Neutral zones for navigation
US8805611B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2011 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Nov 8, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3626
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The described method and system provide for treatment of certain areas as neutral zones during GPS navigation to avoid unnecessary off-route notifications and route recalculation. A GPS unit determines whether the user has entered a geographic region designated as a neutral zone, and does not provide the user with off-route notifications while the user is within the neutral zone. Not providing off-route notifications may be implemented by the GPS device by considering the user to be within the calculated route while the user is within a neutral zone, or by disabling off-route notifications (and route recalculation) while the user is within the neutral zone. The neutral zone may be defined by a set of GPS coordinates. The neutral zone may further be polygonal, and the size of the neutral zone may be based on the accuracy of the GPS device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.