Patent ID: 7936845
Filing Date: 2011-05-03
Classification: H04L

Abstract:
1. An apparatus for setting signal correction magnitude for a signal transmitting device where a plurality of communication device pairs are provided and each of the pairs is connected by one of signal transmission channels, the apparatus setting correction magnitudes of a signal transmitted via each of the signal transmission channels, the apparatus comprising: a memory that stores equal-length group data obtained by grouping together equal-length signal transmission channels from among the signal transmission channels, the equal-length signal transmission channels being of equal length; an error detecting unit that acquires error rates of a specified one of the signal transmission channels while changing the correction magnitudes of the signal; and a control unit that retrieves correction magnitudes based on the error rates acquired by the error detecting unit, selects a signal transmission channel having the same length as that of the specified signal transmission channel based on the equal-length group data stored in the memory, and sets the retrieved correction magnitudes of the specified signal transmission channel as the correction magnitudes of the signal transmitted via the selected signal transmission channel.