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:
Apr. 09, 2002
Filed:
Jun. 29, 2000
Applicant:
Inventor:
Akio Tanaka, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/33 ;
U.S. Cl.
CPC ...
H04N 5/33 ;
Abstract
An imaging device has a control block for offsetting signal levels and controlling the amplification factor for the signal levels within one frame. The imaging device can image a subject having low-illuminance and high-illuminance areas without reduction in the sensitivity, and allows a wide dynamic range and high sensitivity to be achieved real-time. The imaging device thus can image subjects of different illuminance levels ranging from a low-illuminance subject to a high-illuminance subject, and can differentiate small illuminance distributions.