Video camera apparatus with predictably settable image screen de

Details Video camera apparatus with predictably settable image screen de Video camera apparatus with predictably settable image screen de

1993-02-12

1994-08-23

Groody, James J.

Television

Camera, system and detail

Optics

348354, 354402, 354430, H04N 5225, H04N 5232

Patent

active

053411692

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: 4974002 (1990-11-01), Ohnuki et al.
patent: 5005037 (1991-04-01), Akashi et al.
patent: 5196929 (1990-03-01), Miyasaka

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