Passive RFID transponder and RFID reader
US8616456B2 · kind B2 · utility
0Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2011 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Jun 20, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A passive RFID transponder includes a coder and a modulator. The coder generates a digital coded data stream based on a digital data stream to be transmitted. The digital coded data stream includes an initialization bit sequence having a maximum data frequency of the digital coded data stream. Furthermore, the digital coded data stream changes its value at the latest after a predefined number of bits. The modulator modulates an amplitude of a carrier signal with the digital coded data stream to provide an amplitude-modulated coded signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.