Electronic component with integrated tuning device, allowing the decoding of digital terrestrial or cable television signals
US7406304B2 · kind B2 · utility
4Cited by
33References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2004 |
| Grant date | Jul 29, 2008 |
| Priority date | — |
| Expiry date | Jun 8, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D7/165
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An integrated superheterodyne dual-conversion tuner upconverts a signal so as to place it outside a reception band, and then downconverts the signal with a non-zero intermediate frequency. A first filter of the bulk acoustic wave type is positioned between the up and down conversion and is calibrated in such a way as to accurately determine its central frequency. A second filter of a microelectromechanical type receives the downconverted signal and is calibrated in such a way as to accurately determine its central frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.