Grayscale barcode reading apparatus system including translating device for translating a pattern image into a sequence of bar widths and transition directions
US5619026A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1995 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Jan 4, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for verifying an object of interest, includes a grayscale one-dimensional bar pattern coupled to the object, an illumination and imaging system using a one-dimensional imaging device for reading the pattern coupled to the object and for producing a pattern image, a device for translating the pattern image into a sequence of bar widths and transition directions representing a detected code, a device for comparing the detected code with a predetermined code, and a device for indicating one of the detected code and acceptance or rejection of the detected code based on comparison of the detected code with the predetermined code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.