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:
Dec. 09, 2003
Filed:
Mar. 18, 1996
Hiroki Horikoshi, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image input apparatus reliably detects occurrence of an error in the receiving of a plurality of image signals for obtaining a high-resolution still image, and prevents time loss caused by meaningless processing in a later stage of processing. By performing pixel shifting control of a lens unit by a lens control unit, a plurality of image signals are produced from an image of an object by an image pickup unit, and are stored in a memory unit. Thereafter, the lens unit is returned to its original position. A calculation unit compares an image signal produced again at that time with the image signal stored in the memory unit, and an invalidity determination unit determines validity/invalidity of the stored image signals. When it has been determined that the stored image signals are invalid, the data stored in the memory unit is cancelled. A plurality of image signals are reinput from the image pickup unit and are stored in the memory unit.