Apparatus for modifying reproduction frequency band of video...

Details Apparatus for modifying reproduction frequency band of video... Apparatus for modifying reproduction frequency band of video...

2007-07-31

2007-07-31

Vu, Ngoc-Yen (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S241000

Reexamination Certificate

active

10402936

ABSTRACT:
False signals and noise are reduced in a device such as a digital still camera having a solid-state electronic image sensing device. To achieve this, a luminance signal generating circuit generates luminance signals Y1and Y3having different reproduction frequency bands. The larger the sum Cd of the absolute values of color difference signals Cr and Cb, the greater the proportion of R- and B-color components in the image of a subject. Accordingly, the luminance signals Y1and Y3are combined in such a manner that a reproduction frequency band based upon the R- and B-color components will dominate.

REFERENCES:
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patent: 5493412 (1996-02-01), Koyama et al.
patent: 5848181 (1998-12-01), Ogata
patent: 6816193 (2004-11-01), Kohashi et al.

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