H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 5/14 (2006.01) H04L 27/00 (2006.01) H04L 29/06 (2006.01)
Patent
CA 2060976
The invention relates to data circuit terminating equipment and method for processing data transmitted between data terminating equipment and a telecommunication line. The equipment includes A/D and D/A converters for respectively, converting the data from an analog form to Pulse Coded Modulation (PCM) words and from PCM words to analog form and a control processor for controlling communication protocols. The method is characterized in that it involves the steps of storing signals provided by a transmit circuit into a first queue and storing into a second queue computer characters derived from the signals stored into said first queue according to a first given transmission protocol either a start-stop, a high level data link control (HDLC) or a binary synchronous communication (BSC) transmission protocol. The method further involves the step of storing into a third queue the characters being provided by a control processor to be transmitted to a remote data circuit terminating equipment via the telecommunication line. The selection of an appropriate transmission protocol, as well as the selection of an appropriate modulation algorithm provides a method for processing data to be transmitted from data terminating equipment to a telecommunication line which allows a large number of configurations without requiring the great number of electronic components which were usually necessary.
Blanc Alain
Gohl-Roux Sylvie
Ungerboeck Gottfried
Barrett B.p.
International Business Machines Corporation
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