Method and apparatus for determining the width of elements of bar code symbols
US5329105A · kind A · utility
46Cited by
18References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1992 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | Aug 10, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/1469
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for decoding a bar code symbol receives a signal representative of the symbol and searches the signal in one dimension to locate two adjacent critical points corresponding to an element of the symbol. The system also computes a value representative of the signal energy between the two critical points and determines the width of the element in accordance with the value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.