Data communication method and circuitry

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3701101, G06F 1100, G08C 2500

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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.

REFERENCES:
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patent: 4432090 (1984-02-01), da Silva
patent: 4439859 (1984-03-01), Donnan
patent: 4507782 (1985-03-01), Kunimasa et al.
patent: 4512016 (1985-04-01), Fulcomer, Jr. et al.
patent: 4512017 (1985-04-01), Nici et al.
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.

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