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. 12, 2005
Filed:
Nov. 17, 2000
Wan-soo Kim, Seoul, KR;
Wan-soo Kim, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A convergence measuring apparatus and a measuring method thereof. The apparatus for measuring a convergence includes: a first camera for obtaining the certain pattern formed on the cathode ray tube; a light path dividing section for processing the certain pattern formed on the cathode ray tube into separate left and right stereo images; a second camera for obtaining the stereo images processed by the light path dividing means; an estimating section for estimating the position and posture of the certain pattern based on the stereo images obtained through the second camera; and a controlling section for measuring the convergence of the image obtained by the first camera, while compensating the convergence based on the estimated position and posture of the cathode ray tube. Further, the method for measuring the convergence includes the steps of: forming the certain pattern on the cathode ray tube; calculating the convergence by obtaining the certain pattern formed on the cathode ray tube by the first camera; obtaining the certain pattern formed on the cathode ray tube as a stereo image through the second camera; estimating the position and posture of the cathode ray tube based on the stereo images; and compensating the convergence by including the estimated position and posture of the cathode ray tube in the calculation of the convergence.