Passive RFID system and method
US8717147B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2010 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Sep 8, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10069
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are a passive RFID (Radio Frequency Identification) system and method capable of recognizing a great deal of tags at a high speed. A reader of a passive RFID system, including: a processor dividing slots and subchannels to configure a round, recognizing subchannels that are not involved in a collision and interference by the slots, and changing the subchannels that are not involved in a collision and interference, into a sleep state; a transmission unit encoding a command generated through the processor, performing an amplitude jitter modulation on the encoded command, and transmitting the modulated command; and a reception unit acquiring and demodulating tag signals received through a plurality of subchannels by the slots, and providing the demodulated tag signals to the processor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.