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:
May. 29, 1984
Filed:
Sep. 04, 1981
Applicant:
Inventor:
Masahiko Konagaya, Kobe, JP;
Assignee:
Konan Camera Research Institute, Hyogo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358289 ; 358280 ;
Abstract
A relative density calculation system, principally and preferably used with a color scanner, for detecting a surrounding frame of a photographic transparency to be scanned to produce signal information for application to the color scanner to be utilized in density correction process to remove the density error caused by the presence of the surrounding frame, the frame detection being effected by scanning the transparency with an infrared-ray beam which can pass the deepest colored portion of the transparency but not the surrounding frame material.