Object-marking means, method for making such means and reading device
US5313193A · kind A · utility
30Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1991 |
| Grant date | May 17, 1994 |
| Priority date | — |
| Expiry date | Jun 21, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F7/125
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An identification system is disclosed which includes marks on an object for locating a region of the object which contains an identification in the form of either an etching or a responsive electronic circuit and a detection device for detecting the proximity of the first mark in order to localize the position of the etching or responsive electronic circuit so that the etching or responsive electronic circuit may be read.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.