Pattern recognition device
US4841129A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1986 |
| Grant date | Jun 20, 1989 |
| Priority date | — |
| Expiry date | Dec 19, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10811
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A scanning device for reading bar codes symbols comprising at least two moveable, preferably rotatably driven, reflective surfaces, such as mirrors, which direct a light source, preferably from a laser, in a scanning pattern towards the object to be scanned. At least one of said reflective surfaces having an associated lens means to modify the light beam associated with its reflective surface, and means adapted to move each of said reflective surfaces and the associated lens into a path adapted to intersect with said beam of light. Means are provided to direct the beam of light outside the scanning device as a sweep beam onto the bar code symbol to be read and optical means and sensing means are provided to collect the light reflected from the bar code symbol and generate data therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.