Method and apparatus for decoding two-dimensional bar code using CCD/CMD camera
Patent 5319181 Issued on June 7, 1994. Estimated Expiration Date: 
March 16, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 16, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3774014 Multitrack bar code and associated decoding method Bar code reader Omnidirectional bar code reader using virtual scan of video raster scan memory Patent #: 5124537 InventorsAssigneeApplicationNo. 851493 filed on 03/16/1992US Classes:235/462.09, 2-D bar code235/462.11Including an imager (e.g., CCD or camera-type reader)ExaminersPrimary: Dolinar, Andrew M.Attorney, Agent or FirmForeign Patent References
International ClassesG06K 007/10G06K 009/00 AbstractA method and apparatus for decoding a two-dimensional bar code symbol using a charge-coupled device (CCD) camera or a charge-modulation device (CMD) camera. The CCD/CMD camera takes pictures of the symbol and the picture is converted into digital data. The location and orientation of the two-dimensional bar code symbol is determined and verified. Defects and damages on the symbol are detected and corrected. The symbol is scanned to read the codewords of the two-dimensional bar code symbol.Other References
| |
