The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 12, 1990
Filed:
Feb. 01, 1988
Adrian Lorenz, Zurich, CH;
Contraves AG, Zurich, CH;
Abstract
The apparatus for analyzing particles in a particle containing fluid, especially pretreated liquids containing blood samples, contains storage devices and computing sections for determining separation threshold values and the particle distribution as a function of a pretermined particle parameter. The separation threshold values are determined on the basis of measured values of the predetermined particle parameter arranged in individual histograms containing at least two particle population maxima and minima. At least one particle population minimum is determined using an adaptive method. For insufficiently distinct particle population minima, there is first determined, on the basis of histograms containing corresponding distinct particle population minima and maxima, a characteristic difference quotient: ##EQU1## The separation threshold value associated with the insufficiently distinct particle population minimum is determined on the basis of the characteristic difference quotient according to: