Digital camera

Details Digital camera Digital camera

2001-03-07

2008-09-02

Ye, Lin (Department: 2622)

Television

Camera, system and detail

Optics

C348S354000, C348S345000

Reexamination Certificate

active

07420612

ABSTRACT:
A digital camera includes a CCD imager. If brightness of an object is not enough, a frame rate of the CCD imager at a time of a focus adjustment is changed from 30 fps to 15 fps. This also lowers a reading speed of a camera signal, and reduces noise included in the camera signal. An AF evaluation value is acquired by integrating a high frequency component of a Y signal generated on the basis of the camera signal, and therefore, high noise causes an error in the AF evaluation value and fails to correctly adjust focus. This is the reason why the driving speed of the CCD imager is lowered when the brightness of the object is not enough.

REFERENCES:
patent: 4812912 (1989-03-01), Iida et al.
patent: 6614477 (2003-09-01), Lee et al.
patent: 6657668 (2003-12-01), Hata
patent: 6972799 (2005-12-01), Hashimoto
patent: 2004/0066461 (2004-04-01), Maeda
patent: 200410069070.9 (2008-02-01), None
patent: 63-281582 (1988-11-01), None
patent: 3-73681 (1991-03-01), None
patent: 09-312797 (1997-12-01), None
patent: 10-239579 (1998-09-01), None
patent: 11-298783 (1999-10-01), None
patent: WO 98/52351 (1998-11-01), None
English Translation of JP 63-281582 which was cited in Applicants IDS submitted Sep. 10, 2002.

Affiliated with

Also associated with

Rating

Digital camera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3989523