Method for operating object capable via contactless communication
US9912386B2 · kind B2 · utility
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1References
21Claims
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Assignee
Inventor
Key dates
| Filing date | Sep 14, 2015 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Mar 31, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/77
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for managing the operation of an object capable of contactless communication with a reader, magnetically coupled to the object, includes at least one phase for transmission of information from the object to the reader, including a modulation of the impedance of a load connected across the terminals of the antenna of the object. The method furthermore comprises a control phase that includes an estimation of the distance between the object and the reader and an adjustment of the impedance of the load as a function of the estimated distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.