Low cost scan converter for television receiver
US5963261A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1996 |
| Grant date | Oct 5, 1999 |
| Priority date | — |
| Expiry date | Apr 29, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/0122
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A circuit that is easily configured to convert from a progressive scan image, e.g., at a resolution of 1280.times.720, to an interlaced image scan, e.g., at an interlaced resolution of 1920.times.1080 (1920.times.540 per field), or visa-versa. One arrangement of the circuit employs multiplexers so that the two conversion modes share the available hardware. The circuit is only marginally more complex than a circuit that can only do the conversion in one direction. The quality of the progressive-to-interlace conversion is acceptable for high-end interlaced display systems and the quality of the interlace-to-progressive conversion is at least high enough for "mid-range" progressive display systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.