Near field communication method of detection of a tag presence by a tag reader
US9729209B2 · kind B2 · utility
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6References
22Claims
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Key dates
| Filing date | Nov 20, 2013 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Nov 20, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10297
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A Near Field Communication method performed by a tag reader detects whether a tag is present. The method includes stimulating the tag reader's transmitter to generate an impulse response, evaluating the impulse response generated by the transmitter to obtain an evaluated impulse response, and assessing whether a tag is present based on the evaluated impulse response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.