Invention Grant
- Patent Title: Method and apparatus for calibrating a mark verifier
- Patent Title (中): 用于校准标记检验器的方法和装置
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Application No.: US11639384Application Date: 2006-12-14
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Publication No.: US08169478B2Publication Date: 2012-05-01
- Inventor: Sateesha Nadabar , Venkat K. Gopalakrishnan
- Applicant: Sateesha Nadabar , Venkat K. Gopalakrishnan
- Applicant Address: US MA Natick
- Assignee: Cognex Corporation
- Current Assignee: Cognex Corporation
- Current Assignee Address: US MA Natick
- Agent Michael A. Jaskolski
- Main IPC: G06F13/00
- IPC: G06F13/00

Abstract:
A method for calibrating a mark quality verifier assembly wherein the assembly includes a camera including a camera field of view (FOV) and a processor for running software programs that are stored in a memory that is accessible to the processor, the method comprising the steps of providing a calibration program in the memory that is accessible by the processor, providing a calibration code on a surface of a calibration tool wherein the calibration code includes calibration information, positioning the calibration tool adjacent the camera so that the calibration code is within the FOV, obtaining at least one image of the calibration code via the camera, using information in the calibration code to determine that a verifier calibration process should be performed and commencing the calibration program when the calibration code indicates that a calibration process should be performed.
Public/Granted literature
- US20080143838A1 Method and apparatus for calibrating a mark verifier Public/Granted day:2008-06-19
Information query