Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1992-09-03
1994-09-13
Brinich, Stephen
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
348228, 348349, 348222, H04N 5232
Patent
active
053473710
ABSTRACT:
A video camera for enabling improvement in automatic functions such as automatic white balancing and automatic focusing while controlling picture quality of a video image including a specific object of the video image and/or background thereof. The video camera includes an image pickup device and a signal processing circuit responsive thereto for processing the image picked up by the image pickup device and providing a video signal as an output. An extraction unit is provided for extracting a signal representative of a specific portion of the video signal of the signal processing circuit, and a control unit responsive to the signal extracted by the extraction unit effects control of at least one of the signal processing circuit and at least one input control parameter of the video camera in accordance therewith, thereby providing improvement in the picture quality.
REFERENCES:
patent: 4535364 (1985-08-01), Hirobe
patent: 4701782 (1987-10-01), Duvent
patent: 4789898 (1988-12-01), Zwirn et al.
patent: 4794459 (1988-12-01), Moberg et al.
patent: 4829382 (1989-05-01), Hess et al.
Imaide Takuya
Nishimura Ryuji
Nishizawa Akihito
Yamamoto Mayuko
Brinich Stephen
Hitachi , Ltd.
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