Method and apparatus for automatic focusing in video camera

Details Method and apparatus for automatic focusing in video camera Method and apparatus for automatic focusing in video camera

1983-04-25

1985-07-23

Rubinson, Gene Z.

Facsimile and static presentation processing

Facsimile

Recording apparatus

354400, H04N 526

Patent

active

045311579

ABSTRACT:
A method and apparatus for automatically adjusting a focal point of a taking lens in an apparatus such as a video camera or the like designed for reproducing continuously a behavior of an object. Provided are a detection and recognition step for determining whether the object is in motion and a control step for controlling in dependence on the output of the detection and recognition step a time interval at which a distance measuring step for measuring a distance to the object is performed in such a manner that the time interval for the stationary object is longer as compared with the case where the object is moving, whereby energy consumption is suppressed to a minimum.

REFERENCES:
patent: 4178087 (1979-12-01), Shenk et al.
patent: 4218119 (1980-08-01), Schickedanz
patent: 4294531 (1981-10-01), Shenk
patent: 4320948 (1982-03-01), Hosoe et al.

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