Automatic white adjusting circuit for a television camera

Facsimile and static presentation processing – Static presentation processing – Attribute control

Patent

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Details

H04N 9535

Patent

active

044867719

ABSTRACT:
An automatic white adjusting circuit for a television camera in which a rough adjustment is first performed with an adjustment quantity of large steps, and fine adjustment is secondly performed with an adjustment quantity of small steps, upon automatic adjustment of the white by performing such operations as directing the television camera towards a white surface. According to the automatic white adjusting circuit of the present invention, the adjusting accuracy of the white balance can be improved, and the white adjustment can be performed automatically within a short period of time.

REFERENCES:
patent: 3670100 (1972-06-01), Briggs
patent: 4249197 (1981-02-01), Van Spaandonk
patent: 4274107 (1981-06-01), Tamura
patent: 4368482 (1983-01-01), Machida et al.
patent: 4381520 (1983-04-01), Machida et al.

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