Wayfinding system
US8140258B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 2, 2010 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Aug 2, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/206
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A wayfinding device is provided for giving directions to a desired destination within a building having a plurality of wayfinding beacons configured to transmit data using an ultrasound signal. The ultrasound signal can include a plurality of bursts, wherein a sequence of predefined time intervals between consecutive bursts within the plurality of bursts uniquely identifies each wayfinding beacon. The wayfinding device is separate from the wayfinding beacons and includes a wayfinding beacon recognition component configured to identify a wayfinding beacon when the device receives the data through the ultrasound signal from a wayfinding beacon. The device is further programmed to provide directions to a user of the device in a direction toward the desired destination in response to identifying a wayfinding beacon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.