Low cost scan converter for television receiver

Details Low cost scan converter for television receiver Low cost scan converter for television receiver

1996-04-29

1999-10-05

Tung, Bryan

Television

Format conversion

Progressive to interlace

348448, H04N 701

Patent

active

059632615

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.

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patent: 5517248 (1996-05-01), Isoda
patent: 5610661 (1997-03-01), Bhatt
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