Television – Format conversion
Patent
1992-12-08
1995-01-03
Kostak, Victor R.
Television
Format conversion
348454, H04N 514
Patent
active
053790723
ABSTRACT:
A digital video signal converting apparatus for converting a first digital video signal having a first resolution to a second digital video signal having a second resolution higher than the first resolution, comprises; block segmentation circuit for converting the first digital video signal into a block format, memory having a mapping table stored therein and having address terminals to which the first digital video signal in a block format is supplied and output terminals from which the second digital video signal in block format is output, and block separation circuit for converting the second digital video signal in a block format into a digital video signal in a raster scan order, wherein the mapping table in the memory is generated by training utilizing a plurality of images the training step being performed by generating first and second digital video signal corresponding to each of the plurality of images, converting each of the first and second digital video signals into a block format, and selecting the first digital video signal in a block format is an address signal for the mapping table and inputting the second digital video signal in a block format to a memory area corresponding to the address, and generating data of the mapping table from the signal stored in the memory area.
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SMPTE Journal vol. 98, No. 6, Jun. 1989, Scarsdale, N.Y., US pp. 420-424 P. Robert et al. `Advanced High Definition 50 to 60 Hz Standards Conversion`.
Signal Processing of HDTV, II 30 Aug. 1989, Turin (II) pp. 665-673, XP215284 M. Sakurai `NTSC-HDTV Up-Converter`.
Flynn Nathan J.
Frommer William S.
Kostak Victor R.
Sinderbrand Alvin
Sony Corporation
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