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:
Dec. 03, 1996
Filed:
Sep. 20, 1994
Applicant:
Inventors:
Assignee:
NeoPath, Inc., Redmond, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
382128 ; 382312 ;
Abstract
An automated apparatus for checking cytological system image collection integrity in an automated cytological system including an imaging apparatus controlled by a digital processor. The automated apparatus includes linearity checking apparatus, coupled to the imaging apparatus and the digital processor. System frequency response is checked using a modulation transfer function, where the sampling frequency may be determined by pixel size so as to allow the MTF to be determined beyond the sampling frequency of a system detector. A system signal to noise ratio is also checked for specific regions of the frequency spectrum.