Patent ID: 8154273

Claim:
A method of analyzing particles in a particle analyzer, the method comprising: preparing a fluid sample containing particles for analysis in the particle analyzer; sensing signals using an electrical or optical measurement device, each of the signals corresponding to one or more events detected in a sub-sample of the fluid sample flowing through a measurement region in the particle analyzer; using measurements of at least one measurement parameter from at least one said measurement device to identify a peak for each of the signals from the at least one said measurement device; using the measurements of the at least one measurement parameter, to identify, for each of the signals, first and second points having a signal value corresponding to a predetermined portion of the identified peak for the signal; and determining the existence of coincident events in the one or more events based on the identified peak and the identified first and second points for each of the signals generating a results data based upon the coincident events and non-coincident events of the one or more events.