Method and system for automatically determining data communicati

Details Method and system for automatically determining data communicati Method and system for automatically determining data communicati

1992-05-21

1996-02-13

Tse, Young T.

Pulse or digital communications

Transceivers

Modems

375225, 370 79, 370 84, 370 8513, H04B 138

Patent

active

054917204

ABSTRACT:
A method and system in a data communications system for automatically determining a data communication device type and a transmission speed associated with the data communication device type. An incoming communication is detected on a transmission line, and transmit and receive hardware are connected to the transmission line. Next, a sequence of different signals in either a first communication protocol or a second communication protocol are transmitted from a first data communication device via a transmission line. The transmission line is then monitored for a response signal from a second data communication device. The response signal is initiated from the second data communication device in response to receipt of a particular signal within the transmitted sequence of different signals. Utilizing the relationship between the response signal and the transmitted sequence of different signals, a data communication device type and transmission speed are determined, and data communications may then be established between the first data communication device and the second data communication device at an optimal transmission speed.

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IEEE International Conference on Communication, Bostonicc/89 Jun. 11-14, Boston, MA., pp. 1101-1105, "Detection of Modem Type and Bit Rate of FSK Voiceband Data Signals".

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