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. 13, 1983
Filed:
Nov. 02, 1981
Applicant:
Inventor:
William J Hannan, Concord, MA (US);
Assignee:
Itek Corporation, Lexington, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ; H04N / ;
U.S. Cl.
CPC ...
358209 ; 358206 ; 358213 ; 358227 ;
Abstract
An imaging system with an enlarged depth of field for use with a means for focusing an image, including: means for sensing an image sample from each of a plurality of portions of the image at each of a plurality of optical distances from the means for focusing; means for determining the relative focus of the image samples derived from a portion of the image at each of the plurality of distances; and means responsive to the means for determining for choosing, for each of the plurality of portions of the image, the image sample having a desired focus.