Passive radio frequency identification (RFID) reader, passive RFID tag, and transmitting and receiving methods using extended pulse-interval encoding (PIE)
US9355286B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Dec 2, 2014 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Dec 2, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/4902
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An extended Pulse-Interval Encoding (PIE) modulating method in a Radio Frequency IDentification (RFID) system, wherein the method modulates 2-bit transmitted data and comprises: adjusting a length of a symbol according to a value of the first bit of the transmitted data; and adjusting a length of an energy transfer waiting section according to a value of the second bit of the transmitted data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.