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:
Jan. 06, 2015
Filed:
Apr. 17, 2012
Robert E. Alvarez, Mountain View, CA (US);
Robert E. Alvarez, Mountain View, CA (US);
Other;
Abstract
An apparatus or method for providing information about an object from x-ray radiation transmitted through the object. An embodiment comprises an x-ray source () positioned on one side of an object () an x-ray detector () positioned on the opposite side, and means for computing two or more information signals, which are substantially the line integrals of the basis set coefficients of the x-ray attenuation coefficient from the x-ray photons transmitted through said object at three or more regions of the x-ray energy spectrum. In one embodiment the means for computing the two or more information signals comprises a linear maximum likelihood estimator (), a correction processor () to compute a correction to the linear maximum likelihood estimate (), and an adder () to add the estimate and the correction to produce the two or more information signals ().