Method and apparatus for down-converting a digital signal

Details Method and apparatus for down-converting a digital signal Method and apparatus for down-converting a digital signal

1996-05-15

1998-11-10

Casler, Brian

Television

Format conversion

348403, H04N 701

Patent

active

058351515

ABSTRACT:
A method and apparatus for down-converting a digital video signal includes a synthesizer and a converter. The synthesizer receives a digital video signal including at least first and second DCT blocks of DCT coefficients, and synthesizes the first and second DCT blocks into a single synthesized DCT block having dimensions equal to the first and second DCT blocks. The converter converts the synthesized DCT block from the DCT domain to the spatial domain to produce an output digital video signal.

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Huifan Sun et al.; "Hierarchical Decoder for MPEG Compressed Video Data"; IEEE Transactions on Consumer Electronics, vol. 39, No. 3, Aug. 1993; pp.559-564.
Jill Boyce et al.; "An SDTV Decoder with HDTV Capability"; pp. 1-12; SMPTE Fall Conf. New Orleans, 1995.

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