Transform coding and decoding of an extended definition video si

Television – Bandwidth reduction system – Format type

Patent

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348426, H04N 7015

Patent

active

058414797

ABSTRACT:
Device for coding and decoding an extended definition video (EDTV) signal. The EDTV signal is composed of a first series of picture lines with a compatible video signal and at least one second series of picture lines with a helper signal. The device for adding extra picture lines includes apparatus to the first and/or second series of picture lines. The extra picture lines may include a constant luminance signal, the reference. signal of PALplus picture line 623, or a duplicate of the most adjacent picture line from the PALplus signal.

REFERENCES:
patent: 5408270 (1995-04-01), Lim
"Palplus System Specification", Jun. 1994, by Leo Rozendaal.

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