Patent · US Expired

Method for reading distorted bar codes

US5929420A · kind A · utility

15Cited by
9References
53Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 22, 1997
Grant dateJul 27, 1999
Priority date
Expiry dateApr 22, 2017

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06K7/14
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

Bar code decoding methods and apparatus are disclosed wherein prototype characters are generated using calculated bar code distortion attributes. The vector distance measurements between the scanned bar code characters and the prototype characters are advantageously utilized to provide advanced and improved decoding.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.