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.

Date of Patent:
Aug. 20, 1996

Filed:

Aug. 31, 1992
Applicant:
Inventor:

Tokihiro Kosaka, Kakogawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ;
U.S. Cl.
CPC ...
356 73 ; 356 39 ;
Abstract

A particle analyzer comprising a one-dimensional image sensor for producing imaging signals by scanning a particle in a flow of specimen containing particle components such as blood and urine in a flat sheath flow thin in thickness in the light emitting direction and broad in the direction orthogonal to the light emitting direction, and a signal processing device for processing the signals and operating on the basis of the imaging signals from the one-dimensional image sensor. A particle analyzer excellent in analyzing capability for obtaining morphological information of particles in the liquid specimen flowing in a flow cell in real time is presented. Besides, by emitting light to a flowing particle, the transmitted light image is focused on the one-dimensional image sensor (line sensor), and the detected image signal from the line sensor is further processed in detail in the signal processing device. The signal processing device comprises a background correction processing circuit, a binarizing processing circuit, a binary signal processing circuit, a particle region division processing circuit and an arithmetic circuit. A particle analyzer high in analyzing capability for obtaining the absorption quantity and morphological information of individual particles in the liquid specimen flowing in a flow cell in real time is presented.


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