Method and apparatus for handling wireless transmissions from a tag
US7982607B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2006 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Jan 20, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/017
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A tag has a receiver section, a transmitter section, and a further section, the further section being responsive to receipt by the receiver section of a wireless signpost signal from one signpost in a group of signposts for thereafter inhibiting transmission of tag signals by the transmitter section pending receipt by the receiver section of a respective signpost signal from each signpost in the group. A different configuration includes a tag having a receiver section, a transmitter section, and a further section, the further section inhibiting transmission of tag signals by the transmitter section during a time period that ends as a function of the absence of receipt by the receiver section of signpost signals, the further section responding to receipt of signpost signals by the receiver section during the time period by saving information relating to signposts that generated the signpost signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.