Patent ID: 11927521
Assignee: JVCKENWOOD CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. An analysis threshold determination method comprising:
an irradiation step of irradiating, with an irradiation light, an analysis substrate having a surface to which a detection target substance and a particle bound to the detection target substance are fixed;
a signal generation step of receiving a reflection light of the irradiation light from the analysis substrate to generate a light reception level signal;
a determination step of determining whether a pulse included in the light reception level signal is present within a range of a pair of thresholds set for a pulse width or determining whether the pulse is present within a range of a pair of thresholds set for a pulse amplitude;
a count value output step of counting the pulse determined to be present within the range of the set pair of thresholds in the determination step, and outputting a count value of the pulse counted;
a threshold generation step of repeatedly generating a new pair of thresholds in which at least one of the pair of thresholds is changed every time the count value Output step counts the pulse until reaching a predetermined value;
a measure of central tendency choice step of choosing a class of a measure of central tendency according to a frequency distribution defining each pair of thresholds generated as a class and the count value output in the count value output step as a frequency; and
a threshold determination step of determining a pair of or plural pairs of thresholds corresponding to a class of a predetermined range from the class of the measure of central tendency as a pair of or plural pairs of thresholds used for analysis.