Combining bar code read data from a plurality of scanning lines formed from one-dimensional images
US5045677A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1988 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Sep 28, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/1491
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A bar code reading arrangement (apparatus and method) for reading and combining and connecting fragmentary read data. A bar code scanner provides a plurality of one-dimensional images and comprises an image sensor for reading the bar code data. As the scanner is moved relative to the bar code, a plurality of parallel scanning lines are formed from the one-dimensional images. Bar code data segments from the scanning lines are read by the image sensor and are combined in accordance with a pre-processing and combining method. The pre-processing method comprises the steps of: reading information on the image sensor concerning the positions of end points located at or near both ends of the bar code; defining an end point as being fixed or moving, based on the relative positional change of the end point; and reading the data segments as both bar code information, and positional information with respect to the positions of the end points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.