Television – Image signal processing circuitry specific to television – Chrominance-luminance signal separation
Patent
1992-06-22
1994-06-28
Groody, James J.
Television
Image signal processing circuitry specific to television
Chrominance-luminance signal separation
348675, 348704, 348708, H04N 964, H04N 978, H04N 520, H04N 5202
Patent
active
053251822
ABSTRACT:
A video signal processing circuit is incorporated in an IC for camcorder in which a camera signal outputted from a CCD image sensor is processed in a digital manner such that luminance and color signals can be outputted. In the IC, a vertical interpolation circuit produces two kinds of vertically interpolated data on the basis of a digital camera signal of one channel within an image area being set by an electronic zoom function. A YC separation circuit receives the two kinds of vertically interpolated data, and an output of the YC separation circuit is applied a horizontal interpolation circuit or an RGB composition circuit. If the YC separation output is applied to the horizontal interpolation circuit, the same outputs two kinds of horizontally interpolated data upon which three primary color signals are composed by the RGB composition circuit. If the YC separation output is applied to the RGB composition circuit, the horizontal interpolation circuit produces two kinds of horizontally interpolated data on the basis of three primary color data outputted by the RGB composition circuit.
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Asaeda Tooru
Kawakami Kiyotada
Maenaka Akihiro
Mori Yukio
Murata Haruhiko
Groody James J.
Miller John W.
Sanyo Electric Co,. Ltd.
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