High definition television arrangement employing motion compensated prediction error signals
US5043808A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1990 |
| Grant date | Aug 27, 1991 |
| Priority date | — |
| Expiry date | Mar 19, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A high definition television system that is characterized by low transmission bandwidth is achieved by in a manner removing much of the redundancies in the signal, efficiently encoding the remaining signals, and transmitting the encoded signal in a manner that is most compatible with the applicable standards. Specifically, the television signal is encoded by developing motion vectors that describe the best motion estimate of the image to be transmitted, by developing motion estimation error signals, by encoding these error signals within the same bandwidth as occupied by standard NTSC signals and by transmitting the encoded error signals during periods that correspond to the active scan intervals of the NTSC TV signal. The motion vectors themselves, together with video and control signals, are transmitted during the NTSC retrace period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.