Patent ID: 8369342
Filing Date: 2013-02-05
Classification: H04L

Abstract:
1. A network extending apparatus with power supply, connecting with another network extending apparatus, in which the network extending apparatus and the another network extending apparatus are respectively set as a local network extending apparatus and a remote network extending apparatus, the network extending apparatus comprises: a processing unit for converting a format of data packages between a first communication protocol and a second communication protocol, in which the second communication protocol is a symmetric communication protocol; at least one signal and power integration unit coupling with the processing unit, in which the at least one signal and power integration unit is for integrating electrical power and signals, so that electrical power and signals are transmitted together; a power supply unit coupling with the at least one signal and power integration unit, in which the power supply unit is for providing electrical power to the at least one signal and power integration unit; at least one signal and power connection interface coupling with the at least one signal and power integration unit, in which the at least one signal and power connection interface is for connecting to an electrical device, and for transmitting electrical power and signals; a symmetric transmission control unit coupling with the processing unit, in which the symmetric transmission control unit is for keeping transmission rates in both directions symmetric, according to the second communication protocol; and a transmission rate regulation unit coupling with the processing unit, being chosen as a local transmission rate regulation unit when the network extending apparatus being set as the local network extending apparatus, or being chosen as a remote transmission rate regulation unit when the network extending apparatus being set as the remote network extending apparatus; wherein the local transmission rate regulation unit transmits an initial signal to the remote transmission rate regulation unit, the remote transmission rate regulation unit measures a signal characteristic of the initial signal and sends the signal characteristic to the local transmission rate regulation unit, so that the local transmission rate regulation unit determines a value of a local data transmission rate according to the signal characteristic, and the remote transmission rate regulation unit determines a value of a remote data transmission rate according to the signal characteristic.