Variable white balance control circuitry for selecting the appro

Details Variable white balance control circuitry for selecting the appro Variable white balance control circuitry for selecting the appro

1993-09-07

1999-12-28

Groody, James J.

Television

Image signal processing circuitry specific to television

Color balance or temperature

348223, H04N 973

Patent

active

06008863&

ABSTRACT:
An image sensing apparatus includes an image sensor for sensing an optical image and converting the optical image into an electrical signal, and a white balance control circuit for controlling a white balance condition of the electrical signal. A limiting device limits a control range of the white balance control circuit, and a changeover switch changes over the limiting device to selectively change the control range of the white balance control circuit.

REFERENCES:
patent: 4544952 (1985-10-01), Van Cang
patent: 4584598 (1986-04-01), Kutaragi
patent: 4797733 (1989-01-01), Takagi et al.
patent: 4855814 (1989-08-01), Shiraishi et al.
patent: 5289268 (1994-02-01), Suzuki et al.

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