Methods, systems and devices for electronic article surveillance deactivation having randomized transmission rates
US9824245B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Jun 22, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/2482
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Methods, systems and devices for providing an interrogation signal from a handheld deactivation device for identifying a security tag. Identifying the security tag includes initiating an interrogation signal, wherein the interrogation signal includes plurality of transmission bursts and a plurality of random time periods to wait between transmission bursts such that a unique time period elapses between each of the plurality of transmission bursts. The interrogation signal is then transmitted by transmitting each of the plurality of transmission bursts for a portion of a duty cycle and interrupting transmission between each of the plurality of transmission bursts for one of the plurality of random time periods such that a unique and random time period elapses between each of the plurality of transmission bursts. The period transmission of the interrogation signal provides for improved battery life of a handheld scanning and deactivation device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.