Patent ID: 7865169
Filing Date: 2011-01-04
Classification: H04B

Abstract:
1. A power line telecommunication system having a transformer with a primary side connected to power lines that supply power from outside and a secondary side connected to a two-wire power line with neutral line, and carrying out a power line telecommunication using the two-wire power line with neutral line, comprising: a base station comprising: a terminal station comprising: and wherein when an uplink is performed from the terminal station to the base station in the power line telecommunication, when a downlink is performed from the base station to any one of the terminal stations in the power line telecommunication, wherein said unit for separating a synchronous signal comprises a unit for performing an estimation by utilizing a parametric model, thereby extracting a synchronization-use marker signal superimposed, by a predetermined chip width, on a voltage signal or current signal that is said information signal, and making the extracted a synchronous signal.