Patent ID: 8416442
Filing Date: 2013-04-09
Classification: H04L,H04N

Abstract:
1. A communication system comprising: a transmitter section that transmits a signal having a predetermined waveform; a plurality of receiver sections that receive the signal via signal transmission paths; a physical quantity measuring section that measures a physical quantity of the signal transmission path for each of the plurality of receiver sections, based on the transmission time of the signal from the transmitter section to the reception section; a correction section that corrects a signal received via the signal transmission path such that the signal received has the predetermined waveform, and corrects a signal transmitted from the transmitter section and outputs the signal to the signal transmission path such that the signal for output has the predetermined waveform; a setting section that sets, in the correction section, at least one of, a correction amount in accordance with the physical quantity for correcting a signal received via the signal transmission path, and/or a correction amount in accordance with the physical quantity for correcting a signal transmitted from the transmitter section and outputting to the signal transmission path; and an error measurement section that measures error of the signal received by the receiver section, wherein the setting section derives, as a standard correction amount, a correction amount corresponding to a given receiver section from the plurality of receiver sections based on error measured by the error measurement section in a signal received by the given receiver section, and the setting section derives a correction amount corresponding to another receiver section other than the given receiver section based on the standard correction amount and on a difference between the physical quantity corresponding to the given receiver section and the physical quantity corresponding to the other receiver section.