Function-limiting device and function-limiting method
US7292843B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 20, 2005 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | Jul 19, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W48/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Non-reception-controlled area information is stored in the non-reception-controlled area storage section of the reception control device for each mobile device ID. When the reception control device receives the disconnection signal and position information from the mobile device in accordance with the mobile device moving away from the key terminal, the presence/absence determination section determines whether or not the mobile device is within the aforementioned area. As a result of the determination, if the current position of the mobile device is within the aforementioned area, control for enabling reception for the mobile device is performed, and if the current position is outside the aforementioned area, control for disabling reception for the mobile device is performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.