Patent ID: 8374107
Filing Date: 2013-02-12
Classification: H04B

Abstract:
1. A communication apparatus, comprising: a power supply unit that acquires a voltage from a transmission line connected from outside; a transmission control unit that transmits a data signal and a pilot signal placed at a start of the data signal to the transmission line; a pilot signal detection unit that detects pilot signals transmitted to the transmission line by other apparatuses; and a timing adjustment unit that adjusts transmission timing of the pilot signal of the communication apparatus in accordance with transmission timing of the pilot signals transmitted by the other apparatuses, when the pilot signal detection unit detects the pilot signals transmitted by a plurality of the other apparatuses, the timing adjustment unit outputs the pilot signal of the communication apparatus toward a center of variations of the transmission timing of a plurality of the detected pilot signals, and when the pilot signal detection unit detects the plurality of pilot signals when newly starting communication, the timing adjustment unit outputs the pilot signal of the communication apparatus toward the center of variations of the transmission timing of the plurality of the detected pilot signals.