Location, identification and telemetry system using strobed signals at predetermined intervals
US6222440A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 23, 1998 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Feb 23, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/0008
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A tracking system is implemented according to the invention in which the identification data of a wireless transmitter is divided into multiple bursts. Instead of transmitting the entire identification in a single burst, the identification is split among bursts, so that it takes a period of time to uniquely identify a particular transmitter. However, the time between bursts falls under tight tolerance, so once a transmitter is identified, it can be further identified based on when it transmits as opposed to what it transmits. In this way, high tractability can be maintained without repeatedly transmitting the entire identification code of the transmitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.