Infrared link for security system
US6218955A · kind A · utility
16Cited by
15References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1997 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | Feb 6, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2009/00785
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An infrared communication system provides a communication link between a stand-alone electrically controlled lock and a centralized control system. A module comprising a transmitter and a receiver is mounted in fixed position to the door frame. A second module comprising a transmitter and a receiver is mounted to the door.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.