Method and system for locating a hand-held terminal
US8723648B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2009 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Jun 27, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and a method for determining the location of an RFID reader is provided. The system includes a plurality of transmitters which have a known reference point. Each transmitter includes a circuit for transmitting a sequence of unique RFID pseudo tag signals. Each unique RFID pseudo signal in the sequence has a unique range of transmission. Each unique RFID pseudo tag in the sequence has a tag identification indicating the range of transmission of the pseudo tag signal and a transmitter identification value indicating the transmitter from which the pseudo tag signal was transmitted. An RFID reader receives the unique RFID pseudo tag signals and distinguishes between each received unique RFID pseudo tag signal. A location calculator calculates the location of the RFID reader based on the information received.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.