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:
Apr. 29, 1980
Filed:
Mar. 29, 1978
Applicant:
Inventor:
Otto Hofmann, Kirchstockach, DE;
Assignee:
Messerschmitt-Bolkow-Blohm GmbH, Munich, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ; H04N / ;
U.S. Cl.
CPC ...
364571 ; 250209 ; 358163 ; 364525 ;
Abstract
The analog output signals of a photoelectric image converter or transducer are passed through an analog-to-digital converter and then corrected to take various irregularities of the optical sensor elements of the transducer into account. A reference signal and a dark signal are subtracted from the individual image point signals. The difference is then multiplied by a factor representing the slope of the characteristic response curve of the respective optical sensor element. The so corrected signal may be used for further processing or it may be subjected to a further correction operation.