COMMUNICATION DEVICE USING MULTI-LEVEL LINE CODING METHOD

摘要

The device ensures a multi-channel utilizing method using a single channel by transmitting the multi-level line coded PCM signal. The device includes; (a) PCM encoding and decoding circuit which modulates the analog signal into the pulse signal according the channel separation signal of a counter (4) and the dividing signal of a divider (3); (b) line coder (2) which translates the PCM data into the line coded data; and (c) receiving and transmitting signal matching circuit (5) which amplifies the line coded data and differentially amplifies the received signal from other communication device.