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:
Feb. 10, 1976
Filed:
Jul. 01, 1974
Applicant:
Inventor:
Stephen K Campbell, Hialeah, FL (US);
Assignee:
Coulter Electronics, Inc., Hialeah, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; G06M / ;
U.S. Cl.
CPC ...
324 / ; 235 / ; 23515131 ; 328112 ; 328117 ; 328160 ;
Abstract
A method and apparatus are disclosed wherein each particle pulse developed in response to passage of particles in a particulate system through a sensing zone is integrated to develop a first voltage whose amplitude varies in accordance with the number of pulses. The pulses are also integrated to develop a second voltage whose amplitude varies in accordance with the duration and, therefore, the size of all of the particle pulses. The first and second voltages are multiplied together to yield an error corrected voltage representing an error corrected particle pulse count, which is then converted to an error corrected particle pulse count.