Remote access control
US9691199B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2015 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Dec 28, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L13/00
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Methods and devices for using a backend system to allow access to a residence are provided herein. In some embodiments, a call box located at a residence may call a telephone number associated with a user account on the backend system that corresponds to a resident of the residence. When the call box calls the telephone number associated with the user account, an audio message may be provided that includes a question whose answer is a user selected passphrase. A response to the question is then analyzed to determine whether or not the response includes the passphrase. If so, a signal, such as an audible tone, is provided to the call box. The audible tone, when played, may cause a door of the residence to become unlocked.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.