Indoor/outdoor transition determination
US9482739B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2012 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Dec 21, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus and method is provided for indoor/outdoor transition detection of devices to improve selection of the navigation algorithms. To determine whether an outdoor-to-indoor transition has occurred, a mobile device can determine whether a difference between an indoor position determined using indoor position information and outdoor position determined using outdoor position information is less than a threshold and can conclude that the mobile device transitioned from outdoor to indoor of the structure, if the difference is less than the threshold. Also, to determine whether an indoor-to-outdoor transition has occurred, the mobile device can determine whether an indoor position survey area exists, determine whether an outdoor position determined based on outdoor position information is outside of the survey area, and determine whether a signal strength associated with the outdoor position location information is greater than a threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.