Amazon technologies, inc. (20250016522). GEOFENCE TRACKING WITH DEVICE LOCATION PRIVACY
GEOFENCE TRACKING WITH DEVICE LOCATION PRIVACY
Organization Name
Inventor(s)
Szymon Ulewicz of Vancouver CA
GEOFENCE TRACKING WITH DEVICE LOCATION PRIVACY
This abstract first appeared for US patent application 20250016522 titled 'GEOFENCE TRACKING WITH DEVICE LOCATION PRIVACY
Original Abstract Submitted
a system for providing a geofence service is disclosed. the geofence service receives an encrypted geospatial index for a specified geofence based on application of a hash function to respective ones of a plurality of locations for the specified geofence in accordance with a secret key that is unknown to the geofence service. the geofence service stores the encrypted geospatial index to a data store according to a geofence identifier for the specified geofence. the geofence service receives an encrypted device location identifier generated based on application of the hash function to a representation of a current location of a user device in accordance with the secret key. the geofence service determines whether the user device is located in a location of the plurality of locations based on a query of the encrypted geospatial index according to the encrypted device location identifier.