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:
Aug. 03, 1999
Filed:
Mar. 06, 1996
Hitoshi Nomura, Kawasaki, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A solid-state image pickup device which enables an improvement in the S/N ratio of the video signal. The solid-state image pickup device has a current sample-and-hold means which stores either a current signal consisting of a first component which is responsive to the sum of the incident light and the dark output from a plurality of pixels at separate times or a current signal consisting of a second component which is responsive to the dark output, and a means for the purpose of sequentially reading out, to a horizontal read line, only a current signal consisting of a component that is responsive to the amount of incident light, this being obtained by means of a subsequent subtraction performed between the other of the first-component and second-component current signals and the current signal which has already been stored in the current sample-and-hold means.