Method and system for detecting digital QAM, VSB and analog TV signals
US7738040B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2007 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | Jun 30, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/106
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
System and methods for processing signals in a television system are disclosed and may include measuring relative power of RF carriers over a full bandwidth of one or more received TV channels. The method may also include determining based on the measured relative power, whether the one or more received TV channels includes a digital component or an analog component without demodulating the received TV channel. It may be determined whether the one or more received TV channels includes a digital component or an analog component without synchronizing and/or decoding the one or more received TV channels. The method may further include tuning to the one or more received TV channels. It may be determined whether an applied power gain for the one or more received TV channels is a maximum power gain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.