Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1988-12-13
1989-07-25
Coles, Sr., Edward L.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 41, 358 55, 358209, 358225, H04N 973, H04N 5225, H04N 5232, H04N 904
Patent
active
048518972
ABSTRACT:
In an image pickup system such as a video camera having an adjusting circuit for adjusting a white balance in a color image signal, each interchangeable lens has a device for providing information on the spectral characteristic inherent in the lens. In one embodiment, a microcomputer is provided for processing the information on the spectral characteristic inherent in the lens. When the lens is mounted on the camera body incorporating the adjusting circuit, the information on the spectral characteristic of the lens is transmitted into the camera body by a mechanical arm whose length is representative of the spectral characteristic of the lens, thereby enabling the adjusting means to make a proper adjustment of the white balance for each lens having a different predetermined spectral characteristic.
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patent: 3872499 (1975-03-01), McConnell et al.
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patent: 4472740 (1984-09-01), Doi
patent: 4477161 (1984-10-01), Kawasaki et al.
patent: 4529288 (1985-07-01), Nakai et al.
patent: 4782355 (1988-11-01), Sakai et al.
Inuma Mutsumi
Suzuki Masao
Canon Kabushiki Kaisha
Coles Sr. Edward L.
Svihla Randall S.
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