AF evaluation value calculating device

Details AF evaluation value calculating device AF evaluation value calculating device

2007-03-27

2007-03-27

Ometz, David (Department: 2622)

Television

Camera, system and detail

Optics

C348S354000, C396S089000

Reexamination Certificate

active

10364378

ABSTRACT:
The present invention provides an AF evaluation value calculating device in which speed of AF control does not deteriorate even when a number of AF areas are set. The AF evaluation value calculating device for calculating an AF evaluation value used for AF (auto-focus) control of a digital camera, includes: at least one AF evaluation value calculating unit13for calculating an AF evaluation value in each of a plurality of AF areas which are set in an image area of image data supplied; and a data transmitter (17aand ch0) for transmitting the AF evaluation value calculated by the AF evaluation value calculator13into a predetermined memory by DMA (Direct Memory Access).

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