Solid state color image pickup apparatus

Details Solid state color image pickup apparatus Solid state color image pickup apparatus

1996-09-10

1999-05-25

Garber, Wendy

Television

Camera, system and detail

With single image scanning device supplying plural color...

348493, 348279, 348505, H04N 5335

Patent

active

059073551

ABSTRACT:
A solid state color image pickup apparatus easily converts an output from a solid state image sensor to a television signal with a simple structure, thereby facilitating the reduction of the size, weight, power consumption and cost of the image pickup apparatus. A color filter, which has a plurality of color filter elements respectively facing light receiving elements of a solid state image sensor, modulates optical information so that an image pickup signal output from the solid state image sensor is composed of a luminance signal component and modulated color signal components, which are obtained by modulating, with two color-difference signals, two carrier waves having phases different from each other by .pi./2, the phases of the two carrier waves are different by .pi. every horizontal scanning period in each field of a television signal, and the luminance signal component has a spectral characteristic substantially the same as that of a luminance signal of a standard television system, the first color-difference signal has a spectral characteristic substantially the same as that of a signal obtained by subtracting the luminance signal of the standard television system from a red signal of the standard television system, and the second color-difference signal has a spectral characteristic substantially the same as that of a signal obtained by subtracting the luminance signal of the standard television system from a blue signal of the standard television system.

REFERENCES:
patent: 4758883 (1988-07-01), Kawahara et al.
patent: 4903122 (1990-02-01), Ozaki et al.
patent: 5121193 (1992-06-01), Nishimura et al.
patent: 5243412 (1993-09-01), Goukura et al.
patent: 5278637 (1994-01-01), Naimpally

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