Imaging device and control method thereof

Details Imaging device and control method thereof Imaging device and control method thereof

2005-04-05

2005-04-05

Christensen, Andrew (Department: 2615)

Television

Camera, system and detail

Optics

C348S354000, C348S222100

Reexamination Certificate

active

06876391

ABSTRACT:
In an electronic still camera where the signal charges accumulated corresponding to the image of a subject formed by an imaging optical system1are read from a CCD and displayed on an LCD via an imaging circuit, an A/D converter, a buffer memory, and a D/A converter, or recorded on a recording memory via a compression/expansion circuit, the photoelectric conversion elements of the CCD are divided into groups composed of combinations of lines spaced at specific intervals, charge accumulation start timing is controlled in such a manner that the elements belonging to the same group start to accumulate charges with the same timing and the elements belonging to another group start to accumulate charges with different timing, an AF processing section finds an in-focus position from the image signal read from each of the photoelectric conversion element groups in the CCD5, and on the basis of the in-focus position, a focus lens group is driven.

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Office Action issued by Japanese Patent Office on Jan. 7, 2003 and English translation thereof.
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