System for processing a picture data signal for an image display

Details System for processing a picture data signal for an image display System for processing a picture data signal for an image display

1998-06-05

2000-08-01

Lee, Michael H.

Television

Format conversion

Conversion between standards with different aspect ratios

348458, H04N 701

Patent

active

060974389

ABSTRACT:
A one-line memory is provided for sequentially writing input picture data of one horizontal scanning line and for sequentially reading the written picture data. A plurality of expansion and contraction circuits are provided for increasing and decreasing the number of picture data of a plurality of sequentially inputted horizontal scanning lines. The expansion and contraction circuits produce picture data increased or reduced in line in dependency on coefficients. A picture memory is provided for storing the picture data from the expansion and contraction circuit.

REFERENCES:
patent: 5534934 (1996-07-01), Katsumata et al.
patent: 5754243 (1998-05-01), Kuribara et al.
patent: 5793434 (1998-08-01), Lee
patent: 5847768 (1998-12-01), Kang
patent: 5896178 (1999-04-01), Inoue

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