Patent ID: 9160483
Filing Date: 2015-10-13
Classification: H04B,H04L

Abstract:
1. A signal transmission device that transmits and receives communication frames to/from a partner device through a transmission line, each of the communication frames having a header bit field, a data bit field, and a frame check sequence (FCS) bit field, the signal transmission device comprising: a mode separator circuit that separates a transmission signal transmitted from the transmission line into differential mode components and common mode components; an analog detector circuit that detects in real-time, from the common mode components of the transmission signal separated by the mode separator circuit, impulse noises having been applied to the transmission line; a noise counter that counts the impulse noises detected by the detector circuit and observes occurrence intervals of the impulse noises; and a data length changer that varies a length of the data bit field in the communication frames in proportion to a duration of the occurrence intervals of the impulse noises observed by the noise counter.