Bar code specifications receive comments in Chinese
04 September 2008
Two bar codes specifications (Grid Matrix and DotCode) are out for public review draft via AIM Global. Grid matrix is designed to include Chinese characters.
The Public Review Draft of the International Symbology Specification – Grid Matrix, developed by AIM Global's Technical Symbology Committee (TSC), is available for a 30-day public review. Grid Matrix is designed to encode the entire GB 2312-1980 Chinese character set efficiently. It can also encode 7-bit ASCII, numeric, and binary data and is intended for broad use in printed symbols and mobile phone display applications.
The variable size, dimensionally square, two-dimensional matrix symbology with dark- and light-framed ‘macromodules’ creates a grid design that provides a robust finder pattern, which ensures ‘finding’ of the symbol even with significant symbol damage. User-selectable levels of Reed-Solomon error correction are incorporated for correct reading of data.
AIM Global president Dan Mullen praised the public review of Grid Matrix: ‘The first proposed international symbology specification from China.’ Strong future growth is expected there; Mullen thanked the active involvement of the symbology sponsors from China and dedication of the TSC members, which moved the document from initial submission to public review in less than 18 months.
International Symbology Specification – Grid Matrix, developed by AIM Global
Public Review Draft of the International Symbology Specification – DotCode was also announced, developed by the AIM Global Technical Symbology Committee (TSC), available for a 30-day public review.
DotCode is a variable size, variable shape, matrix symbology designed for high-speed marking applications where alignment or connection of individual dots is problematic. It uses discrete printed elements with at least one nominal element space between them as a non-printed area, to offer a practical method to provide item identification at full production line speeds. It uses a number of features to make marking and reading tolerant of distortion that may occur during the marking process. Reed-Solomon error correction enables correct reading despite symbol damage.
International Symbology Specification – DotCode, developed by AIM Global
AIM Global’s Mullen said: ‘With increasing attention being placed on being able to uniquely identify items – from food items to pharmaceuticals to critical machine parts – DotCode offers a real solution for applications where traditional bar code printing cannot provide mass serialisation without slowing down the production or packaging process.’
The Public Review process ends Sept. 30, 2008. Interested reviewers can download the documents for a fee (AIM Global members may download free of charge with login), from the Website. Reviewers should send comments to firstname.lastname@example.org. Comments must be submitted on Form 13-B, included in the download zip file.
– Control Engineering News Desk
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