Divisionally time-compressed subsample transmission and motion-compensated reproduction system for a high definition color television picture signal
US4745459A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1987 |
| Grant date | May 17, 1988 |
| Priority date | — |
| Expiry date | Apr 2, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N11/28
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A high definition color television picture signal is unified by time-axis compressed integration (TCI) and the bandwidth thereof is extremely narrowed by dot-interlace subsampling. As a result, a narrow band transmission picture signal accompanied with a control signal adapted to the restoration of the received original picture signal, which is suitable for satellite broadcast, can be obtained through a comparatively simple arrangement. The received narrow band transmission picture signal can be restored by the interpolation adapted respectively to the stationary picture and the motion picture under control of the control signal or the picture-motional information detected from the received picture signal in combination with the control signal, so that the original high definition can be sufficiently maintained through comparatively simple receiving equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.