Article locator system
US7148801B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 2, 2004 |
| Grant date | Dec 12, 2006 |
| Priority date | — |
| Expiry date | Nov 7, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4004
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system and method for locating objects such as people, pets, and personal articles is described. A transceiver is attached to the person, animal, or item to be tracked and a handheld locator device is employed to transmit a locator signal containing an address code to the transceiver. Upon receipt of a signal, the transceiver compares the address code contained in the locator signal with an address code stored in the transceiver. If the two codes are same, the transceiver sends a return signal back to the locator device. The locator device uses this return signal to determine the distance and/or direction of the transceiver from the user's location. The system allows a user to select from a multiple number of items to locate and allows multiple users to search for different articles within the same general area without interference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.