Identification and information storage devices
US5519200A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 28, 1994 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Oct 28, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S235/90
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An identification and information storage device, for attachment to an article to be identified, includes: a magneto-optical strip, formed on a substrate and attached to the article, which is adapted to store first information readable by the reflecting and modifying of the polarization state of a light beam directed thereon; and an optically detectable pattern portion including an optical bar code for storing second information relating to the identification of the article, wherein the magneto-optical strip is positioned in a known location relative to the optical bar code such that on visual identification of the bar code the location of the magneto-optical strip can be found.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.