Automatic focusing system

Photography – Self-organizing system

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

396101, 396125, G03B 1700

Patent

active

056665628

ABSTRACT:
An automatic focusing system comprises a focus detecting circuit arranged to detect the state of focus on the basis of a signal component which is extracted from an image signal and varies with the state of focus, a speed control circuit arranged to collate detected information on the signal component with preset conditions and to set a focus adjusting speed on the basis of a degree to which the detected information conforms with the conditions, and a circuit arranged to vary the setting of the conditions according to the level of the signal component of the image signal.

REFERENCES:
patent: 3896304 (1975-07-01), Aoki et al.
patent: 4133606 (1979-01-01), Hosoe et al.
patent: 4392726 (1983-07-01), Kimura
patent: 4484806 (1984-11-01), Onishi et al.
patent: 4804831 (1989-02-01), Baba et al.
patent: 4922346 (1990-05-01), Hidaka et al.
patent: 4965443 (1990-10-01), Yamasaki et al.
patent: 4967279 (1990-10-01), Murashima
patent: 4967280 (1990-10-01), Takuma et al.
patent: 4969045 (1990-11-01), Haruki et al.
patent: 5003339 (1991-03-01), Kikuchi et al.
patent: 5005086 (1991-04-01), Iwamoto et al.
patent: 5121151 (1992-06-01), Kawabata et al.
Patent Abstract of Japan, vol. 12, No. 385, Oct. 14, 1988, Summary of JP-A-63128878.
IEEE Transactions on Consumer Electronics, vol. CE-32, No. 3, Aug. 1986, pp. 312-318.

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

Automatic focusing system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-77992

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