Enclosed space communication systems and related methods
US8725188B1 · kind B1 · utility
1Cited by
43References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2009 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Jun 5, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/155
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and methods for communication in enclosed areas. Implementations may include a high-frequency (HF) conversion side including an HF modulator and HF demodulator which is coupled with an HF antenna. A medium-frequency (MF) conversion side including an MF modulator and an MF demodulator which is coupled with an MF antenna may also be included. The HF conversion side may be coupled to the MF conversion side at the HF demodulator and the HF modulator. The HF conversion side may be physically separate from the MF conversion side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.