Multiplexed modulation system for robust audio digital television
US5561468A · kind A · utility
76Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1995 |
| Grant date | Oct 1, 1996 |
| Priority date | — |
| Expiry date | Feb 28, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/015
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for transmitting a digital television signal using a single QAM (quadrature amplitude modulated) carrier which provides audio and video data packets at respective complex symbol data rate levels. One purpose of the invention is to provide a digital television signal which resembles the audio vs. video reception characteristics exhibited by conventional analog television (i.e. NTSC). way communication path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.