Access control systems
US7958359B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2001 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | Oct 24, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/327
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates generally to access control. One claim recites a method of determining whether to allow access to a location, including: receiving optical data from an optical sensor, the optical data being associated with an object presented to the optical sensor, wherein the object comprises optically-detectable, machine-readable indicia encoded in a predetermined symbology thereon, the indicia including at least an orientation component; determining an orientation of the orientation component; obtaining from a data store a predetermined orientation; and comparing the predetermined orientation with the determined orientation to decide whether to allow access to the location. Of course, other claims are provided as well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.