Patent ID: 8130383
Filing Date: 2012-03-06
Classification: G01N

Abstract:
1. An optical signal analysis apparatus comprising: a photodetector to detect light emitted from measurement points in a sample; and an analyzer to analyze a molecular interaction between two of the measurement points by using fluctuation signals corresponding to fluctuations of the light from the measurement points that are detected by the photodetector, the analyzer calculating sum of data and sum of products between data, counting the number of times of sum-of-product calculation at each of the measurement points, and performing auto-correlation calculation and inter-point cross-correlation calculation based on the calculation results for each of the measurement points; wherein the analyzer divides a time-serially measured data obtained by repeatedly measuring two of the measurement points into a data table and a weighting coefficient table at each measurement point, sets a calculation channel for data and weighting coefficient based on an octave method and analyzes a movement vector of a molecule between two points by estimating at least an inter-point cross-correlation.