Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1991-12-16
1993-07-13
Groody, James J.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 11, 358 18, H04N 947, H04N 1122
Patent
active
052278670
ABSTRACT:
An apparatus for line-alternating interpolation of chroma signals in a MUSE decoder for a high definition (HD) television can simultaneously transmit color difference signals such that a color difference signal of an untransmitted scanning line is restored using the color difference signal of a neighboring scanning line of a currently transmitting scanning line. In the apparatus, the color difference signals alternately inputting every scanning line through an input terminal, are delayed for periods of one horizontal line, so that the two signals which are most similar to the presently transmitting color difference signal among the delayed color difference signals are added together, and the two signals which are most dissimilar to the original signal are also added together. Therefore, more weight is given to the resultant sum of the similar signals to restore the untransmitted color difference signal, so that two color difference signals most similar to the original color are formed to be simultaneously transmitted.
REFERENCES:
patent: 4516151 (1985-05-01), Stahler
patent: 4796085 (1989-01-01), Shinada
patent: 4853765 (1989-08-01), Katsumata et al.
patent: 5051818 (1991-09-01), Mishima
patent: 5093714 (1992-03-01), Hashimoto
Groody James J.
Murrell Jeffrey S.
Samsung Electronics Co,. Ltd.
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