Patent ID: 7508872
Filing Date: 2009-03-24
Classification: H04L

Abstract:
1. A serial transfer interface which corrects distortion of a signal waveform using a filter characteristic, latches the signal waveform according to a synchronous clock, and outputs the waveform to a subsequent circuit, comprising: a filter characteristic adjustment unit changing the filter characteristic; a clock generation unit capable of changing a phase of the synchronous clock; and a pattern discrimination unit changing the filter characteristic and the phase of the synchronous clock in respective predetermined ranges when a test pattern as a test signal is input, designating an optimum filter characteristic and phase of the synchronous clock in the respective ranges of the filter characteristic and phase of the synchronous clock in which the test pattern can be received, and changing the characteristic and the phase to the optimum filter characteristic and phase of the synchronous clock using the filter characteristic adjustment unit and the clock generation unit.