DIFFERENTIAL SIGNAL TRANSMISSION SYSTEM FOR DETECTING STATE OF TRANSMISSION LINES

摘要

A differential signal transmission system and method for detecting an open state or the short state therein are provided. The differential signal transmission system includes first and second transmission lines; a termination resistance unit between a first node on the first transmission line and a second node on the second transmission line; a first pass unit that controls a first current flowing between a third node connected to a first driving voltage and the first node based on a first control signal; a second pass unit that controls a second current flowing between the second node and a fourth node connected to a second driving voltage based on a second control signal; a measurement unit that measures a voltage level of the first node or the second node to detect an open or short state of at least one of the first transmission line and the second transmission line.

主权项

1. A differential signal transmission system comprising:
a first transmission line and a second transmission line configured to transmit a differential signal; a termination resistance unit connected between a first node on the first transmission line and a second node on the second transmission line; a first pass unit configured to control a first current flowing between a third node connected to a first driving voltage and the first node based on a first control signal; a second pass unit configured to control a second current flowing between the second node and a fourth node connected to a second driving voltage based on a second control signal, wherein a level of the second driving voltage is lower than a level of the first driving voltage; a measurement unit configured to measure a voltage level of at least one of the first node and the second node to detect an open or short state of at least one of the first transmission line and the second transmission line; and a control unit configured to control at least one of a transmission of the differential signal, a connection of the termination resistance unit, a value of the first control signal, and a value of the second control signal.