Mobile communications terminal for compensating automatic...

Photography – Exposure control circuit – Having plural photocells

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C396S241000, C348S364000

Reexamination Certificate

active

11366554

ABSTRACT:
A method for compensating an automatic exposure of a camera in a mobile communication terminal. The method includes determining a presumptive error value based on an average luminance value of an input current image frame and a particular target luminance value, selecting a convergent coefficient value based on the determined presumptive error value, determining a weight value of an adaptive filter based on the determined convergent coefficient value, and determining an exposure value for a next image frame based on the selected weight value, the determined presumptive error value and the exposure value of the current image frame.

REFERENCES:
patent: 5703644 (1997-12-01), Mori et al.
patent: 2004/0066464 (2004-04-01), Ueyama
patent: 2005/0068428 (2005-03-01), Uchida
patent: 2006/0062092 (2006-03-01), Ueyama

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Mobile communications terminal for compensating automatic... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mobile communications terminal for compensating automatic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mobile communications terminal for compensating automatic... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3934089

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.