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. 17, 2004
Filed:
Aug. 31, 2001
Applicant:
Inventors:
Daniel Gagnon, Twinsburg, OH (US);
Jerome J. Griesmer, Kirtland, OH (US);
Assignee:
Koninklijke Philips Electronics, N.V., Eindhoven, US;
Primary Examiner:
Int. Cl.
CPC ...
A61B 6/00 ;
U.S. Cl.
CPC ...
A61B 6/00 ;
Abstract
A nuclear imaging apparatus includes a radiation detector comprising an array ( ) of solid state detector elements ( ) responsive to incident gamma radiation by emitting a current spike. A pixel correction processor ( ) detects defective detector elements in the array and a flood correction circuit ( ) corrects detected radiation events ( ) based on sensitivity differences between a plurality of groupings of detector elements in the array. A reconstruction processor ( ) reconstructs an image representation from the corrected radiation events ( ).