GPS triggered automatic annunciator for vehicles
US5808565A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1997 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Mar 21, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3655
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for automatically announcing the arrival status of a vehicle to occupants of the vehicle. The apparatus stores route identification, trip identification, and destination identification for at least one predetermined route. The destination information includes, for each destination, at least a destination number, destination name, and a set of first and second latitude and first and second longitude coordinates defining a logical box associated with each destination. The apparatus also stores digital information corresponding to an announcement for each destination, inputs an intended route and trip identification at a starting point of the intended route and trip, and has a GPS receiver for determining the present position of the vehicle in latitude and longitude coordinates. The apparatus determines whether the present position of said vehicle in latitude and longitude coordinates is within a particular logical box on said predetermined route and, if so, outputs a digitized voice or visual alphanumeric display of the name of the destination to the occupants of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.