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:
Jan. 29, 1991
Filed:
Jun. 13, 1989
Warren Whitesel, Tokyo, JP;
Akiyoshi Kohno, Tokyo, JP;
NEC Corporation, , JP;
Abstract
A controlling method for a charge-coupled device according to the present invention decreases the amount of ineffectual electric charges by applying a photo shield film over photo sensing elements or a semiconductor substrate with a certain voltage level, then accumulating effectual electric charges in the presence of an optical radiation into the photo sensing elements in applying a different voltage level to the photo shield film for promoting the production of the effectual electric charges while the reduced ineffectual electric charges are swept into the overflow drain, then transferring the effectual electric charges to the multiple-stage horizontal shift register.