Video signal processing circuit for a video camera having a recu

Details Video signal processing circuit for a video camera having a recu Video signal processing circuit for a video camera having a recu

1994-06-07

1995-06-27

Groody, James J.

Television

Camera, system and detail

Combined image signal generator and general image signal...

348231, 348241, H04N 5262

Patent

active

054283914

ABSTRACT:
Auto focus control and/or auto exposure control is carried out by using a luminance signal before gamma correction, before addition of aperture signal but after hand shake correction. Auto white balance control is carried out by using a color signal after hand shake correction. Consequently, precise auto focus control, auto exposure control and/or auto white balance control can be done. The field memory for electronic zooming and/or hand shake correction is also used as a field memory for noise reduction. Consequently, a video signal processing circuit which is inexpensive and simple can be implemented.

REFERENCES:
patent: 4984070 (1991-01-01), Tanaka
patent: 5333015 (1994-07-01), Harigaya

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