Patent №
US 4,872,058
Granted
1989-10-03
Filed 1987
Owner
CANON KABUSHIKI KAISHA, 3-30-2, SHIMOMARUKO, OHTA-KU, TOKYO, JAPAN
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
07106427
An automatic focusing device which is arranged to perform a focusing action by detecting the peak value of a high frequency component of a video signal obtained from within a focus detecting area set on the image sensing plane of an image sensor and by driving a photo taking optical system in such a way as to increase the detected peak value comprises: a peak position detecting circuit which locates a position on the image sensing plane at which the peak value of the high frequency component of the video signal is detected; and a gate control circuit which changes the position of the focus detecting area in accordance with the detected peak position which is located by the peak position detecting circuit.
AI classification
Ownership
CANON KABUSHIKI KAISHA, 3-30-2, SHIMOMARUKO, OHTA-KU, TOKYO, JAPAN
assignment · 47940524
Assignors
BABA, TAKESHI, NIWA, YUKICHI
On an employer assignment, the assignors are typically the inventors.