Patent ID: 7954076
Filing Date: 2011-05-31
Classification: G01R

Abstract:
1. A transmission delay analyzing apparatus that analyzes a delay of a signal which is transmitted from a transmitting circuit to a receiving circuit via a predetermined first transmission line included in a plurality of transmission lines connecting the transmitting and receiving circuits, comprising: a first acquisition section that acquires a noise waveform from among waveforms which propagate in the first transmission line and are acquired by the receiving circuit; a first calculation section that calculates a noise peak level which is the peak level of the noise waveform acquired by the first acquisition section; a second acquisition section that acquires a signal waveform free from noise from among the waveforms which propagate in the first transmission line and are acquired by the receiving circuit; and a second calculation section that calculates a delay variation of the transmitted signal based on the signal waveform acquired by the second acquisition section, a threshold for determining the level of a signal that the receiving circuit receives from the first transmission line, and the noise peak level calculated by the first calculation section.