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:
Jul. 13, 2004
Filed:
Nov. 17, 1998
Applicant:
Inventor:
Akio Tanaka, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/700 ;
U.S. Cl.
CPC ...
H01L 2/700 ;
Abstract
An imaging device includes a plurality of detectors for converting an electromagnetic radiation into electric signals, a first regulated constant-current source for supplying a constant bias current to the detectors, and a second regulated constant-current source connected to the first regulated constant-current source, for correcting variations of the detectors. The second regulated constant-current source is effective for correcting variations of pixels due to variations of amplifying elements.