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. 09, 2010
Filed:
Jul. 27, 2006
Susumu Adachi, Kyoto, JP;
Susumu Adachi, Kyoto, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
A light or radiation image pickup apparatus comprises a first arithmetic unitfor calculating a first arithmetic value by subtracting a first offset signal from a main signal, a second arithmetic unitfor calculating a second arithmetic value which is a difference between a second offset signal and the first offset signal, and a correcting unitfor correcting the first arithmetic value calculated by the first arithmetic unit, by using the second arithmetic value calculated by the second arithmetic unitand corresponding to a period of the same length as a period from the first offset signal to the main signal used in the operation in the first arithmetic unit. The first arithmetic value is corrected to remove noise components due to leakage of charge signals accumulated during the period from the first offset signal to the main signal. It is thus possible to reduce deterioration of image quality due to leaks of charge signals accumulated in X-ray detecting elements(leakage currents) and prevent an extended imaging time.