Patent ID: 6072826
Filing Date: 2000-06-06
Classification: H04L,H04M

Abstract:
In a telecommunications system having a plurality of subscriber stations interconnected along a communications path, apparatus disposed at individual ones of the stations for transceiving an input digital bit stream converted into a corresponding digitally modulated output signal, comprising in combination:an encoder having a control terminal, a first input terminal to which a source of digital data is connected and a first output terminal connectable to the path for communicating an encoder generated digitally modulated output signal to a remote station on the path;a demodulator having a second input terminal to which a received digitally modulated signal is selectively coupled from the path and a second output terminal at which a demodulated signal comprises a bit stream of digital data;a directional switch connected to the control terminal for selectively enabling and disabling the encoder and switching a connection to the path from respective ones of the first output terminal and the second input terminal in response to control signals input to the switch;means for resolving contention between call initiating stations and identifying a station seizing the path as a master station; andcontrol means connected to the switch for enabling a switched connection from the first output terminal to the path and enabling the encoder of the master station with a start-up time delay prior to transferring digital data thereto.