1
Stephen J Shellhammer, Ming Hua Chen, Arman Nikzad: Method and apparatus for decoding two-dimensional bar code using CCD/CMD camera. Symbol Technologies, Finnegan Henderson Farabow Garrett & Dunner, June 7, 1994: US05319181 (329 worldwide citation)

A 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-dimensi ...


2
Shellhammer Stephen J, Chen Ming Hua, Nikzad Arman: Method and apparatus for decoding two-dimensional bar code using ccd/cmd camera.. Symbol Technologies, September 22, 1993: EP0561334-A2 (23 worldwide citation)

A 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-dimensi ...


3
Arman Nikzad, Ming Hua Chen, Stephen J Shellhammer: Method and apparatus for decoding two-dimensional bar code using ccd/cmd camera. Olympus Optical, CHENG WEI, September 29, 1993: CN93102567

A 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-dimensi ...



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