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:
Sep. 28, 1999
Filed:
Apr. 16, 1997
Kyoji Tamura, Kanagawa-ken, JP;
Yuji Tsuda, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image pickup apparatus includes an image pickup element for picking up an image of a subject and outputting a picked-up image signal, an electronic image magnification enlarging circuit for enlarging an image magnification of the subject by intermittently reading out the picked-up image signal outputted from the image pickup element and varying an image read-out area of an image plane, an exposure control circuit for executing exposure control on the basis of a result obtained by comparing a level of the picked-up image signal with a predetermined reference level, and a correcting circuit for correcting, according to the image magnification of the electronic image magnification enlarging circuit, a no-signal-containing portion produced by an operation of the electronic image magnification enlarging circuit and contained in the picked-up image signal to be supplied to the exposure control circuit.