E.
Caccuro John A.
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