Patent ID: 8565296
Filing Date: 2013-10-22
Classification: H04L

Abstract:
1. An adaptive receiver system for receiving a reception signal, comprising: an equalizer circuit configured to equalize the reception signal based on a strength adjustment signal representing an equalization strength and output the reception signal after equalization as an equalization signal; a phase comparison circuit including a clock adjustment circuit configured to adjust, based on the first and second phase comparison signals, a phase of the sampling clock such that a phase of the equalization signal and the phase of the sampling clock are coincidence with each other and output the sampling clock; a recoverer configured to output a recovery signal obtained by sampling the equalization signal by using the sampling clock; a pattern detection circuit configured to detect a detection data pattern based on the recovery signal; a determination circuit to which an output signal of the pattern detection circuit is input and which is configured to compare, when the detection data pattern is detected, output patterns of the first and second phase comparison signals with a predetermined comparison target pattern and determine a bit duration of the equalization signal based on whether or not the output patterns and the predetermined comparison target pattern are matched to each other; and an adaptive control filter circuit configured to adjust the strength adjustment signal based on a determination result of the determination circuit.