Radiant energy – Invisible radiant energy responsive electric signalling – Semiconductor system
Reexamination Certificate
2006-07-27
2010-02-09
Porta, David P (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Semiconductor system
C378S098800
Reexamination Certificate
active
07659518
ABSTRACT:
A light or radiation image pickup apparatus comprises a first arithmetic unit50for calculating a first arithmetic value by subtracting a first offset signal from a main signal, a second arithmetic unit51for calculating a second arithmetic value which is a difference between a second offset signal and the first offset signal, and a correcting unit52for correcting the first arithmetic value calculated by the first arithmetic unit50, by using the second arithmetic value calculated by the second arithmetic unit51and 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 unit50. 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 elements11(leakage currents) and prevent an extended imaging time.
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International Search Report for the Application No. PCT/JP2006/314892 mailed Oct. 31, 2006.
Cheng Law Group PLLC
Porta David P
Shimadzu Corporation
Taningco Marcus H
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