Repeater for radio frequency signals, and for digital television signals in particular
US8565671B2 · kind B2 · utility
11Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2008 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Sep 7, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/15578
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
This invention concerns a repeater for radio frequency signals having a channel filter and an active filter connected to the channel filter output. The active filter covers the channels adjacent to the channel filter and includes an amplifier and; two bandpass filters in parallel connected as a negative feedback loop around the amplifier. The first bandpass filter covers the lower adjacent channels and the second bandpass filter covers the higher adjacent channels. The invention notably applies to the development of domestic repeaters for mobile terminals meeting the DVB-H digital television standard.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.