Active backscatter transponder, communication system comprising the same and method for transmitting data by way of such an active backscatter transponder
US7242259B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2003 |
| Grant date | Jul 10, 2007 |
| Priority date | — |
| Expiry date | Feb 24, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/0008
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a device, especially an active backscatter transponder, for generating an oscillator signal based on a base signal. It comprises an oscillator for actively constructing the oscillator signal by oscillations, an input for the base signal and an output for the oscillator signal produced. The oscillator can be induced by the base signal to generate oscillator signal in a quasi-coherent manner to the base signal. For the transmission of data, the device further has a data insertion device for inserting data or a data signal into the oscillator signal. A corresponding suitable receiver receives and processes the received signal that was generated and transmitted by such a device as a quasi-coherent signal. A separation device removes the signal portions of the oscillator from the received signal via the base signal of a receiver-side oscillator, with a data retrieval device for retrieving the inserted data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.