Automatic white adjusting circuit for a television camera

Details Automatic white adjusting circuit for a television camera Automatic white adjusting circuit for a television camera

1981-06-01

1983-04-26

Chin, Tommy P.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 9535

Patent

active

043815200

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: 4219841 (1980-08-01), Nishimura
patent: 4249197 (1981-02-01), Van Spaandonk
patent: 4274107 (1981-06-01), Tamura

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