Method and apparatus for stopping power supply in RFID system
US8416063B2 · kind B2 · utility
4Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2007 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Nov 10, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided are a method and apparatus for stopping power supply to a radio frequency identification (RFID) system. The apparatus includes: a power supplier supplying power to a high RFID tag; an input unit rectifying and boosting an input predetermined frequency band signal and outputting a direct-current (DC) voltage signal; a wake-up determiner comparing a voltage of the DC voltage signal output from the input unit with a predetermined reference voltage and outputting a HIGH signal or a LOW signal; and a switch stopping power supply to the high RFID tag if the wake-up determiner outputs the LOW signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.