System and method for E911 location privacy protection
US7751826B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2002 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Jul 17, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to a system that enables power to be selectively applied to GPS circuitry in a cellular telephone or other mobile device only when a specific user input is detected. In one embodiment, power to the GPS circuitry may be enabled only when the user strikes the keys “9-1-l.” In other embodiments, other types of GPS enablement or disablement may be employed, such as selectively decoupling the GPS antenna. In another embodiment, the user may depress a privacy bypass button, which alternately enables and disables power to the GPS circuitry. Cellular telephones or other communication devices may therefore activate GPS location service during an emergency call, or when a user wishes to allow their location to be determined, but protect the privacy of that user's location and movement at other times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.