Activation of an NFC device
US11012118B2 · kind B2 · utility
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20Claims
0Family size
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Key dates
| Filing date | May 25, 2018 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | May 25, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/45
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A near field communication (NFC) method includes activating an NFC device second device in response to a first electromagnetic field generated by a nearby NFC device. The NFC device generates a second electromagnetic field after being activated. The first NFC device can detect the second electromagnetic field and initiate a near field communication process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.