Signal separation for energy harvesting
US8611820B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 22, 2009 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Aug 19, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/6066
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Techniques for designing a communications unit including a signal separation module for energy harvesting. In an exemplary aspect, the signal separation module includes first and second quadrature hybrids coupled by band-pass filters (BPF's). Incoming signals within the pass-band of the BPF's are directed through the quadrature hybrids and through the BPF's, and emerge as a desired pass-band signal to be processed by an RX processing module. Incoming signals lying outside the pass-band of the BPF's are reflected from the BPF's back to the first quadrature hybrid, and output as a non-pass-band signal to be processed by an energy harvesting module. In a further exemplary aspect, the signal separation module resides in a detachable module coupleable to a wireless communications device, and a signal transmitted by the wireless communications device is coupled to the signal separation module for energy harvesting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.