Three-dimensional object identifying system
US6603867B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1999 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Aug 30, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A three-dimensional object identifying system is disclosed which identifies a three-dimensional shape object optically such as a part of a human body for preventing an information apparatus such as a personal computer from being used by any other illegitimate user than a legitimate user. The three-dimensional object identifying system has a function generating unit which generates modulation signals, light emitting elements which emit lights based on the modulation signals to a three-dimensional object, light receiving elements which receive reflected lights from the three-dimensional object and which produce detection signals, a correlation detecting unit which detects correlation information between each detection signal and modulation signal, and an identifying unit which performs identifying processing for the three-dimensional object on the basis of both pre-cataloged correlation information and the detected correlation information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.