Pilot signal control for digital television DTV transmission
US6539062B1 · kind B1 · utility
8Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1999 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Oct 21, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/426
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An Advanced Television Standards Committee (ATSC)-compliant pilot tone is generated within an 8-VSB (eight level vestigial sideband) transmission in order to enable Quadrature Amplitude Modulation (QAM) receiver designs to more efficiently process the transmitted/received 8-VSB signal. The method and apparatus also efficiently removes the pilot tone before using conventional QAM demodulator equipment for directly demodulating the 8-VSB signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.