Television – Image signal processing circuitry specific to television – Chrominance-luminance signal separation
Reexamination Certificate
2007-06-05
2007-06-05
Ometz, David (Department: 2622)
Television
Image signal processing circuitry specific to television
Chrominance-luminance signal separation
C348S664000, C348S665000, C348S609000, C348S712000, C348S713000
Reexamination Certificate
active
10794034
ABSTRACT:
A system and method for determining whether to process a signal using three-dimensional comb filtering. Various aspects of the present invention may comprise method steps and system components that generate an inter-frame chroma signal. Various aspects may generate a filtered inter-frame chroma signal by removing a band of frequency components from the inter-frame chroma signal that generally corresponds to chroma signal components. Various aspects may analyze the filtered inter-frame chroma signal to determine whether three-dimensional comb filtering may be appropriate. Various aspects may comprise method steps and components that generate inter-frame and intra-frame luma signals. Various aspects may generate filtered inter-frame and intra-frame luma signals by removing frequency components from the inter-frame and intra-frame luma signals, respectively, that fall outside a frequency band near the chroma sub-carrier frequency. Various aspects may analyze the filtered inter-frame and intra-frame luma signals to determine whether three-dimensional comb filtering may be appropriate.
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MacInnis Alexander G.
Zhong Sheng
Desir Jean W.
McAndrews Held & Malloy Ltd.
Ometz David
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