Method and apparatus for a wireless tether system
US7312711B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 20, 2006 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Jun 12, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/0291
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Method and apparatus to provide a wireless tether system is described. In one embodiment, one or more wireless tether apparatuses are in wireless communication with one or more base units. A wireless tether apparatus may be configured such that when separated from a base unit greater than a predetermined distance, such a wireless tether apparatus provides information to the user of the wireless tether apparatus to aid a user such as a human, animal, or machine in finding their way back to a desired location. A predetermined distance may be configured to change over time to accommodate different tether distance requirements at different times, e.g., closer to a home location at night and further away from the home location during the day. In one aspect, wireless tether apparatuses and base units communicate using a plurality of different communication modes such that when one mode fails other modes are utilized to reestablish a connection therebetween. In another aspect of the present invention, a plurality of wireless tether apparatuses are wirelessly tethered together such that individual proximities are maintained but still allow a plurality of wireless tether apparatus users to …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.