A relay device for data between communication cables having a signal line in full duplex communication, includes: communication units connected to the communication cables; and a main controller executing a relay process of the data. Each communication unit includes: an input/output unit of an analog signal; an analog/digital converter converting the analog signal into a digital signal; a generator generating another digital signal based on another analog signal input to another communication unit; and an echo canceller calculating a filter coefficient based on the other digital signal and the digital signal, and executing a cancellation process of removing a component derived from the other digital signal from the digital signal according to the filter coefficient. The communication unit or the main control unit includes a sign determination unit determining based on a time change of the filter coefficient whether a sign of disconnection exists in the signal line.
Relay device for relaying data between communication cables
22.10.2019
Patent
Elektronische Ressource
Englisch
SYSTEM FOR RELAYING COMMUNICATION, COMMUNICATION RELAY DEVICE, AND GATEWAY STATION
Europäisches Patentamt | 2024
|Relay device, system, and method for relaying messages between vehicles
Europäisches Patentamt | 2020
|VIDEO RELAY SYSTEM AND METHOD FOR RELAYING VIDEO CONTAINING TELEMETRY DATA
Europäisches Patentamt | 2024
|