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. 04, 2002
Filed:
Dec. 07, 2000
Applicant:
Inventor:
Vincent S. Polkus, Delafield, WI (US);
Assignee:
GE Medical Systems Global Technology Company, LLC, Waukesha, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D 1/800 ;
U.S. Cl.
CPC ...
G01D 1/800 ;
Abstract
An x-ray imaging machine ( ) is calibrated by placing a phantom ( ) between an x-ray tube ( ) and an x-ray detector ( ). The phantom causes a first dimension D and a second dimension D to be projected onto the detector. From the projected dimensions and a physical dimension of the phantom (t), a processor ( ) calculates the focal distance (FD) of the machine, the source image distance (SID) of the machine, and the object-to-detector distance (ODD).