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:
Jul. 02, 1991
Filed:
Oct. 14, 1988
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
A device for measuring convergence of color cathode ray tube including means for producing a white measurement pattern on a viewing screen of the color cathode ray tube, a color image pickup device for picking up the white measurement pattern on the viewing screen, a memory unit for storing color signals transmitted from the color image pickup device, a discrimination unit for discriminating which of blue, green, and red phosphors glows every picture elements of the color image pickup device based on signals from adjacent picture elements, and a calculation unit for a finding out a misconvergence from discriminated results assures an accurate convergence measurement by one time of image pickup only.