Image sensing apparatus with settable focus detection area

Details Image sensing apparatus with settable focus detection area Image sensing apparatus with settable focus detection area

1992-06-25

1993-02-16

Groody, James J.

Facsimile and static presentation processing

Facsimile

Recording apparatus

354402, 354430, H04N 5232, H04N 5225, H04N 5238

Patent

active

051875853

ABSTRACT:
An automatic focusing device which is capable of movably setting a focus detecting area on an image sensing plane comprises a position detecting circuit which detects the position of a picture-taking object within the focus detecting area, a storage circuit which stores a plurality of object position data detected at different points of time by the position detecting circuit, a computing circuit which computes the moving position of the focus detecting area by smoothing the object position data stored by the storage circuit and object position data currently detected, and an area setting circuit which shifts the focus detecting area on the basis of the shifting position computed by the computing circuit.

REFERENCES:
patent: 4614975 (1986-09-01), Kaite
patent: 4717959 (1988-01-01), Isago
patent: 4730201 (1988-03-01), Sasagaki
patent: 4816858 (1989-03-01), Watanabe et al.
patent: 4841325 (1989-06-01), Hoshino et al.
patent: 4853789 (1989-08-01), Murashina et al.
patent: 4871906 (1989-10-01), Ueda et al.
patent: 4872058 (1989-10-01), Baba et al.

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