Access control system and method
US11639617B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2019 |
| Grant date | May 2, 2023 |
| Priority date | — |
| Expiry date | Oct 22, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C9/00714
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A lock for securing a door is provided, the lock includes a housing configured to be mounted on a door, a locking member movable between locked and unlocked positions, a core with a keyway and configured to turn relative to the housing to cause the locking member to move between the locked and unlocked positions, at least one optical source configured to emit an electromagnetic radiation signal at an object in the keyway, at least one optical detector configured to detect at least a portion of the electromagnetic radiation signal, a memory configured to store at least one authorized key characteristic, a motor configured to control movement of the locking member between locked and unlocked positions, and a processor that determines at least one sensed characteristic of the object in the keyway based at least in part on the electromagnetic radiation signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.