Secure entry system with radio reprogramming
US6822553B1 · kind B1 · utility
39Cited by
40References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1993 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Oct 15, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7068
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
One or more lock or key units of a secure entry system is equipped with a radio receiver. The receiver permits a memory in the lock or key unit to be updated with new data that is modulated onto a radio frequency signal. By this technique, system-wide changes of programming data, such as changes of lockout lists and access codes, and changes targeted to specific units, such as disabling a particular key, can be implemented simply and quickly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.