A collar to be worn on an object or a large or small animal has been designed incorporating (D)GPS technology. The operation of the device includes programming the three dimensional boundary into the memory of the device and simply installing the collar on the animal. As the animal approaches the preprogrammed...http://www.google.fr/patents/US20020196151?utm_source=gb-gplus-shareBrevet US20020196151 - Large area position/proximity correction device with alarms using (D)GPS technology
Large area position/proximity correction device with alarms using (D)GPS ...
Numéro de demande: 10/035,937 Numéro de publication: US 2002/0196151 A1 Date de dépôt: 26 déc. 2001 Brevet délivré: US7034695 ( Date de délivrance 25 avr. 2006)
