Transponder load modulation
US8111140B2 · kind B2 · utility
5Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2005 |
| Grant date | Feb 7, 2012 |
| Priority date | — |
| Expiry date | Oct 2, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K7/08
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An electromagnetic transponder and a method for controlling by pulse trains a switch for modulating the load of this transponder in an electromagnetic field from which it extracts its power supply, the duty ratio of the pulses being controlled according to the transponder supply voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.