Method of bit rate de-adaption using the ECMA 102 protocol

Details Method of bit rate de-adaption using the ECMA 102 protocol Method of bit rate de-adaption using the ECMA 102 protocol

1990-11-19

1993-07-06

Fleming, Michael R.

Multiplex communications

Wide area network

Packet switching

395250, 370 84, 375 7, 3642222, 3642601, 3642393, 3642604, 3642606, 364239, 3642391, 364DIG1, G06F 300, H04J 322

Patent

active

052261212

ABSTRACT:
A method of bit rate de-adaption between an adapted data rate and a user data rate using the ECMA 102 protocol. The user data is transmitted from a data adapter to a user terminal at a first data rate, the adapted data is received by the data adapter at a second data rate, and the second data rate is greater than the first data rate. The adapted data contains a start element and a plurality of data elements while the user data contains a start element and at least one stop element. The method involves the steps of: (1) Receiving the adapted data at the second data rate; (2) Converting the adapted data into a frame; (3) Storing the frame in a receiver buffer; (4) Dissecting the frame into an intermediate data; (5) extracting the plurality of data elements from the intermediate data; (6) Storing the plurality of data elements in a transmit buffer; (7) Converting the first plurality of data elements to the user data by adding the second start element and the at least one stop element; and (8) Transmitting the user data to the user terminal at the first data rate.

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patent: 4823312 (1989-04-01), Michael et al.
patent: 4839792 (1989-06-01), Iijima et al.
patent: 4939724 (1990-07-01), Ebersole
patent: 4953180 (1990-08-01), Fieshi et al.
patent: 4965793 (1990-10-01), Polzin et al.

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